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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                        MANAGEMENT INVESTMENT COMPANIES



		Investment Company Act file number 811-21043

                         Pioneer High Income Trust
               (Exact name of registrant as specified in charter)


                       60 State Street, Boston, MA 02109
              (Address of principal executive offices) (ZIP code)


            Terrence J. Cullen, Pioneer Investment Management, Inc.,
                       60 State Street, Boston, MA 02109
                    (Name and address of agent for service)


Registrant's telephone number, including area code:  (617) 742-7825


Date of fiscal year end:  March 31


Date of reporting period:  April 1, 2009 through March 31, 2010


Form N-CSR is to be used by management investment companies to file reports with
the Commission not later than 10 days after the transmission to stockholders of
any report that is required to be transmitted to stockholders under Rule 30e-1
under the Investment Company Act of 1940 (17 CFR 270.30e-1).  The Commission may
use the information provided on Form N-CSR in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR,
and the Commission will make this information public. A registrant is not
required to respond to the collection of information contained in Form N-CSR
unless the Form displays a currently valid Office of Management and Budget
("OMB") control number. Please direct comments concerning the accuracy of the
information collection burden estimate and any suggestions for reducing the
burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW,
Washington, DC 20549-0609.  The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. ss. 3507.


ITEM 1. REPORTS TO SHAREOWNERS.


--------------------------------------------------------------------------------
                         Pioneer High
                         Income Trust
--------------------------------------------------------------------------------
                         Annual Report | March 31, 2010
--------------------------------------------------------------------------------

                         Ticker Symbol:    PHT

                         [LOGO]PIONEER
                               Investments(R)


                        visit us: pioneerinvestments.com


Table of Contents


                                                         
Letter to Shareowners                                         2
Portfolio Management Discussion                               4
Portfolio Summary                                             8
Prices and Distributions                                      9
Performance Update                                           10
Schedule of Investments                                      11
Financial Statements                                         36
Notes to Financial Statements                                41
Report of Independent Registered Public Accounting Firm      51
Approval of Investment Advisory Agreement                    54
Trustees, Officers and Service Providers                     58


                       Pioneer High Income Trust | Annual Report | 3/31/10     1


President's Letter

Dear Shareowner,

Stock and bond markets around the globe have begun to recover over the past year
from one of their most tumultuous periods in history. This is a welcome relief,
and we are generally optimistic about the prospects for the economy going
forward. Still, challenges remain. Unemployment is high; consumer demand and
loan growth are weak; and housing has not returned to normal.

At Pioneer, we have long advocated the benefits of investing for the long term.
This strategy has generally performed well for many investors. Those who
remained invested in the market during the downturn have most likely seen their
portfolios start to recover over the past year, as the Dow Jones Industrial
Average climbed back from the depressed levels we saw in early 2009. Many bond
investors have similarly seen a strong rebound, with a broad-based recovery
occurring across many different fixed-income asset classes. The riskiest asset
classes, such as high-yield bonds, outperformed other fixed-income asset classes
during most of 2009.

At Pioneer, we are not changing the approach to investing that we have used for
more than 80 years. We remain focused on company fundamentals and risk
management. Our investment process is based on careful research into individual
companies, quantitative analysis, and active portfolio management. This
three-pillared process, which we apply to each of our portfolios, is supported
by an integrated team approach and is designed to carefully balance risk and
reward. While we see potential opportunities for making money in many corners of
the markets around the globe, it takes research and experience to separate solid
investment opportunities from speculation.

Following this difficult period, many investors are rethinking their approach to
investing and risk management. Some are questioning whether the basic investment
principles they were taught in the past are still useful in today's markets.
Complicating matters is that financial markets remain unpredictable. Our advice,
as always, is to work closely with a trusted financial advisor to discuss your
goals and work together to develop an investment strategy that meets your
individual needs. There is no single best strategy that works for every
investor.

2     Pioneer High Income Trust | Annual Report | 3/31/10


We invite you to learn more about Pioneer and our time-tested approach to
investing by consulting with your financial advisor or visiting us online at
www.pioneerinvestments.com. We greatly appreciate your trust in us and we thank
you for investing with Pioneer.

Sincerely,

/s/Daniel K. Kingsbury

Daniel K. Kingsbury
President and CEO
Pioneer Investment Management USA, Inc.

Any information in this shareowner report regarding market or economic trends or
the factors influencing the Trust's historical or future performance are
statements of the opinion of Trust management as of the date of this report.
These statements should not be relied upon for any other purposes. Past
performance is no guarantee of future results, and there is no guarantee that
market forecasts discussed will be realized.

                       Pioneer High Income Trust | Annual Report | 3/31/10     3


Portfolio Management Discussion | 3/31/10

Signs that the domestic and global economies were rebounding encouraged fixed-
income investors to return to corporate bonds during the 12 months ended March
31, 2010. Credit-sensitive bonds had been selling at depressed levels at the
start of the 12-month period. However, as the economy appeared to improve,
demand increased for foreign and domestic high-yield and investment-grade
corporate bonds and emerging market debt, and their prices rebounded. In the
following interview, Andrew Feltus discusses the factors that influenced the
performance of Pioneer High Income Trust over the 12 months ended March 31,
2010. Mr. Feltus is a member of Pioneer's fixed-income team, which is
responsible for the daily management of the Trust.

Q    How did Pioneer High Income Trust perform during the 12 months ended March
     31, 2010?

A    The Trust performed very well, helped by good security selection and the
     ability to use a leveraged strategy -- employing borrowed funds -- that
     added to results in a rising environment. For the 12 months ended March 31,
     2010, Pioneer High Income Trust produced a total return of 114.64% at net
     asset value and 119.69% at market price, with shares of the Trust selling
     at a 16.3% premium to net asset value at the end of the period. The Trust's
     benchmark, the Bank of America Merrill Lynch High Yield Master II Index
     (the BOFA ML Index) returned 57.22% over the same 12-month period. On March
     31, 2010, the Trust's 30-day SEC yield was 11.10%.

Q    What were the principal factors that contributed to the Trust's performance
     during the 12 months ended March 31, 2010?

A    The 12-month period featured an unprecedented surge in domestic high-yield
     corporate bond performance. Securities rated below investment-grade were
     selling at distressed prices at the start of the period, consistent with
     default rates even higher than those seen during the Great Depression. In
     the ensuing months, the markets grew more confident that economic
     conditions were not so dire and that the economy was likely to escape from
     a prolonged recession. Investors moved back into the high-yield sector and
     prices in the group rallied. By March 31, 2010, domestic high-yield
     securities had recorded their best-ever performance for any 12-month
     period, while international high-yield, emerging market debt and
     investment-grade corporate securities also delivered robust returns.

     Throughout the period, the Trust focused primarily on domestic high-yield
     bonds, which represented 65.8% of the Trust's total investment portfolio at
     the start of the period and 67.9% of the Trust's total investment portfolio
     at

4     Pioneer High Income Trust | Annual Report | 3/31/10


     period end. An additional 18.4% of the Trust's investment portfolio was
     invested in international high-yield securities and emerging market debt,
     both at the beginning and end of the Trust's fiscal year.

     The strong returns achieved in those sectors were amplified by the Trust's
     use of borrowed funds -- or leverage. The Trust was able to borrow money at
     low interest rates and deploy those borrowed funds into the high-yield
     sectors. At the start of the period on April 1, 2009, 43.6% of the Trust's
     portfolio was leveraged; at the end of the period on March 31, 2010, 29.1%
     was leveraged. The reduction in leverage reflected the increase in the
     value of the invested assets.

Q    What were your principal strategies during the 12 months ended March 31,
     2010, and how did they influence the Trust's performance results?

A    The Trust maintained a broadly diversified exposure to the high-yield
     group. While we sought opportunities for price appreciation, we also tried
     to maintain dividend distributions to shareholders. We tended to place
     greater emphasis on the upper tiers of the high-yield universe,
     overweighting the Trust's portfolio in B-rated debt and de-emphasizing the
     lower-rated CCC group. During a period in which almost all high-yield
     securities appreciated in value, the Trust's broad exposure to the sector
     provided significant support to performance.

     If there was one decision that held back results somewhat, it was the
     Trust's underweighting of bonds rated CCC or below. Those very low-rated
     securities generally performed even better than the overall high-yield
     sector.

Q    What individual securities had a particularly noteworthy influence on the
     Trust's performance during the 12 months ended March 31, 2010?

A    Over the period, we tended to tilt the Trust toward bonds of companies in
     more economically sensitive, or cyclical industries, such as basic
     materials and capital goods. Many of the investments performed particularly
     well over the 12-month period.

     Materials holdings that fared especially well included: Lyondell, a
     chemicals company; Algoma, a Canadian steel corporation; and Noranda, a
     U.S. aluminum producer. In capital goods, two standouts were: Lear, a
     manufacturer of components for the automotive industry that was reorganized
     after filing for bankruptcy; and Commercial Vehicle Group, a manufacturer
     of parts for the truck industry. Bond holdings of Minerva and Grupo Bertin,
     two Brazilian beef companies, also snapped back in price, aided by
     improving conditions in emerging markets, rising commodity prices and the
     appreciation in value of Brazil's currency.

                       Pioneer High Income Trust | Annual Report | 3/31/10     5


     At the start of the period, we generally avoided the debt of financial
     corporations, as firms in that sector were under severe stress because of
     the credit crisis. However, when many investment-grade financial firms saw
     their credit ratings downgraded, our fundamental credit research revealed
     new opportunities. We raised the Trust's allocation to financial industry
     bonds from approximately 4.5% of the investment portfolio at the start of
     the period, to about 10% of the investment portfolio by the period's end.
     Many of the Trust's financials holdings performed particularly well, adding
     to the Trust's gains for the period. Individual contributors included
     securities of Wells Fargo, State Street, PNC Financial, and Goldman Sachs.

     On the negative side, the Trust's investments in securities from the health
     care and utilities sectors, two less-cyclical groups, tended to
     underperform the overall market, despite producing positive returns of 30%
     or better during the year.

     Also, even during a year of generally robust returns, some of the Trust's
     individual investments performed poorly. The underperforming securities
     included those backed by the Little Traverse Bay Native American casino in
     Michigan, which defaulted, and Pegasystems, a software producer which also
     defaulted on its bonds in January 2010 and is undergoing a restructuring.

Q    What is your investment outlook?

A    We see a period of sustained economic growth and rising corporate profits
     during 2010, which should continue to support high-yield valuations. In the
     domestic economy, we think the troubled housing market should stabilize and
     retail sales and employment should start increasing, although improvement
     is likely to be moderate. However, the yield spreads -- or yield advantages
     over Treasuries -- of lower-rated securities now appear close to the
     long-term market averages. Therefore, shareowners should not expect a
     repeat of the results of the past 12 months.

     We do have to be cautious, though, with the Federal Reserve Board
     potentially poised to start raising short-term interest rates should
     inflationary pressures start increasing.

     In this environment, fundamental analysis and individual security selection
     should be increasingly important to achieving good performance. We think
     this type of market plays to Pioneer's long-term strengths in both credit
     research and fundamental analysis.

Please refer to the Schedule of Investments on pages 11-35 for a full listing of
Trust securities.

6     Pioneer High Income Trust | Annual Report | 3/31/10


Investments in high-yield or lower-rated securities are subject to
greater-than-average risk. The Trust may invest in securities of issuers that
are in default or that are in bankruptcy.

Investing in foreign and/or emerging markets securities involves risks relating
to interest rates, currency exchange rates, economic, and political conditions.

When interest rates rise, the prices of fixed-income securities in the Trust
will generally fall. Conversely, when interest rates fall the prices of
fixed-income securities in the Trust will generally rise. Investments in the
Trust are subject to possible loss due to the financial failure of underlying
securities and their inability to meet their debt obligations.

The Trust may invest up to 50% of its total assets in illiquid securities.
Illiquid securities may be difficult to dispose of at a fair price at the times
when the Trust believes it is desirable to do so and their market price is
generally more volatile than that of more liquid securities. Illiquid securities
are also more difficult to value and investment of the Trust's assets in
illiquid securities may restrict the Trust's ability to take advantage of market
opportunities.

The Trust uses leverage through the issuance of preferred shares. Leverage
creates significant risks, including the risk that the Trust's income or capital
appreciation will not be sufficient to cover the cost of leverage, which may
adversely affect the return for the holders of common shares. Since February of
2008, regularly scheduled auctions for the Trust's preferred shares have failed
and preferred shareowners have not been able to sell their shares at auction.
The Board of Trustees of the Trust has considered, and continues to consider,
this issue.

The Trust is required to maintain certain regulatory and rating agency asset
coverage requirements in connection with its outstanding preferred shares. In
order to maintain required asset coverage levels, the Trust may be required to
alter the composition of its investment portfolio or take other actions, such as
redeeming preferred shares with the proceeds from portfolio transactions, at
what might be inopportune times in the market. Such actions could reduce the net
earnings or returns to holders of the Trust's common shares over time.

Risks of investing in the Trust are discussed in greater detail in the Trust's
original offering documents relating to its common shares and shareowner reports
issued from time to time.

Past performance is no guarantee of future results, and there is no guarantee
that market forecasts discussed will be realized.

Any information in this shareowner report regarding market or economic trends or
the factors influencing the Trust's historical or future performance are
statements of the opinion of Trust management as of the date of this report.
These statements should not be relied upon for any other purposes.

                       Pioneer High Income Trust | Annual Report | 3/31/10     7


Portfolio Summary | 3/31/10

Portfolio Diversification
--------------------------------------------------------------------------------
(As a percentage of total investment portfolio)

[THE FOLLOWING DATA IS A REPRESENTATION OF A PIE CHART IN THE PRINTED MATERIAL]


                                                                         
Corporate Bonds & Notes                                                     75.1%
Temporary Cash Investments                                                   6.9%
Convertible Bonds                                                            5.2%
Municipal Bonds                                                              3.8%
Common Stock                                                                 2.0%
Asset Backed Securities                                                      1.8%
Floating Rate Loan Interests                                                 1.4%
Sovereign Debt Obligations                                                   1.3%
Collateralized Mortgage Obligations                                          1.1%
Convertible Preferred Stock                                                  0.6%
Municipal Collateralized Debt Obligations                                    0.4%
Fixed Rate Loan Interests                                                    0.2%
Rights/Warrants                                                              0.2%


Portfolio Maturity
--------------------------------------------------------------------------------
(As a percentage of long-term holdings)

[THE FOLLOWING DATA IS A REPRESENTATION OF A PIE CHART IN THE PRINTED MATERIAL]


                                                                         
0-1 Year                                                                    11.2%
1-3 Years                                                                   27.3%
3-4 Years                                                                   31.8%
4-6 Years                                                                   22.0%
6-8 Years                                                                    2.2%
8+ Years                                                                     5.5%


10 Largest Holdings
--------------------------------------------------------------------------------
(As a percentage of long-term holdings)*


                                                                      
 1. Xerox Capital Trust I, 8.0%, 2/1/27                                     2.32%
 2. NCO Group, Inc., 11.875%, 11/15/14                                      1.65
 3. Cia Brasileira de Bebida, 10.5%, 12/15/11                               1.35
 4. Cricket Communications, Inc., 9.375%, 11/1/14                           1.30
 5. Waste Services, Inc., 9.5%, 4/15/14                                     1.20
 6. Exopack Holding Corp., 11.25%, 2/1/14                                   1.14
 7. Graphic Packaging International, Inc., 9.5%, 8/15/13                    1.14
 8. PetroQuest Energy, Inc., 10.375%, 5/15/12                               1.07
 9. Kabel Deutschland GMBH, 10.75%, 7/1/14                                  1.07
10. Allmerica Financial Corp., 7.625%, 10/15/25                             1.02


*    This list excludes temporary cash and derivative investments. The portfolio
     is actively managed, and current holdings may be different. The holdings
     listed should not be considered recommendations to buy or sell any security
     listed.

8     Pioneer High Income Trust | Annual Report | 3/31/10


Prices and Distributions | 10/31/10

Market Value per Common Share
--------------------------------------------------------------------------------



---------------------------------------------
                   3/31/10         3/31/09
---------------------------------------------
                             
                   $ 15.38         $ 8.03
---------------------------------------------


Net Asset Value per Common Share
--------------------------------------------------------------------------------



---------------------------------------------
                   3/31/10         3/31/09
---------------------------------------------
                             
                   $ 13.23         $ 7.07
---------------------------------------------


Distributions per Common Share
--------------------------------------------------------------------------------



---------------------------------------------------------------
                      Net
                  Investment     Short-Term       Long-Term
                    Income      Capital Gains    Capital Gains
---------------------------------------------------------------
                                            
4/1/09-3/31/10     $ 1.6500         $ --             $ --
---------------------------------------------------------------


                       Pioneer High Income Trust | Annual Report | 3/31/10     9


Performance Update | 3/31/10

Investment Returns
--------------------------------------------------------------------------------
The mountain chart on the right shows the change in market value, plus
reinvested dividends and distributions, of a $10,000 investment made in common
shares of Pioneer High Income Trust, compared to that of the Bank of America
Merrill Lynch High Yield Master II Index.



Cumulative Total Returns
(As of March 31, 2010)
--------------------------------------------------------
                           Net Asset             Market
Period                     Value (NAV)           Price
                                           
--------------------------------------------------------
Life-of-Trust
(4/26/02)                  147.43%               174.78%
5 Years                     57.00                 97.25
1 Year                     114.64                119.69
--------------------------------------------------------


[THE FOLLOWING DATA IS A REPRESENTATION OF A MOUNTAIN CHART IN THE PRINTED
MATERIAL]

Value of $10,000 Investment



                        Pioneer High          Bank of America Merrill Lynch
                        Income Trust            High Yield Master II Index
                                                   
4/02                      $10,000                        $10,000
                          $10,409                        $10,169
3/04                      $13,980                        $12,428
                          $15,758                        $13,291
3/06                      $17,478                        $14,252
                          $19,957                        $15,903
3/08                      $18,476                        $15,344
                          $11,527                        $12,233
3/10                      $27,477                        $19,232


Call 1-800-225-6292 or visit www.pioneerinvestments.com for the most recent
month-end performance results. Current performance may be lower or higher than
the performance data quoted.

Performance data shown represents past performance. Past performance is no
guarantee of future results. Investment return and market price will fluctuate,
and your shares may trade below net asset value (NAV), due to such factors as
interest rate changes and the perceived credit quality of borrowers.

Total investment return does not reflect broker sales charges or commissions.
All performance is for common shares of the Trust.

Closed-end funds, unlike open-end funds, are not continuously offered. There is
a one-time public offering and, once issued, shares of closed-end funds are sold
in the open market through a stock exchange and frequently trade at prices lower
than their NAV. NAV per common share is total assets less total liabilities,
which includes preferred shares, divided by the number of common shares
outstanding.

When NAV is lower than market price, dividends are assumed to be reinvested at
the greater of NAV or 95% of the market price. When NAV is higher, dividends are
assumed to be reinvested at prices obtained under the Trust's dividend
reinvestment plan.

The performance table and graph do not reflect the deduction of fees and taxes
that a shareowner would pay on Trust distributions or the sale of Trust shares.

Index comparison begins April 30, 2002. The Bank of America Merrill Lynch High
Yield Master II Index is a commonly accepted measure of the performance of high
yield securities. Index returns are calculated monthly, assume reinvestment of
dividends and, unlike Trust returns, do not reflect any fees, expenses or sales
charges. The Index is not leveraged. You cannot invest directly in the Index.

10     Pioneer High Income Trust | Annual Report | 3/31/10


Schedule of Investments | 3/31/10



-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               ASSET BACKED SECURITIES -- 2.6% of Net Assets
                               TRANSPORTATION -- 0.1%
                               Airlines -- 0.1%
  256,736              B/B1    Continental Airlines, Inc., Series B, 8.499%, 11/1/12      $     251,602
                                                                                          -------------
                               Total Transportation                                       $     251,602
-------------------------------------------------------------------------------------------------------
                               BANKS -- 1.1%
                               Thrifts & Mortgage Finance -- 1.1%
  606,923(a)         AA/Aa2    ACE Securities Corp., 0.696%, 4/25/35                      $     582,867
  531,442(a)        AA+/Aa1    ACE Securities Corp., 0.846%, 12/25/34                           380,444
  385,936(a)         B-/Ba1    Amortizing Residential Collateral Trust,
                               1.521%, 1/25/32                                                  169,188
1,069,134(a)         BB/Ba3    Aviation Capital Group Trust, 0.71%,
                               11/15/25 (144A)                                                  588,024
  280,000(a)       CCC/Baa2    Bear Stearns Asset Backed Securities Trust,
                               0.696%, 1/25/47                                                   95,960
  215,232(a)         AAA/A2    FBR Securitization Trust, 0.596%, 10/25/35                       132,505
  965,000(a)        BBB/Ba1    Home Equity Asset Trust, 0.356%, 3/25/37                         710,123
  643,766(a)         BB-/A2    Morgan Stanley Capital, Inc., 0.356%, 2/25/37                    580,703
  324,951(a)         B/Baa2    Morgan Stanley Capital, Inc., 0.356%, 2/25/37                    282,821
  439,208(a)        B-/Baa1    Residential Asset Securities Corp., 0.476%, 1/25/36              386,299
                                                                                          -------------
                               Total Banks                                                $   3,908,934
-------------------------------------------------------------------------------------------------------
                               DIVERSIFIED FINANCIALS -- 0.4%
                               Other Diversified Financial Services -- 0.2%
1,988,500(a)         B/Caa1    Aircraft Finance Trust, 0.71%, 5/15/24 (144A)              $     785,458
  239,283(a)        BB-/Ba3    Aircraft Finance Trust, 0.73%, 5/15/24 (144A)                    167,498
                                                                                          -------------
                                                                                          $     952,956
-------------------------------------------------------------------------------------------------------
                               Specialized Finance -- 0.2%
  850,000         BBB-/Baa3    Dominos Pizza Master Issuer LLC, 5.261%,
                               4/25/37 (144A)                                             $     767,788
                                                                                          -------------
                               Total Diversified Financials                               $   1,720,744
-------------------------------------------------------------------------------------------------------
                               UTILITIES -- 1.0%
                               Multi-Utilities -- 1.0%
3,868,223             NR/NR    Ormat Funding Corp., 8.25%, 12/30/20                       $   3,713,494
                                                                                          -------------
                               Total Utilities                                            $   3,713,494
-------------------------------------------------------------------------------------------------------
                               TOTAL ASSET BACKED SECURITIES
                               (Cost $9,356,599)                                          $   9,594,774
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     11


Schedule of Investments | 3/31/10 (continued)



-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               COLLATERALIZED MORTGAGE BACKED SECURITIES -- 1.7%
                               of Net Assets
                               CONSUMER SERVICES -- 0.4%
                               Restaurants -- 0.4%
  300,000         BBB-/Baa3    DB Master Finance LLC, 5.779%, 6/20/31 (144A)              $     291,243
1,245,000            BB/Ba3    DB Master Finance LLC, 8.285%, 6/20/31 (144A)                  1,121,596
                                                                                          -------------
                               Total Consumer Services                                    $   1,412,839
-------------------------------------------------------------------------------------------------------
                               BANKS -- 1.3%
                               Thrifts & Mortgage Finance -- 1.3%
  835,000(a)          A/Ba3    Carrington Mortgage Loan Trust, 0.346%, 10/25/36           $     688,738
  591,461(a)        AA+/Ba3    Carrington Mortgage Loan Trust, 0.366%, 2/25/37                  538,260
1,504,000(a)        BBB+/B3    Carrington Mortgage Loan Trust, 0.446%, 2/25/37                  815,101
  202,677(a)           A/NR    Chase Commercial Mortgage Securities Corp.,
                               8.348%, 4/15/32                                                  201,934
  391,707(a)        CCC/Ba2    Countrywide Alternative Loan Trust, 0.576%, 10/25/35             220,128
  461,759(a)         B/Baa3    Countrywide Alternative Loan Trust, 0.596%, 9/25/35              276,074
  647,504(a)         CCC/B3    Countrywide Alternative Loan Trust, 0.606%, 1/25/36              193,341
  286,745(a)        CCC/Ba1    Countrywide Home Loan Mortgage Pass Through Trust,
                               0.606%, 3/25/35                                                   96,535
  516,970(a)          B+/B1    JPMorgan Mortgage Trust, 4.954%, 11/25/35                        499,046
1,536,636(a)          CC/Ca    Luminent Mortgage Trust, 0.506%, 7/25/36                         151,431
  391,038(a)      BBB-/Baa1    Structured Asset Mortgage Investments, Inc.,
                               0.556%, 9/25/45                                                  226,485
  891,403(a)        AAA/Aa1    WaMu Mortgage Pass Through Certificates,
                               0.476%, 4/25/45                                                  711,114
                                                                                          -------------
                               Total Banks                                                $   4,618,187
-------------------------------------------------------------------------------------------------------
                               TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS
                               (Cost $7,417,643)                                          $   6,031,026
-------------------------------------------------------------------------------------------------------
                               CORPORATE BONDS & NOTES -- 109.8%
                               of Net Assets
                               ENERGY -- 12.0%
                               Coal & Consumable Fuels -- 1.2%
1,350,000            BB/Ba3    Bumi Capital Pte, Ltd., 12.0%, 11/10/16 (144A)             $   1,474,875
2,329,000            BB-/B1    Drummond Co., Inc., 9.0%, 10/15/14 (144A)                      2,398,870
  640,000           B+/Caa1    Murray Energy Corp., 10.25%, 10/15/15 (144A)                     656,000
                                                                                          -------------
                                                                                          $   4,529,745
-------------------------------------------------------------------------------------------------------
                               Oil & Gas Drilling -- 1.4%
2,982,936             NR/NR    DDI Holding AS, 9.3%, 1/19/12 (144A)                       $   2,878,533
  500,000              B/B2    Hercules Offshore, Inc., 10.5%, 10/15/17 (144A)                  498,750
1,900,000              B/B3    Pioneer Drilling Co., 9.875%, 3/15/18 (144A)                   1,881,000
                                                                                          -------------
                                                                                          $   5,258,283
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

12     Pioneer High Income Trust | Annual Report | 3/31/10




------------------------------------------------------------------------------------------------------------------
                           S&P/
Principal                  Moody's
Amount                     Ratings
USD ($)                    (unaudited)                                                               Value
------------------------------------------------------------------------------------------------------------------
                                                                                            
                                          Oil & Gas Equipment & Services -- 2.3%
        3,000,000                B-/B3    Aquilex Holdings LLC/Aquilex Finance Corp., 11.125%,
                                          12/15/16 (144A)                                            $   3,225,000
          600,000(a)(b)          NR/NR    DP Producer AS, 0.0%, 12/5/11 (144A)                               6,000
          865,000                B+/B1    Expro Finance Luxembourg SCA, 8.5%,
                                          12/15/16 (144A)                                                  873,650
          238,581(b)             NR/NR    Nexus 1 Pte, Ltd., 10.5%, 3/7/12 (144A)                            2,386
NOK     4,600,000(b)             NR/NR    Petrojack AS, 11.0%, 4/19/10                                      85,247
          385,386(a)(b)          NR/NR    PetroProd, Ltd., 0.0%, 1/12/12 (144A)                                385
          400,000(a)             NR/NR    Sevan Marine ASA, 3.524%, 5/14/13 (144A)                         336,000
        2,500,000                NR/NR    Sevan Marine ASA, 9.25%, 12/20/11 (144A)                       2,400,000
        1,806,000                NR/NR    Skeie Drilling & Production ASA, 11.25%,
                                          3/8/13 (144A)                                                  1,345,470
                                                                                                     -------------
                                                                                                     $   8,274,138
------------------------------------------------------------------------------------------------------------------
                                          Oil & Gas Exploration & Production -- 5.8%
          775,000                B+/B2    Berry Petroleum Co., 10.25%, 6/1/14                        $     854,438
          390,000                BB/B1    Denbury Resources, Inc., 9.75%, 3/1/16                           429,000
        1,750,000               BB-/B2    Hilcorp Energy I LP, 9.0%, 6/1/16 (144A)                       1,820,000
        1,045,000                 B/B3    Linn Energy LLC, 11.75%, 5/15/17 (144A)                        1,186,075
        2,020,000                B+/B3    Mariner Energy, Inc., 11.75%, 6/30/16                          2,267,450
        2,500,000                NR/NR    Norse Energy Corp. ASA, 6.5%, 7/14/11 (144A)                   2,237,500
NOK     3,000,000                NR/NR    Norse Energy Corp. ASA, 10.0%, 7/13/10                           495,308
NOK     5,000,000                NR/NR    Norwegian Energy Co. AS, 12.9%, 11/20/14                         876,055
          945,000                 B/B3    PetroHawk Energy Corp., 9.125%, 7/15/13                          986,344
        5,300,000               B/Caa1    PetroQuest Energy, Inc., 10.375%, 5/15/12                      5,353,000
        3,660,000                B-/B3    Quicksilver Resources, Inc., 7.125%, 4/1/16                    3,477,000
        1,250,000(c)             B+/B3    SandRidge Energy, Inc., 8.625%, 4/1/15                         1,218,750
                                                                                                     -------------
                                                                                                     $  21,200,920
------------------------------------------------------------------------------------------------------------------
                                          Oil & Gas Refining & Marketing -- 1.0%
        1,000,000               BB-/B3    Coffeyville Resources LLC, 10.875%, 4/1/17 (144A)          $     987,500
          175,000                 B/B2    Petroplus Finance, Ltd., 7.0%, 5/1/17 (144A)                     150,500
        2,215,000              BB+/Ba1    Tesoro Corp., 9.75%, 6/1/19                                    2,314,675
                                                                                                     -------------
                                                                                                     $   3,452,675
------------------------------------------------------------------------------------------------------------------
                                          Oil & Gas Storage & Transportation -- 0.3%
          350,000(a)            BB/Ba1    Enterprise Products Operating LLC, 8.375%, 8/1/66          $     355,250
          945,000(a)            BB/Ba1    Southern Union Co., 7.2%, 11/1/66                                876,488
                                                                                                     -------------
                                                                                                     $   1,231,738
                                                                                                     -------------
                                          Total Energy                                               $  43,947,499
------------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     13


Schedule of Investments | 3/31/10 (continued)



------------------------------------------------------------------------------------------------------------------
                           S&P/
Principal                  Moody's
Amount                     Ratings
USD ($)                    (unaudited)                                                               Value
------------------------------------------------------------------------------------------------------------------
                                                                                            
                                          MATERIALS -- 17.4%
                                          Aluminum -- 0.2%
        1,200,000(b)             NR/NR    Asia Aluminum Holdings, Ltd., 8.0%,
                                          12/23/11 (144A)                                            $     144,000
          753,411(a)(c)       CCC/Caa1    Noranda Aluminum Acquisition Corp.,
                                          5.274%, 5/15/15                                                  591,428
                                                                                                     -------------
                                                                                                     $     735,428
------------------------------------------------------------------------------------------------------------------
                                          Commodity Chemicals -- 2.9%
        2,240,000(b)             NR/NR    ARCO Chemical Co., 9.8%, 2/1/20                            $   1,568,000
        3,250,000                NR/NR    Basell Finance Co., 8.1%, 3/15/27 (144A)                       3,022,500
        1,000,000                B/Ba3    Invista, 9.25%, 5/1/12 (144A)                                  1,012,500
        4,500,000             BBB-/Ba1    Methanex Corp., 8.75%, 8/15/12                                 4,725,000
EURO      540,000(b)             NR/NR    Nell AF S.a.r.l., 8.375%, 8/15/15 (144A)                         175,363
                                                                                                     -------------
                                                                                                     $  10,503,363
------------------------------------------------------------------------------------------------------------------
                                          Construction Materials -- 0.1%
          585,000(n)            C/Caa3    U.S. Concrete, Inc., 8.375%, 4/1/14                        $     345,150
------------------------------------------------------------------------------------------------------------------
                                          Diversified Chemicals -- 0.3%
EURO      350,000            CCC-/Caa3    Ineos Group Holdings Plc, 7.875%, 2/15/16 (144A)           $     371,766
          925,000            CCC-/Caa3    Ineos Group Holdings Plc, 8.5%, 2/15/16 (144A)                   763,125
                                                                                                     -------------
                                                                                                     $   1,134,891
------------------------------------------------------------------------------------------------------------------
                                          Diversified Metals & Mining -- 2.5%
        1,288,533(c)             NR/NR    Blaze Recycling & Metals LLC, 13.0%, 7/16/12               $   1,030,827
        2,890,000                 B/B2    FMG Finance Pty., Ltd., 10.625%, 9/1/16 (144A)                 3,330,725
        4,070,000              BB+/Ba1    Teck Resources, Ltd., 10.25%, 5/15/16                          4,843,300
                                                                                                     -------------
                                                                                                     $   9,204,852
------------------------------------------------------------------------------------------------------------------
                                          Forest Products -- 0.5%
        1,584,000               BB/Ba2    Sino-Forest Corp., 10.25%, 7/28/14 (144A)                  $   1,754,280
------------------------------------------------------------------------------------------------------------------
                                          Materials -- 1.3%
        5,690,000              CCC+/B3    AGY Holding Corp., 11.0%, 11/15/14                         $   4,893,400
------------------------------------------------------------------------------------------------------------------
                                          Metal & Glass Containers -- 0.7%
        2,500,000              CCC+/B2    AEP Industries, Inc., 7.875%, 3/15/13                      $   2,481,250
------------------------------------------------------------------------------------------------------------------
                                          Paper Packaging -- 3.4%
        2,225,838(d)             NR/NR    Corp Durango SAB de CV, 6.0%, 8/27/16                      $   1,819,623
        2,795,000            CCC+/Caa1    Graham Packaging Co., 9.875%, 10/15/14                         2,899,813
        5,540,000(n)             B-/B3    Graphic Packaging International, Inc., 9.5%, 8/15/13           5,678,500
        2,250,000                 B/NR    U.S. Corrugated, Inc., 10.0%, 6/1/13                           1,946,250
                                                                                                     -------------
                                                                                                     $  12,344,186
------------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

14     Pioneer High Income Trust | Annual Report | 3/31/10




---------------------------------------------------------------------------------------------------------------
                        S&P/
Principal               Moody's
Amount                  Ratings
USD ($)                 (unaudited)                                                               Value
---------------------------------------------------------------------------------------------------------------
                                                                                         
                                       Paper Products -- 2.4%
        2,000,000             B+/B1    Appleton Papers, Inc., 10.5%, 6/15/15 (144A)               $   1,990,000
          645,000             B+/B1    Cellu Tissue Holdings, Inc., 11.5%, 6/1/14                       719,175
          405,000            BB/Ba3    Clearwater Paper Corp., 10.625%, 6/15/16 (144A)                  449,550
        5,450,000             B-/B3    Exopack Holding Corp., 11.25%, 2/1/14                          5,681,625
                                                                                                  -------------
                                                                                                  $   8,840,350
---------------------------------------------------------------------------------------------------------------
                                       Specialty Chemicals -- 0.8%
        3,000,000(n)      CCC+/Caa1    Hexion U.S. Finance Corp., 9.75%, 11/15/14                 $   3,060,000
---------------------------------------------------------------------------------------------------------------
                                       Steel -- 2.3%
        4,660,000(n)      CCC+/Caa2    Algoma Acquisition Corp., 9.875%, 6/15/15 (144A)           $   4,287,200
        2,400,000           BB+/Ba1    CSN Islands VIII Corp., 9.75%, 12/16/13 (144A)                 2,808,000
        1,250,000              B/B3    Severstal Columbus LLC, 10.25%, 2/15/18 (144A)                 1,293,750
                                                                                                  -------------
                                                                                                  $   8,388,950
                                                                                                  -------------
                                       Total Materials                                            $  63,686,100
---------------------------------------------------------------------------------------------------------------
                                       CAPITAL GOODS -- 9.0%
                                       Aerospace & Defense -- 1.9%
        3,600,000             B-/NR    Aeroflex, Inc., 11.75%, 2/15/15                            $   3,852,000
        1,465,000            BB/Ba3    BE Aerospace, Inc., 8.5%, 7/1/18                               1,563,887
          620,000           BB+/Ba2    Bombardier, Inc., 8.0%, 11/15/14 (144A)                          649,450
          570,000            BB/Ba3    DigitalGlobe, Inc., 10.5%, 5/1/14 (144A)                         614,175
          295,000              B/B1    GeoEye, Inc., 9.625%, 10/1/15 (144A)                             301,638
                                                                                                  -------------
                                                                                                  $   6,981,150
---------------------------------------------------------------------------------------------------------------
                                       Building Products -- 0.8%
        1,935,000(b)          NR/Ca    Industrias Unidas SA de CV, 11.5%,
                                       11/15/16 (144A)                                            $   1,006,200
        1,790,000             B-/B3    Intcomex, Inc., 13.25%, 12/15/14 (144A)                        1,807,900
                                                                                                  -------------
                                                                                                  $   2,814,100
---------------------------------------------------------------------------------------------------------------
                                       Construction & Farm Machinery & Heavy Trucks -- 2.5%
          570,000          BB-/Caa1    American Railcar Industries, Inc., 7.5%, 3/1/14            $     544,350
        3,250,000          CCC/Caa3    Commercial Vehicle Group, Inc., 8.0%, 7/1/13                   2,600,000
        3,975,000              B/B3    Hawk Corp., 8.75%, 11/1/14                                     3,975,000
        1,524,000          BB-/Caa1    Manitowoc Co., Inc., 9.5%, 2/15/18                             1,588,770
          275,000             B-/B2    Titan International, Inc., 8.0%, 1/15/12                         275,000
                                                                                                  -------------
                                                                                                  $   8,983,120
---------------------------------------------------------------------------------------------------------------
                                       Industrial Conglomerates -- 0.9%
        3,180,000(b)          NR/NR    Indalex Holding Corp., 11.5%, 2/1/14                       $      35,775
        3,889,000(o)      CCC+/Caa2    Park-Ohio Industries, Inc., 8.375%, 11/15/14                   3,432,042
                                                                                                  -------------
                                                                                                  $   3,467,817
---------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     15


Schedule of Investments | 3/31/10 (continued)



------------------------------------------------------------------------------------------------------------------
                           S&P/
Principal                  Moody's
Amount                     Ratings
USD ($)                    (unaudited)                                                               Value
------------------------------------------------------------------------------------------------------------------
                                                                                            
                                          Industrial Machinery -- 1.9%
        2,440,000                B-/NR    Industrias Metalurgicas Pescarmona SA, 11.25%,
                                          10/22/14 (144A)                                            $   2,302,750
        5,170,000                B-/B3    Mueller Water Products, Inc., 7.375%, 6/1/17                   4,665,925
                                                                                                     -------------
                                                                                                     $   6,968,675
------------------------------------------------------------------------------------------------------------------
                                          Trading Companies & Distributors -- 1.0%
          500,000                 B/B3    Avis Budget Car Rental LLC/Avis Budget Finance, Inc.,
                                          9.625%, 3/15/18 (144A)                                     $     522,500
        3,370,000                 B/B1    Wesco Distribution, Inc., 7.5%, 10/15/17                       3,289,962
                                                                                                     -------------
                                                                                                     $   3,812,462
                                                                                                     -------------
                                          Total Capital Goods                                        $  33,027,324
------------------------------------------------------------------------------------------------------------------
                                          COMMERCIAL & PROFESSIONAL SERVICES -- 6.5%
                                          Commercial Printing -- 0.7%
        2,560,000                 B/B2    Sheridan Acquisition Corp., 10.25%, 8/15/11                $   2,540,800
------------------------------------------------------------------------------------------------------------------
                                          Diversified Support Services -- 0.9%
            4,450(e)             NR/B3    MSX International UK, 12.5%, 4/1/12 (144A)                 $   3,471,000
------------------------------------------------------------------------------------------------------------------
                                          Environmental & Facilities Services -- 1.7%
        2,180,000(b)(n)          NR/NR    Aleris International, Inc., 10.0%, 12/15/16                $       9,810
          315,000                B+/B2    Casella Waste Systems, Inc., 11.0%, 7/15/14 (144A)               337,838
        1,275,000(a)(b)          NR/NR    Ohio Air Quality Development Authority Revenue,
                                          7.29%, 6/8/22 (144A)                                             127,500
        5,800,000(n)           B-/Caa1    Waste Services, Inc., 9.5%, 4/15/14                            5,974,000
                                                                                                     -------------
                                                                                                     $   6,449,148
------------------------------------------------------------------------------------------------------------------
                                          Office Services & Supplies -- 3.2%
       11,830,000              BB/Baa3    Xerox Capital Trust I, 8.0%, 2/1/27                        $  11,606,567
                                                                                                     -------------
                                          Total Commercial & Professional Services                   $  24,067,515
------------------------------------------------------------------------------------------------------------------
                                          TRANSPORTATION -- 2.2%
                                          Air Freight & Logistics -- 1.2%
EURO      272,000            CCC-/Caa3    CEVA Group Plc, 10.0%, 12/1/16 (144A)                      $     309,158
        3,351,000             CCC/Caa1    CEVA Group Plc, 11.5%, 4/1/18 (144A)                           3,449,893
          720,000             CCC/Caa1    CEVA Group Plc, 11.625%, 10/1/16 (144A)                          768,600
                                                                                                     -------------
                                                                                                     $   4,527,651
------------------------------------------------------------------------------------------------------------------
                                          Airlines -- 0.9%
          965,000              BB-/Ba2    Delta Airlines, Inc., 9.5%, 9/15/14 (144A)                 $   1,014,456
        2,090,000              CCC+/B2    Delta Airlines, Inc., 12.25%, 3/15/15 (144A)                   2,228,462
                                                                                                     -------------
                                                                                                     $   3,242,918
------------------------------------------------------------------------------------------------------------------
                                          Railroads -- 0.1%
          393,000                B+/B2    Kansas City Southern de Mexico, 9.375%, 5/1/12             $     402,825
                                                                                                     -------------
                                          Total Transportation                                       $   8,173,394
------------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

16     Pioneer High Income Trust | Annual Report | 3/31/10




-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               AUTOMOBILES & COMPONENTS -- 4.2%
                               Auto Parts & Equipment -- 3.8%
1,250,000(n)      CCC+/Caa2    Allison Transmission, Inc., 11.0%, 11/1/15 (144A)          $   1,331,250
2,761,300(c)      CCC+/Caa2    Allison Transmission, Inc., 11.25%, 11/1/15 (144A)             2,944,236
4,760,000          CCC/Caa1    Stanadyne Corp., 10.0%, 8/15/14                                4,355,400
1,500,000(d)      CCC-/Caa3    Stanadyne Corp., 12.0%, 2/15/15                                1,125,000
4,235,000(n)      CCC+/Caa2    Tenneco Automotive, Inc., 8.625%, 11/15/14                     4,298,525
                                                                                          -------------
                                                                                          $  14,054,411
-------------------------------------------------------------------------------------------------------
                               Tires & Rubber -- 0.4%
1,165,000(n)          B+/B1    Goodyear Tire & Rubber Co., 10.5%, 5/15/16                 $   1,258,200
                                                                                          -------------
                               Total Automobiles & Components                             $  15,312,611
-------------------------------------------------------------------------------------------------------
                               CONSUMER DURABLES & APPAREL -- 2.6%
                               Homebuilding -- 0.8%
3,060,000             B+/B1    Meritage Homes Corp., 6.25%, 3/15/15                       $   2,937,600
-------------------------------------------------------------------------------------------------------
                               Housewares & Specialities -- 1.8%
1,435,000              B/B3    Jarden Corp., 7.5%, 5/1/17                                 $   1,454,731
3,690,000(n)          B-/B3    Yankee Acquisition Corp., 8.5%, 2/15/15                        3,800,700
1,500,000(n)      CCC+/Caa1    Yankee Acquisition Corp., 9.75%, 2/15/17                       1,548,750
                                                                                          -------------
                                                                                          $   6,804,181
                                                                                          -------------
                               Total Consumer Durables & Apparel                          $   9,741,781
-------------------------------------------------------------------------------------------------------
                               CONSUMER SERVICES -- 3.0%
                               Casinos & Gaming -- 1.6%
1,650,000(b)          NR/NR    Buffalo Thunder Development Authority,
                               9.375%, 12/15/14 (144A)                                    $     218,625
  975,000              B/B3    FireKeepers Development Authority,
                               13.875%, 5/1/15 (144A)                                         1,128,562
  630,000              B/B3    Galaxy Entertainment Finance Co., Ltd.,
                               9.875%, 12/15/12 (144A)                                          656,775
4,500,000(b)          NR/Ca    Little Traverse Bay Bands of Odawa Indians, 10.25%,
                               2/15/14 (144A)                                                 1,080,000
1,375,000(b)          NR/NR    Mashantucket Western Pequot Tribe, 8.5%,
                               11/15/15 (144A)                                                  343,750
1,585,000             B+/B2    Pokagon Gaming Authority, 10.375%,
                               6/15/14 (144A)                                                 1,664,250
  275,000            BB-/B1    Scientific Games International, Inc., 9.25%, 6/15/19             290,813
  740,000           B-/Caa1    Shingle Springs Tribal Gaming Authority, 9.375%,
                               6/15/15 (144A)                                                   614,200
                                                                                          -------------
                                                                                          $   5,996,975
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     17


Schedule of Investments | 3/31/10 (continued)



------------------------------------------------------------------------------------------------------------------
                           S&P/
Principal                  Moody's
Amount                     Ratings
USD ($)                    (unaudited)                                                               Value
------------------------------------------------------------------------------------------------------------------
                                                                                            
                                          Specialized Consumer Services -- 1.4%
        1,750,000                B-/B3    StoneMor Operating LLC/Cornerstone Family Services/
                                          Osiris Holdings, 10.25%, 12/1/17 (144A)                    $   1,806,875
        3,195,000(d)              B/B3    Visant Holding Corp., 10.25%, 12/1/13                          3,290,850
                                                                                                     -------------
                                                                                                     $   5,097,725
                                                                                                     -------------
                                          Total Consumer Services                                    $  11,094,700
------------------------------------------------------------------------------------------------------------------
                                          MEDIA -- 8.7%
                                          Advertising -- 1.5%
        2,690,000                B+/B2    MDC Partners, Inc., 11.0%, 11/1/16 (144A)                  $   2,908,562
        2,600,000              B-/Caa2    Sitel LLC/Sitel Finance Corp., 11.5%, 4/1/18 (144A)            2,619,500
                                                                                                     -------------
                                                                                                     $   5,528,062
------------------------------------------------------------------------------------------------------------------
                                          Broadcasting -- 5.4%
        1,096,054                 B/B2    CCH II LLC/CCH II Capital Corp., 13.5%, 11/30/16           $   1,318,005
          970,000                 B/B1    Hughes Network Systems LLC, 9.5%, 4/15/14                        986,975
        4,320,000                 B/B1    Hughes Network Systems LLC, 9.5%, 4/15/14                      4,438,800
        3,320,312(c)         CCC+/Caa3    Intelsat Bermuda, Ltd., 11.5%, 2/4/17                          3,403,320
        2,500,000               BB-/B3    Intelsat Corp., 9.25%, 6/15/16                                 2,618,750
        1,000,000                B+/B3    Intelsat Subsidiary Holding Co., Ltd., 8.5%, 1/15/13           1,015,000
          535,000              B-/Caa1    Telesat Canada, 11.0%, 11/1/15                                   595,188
          800,000              B-/Caa1    Telesat Canada, 12.5%, 11/1/17                                   920,000
        5,112,294(c)(n)       CCC/Caa2    Univision Communications, Inc., 9.75%,
                                          3/15/15 (144A)                                                 4,422,134
                                                                                                     -------------
                                                                                                     $  19,718,172
------------------------------------------------------------------------------------------------------------------
                                          Cable & Satelite -- 1.4%
EURO    3,750,000                B+/B2    Kabel Deutschland GMBH, 10.75%, 7/1/14                     $   5,327,858
------------------------------------------------------------------------------------------------------------------
                                          Publishing -- 0.4%
        1,400,000            CCC+/Caa2    TL Acquisitions, Inc., 10.5%, 1/15/15 (144A)               $   1,344,000
                                                                                                     -------------
                                          Total Media                                                $  31,918,092
------------------------------------------------------------------------------------------------------------------
                                          RETAILING -- 3.8%
                                          Automotive Retailing -- 1.0%
        3,475,000              B-/Caa1    Sonic Automotive, Inc., 8.625%, 8/15/13                    $   3,574,906
------------------------------------------------------------------------------------------------------------------
                                          Distributors -- 0.1%
          475,000(n)             B-/B3    Minerva Overseas II, Ltd., 10.875%,
                                          11/15/19 (144A)                                            $     512,406
------------------------------------------------------------------------------------------------------------------
                                          Internet Retailing -- 1.3%
        4,340,000              BB-/Ba3    Ticketmaster Entertainment, Inc., 10.75%, 8/1/16           $   4,839,100
------------------------------------------------------------------------------------------------------------------
                                          Specialty Stores -- 1.4%
        4,615,000(n)           B-/Caa1    Sally Holdings LLC, 10.5%, 11/15/16                        $   5,030,350
                                                                                                     -------------
                                          Total Retailing                                            $  13,956,762
------------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

18     Pioneer High Income Trust | Annual Report | 3/31/10




-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               FOOD, BEVERAGE & TOBACCO -- 4.2%
                               Brewers -- 1.8%
5,885,000         BBB+/Baa1    Cia Brasileira de Bebida, 10.5%, 12/15/11                  $   6,753,037
-------------------------------------------------------------------------------------------------------
                               Packaged Foods & Meats -- 1.4%
  775,000             B-/B1    Bertin, Ltd., 10.25%, 10/5/16 (144A)                       $     863,350
1,500,000             B-/B3    FAGE Dairy Industry SA/FAGE USA Dairy Industry, Inc.,
                               9.875%, 2/1/20 (144A)                                          1,398,644
  500,000             B+/B1    Marfrig Overseas, Ltd., 9.625%, 11/16/16 (144A)                  527,500
2,410,000             B-/B3    Minerva Overseas, Ltd., 9.5%, 2/1/17 (144A)                    2,482,300
                                                                                          -------------
                                                                                          $   5,271,794
-------------------------------------------------------------------------------------------------------
                               Tobacco -- 1.0%
3,450,000             B+/B2    Alliance One International, Inc., 10.0%,
                               7/15/16 (144A)                                             $   3,605,250
                                                                                          -------------
                               Total Food, Beverage & Tobacco                             $  15,630,081
-------------------------------------------------------------------------------------------------------
                               HOUSEHOLD & PERSONAL PRODUCTS -- 0.3%
                               Personal Products -- 0.3%
1,050,000             B-/B3    Revlon Consumer Products Corp., 9.75%,
                               11/15/15 (144A)                                            $   1,084,125
                                                                                          -------------
                               Total Household & Personal Products                        $   1,084,125
-------------------------------------------------------------------------------------------------------
                               HEALTH CARE EQUIPMENT & SERVICES -- 6.3%
                               Health Care Equipment & Services -- 0.8%
2,875,000         CCC+/Caa2    Accellent, Inc., 10.5%, 12/1/13                            $   2,918,125
-------------------------------------------------------------------------------------------------------
                               Health Care Facilities -- 2.1%
  535,000           B-/Caa1    HCA, Inc., 6.25%, 2/15/13                                  $     530,988
3,308,147(c)         BB-/B2    HCA, Inc., 9.625%, 11/15/16                                    3,543,852
  110,000            BB-/B2    HCA, Inc., 9.875%, 2/15/17 (144A)                                119,900
3,725,000         CCC+/Caa1    Surgical Care Affiliates, Inc., 10.0%, 7/15/17 (144A)          3,706,375
                                                                                          -------------
                                                                                          $   7,901,115
-------------------------------------------------------------------------------------------------------
                               Health Care Services -- 0.5%
1,105,000            B+/Ba2    AMR HoldCo, 10.0%, 2/15/15                                 $   1,160,941
  601,000             B-/B3    BioScrip, Inc., 10.25%, 10/1/15 (144A)                           611,518
                                                                                          -------------
                                                                                          $   1,772,459
-------------------------------------------------------------------------------------------------------
                               Health Care Supplies -- 1.7%
1,000,000            B/Caa1    Bausch & Lomb, Inc., 9.875%, 11/1/15                       $   1,057,500
4,085,000(c)          B-/B3    Biomet, Inc., 10.375%, 10/15/17                                4,483,287
  615,000             B-/B3    Inverness Medical Innovations, Inc., 9.0%, 5/15/16               627,300
                                                                                          -------------
                                                                                          $   6,168,087
-------------------------------------------------------------------------------------------------------
                               Managed Health Care -- 1.2%
4,400,000           B-/Caa1    Multiplan, Inc., 10.375%, 4/15/16 (144A)                   $   4,532,000
                                                                                          -------------
                               Total Health Care Equipment & Services                     $  23,291,786
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     19


Schedule of Investments | 3/31/10 (continued)



----------------------------------------------------------------------------------------------------------
                   S&P/
Principal          Moody's
Amount             Ratings
USD ($)            (unaudited)                                                               Value
----------------------------------------------------------------------------------------------------------
                                                                                    
                                  PHARMACEUTICALS & BIOTECHNOLOGY & LIFE SCIENCES -- 1.7%
                                  Life Sciences Tools & Services -- 0.5%
  915,000(c)            B/Caa1    Catalent Pharma Solutions, Inc., 9.5%, 4/15/15             $     898,988
  925,000                B+/B3    PharmaNet Development Group, Inc., 10.875%,
                                  4/15/17 (144A)                                                   925,000
                                                                                             -------------
                                                                                             $   1,823,988
----------------------------------------------------------------------------------------------------------
                                  Pharmaceuticals -- 1.2%
1,050,000                 B/B2    Phibro Animal Health Corp., 10.0%, 8/1/13 (144A)           $   1,090,688
3,070,000            CCC+/Caa1    Phibro Animal Health Corp., 13.0%, 8/1/14 (144A)               3,185,125
                                                                                             -------------
                                                                                             $   4,275,813
                                                                                             -------------
                                  Total Pharmaceuticals & Biotechnology
                                  & Life Sciences                                            $   6,099,801
----------------------------------------------------------------------------------------------------------
                                  BANKS -- 1.2%
                                  Diversified Banks -- 0.1%
  400,000(a)            NR/Ba2    Banco Macro SA, 10.75%, 6/7/12                             $     283,500
----------------------------------------------------------------------------------------------------------
                                  Regional Banks -- 1.1%
1,225,000(a)(f)       BBB/Baa3    PNC Financial Services Group, Inc., 8.25%                  $   1,268,262
1,790,000(a)         BBB+/Baa1    State Street Capital Trust III, 8.25%, 3/15/42                 1,852,668
  750,000(a)(f)         A-/Ba1    Wells Fargo Capital XV, 9.75%                                    840,000
                                                                                             -------------
                                                                                             $   3,960,930
                                                                                             -------------
                                  Total Banks                                                $   4,244,430
----------------------------------------------------------------------------------------------------------
                                  DIVERSIFIED FINANCIALS -- 4.7%
                                  Asset Management & Custody Banks -- 0.4%
  575,000(a)          BB+/Baa3    Janus Capital Group, Inc., 6.5%, 6/15/12                   $     594,748
  975,000(a)          BB+/Baa3    Janus Capital Group, Inc., 6.95%, 6/15/17                        969,375
                                                                                             -------------
                                                                                             $   1,564,123
----------------------------------------------------------------------------------------------------------
                                  Consumer Finance -- 0.5%
1,750,000                B-/B1    Ford Motor Credit Co., LLC, 7.875%, 6/15/10                $   1,766,275
----------------------------------------------------------------------------------------------------------
                                  Investment Banking & Brokerage -- 0.4%
  300,000                 B/NR    Cemex Finance LLC, 9.5%, 12/14/16 (144A)                   $     310,500
1,325,000(a)(f)       BBB/Baa2    Goldman Sachs Capital II, 5.793%                               1,122,937
                                                                                             -------------
                                                                                             $   1,433,437
----------------------------------------------------------------------------------------------------------
                                  Other Diversified Financial Services -- 0.1%
  250,000(a)            BB-/NR    Ibis Re, Ltd., 10.507%, 5/10/12 (144A)                     $     273,400
----------------------------------------------------------------------------------------------------------
                                  Specialized Finance -- 3.3%
2,830,000              B-/Caa1    ACE Cash Express, Inc., 10.25%, 10/1/14 (144A)             $   2,327,675
  500,000              BB/Baa3    Capital One Capital V, 10.25%, 8/15/39                           592,343
  300,000(a)             B-/NR    Montana Re, Ltd., 13.502%, 12/7/12 (144A)                        303,570
  695,000                B+/B2    National Money Mart Co., 10.375%,
                                  12/15/16 (144A)                                                  735,831


The accompanying notes are an integral part of these financial statements.

20     Pioneer High Income Trust | Annual Report | 3/31/10




----------------------------------------------------------------------------------------------------------------
                         S&P/
Principal                Moody's
Amount                   Ratings
USD ($)                  (unaudited)                                                               Value
----------------------------------------------------------------------------------------------------------------
                                                                                          
                                        Specialized Finance -- (continued)
        9,000,000          CCC+/Caa1    NCO Group, Inc., 11.875%, 11/15/14                         $   8,235,000
                                                                                                   -------------
                                                                                                   $  12,194,419
                                                                                                   -------------
                                        Total Diversified Financials                               $  17,231,654
----------------------------------------------------------------------------------------------------------------
                                        INSURANCE -- 6.5%
                                        Insurance Brokers -- 2.8%
        3,305,000           CCC/Caa1    Alliant Holdings I, Inc., 11.0%, 5/1/15 (144A)             $   3,420,675
          100,000            CCC+/B3    HUB International Holdings, Inc., 9.0%,
                                        12/15/14 (144A)                                                   97,000
        4,455,000          CCC+/Caa1    HUB International Holdings, Inc., 10.25%,
                                        6/15/15 (144A)                                                 4,265,662
        1,249,000(a)          CCC/B3    U.S.I. Holdings Corp., 4.125%, 11/15/14 (144A)                 1,064,773
        1,610,000(n)        CCC/Caa1    U.S.I. Holdings Corp., 9.75%, 5/15/15 (144A)                   1,521,450
                                                                                                   -------------
                                                                                                   $  10,369,560
----------------------------------------------------------------------------------------------------------------
                                        Multi-Line Insurance -- 1.3%
        3,075,000(a)         BB/Baa3    Liberty Mutual Group, Inc., 10.75%, 6/15/58 (144A)         $   3,444,000
        1,100,000           BBB/Baa2    MetLife, Inc., 10.75%, 8/1/39                                  1,417,847
                                                                                                   -------------
                                                                                                   $   4,861,847
----------------------------------------------------------------------------------------------------------------
                                        Property & Casualty Insurance -- 1.4%
        5,300,000          BBB-/Baa3    Allmerica Financial Corp., 7.625%, 10/15/25                $   5,087,263
----------------------------------------------------------------------------------------------------------------
                                        Reinsurance -- 1.0%
EURO      275,000(a)           B-/NR    Atlas Reinsurance Plc, 10.95%, 1/10/11 (144A)              $     376,756
          375,000(a)          BB+/NR    Blue Fin, Ltd., 4.65%, 4/10/12 (144A)                            352,388
          250,000(a)          BB-/NR    Mystic Re II, Ltd., 10.252%, 6/7/11 (144A)                       254,575
          250,000(a)            B/NR    Residential Reinsurance 2007, Ltd., 10.502%,
                                        6/7/10 (144A)                                                    252,625
          650,000(a)          BB-/NR    Residential Reinsurance 2008, Ltd., 7.002%,
                                        6/6/11 (144A)                                                    654,810
          850,000(a)           B-/NR    Residential Reinsurance 2008, Ltd., 11.752%,
                                        6/6/11 (144A)                                                    852,125
          500,000(a)           NR/NR    Successor II, Ltd., 25.252%, 4/6/10 (144A)                       500,200
          250,000              B-/NR    Successor X, Ltd., 0.0%, 12/9/10 (144A)                          227,100
                                                                                                   -------------
                                                                                                   $   3,470,579
                                                                                                   -------------
                                        Total Insurance                                            $  23,789,249
----------------------------------------------------------------------------------------------------------------
                                        REAL ESTATE -- 1.3%
                                        Real Estate Operating Companies -- 1.3%
          172,585(a)           B-/NR    Alto Palermo SA, 11.0%, 6/11/12 (144A)                     $      94,706
        5,000,000              B-/B3    Forest City Enterprises, Inc., 7.625%, 6/1/15                  4,650,000
                                                                                                   -------------
                                        Total Real Estate                                          $   4,744,706
----------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     21


Schedule of Investments | 3/31/10 (continued)



-----------------------------------------------------------------------------------------------------------
                    S&P/
Principal           Moody's
Amount              Ratings
USD ($)             (unaudited)                                                               Value
-----------------------------------------------------------------------------------------------------------
                                                                                     
                                   SOFTWARE & SERVICES -- 4.0%
                                   Application Software -- 0.5%
1,870,000             CCC+/Caa2    Vangent, Inc., 9.625%, 2/15/15                             $   1,739,100
-----------------------------------------------------------------------------------------------------------
                                   Data Processing & Outsourced Services -- 1.2%
4,965,000               B-/Caa1    First Data Corp., 9.875%, 9/24/15                          $   4,282,312
-----------------------------------------------------------------------------------------------------------
                                   Internet Software & Services -- 0.9%
2,892,000                 B-/B2    Terremark Worldwide, Inc., 12.0%, 6/15/17 (144A)           $   3,325,800
-----------------------------------------------------------------------------------------------------------
                                   IT Consulting & Other Services -- 0.7%
2,845,000              CCC/Caa1    Activant Solutions, Inc., 9.5%, 5/1/16                     $   2,731,200
-----------------------------------------------------------------------------------------------------------
                                   Systems Software -- 0.7%
3,447,000(c)(g)           NR/NR    Pegasus Solutions, Inc., 13.0%, 4/15/14 (144A)             $   2,585,250
                                                                                              -------------
                                   Total Software & Services                                  $  14,663,662
-----------------------------------------------------------------------------------------------------------
                                   TECHNOLOGY HARDWARE & EQUIPMENT -- 0.6%
                                   Computer Storage & Peripherals -- 0.2%
  600,000               BB+/Ba1    Seagate Technology International, 10.0%,
                                   5/1/14 (144A)                                              $     679,500
-----------------------------------------------------------------------------------------------------------
                                   Electronic Equipment & Instruments -- 0.4%
1,550,000                  B/B1    Da-Lite Screen Co, Inc., 12.5%, 4/1/15 (144A)              $   1,550,000
                                                                                              -------------
                                   Total Technology Hardware & Equipment                      $   2,229,500
-----------------------------------------------------------------------------------------------------------
                                   TELECOMMUNICATION SERVICES -- 7.5%
                                   Alternative Carriers -- 0.7%
2,210,000                 B-/B2    Global Crossings, Ltd., 12.0%, 9/15/15 (144A)              $   2,453,100
-----------------------------------------------------------------------------------------------------------
                                   Integrated Telecommunication Services -- 3.3%
4,295,000               CCC+/B3    Broadview Networks Holdings, Inc.,
                                   11.375%, 9/1/12                                            $   4,176,887
3,000,000                BB-/B2    GCI, Inc., 7.25%, 2/15/14                                      3,003,750
1,000,000(n)               B/B1    PAETEC Holding Corp., 8.875%, 6/30/17                          1,027,500
3,865,000(n)          CCC+/Caa1    PAETEC Holding Corp., 9.5%, 7/15/15                            3,913,312
                                                                                              -------------
                                                                                              $  12,121,449
-----------------------------------------------------------------------------------------------------------
                                   Wireless Telecommunication Services -- 3.5%
6,400,000(n)              B-/B3    Cricket Communications, Inc., 9.375%, 11/1/14              $   6,512,000
2,500,000(n)          CCC+/Caa2    Intelsat Jackson Holdings, Ltd., 11.5%, 6/15/16                2,687,500
  540,000                  B/B2    MetroPCS Wireless, Inc., 9.25%, 11/1/14                          549,450
3,020,000                 B-/B2    True Move Co., Ltd., 10.75%, 12/16/13 (144A)                   3,152,125
                                                                                              -------------
                                                                                              $  12,901,075
                                                                                              -------------
                                   Total Telecommunication Services                           $  27,475,624
-----------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

22     Pioneer High Income Trust | Annual Report | 3/31/10




---------------------------------------------------------------------------------------------------------------
                        S&P/
Principal               Moody's
Amount                  Ratings
USD ($)                 (unaudited)                                                               Value
---------------------------------------------------------------------------------------------------------------
                                                                                         
                                       UTILITIES -- 2.1%
                                       Electric Utilities -- 0.9%
          885,000(n)        B+/Caa3    Energy Future Holdings Corp., 10.0%,
                                       1/15/20 (144A)                                             $     922,613
        3,095,000(n)       CCC/Caa2    Texas Competitive Electric Holdings Co. LLC,
                                       10.25%, 11/1/15                                                2,151,025
                                                                                                  -------------
                                                                                                  $   3,073,638
---------------------------------------------------------------------------------------------------------------
                                       Independent Power Producers & Energy Traders -- 0.9%
        1,800,000           BB-/Ba3    Intergen NV, 9.0%, 6/30/17 (144A)                          $   1,854,000
        1,500,000             NR/B2    Star Energy Geothermal (Wayang Windu), Ltd.,
                                       11.5%, 2/12/15 (144A)                                          1,581,358
                                                                                                  -------------
                                                                                                  $   3,435,358
---------------------------------------------------------------------------------------------------------------
                                       Multi-Utilities -- 0.3%
        1,000,000           BB-/Ba2    PNM Resources, Inc., 9.25%, 5/15/15                        $   1,063,750
                                                                                                  -------------
                                       Total Utilities                                            $   7,572,746
---------------------------------------------------------------------------------------------------------------
                                       TOTAL CORPORATE BONDS & NOTES
                                       (Cost $388,234,281)                                        $ 402,983,142
---------------------------------------------------------------------------------------------------------------
                                       CONVERTIBLE BONDS & NOTES -- 7.6% of Net Assets
                                       ENERGY -- 2.1%
                                       Coal & Consumable Fuels -- 0.5%
        1,905,000            BB-/NR    Massey Energy Co., 3.25%, 8/1/15                           $   1,847,850
---------------------------------------------------------------------------------------------------------------
                                       Oil & Gas Drilling -- 1.2%
        2,265,000(d)          NR/NR    Hercules Offshore, Inc., 3.375%, 6/1/38 (144A)             $   1,800,675
        1,600,000         BBB+/Baa2    Transocean, Ltd., 1.5%, 12/15/37                               1,562,000
        1,175,000         BBB+/Baa2    Transocean, Ltd., 1.625%, 12/15/37                             1,170,594
                                                                                                  -------------
                                                                                                  $   4,533,269
---------------------------------------------------------------------------------------------------------------
                                       Oil & Gas Exploration & Production -- 0.4%
          225,000             NR/NR    Carrizo Oil & Gas, Inc., 4.375%, 6/1/28                    $     199,125
        1,340,000            BB/Ba3    Chesapeake Energy Corp., 2.5%, 5/15/37                         1,098,800
                                                                                                  -------------
                                                                                                  $   1,297,925
                                                                                                  -------------
                                       Total Energy                                               $   7,679,044
---------------------------------------------------------------------------------------------------------------
                                       MATERIALS -- 0.8%
                                       Diversified Chemicals -- 0.8%
            4,000(e)         BB-/NR    Hercules, Inc., 6.5%, 6/30/29                              $   2,800,000
                                                                                                  -------------
                                       Total Materials                                            $   2,800,000
---------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     23


Schedule of Investments | 3/31/10 (continued)



-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               CAPITAL GOODS -- 0.3%
                               Electrical Components & Equipment -- 0.3%
  500,000             NR/NR    JA Solar Holdings Co., Ltd., 4.5%, 5/15/13                 $     416,250
  600,000             NR/NR    Suntech Power Holdings Co., Ltd., 3.0%, 3/15/13                  511,500
                                                                                          -------------
                               Total Capital Goods                                        $     927,750
-------------------------------------------------------------------------------------------------------
                               TRANSPORTATION -- 0.8%
                               Marine -- 0.8%
3,330,000         CCC+/Caa2    Horizon Lines, Inc., 4.25%, 8/15/12                        $   2,917,912
                                                                                          -------------
                               Total Transportation                                       $   2,917,912
-------------------------------------------------------------------------------------------------------
                               MEDIA -- 0.4%
                               Movies & Entertainment -- 0.4%
1,832,000           CCC+/NR    Live Nation, Inc., 2.875%, 7/15/27                         $   1,607,580
                                                                                          -------------
                               Total Media                                                $   1,607,580
-------------------------------------------------------------------------------------------------------
                               HEALTH CARE EQUIPMENT & SERVICES -- 1.7%
                               Health Equipment & Services -- 0.7%
2,837,000(d)         BB-/NR    Hologic, Inc., 2.0%, 12/15/37                              $   2,539,115
-------------------------------------------------------------------------------------------------------
                               Health Care Facilities -- 0.7%
1,985,000              B/B1    LifePoint Hospitals, Inc., 3.25%, 8/15/25                  $   1,932,894
  780,000              B/NR    LifePoint Hospitals, Inc., 3.5%, 5/15/14                         778,050
                                                                                          -------------
                                                                                          $   2,710,944
-------------------------------------------------------------------------------------------------------
                               Health Care Services -- 0.3%
1,210,000             B+/B3    Omnicare, Inc., 3.25%, 12/15/35                            $   1,023,962
                                                                                          -------------
                               Total Health Care Equipment & Services                     $   6,274,021
-------------------------------------------------------------------------------------------------------
                               TECHNOLOGY HARDWARE & EQUIPMENT -- 0.6%
                               Communications Equipment -- 0.2%
1,080,000(b)          NR/NR    Nortel Networks Corp., 2.125%, 4/15/14                     $     812,700
-------------------------------------------------------------------------------------------------------
                               Electronic Equipment & Instruments -- 0.4%
1,514,000             B+/NR    L-1 Identity Solutions, Inc., 3.75%, 5/15/27               $   1,445,870
                                                                                          -------------
                               Total Technology Hardware & Equipment                      $   2,258,570
-------------------------------------------------------------------------------------------------------
                               TELECOMMUNICATION SERVICES -- 0.9%
                               Alternative Carriers -- 0.9%
3,025,000             B-/B3    Time Warner Telecom, Inc., 2.375%, 4/1/26                  $   3,444,719
                                                                                          -------------
                               Total Telecommunication Services                           $   3,444,719
-------------------------------------------------------------------------------------------------------
                               TOTAL CONVERTIBLE BONDS & NOTES
                               (Cost $21,038,680)                                         $  27,909,596
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

24     Pioneer High Income Trust | Annual Report | 3/31/10




------------------------------------------------------------------------------------------------------------------
                           S&P/
Principal                  Moody's
Amount                     Ratings
USD ($)                    (unaudited)                                                               Value
------------------------------------------------------------------------------------------------------------------
                                                                                            
                                          MUNICIPAL BONDS -- 5.6% of Net Assets
                                          Indiana -- 1.6%
        1,650,000             BBB/Baa3    East Chicago Industrial Pollution Control Revenue,
                                          7.0%, 1/1/14                                               $   1,581,987
        4,250,000               BBB/NR    Indiana Development Finance Authority Revenue,
                                          5.75%, 10/1/11                                                 4,342,140
                                                                                                     -------------
                                                                                                     $   5,924,127
------------------------------------------------------------------------------------------------------------------
                                          Michigan -- 0.0%
        3,000,000(g)(h)          NR/NR    Wayne Charter Escrow, 0.0%, 12/1/15                        $          --
------------------------------------------------------------------------------------------------------------------
                                          New Jersey -- 1.2%
        4,525,000                 B/B3    New Jersey Economic Development Authority Revenue,
                                          7.0%, 11/15/30                                             $   4,504,954
------------------------------------------------------------------------------------------------------------------
                                          New York -- 0.9%
        3,475,000               BB-/B1    New York City Industrial Development Agency Revenue,
                                          7.625%, 12/1/32                                            $   3,415,682
------------------------------------------------------------------------------------------------------------------
                                          North Carolina -- 1.9%
        6,300,000                NR/NR    Charlotte Special Facilities Refunding Revenue,
                                          5.6%, 7/1/27                                               $   4,903,038
        2,000,000                NR/NR    Charlotte Special Facilities Refunding Revenue,
                                          7.75%, 2/1/28                                                  1,861,980
                                                                                                     -------------
                                                                                                     $   6,765,018
------------------------------------------------------------------------------------------------------------------
                                          TOTAL MUNICIPAL BONDS
                                          (Cost $16,676,863)                                         $  20,609,781
------------------------------------------------------------------------------------------------------------------
                                          MUNICIPAL COLLATERALIZED DEBT OBLIGATION -- 0.7%
                                          of Net Assets
        3,300,000(a)(i)          NR/NR    Non-Profit Preferred Funding Trust I, 12.0%,
                                          9/15/37 (144A)                                             $   2,428,140
------------------------------------------------------------------------------------------------------------------
                                          TOTAL MUNICIPAL COLLATERALIZED DEBT
                                          OBLIGATION
                                          (Cost $3,293,400)                                          $   2,428,140
------------------------------------------------------------------------------------------------------------------
                                          SOVEREIGN DEBT OBLIGATIONS -- 1.9% of Net Assets
                                          Argentina -- 0.3%
        1,200,000                B-/B2    City of Buenos Aires, 12.5%, 4/6/15 (144A)                 $   1,248,000
------------------------------------------------------------------------------------------------------------------
                                          Brazil -- 0.9%
ITL 4,600,000,000(d)         BBB-/Baa2    Banco Nacional de Desenvolimento Bndes,
                                          8.0%, 4/28/10                                              $   3,230,635
------------------------------------------------------------------------------------------------------------------
                                          Russia -- 0.7%
        2,134,400(d)          BBB/Baa1    Russia Government International Bond,
                                          7.5%, 3/31/30                                              $   2,460,109
------------------------------------------------------------------------------------------------------------------
                                          TOTAL SOVEREIGN DEBT OBLIGATIONS
                                          (Cost $5,495,854)                                          $   6,938,744
------------------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     25


Schedule of Investments | 3/31/10 (continued)



-------------------------------------------------------------------------------------------------------
                S&P/
Principal       Moody's
Amount          Ratings
USD ($)         (unaudited)                                                               Value
-------------------------------------------------------------------------------------------------------
                                                                                 
                               FLOATING RATE LOAN INTERESTS -- 2.0% of Net Assets (j)
                               ENERGY -- 0.1%
                               Oil & Gas Exploration & Production -- 0.1%
  483,383              B/B3    Venoco, Inc., Second Lien Term Loan,
                               4.25%, 5/7/14                                              $     458,367
                                                                                          -------------
                               Total Energy                                               $     458,367
-------------------------------------------------------------------------------------------------------
                               MATERIALS -- 0.6%
                               Diversified Chemicals -- 0.2%
  418,000              B/B2    Ineos US Finance LLC, Facility Term Loan B-2,
                               7.5%, 12/16/13                                             $     410,816
  418,000              B/B2    Ineos US Finance LLC, Facility Term Loan C-2,
                               8.0%, 12/16/14                                                   410,816
                                                                                          -------------
                                                                                          $     821,632
-------------------------------------------------------------------------------------------------------
                               Steel -- 0.4%
1,561,714(g)           B/B3    Niagara Corp., Term Loan, 8.5%, 6/29/14                    $   1,546,097
                                                                                          -------------
                               Total Materials                                            $   2,367,729
-------------------------------------------------------------------------------------------------------
                               COMMERCIAL & PROFESSIONAL SERVICES -- 0.0%
                               Diversified Support Services -- 0.0%
  119,378            BB-/B2    Rental Service Corp., Second Lien Initial Term Loan,
                               3.76%, 11/30/13                                            $     115,759
                                                                                          -------------
                               Total Commercial & Professional Services                   $     115,759
-------------------------------------------------------------------------------------------------------
                               AUTOMOBILES & COMPONENTS -- 0.1%
                               Auto Parts & Equipment -- 0.1%
  360,000             B+/B3    HHI Group Holdings, LLC, Term Loan,
                               10.5%, 4/30/15                                             $     362,138
                                                                                          -------------
                               Total Automobiles & Components                             $     362,138
-------------------------------------------------------------------------------------------------------
                               CONSUMER SERVICES -- 0.2%
                               Casinos & Gaming -- 0.2%
2,330,000(b)       BB-/Caa1    Gateway Casinos & Entertainment, Inc., Advance
                               Second Lien Term Loan, 5.751%, 3/31/15                     $     589,781
                                                                                          -------------
                               Total Consumer Services                                    $     589,781
-------------------------------------------------------------------------------------------------------
                               HOUSEHOLD & PERSONAL PRODUCTS -- 0.1%
                               Household Products -- 0.1%
  179,811           CCC+/B2    Spectrum Brands, Inc., Dollar Term Loan B,
                               8.0% -- 8.75%, 6/30/12                                     $     179,970
    9,272           CCC+/B2    Spectrum Brands, Inc., Letter of Credit Loan,
                               1.5%, 6/30/12                                                      9,280
                                                                                          -------------
                               Total Household & Personal Products                        $     189,250
-------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

26     Pioneer High Income Trust | Annual Report | 3/31/10




--------------------------------------------------------------------------------------------------------
                 S&P/
Principal        Moody's
Amount           Ratings
USD ($)          (unaudited)                                                               Value
--------------------------------------------------------------------------------------------------------
                                                                                  
                                DIVERSIFIED FINANCIALS -- 0.0%
                                Consumer Finance -- 0.0%
    7,080             BB-/NR    Dollar Financial Corp., Canadian Borrower Term Loan,
                                7.0%, 12/31/14                                             $       6,880
    5,206             BB-/NR    Dollar Financial Corp., Delayed Draw Term Loan,
                                7.0%, 12/31/14                                                     5,058
                                                                                           -------------
                                Total Diversified Financials                               $      11,938
--------------------------------------------------------------------------------------------------------
                                INSURANCE -- 0.6%
                                Multi-Line Insurance -- 0.6%
  382,922              B-/B2    AmWins Group, Inc., Initial Term Loan
                                2.76% - 2.78%, 6/8/13                                      $     355,639
2,250,000              B-/B2    AmWins Group, Inc., Second Lien Initial Term Loan,
                                5.78%, 6/9/14                                                  1,856,250
                                                                                           -------------
                                Total Insurance                                            $   2,211,889
--------------------------------------------------------------------------------------------------------
                                UTILITIES -- 0.3%
                                Electric Utilities -- 0.3%
  189,050              B+/B2    Texas Competitive Electric Holdings Co., LLC, Delayed
                                Draw Term Loan, 3.729% - 3.79%, 10/10/14                   $     152,251
1,190,840             B-/Ba3    Texas Competitive Electric Holdings Co., LLC, Initial
                                Tranche B-2 Term Loan 3.729% - 3.79%, 10/10/14                   980,872
                                                                                           -------------
                                Total Utilities                                            $   1,133,123
--------------------------------------------------------------------------------------------------------
                                TOTAL FLOATING RATE LOAN INTERESTS
                                (Cost $9,407,692)                                          $   7,439,974
--------------------------------------------------------------------------------------------------------
                                FIXED RATE LOAN INTERESTS -- 0.3% of Net Assets
                                SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.3%
                                Semiconductor Equipment -- 0.3%
1,023,266(n)           NR/NR    Freescale Semiconductor, Inc., Incremental Term
                                Loan, 12.5%, 12/15/14                                      $   1,056,522
--------------------------------------------------------------------------------------------------------
                                TOTAL FIXED RATE LOAN INTERESTS
                                (Cost $2,434,597)                                          $   1,056,522
--------------------------------------------------------------------------------------------------------
Shares
--------------------------------------------------------------------------------------------------------
                                COMMON STOCKS -- 2.9% of Net Assets
                                ENERGY -- 0.1%
                                Oil & Gas Equipment & Services -- 0.1%
2,272,024(h)                    Skeie Drilling & Production ASA                            $     313,874
                                                                                           -------------
                                Total Energy                                               $     313,874
--------------------------------------------------------------------------------------------------------
                                MATERIALS -- 0.7%
                                Commodity Chemicals -- 0.6%
  114,503(h)                    Georgia Gulf Corp.                                         $   2,117,161
                                                                                           -------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     27


Schedule of Investments | 3/31/10 (continued)



------------------------------------------------------------------------------------------------------
Shares                                                                                           Value
------------------------------------------------------------------------------------------------------
                                                                                   
                              Steel -- 0.1%
           26,215(g)          Niagara Corp.                                              $     203,428
                                                                         -----           --------
                              Total Materials                                            $   2,320,589
------------------------------------------------------------------------------------------------------
                              CAPITAL GOODS -- 0.1%
                              Building Products -- 0.1%
              894(g)(h)(i)    Panolam Holdings Co.                                       $     438,060
                                                                                         -------------
                              Total Capital Goods                                        $     438,060
------------------------------------------------------------------------------------------------------
                              TRANSPORTATION -- 0.4%
                              Airlines -- 0.4%
           96,819(h)(n)       Delta Airlines, Inc.                                       $   1,412,589
                                                                                         -------------
                              Total Transportation                                       $   1,412,589
------------------------------------------------------------------------------------------------------
                              AUTOMOBILES & COMPONENTS -- 1.2%
                              Auto Parts & Equipment -- 1.2%
           55,194(h)          Lear Corp.                                                 $   4,379,644
                                                                                         -------------
                              Total Automobiles & Components                             $   4,379,644
------------------------------------------------------------------------------------------------------
                              MEDIA -- 0.1%
                              Cable & Satellite -- 0.1%
           17,042(h)          Charter Communications, Inc.                               $     587,949
                                                                                         -------------
                              Total Media                                                $     587,949
------------------------------------------------------------------------------------------------------
                              PHARMACEUTICALS & BIOTECHNOLOGY & LIFE SCIENCES -- 0.3%
                              Pharmaceuticals -- 0.3%
           17,818             Teva Pharmaceutical Industries, Ltd. (A.D.R.)              $   1,123,959
                                                                                         -------------
                              Total Pharmaceuticals & Biotechnology
                              & Life Sciences                                            $   1,123,959
------------------------------------------------------------------------------------------------------
                              SOFTWARE & SERVICES -- 0.0%
                              Systems Software -- 0.0%
           10,942(g)(h)       Perseus Holding Corp.                                      $          --
                                                                                         -------------
                              Total Software & Services                                  $          --
------------------------------------------------------------------------------------------------------
                              TOTAL COMMON STOCKS
                              (Cost $8,179,292)                                          $  10,576,664
------------------------------------------------------------------------------------------------------
                              CONVERTIBLE PREFERRED STOCK -- 0.9% of Net Assets
                              MATERIALS -- 0.2%
                              Diversified Metals & Mining -- 0.2%
            5,100             Freeport-McMoRan Copper & Gold, Inc., 6.75%                $     591,447
                                                                                         -------------
                              Total Materials                                            $     591,447
------------------------------------------------------------------------------------------------------
                              DIVERSIFIED FINANCIALS -- 0.7%
                              Other Diversified Financial Services -- 0.7%
            2,755             Bank of America Corp., 7.25%                               $   2,686,125
                                                                                         -------------
                              Total Diversified Financials                               $   2,686,125
------------------------------------------------------------------------------------------------------
                              TOTAL CONVERTIBLE PREFERRED STOCK
                              (Cost $2,383,713)                                          $   3,277,572
------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

28     Pioneer High Income Trust | Annual Report | 3/31/10




----------------------------------------------------------------------------------------
Shares                                                                     Value
----------------------------------------------------------------------------------------
                                                                     
                PREFERRED STOCK -- 0.0% of Net Assets
                SOFTWARE & SERVICES -- 0.0%
                Systems Software -- 0.0%
    5,745(g)    Perseus Holding Corp., 14.0% (144A)                        $          --
----------------------------------------------------------------------------------------
                TOTAL PREFERRED STOCK
                (Cost $0)                                                  $          --
----------------------------------------------------------------------------------------
                RIGHTS/WARRANTS -- 0.2% of Net Assets
                ENERGY -- 0.1%
                Oil & Gas Exploration & Production -- 0.1%
2,500,000(h)    Norse Energy Corp., ASA -- CW11, Expires 7/14/11           $     362,215
                                                                           -------------
                Total Energy                                               $     362,215
----------------------------------------------------------------------------------------
                MATERIALS -- 0.1%
                Commodity Chemicals -- 0.1%
   67,842(h)    Arco Chemical Rights, Expires 4/15/10                      $     504,000
                                                                           -------------
                Total Materials                                            $     504,000
----------------------------------------------------------------------------------------
                TOTAL RIGHTS/WARRANTS
                (Cost $963,590)                                            $     866,215
----------------------------------------------------------------------------------------
Principal
Amount
USD ($)
----------------------------------------------------------------------------------------
                TEMPORARY CASH INVESTMENTS -- 10.1% of Net Assets
                SECURITIES LENDING COLLATERAL -- 10.1% (k)
                Certificates of Deposit:
  922,130       Bank of Nova Scotia, 0.2%, 6/1/10                          $     922,130
1,020,067       BBVA NY, 0.265%, 6/1/10                                        1,020,067
  310,347       BNP Paribas, 0.70%, 6/4/10                                       310,347
1,122,061       CBA Financial, 0.27%, 1/3/11                                   1,122,061
1,020,056       DnB NOR Bank ASA NY, 0.19%, 5/19/10                            1,020,056
1,020,083       Rabobank Nederland NY, 0.19%, 7/6/10                           1,020,083
1,020,056       Royal Bank of Canada, 0.23%, 1/21/11                           1,020,056
                                                                           -------------
                                                                           $   6,434,800
----------------------------------------------------------------------------------------
                Commercial Paper:
1,162,139       Bank of America, 0.85%, 5/12/10                            $   1,162,139
  714,039       BCSFUN, 0.07%, 4/1/10                                            714,039
  134,979       Caterpillar Financial Services, 0.34%, 8/20/10                   134,979
  749,688       CATFIN, 0.17%, 4/16/10                                           749,688
  509,838       CBAPP, 0.20%, 6/7/10                                             509,838
1,020,029       Char FD, 0.16%, 4/7/10                                         1,020,029
  407,917       Ciesco, 0.19%, 5/20/10                                           407,917
  923,828       CME, Inc., 0.90%, 8/6/10                                         923,828
1,019,803       FASCO, 0.19%, 5/18/10                                          1,019,803
  111,171       GE Capital Corp., 0.31%, 10/6/10                                 111,171
  110,421       GE Capital Corp., 0.35%, 10/21/10                                110,421
  306,181       GE Capital Corp., 0.43%, 8/20/10                                 306,181


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     29


Schedule of Investments | 3/31/10 (continued)



---------------------------------------------------------------------------------------------
Principal
Amount
USD ($)                                                                         Value
---------------------------------------------------------------------------------------------
                                                                          
                     Commercial Paper -- (continued)
          509,953    GE, 0.30%, 1/26/11                                         $     509,953
          219,291    HNDAF, 0.16%, 4/22/10                                            219,291
          815,917    HNDAF, 0.17%, 5/4/10                                             815,917
        1,223,849    INDFG, 0.20%, 5/3/10                                           1,223,849
          101,986    INDFG, 0.21%, 5/4/10                                             101,986
          448,813    JDCLLP, 0.15%, 4/7/10                                            448,813
          428,409    JDCLLP, 0.15%, 4/9/10                                            428,409
          113,759    John Deere Capital Corp., 0.33%, 7/16/10                         113,759
          863,307    JPMorgan Chase & Co., 0.57%, 9/24/10                             863,307
          418,017    Kithaw, 0.16%, 5/5/10                                            418,017
          611,853    Kithaw, 0.20%, 5/24/10                                           611,853
          407,941    Old LLC, 0.18%, 5/11/10                                          407,941
          795,544    PARFIN, 0.25%, 4/19/10                                           795,544
          407,957    Ranger, 0.18%, 5/3/10                                            407,957
        1,156,608    Santander, 0.30%, 7/23/10                                      1,156,608
          779,304    SRCPP, 0.17%, 4/6/11                                             779,304
          305,960    SRCPP, 0.19%, 5/6/10                                             305,960
          449,812    STRAIT, 0.17%, 4/26/10                                           449,812
          188,221    STRAIT, 0.18%, 4/1/10                                            188,221
          198,222    STRAIT, 0.18%, 5/7/10                                            198,222
          407,882    STRAIT, 0.20%, 6/2/10                                            407,882
          509,923    TB LLC, 0.19%, 5/10/10                                           509,923
          509,803    TB LLC, 0.23%, 6/9/10                                            509,803
        1,020,056    Toyota Motor Credit Corp., 0.23%, 1/10/11                      1,020,056
          156,296    US Bancorp, 0.30%, 5/28/10                                       156,296
          218,688    US Bancorp, 0.65%, 5/6/10                                        218,688
          102,088    US Bancorp, 0.66%, 6/4/10                                        102,088
          288,421    Wal Mart Stores, Inc., 0.22%, 7/1/10                             288,421
          407,913    WFC, 0.33%, 12/2/10                                              407,913
          724,416    WFC, 0.70%, 1/24/11                                              724,416
                     Commercial Paper -- (continued)
        1,019,659    WSTPAC, 0.25%, 5/27/10                                     $   1,019,659
                                                                                -------------
                                                                                $  22,979,901
---------------------------------------------------------------------------------------------
                     Tri-party Repurchase Agreements:
        1,489,281    Deutsche Bank, 0.02%, 4/1/10                               $   1,489,281
        3,060,167    RBS Securities, Inc., 0.01%, 4/1/10                            3,060,167
                                                                                -------------
                                                                                $   4,549,448
---------------------------------------------------------------------------------------------
                     Time Deposits:
        1,582,718    Societe Generale, 0.12%, 4/1/10                            $   1,582,718
---------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

30     Pioneer High Income Trust | Annual Report | 3/31/10




---------------------------------------------------------------------------------------------
Shares                                                                          Value
---------------------------------------------------------------------------------------------
                                                                          
                     Money Market Mutual Funds:
        1,632,089    Dreyfus Preferred Money Market Fund                        $   1,632,089
---------------------------------------------------------------------------------------------
                     TOTAL SECURITIES LENDING COLLATERAL                        $  37,178,956
---------------------------------------------------------------------------------------------
                     TOTAL TEMPORARY CASH INVESTMENTS
                     (Cost $37,178,956)                                         $  37,178,956
---------------------------------------------------------------------------------------------
                     TOTAL INVESTMENTS IN SECURITIES -- 146.3%
                     (Cost $512,061,160)(l)(m)                                  $ 536,891,106
---------------------------------------------------------------------------------------------
                     OTHER ASSETS AND LIABILITIES -- (5.1)%                     $ (18,797,308)
---------------------------------------------------------------------------------------------
                     PREFERRED SHARES AT REDEMPTION VALUE,
                     INCLUDING DIVIDENDS PAYABLE -- (41.2)%                     $(151,007,091)
---------------------------------------------------------------------------------------------
                     NET ASSETS APPLICABLE TO COMMON
                     SHAREOWNERS -- 100.0%                                      $ 367,086,707
=============================================================================================


NR     Security not rated by S&P or Moody's.

(144A) Security is exempt from registration under Rule 144A of the Securities
       Act of 1933. Such securities may be resold normally to qualified
       institutional buyers in a transaction exempt from registration. At March
       31, 2010, the value of these securities amounted to $161,031,662 or 43.9%
       of total net assets applicable to common shareowners.

(a)    Floating rate note. The rate shown is the coupon rate at March 31, 2010.

(b)    Security is in default and is non-income producing.

(c)    Payment-in Kind (PIK) security which may pay interest in additional
       principal amount.

(d)    Debt obligation initially issued at one coupon rate which converts to
       another coupon at a specific date. The rate shown is the rate at March
       31, 2010.

(e)    Security is priced as a unit.

(f)    Security is a perpetual bond and has no definite maturity date.

(g)    Security is fair valued using fair value methods (other than prices
       supplied by independent pricing services). (See Note 1A).

(h)    Non-income producing.

(i)    Indicates a security that has been deemed illiquid. The aggregate cost of
       illiquid securities is $3,293,400. The aggregate value of $2,866,200
       represents 0.8% of total net assets applicable to common shareowners.

(j)    Floating rate loan interests in which the Trust invests generally pay
       interest at rates that are periodically redetermined by reference to a
       base lending rate plus a premium. These base lending rates are generally
       (i) the lending rate offered by one or more major European banks, such as
       LIBOR (London InterBank Offered Rate), (ii) the prime rate offered by one
       or more major United States banks, (iii) the certificate of deposit (iv)
       other base lending rates used by commercial lenders. The interest rate
       shown is the rate accruing at March 31, 2010.

(k)    Securities lending collateral is managed by Credit Suisse AG, New York
       Branch.

The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     31


Schedule of Investments | 3/31/10 (continued)

(l)    At March 31, 2010, the net unrealized gain on investments based on cost
       for federal income tax purposes of $514,460,578 was as follows:


                                                                                
       Aggregate gross unrealized gain for all investments in which there is an
         excess of value over tax cost                                             $57,255,503
       Aggregate gross unrealized loss for all investments in which there is an
         excess of tax cost over value                                             (34,824,975)
                                                                                   -----------
       Net unrealized gain                                                         $22,430,528
                                                                                   ===========


       For financial reporting purposes net unrealized gain was $24,829,946 and
       cost of investments aggregated $512,061,160.

(m)    Distribution of investments by country of issue, as a percentage of total
       holdings, is as follows (unaudited):


                                        
       United States                             80.5%
       Canada                                     4.1
       Cayman Islands                             2.2
       Norway                                     2.1
       Bermuda                                    1.8
       Brazil                                     1.4
       United Kingdom                             1.2
       Germany                                    1.0
       Netherlands                                0.9
       Argentina                                  0.7
       Australia                                  0.6
       Italy                                      0.6
       Mexico                                     0.6
       Thailand                                   0.6
       Russia                                     0.5
       Virgin Islands                             0.4
       Indonesia                                  0.3
       Israel                                     0.2
       Luxembourg                                 0.2
       Ireland                                    0.1
       Other (individually less than 1%)           --
                                                -----
                                                100.0%
                                                =====


The accompanying notes are an integral part of these financial statements.

32     Pioneer High Income Trust | Annual Report | 3/31/10


(n)    At March 31, 2010, the following securities were out on loan:



--------------------------------------------------------------------------------
Principal
Amount                                                               Market
USD($)       Description                                             Value
--------------------------------------------------------------------------------
                                                               
2,137,000    Aleris International, Inc., 10.0%, 12/15/16             $     9,616
1,000,000    Algoma Acquisition Corp., 9.875%, 6/15/15 (144A)            920,000
1,133,000    Allison Transmission, Inc., 11.0%, 11/1/15 (144A)         1,206,645
6,163,000    Cricket Communications, Inc., 9.375%, 11/1/14             6,270,852
   40,000    Energy Future Holdings Corp., 10.0%, 1/15/20 (144A)          41,700
  152,000    Freescale Semiconductor, Inc., Incremental Term Loan,
             12.5%, 12/15/14                                             156,940
1,100,000    Goodyear Tire & Rubber Co., 10.5%, 5/15/16                1,188,000
1,230,000    Graphic Packaging International, Inc., 9.5%, 8/15/13      1,260,750
2,970,000    Hexion U.S. Finance Corp., 9.75%, 11/15/14                3,029,400
  570,000    Intelsat Jackson Holdings, Ltd., 11.5%, 6/15/16             612,750
  100,000    Minerva Overseas II, Ltd., 10.875%, 11/15/19 (144A)         107,875
   45,000    PAETEC Holding Corp., 8.875%, 6/30/17                        46,238
2,133,000    PAETEC Holding Corp., 9.5%, 7/15/15                       2,159,662
1,000,000    Park-Ohio Industries, Inc., 8.375%, 11/15/14                882,500
3,918,000    Sally Holdings LLC, 10.5%, 11/15/16                       4,270,620
1,183,000    Tenneco Automotive, Inc., 8.625%, 11/15/14                1,200,745
3,064,000    Texas Competitive Electric Holdings Co. LLC,
             10.25%, 11/1/15                                           2,129,480
  570,000    U.S. Concrete, Inc., 8.375%, 4/1/14                         336,300
  445,000    U.S.I. Holdings Corp., 9.75%, 5/15/15 (144A)                420,525
2,223,758    Univision Communications, Inc., 9.75%, 3/15/15 (144A)     1,923,551
1,795,000    Waste Services, Inc., 9.5%, 4/15/14                       1,848,850
3,651,000    Yankee Acquisition Corp., 8.5%, 2/15/15                   3,760,530
  815,000    Yankee Acquisition Corp., 9.75%, 2/15/17                    841,488




--------------------------------------------------------------------------------
Shares
--------------------------------------------------------------------------------
                                                               
 54,500      Delta Airlines, Inc.                                        795,155
--------------------------------------------------------------------------------
                                                                     $35,420,172
================================================================================


Note:  Principal amounts are denominated in U.S. dollars unless otherwise
       denoted.

EURO   Euro
ITL    Italian Lira
NOK    Norwegian Krone

Glossary of Terms:

(A.D.R.) American Depositary Receipt

Purchases and sales of securities (excluding temporary cash investments) for the
year ended March 31, 2010, aggregated $114,913,811 and $63,976,697,
respectively.

The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     33


Schedule of Investments | 3/31/10 (continued)

Various inputs are used in determining the value of the Trust's investments.
These inputs are summarized in the three broad levels listed below.

Highest priority is given to Level 1 inputs and lowest priority is given to
Level 3.

     Level 1 -- quoted prices in active markets for identical securities
     Level 2 -- other significant observable inputs (including quoted prices for
                similar securities, interest rates, prepayment speeds, credit
                risk, etc.)
     Level 3 -- significant unobservable inputs (including the Trust's own
                assumptions in determining fair value of investments)

     The following is a summary of the inputs used as of March 31, 2010, in
     valuing the Trust's investments:



-------------------------------------------------------------------------------------------------
                                        Level 1        Level 2         Level 3       Total
-------------------------------------------------------------------------------------------------
                                                                         
Asset backed securities                 $        --    $  9,594,774    $       --    $  9,594,774
Collateralized mortgage backed
securities                                       --       6,031,026            --       6,031,026
Corporate bonds & notes
(systems software)                               --              --     2,585,250       2,585,250
Corporate bonds & notes (other
industries)                                      --     400,397,892            --     400,397,892
Convertible bonds & notes                        --      27,909,596            --      27,909,596
Municipal bonds                                  --      20,609,781            --      20,609,781
Municipal collaterized debt
obligation                                       --       2,428,140            --       2,428,140
Sovereign debt obligation                        --       6,938,744            --       6,938,744
Floating rate loan interests (steel)             --              --     1,546,097       1,546,097
Floating rate loan interests (other
industries)                                      --       5,893,877            --       5,893,877
Fixed rate loan interest                         --       1,056,522            --       1,056,522
Common stock (steel)                             --              --       203,428         203,428
Common stock (building
products)                                        --              --       438,060         438,060
Common stock (other industries)           9,935,176              --            --       9,935,176
Convertible preferred stock (other
diversified financial services)                  --       2,686,125            --       2,686,125
Convertible preferred stock (other
industries)                                 591,447              --            --         591,447
Rights/Warrants (commodity
chemicals)                                       --         504,000            --         504,000
Rights/Warrants (other industries)          362,215              --            --         362,215
Temporary cash investments                       --      35,546,867            --      35,546,867
Money market mutual funds                 1,632,089              --            --       1,632,089
-------------------------------------------------------------------------------------------------
 Total                                  $12,520,927    $519,597,344    $4,772,835    $536,891,106
=================================================================================================
Other Financial Instruments*            $        --    $   (11,018)    $       --    $    (11,018)
=================================================================================================


*    Other financial instruments include foreign exchange contracts.

The accompanying notes are an integral part of these financial statements.

34     Pioneer High Income Trust | Annual Report | 3/31/10


The following is a reconciliation of assets valued using significant
unobservable inputs (level 3):



---------------------------------------------------------------------------------------------------------
                                                  Change in                        Transfer
                           Balance    Realized    unrealized         Net           in and      Balance
                           as of      gain        appreciation       purchases     out of      as of
                           3/31/09    (loss)      (depreciation)(1)  (sales)       Level 3*    3/31/10
---------------------------------------------------------------------------------------------------------
                                                                             
Corporate bonds & notes
(systems software)         $--        $--         $ (3,128,836)      $5,714,086    $--         $2,585,250
Floating rate loan
interests (steel)           --         --                   --        1,546,097     --          1,546,097
Common stock (steel)        --         --                   --          203,428     --            203,428
Common stock
(building products)         --         --                   --          438,060     --            438,060
---------------------------------------------------------------------------------------------------------
Ending balance             $--        $--         $ (3,128,836)      $7,901,671    $--         $4,772,835
=========================================================================================================


(1)  Unrealized appreciation (depreciation) on these securities is included in
     the change in unrealized gain (loss) from investments in the Statement of
     Operations.

*    Transfers are calculated beginning of period.

The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     35


Statement of Assets and Liabilities | 3/31/10


                                                                                   
ASSETS:
  Investments in securities, at value (including securities loaned of $35,420,172)
   (cost $512,061,160)                                                                $536,891,106
  Cash                                                                                   2,198,521
  Foreign currencies, at value (cost $4,659,382)                                         4,902,487
  Receivables --
   Investment securities sold                                                            3,243,184
   Paydown                                                                                  12,972
   Dividends and interest                                                               11,620,528
   Reinvestment of distributions                                                           319,323
  Prepaid expenses and other assets                                                         55,009
--------------------------------------------------------------------------------------------------
     Total assets                                                                     $559,243,130
--------------------------------------------------------------------------------------------------
LIABILITIES:
  Payables --
   Investment securities purchased                                                    $  3,554,505
   Upon return of securities loaned                                                     37,178,956
   Forward foreign currency portfolio hedge contracts -- net                                11,018
  Due to affiliates                                                                        272,431
  Accrued expenses                                                                         132,422
--------------------------------------------------------------------------------------------------
     Total liabilities                                                                $ 41,149,332
--------------------------------------------------------------------------------------------------
PREFERRED SHARES AT REDEMPTION VALUE:
  $25,000 liquidation value per share applicable to 6,040 shares,
   including dividends payable of $7,091                                              $151,007,091
--------------------------------------------------------------------------------------------------
NET ASSETS APPLICABLE TO COMMON SHAREOWNERS:
  Paid-in capital                                                                     $393,962,921
  Undistributed net investment income                                                   11,063,389
  Accumulated net realized loss on investments and foreign currency transactions       (62,950,779)
  Net unrealized gain on investments                                                    24,829,946
  Net unrealized gain on forward foreign currency contracts and other
   assets and liabilities denominated in foreign currencies                                181,230
--------------------------------------------------------------------------------------------------
     Net assets applicable to common shareowners                                      $367,086,707
==================================================================================================
NET ASSET VALUE PER SHARE:
No par value (unlimited number of shares authorized)
  Based on $367,086,707/27,737,499 common shares                                      $      13.23
==================================================================================================


The accompanying notes are an integral part of these financial statements.

36     Pioneer High Income Trust | Annual Report | 3/31/10


Statement of Operations

For the Year Ended 3/31/10


                                                                                      
INVESTMENT INCOME:
  Interest                                                                $  48,820,400
  Dividends (net of foreign taxes withheld $1,476)                              243,687
  Income from securities loaned, net                                            144,803
---------------------------------------------------------------------------------------------------------
   Total investment income                                                                   $ 49,208,890
---------------------------------------------------------------------------------------------------------
EXPENSES:
  Management fees                                                         $   2,729,932
  Administrative fees                                                           139,430
  Transfer agent fees and expenses                                               19,254
  Shareowner communications expense                                              79,510
  Auction agent fees                                                            402,677
  Custodian fees                                                                 31,185
  Registration fees                                                              25,287
  Professional fees                                                             166,337
  Printing expense                                                               51,298
  Trustees' fees                                                                 14,730
  Pricing fee                                                                    33,940
  Miscellaneous                                                                  46,393
---------------------------------------------------------------------------------------------------------
   Total expenses                                                                            $  3,739,973
   Less fees paid indirectly                                                                           (4)
---------------------------------------------------------------------------------------------------------
   Net expenses                                                                              $  3,739,969
---------------------------------------------------------------------------------------------------------
     Net investment income                                                                   $ 45,468,921
---------------------------------------------------------------------------------------------------------
REALIZED AND UNREALIZED GAIN (LOSS) ON
INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS:
  Net realized gain (loss) from:
   Investments                                                            $ (42,807,348)
   Forward foreign currency contracts and other assets and liabilities
     denominated in foreign currencies                                          806,445      $(42,000,903)
---------------------------------------------------------------------------------------------------------
  Change in net unrealized gain (loss) from:
   Investments                                                            $ 212,662,104
   Unfunded corporate loans                                                         --
   Forward foreign currency contracts and other assets and liabilities
     denominated in foreign currencies                                         (500,288)     $212,161,816
---------------------------------------------------------------------------------------------------------
  Net gain on investments and foreign currency transactions                                  $170,160,913
---------------------------------------------------------------------------------------------------------
DISTRIBUTIONS TO PREFERRED SHAREOWNERS
FROM NET INVESTMENT INCOME:                                                                  $   (396,102)
---------------------------------------------------------------------------------------------------------
  Net increase in net assets applicable to common shareowners
   resulting from operations                                                                 $215,233,732
---------------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

                      Pioneer High Income Trust | Annual Report | 3/31/10     37


Statement of Changes in Net Assets

For the Years Ended 3/31/10 and 3/31/09, respectively



---------------------------------------------------------------------------------------------------
                                                                   Year               Year
                                                                   Ended              Ended
                                                                   3/31/10            3/31/09
---------------------------------------------------------------------------------------------------
                                                                                
FROM OPERATIONS:
Net investment income                                              $ 45,468,921       $  49,810,893
Net realized loss on investments and foreign currency
  transactions                                                      (42,000,903)        (14,755,922)
Change in net unrealized gain (loss) on investments and foreign
  currency transactions                                             212,161,816        (159,922,018)
Dividends and distributions to preferred shareowners from net
  investment income                                                    (396,102)         (3,569,595)
---------------------------------------------------------------------------------------------------
   Net increase (decrease) in net assets applicable to
     common shareowners resulting from operations                  $215,233,732       $(128,436,642)
---------------------------------------------------------------------------------------------------
DISTRIBUTIONS TO COMMON SHAREOWNERS FROM:
Net investment income
   ($1.65 and $1.65 per share, respectively)                       $(45,526,952)      $ (45,076,053)
---------------------------------------------------------------------------------------------------
     Total distributions to common shareowners                     $(45,526,952)      $ (45,076,053)
---------------------------------------------------------------------------------------------------
FROM TRUST SHARE TRANSACTIONS:
Reinvestment of distributions                                      $  3,323,010       $   2,370,884
---------------------------------------------------------------------------------------------------
   Net increase in net assets applicable to common
     shareowners resulting from Trust share transactions           $  3,323,010       $   2,370,884
---------------------------------------------------------------------------------------------------
   Net increase (decrease) in net assets applicable to
     common shareowners                                            $173,029,790       $(171,141,811)
NET ASSETS APPLICABLE TO COMMON SHAREOWNERS:
Beginning of year                                                   194,056,917         365,198,728
---------------------------------------------------------------------------------------------------
End of year                                                        $367,086,707       $ 194,056,917
---------------------------------------------------------------------------------------------------
Undistributed net investment income                                $ 11,063,389       $  11,128,396
---------------------------------------------------------------------------------------------------


The accompanying notes are an integral part of these financial statements.

38     Pioneer High Income Trust | Annual Report | 3/31/10


Financial Highlights



--------------------------------------------------------------------------------------------------------------------------------
                                                                 Year         Year          Year          Year         Year
                                                                 Ended        Ended         Ended         Ended        Ended
                                                                 3/31/10      3/31/09       3/31/08       3/31/07      3/31/06
--------------------------------------------------------------------------------------------------------------------------------
                                                                                                        
Per Common Share Operating Performance
Net asset value, beginning of period                             $    7.07    $   13.41     $   16.63     $   16.13    $   16.34
--------------------------------------------------------------------------------------------------------------------------------
Increase (decrease) from investment operations:(a)
 Net investment income                                           $    1.65    $    1.82     $    1.90     $    1.88    $    1.88
 Net realized and unrealized gain (loss) on investments and
   foreign currency transactions                                      6.17        (6.38)        (2.73)         0.64         0.00(b)
 Dividends and distributions to preferred shareowners from:
  Net investment income                                              (0.01)       (0.13)        (0.22)        (0.27)       (0.19)
  Net realized gains                                                    --           --         (0.07)        (0.01)       (0.02)
--------------------------------------------------------------------------------------------------------------------------------
   Net increase (decrease) from investment operations            $    7.81    $   (4.69)    $   (1.12)    $    2.24    $    1.67
Dividends and distributions to common shareowners from:
  Net investment income                                              (1.65)       (1.65)        (1.65)        (1.65)       (1.65)
  Net realized gains                                                    --           --         (0.45)        (0.09)       (0.23)
--------------------------------------------------------------------------------------------------------------------------------
Net increase (decrease) in net asset value                       $    6.16    $   (6.34)    $   (3.22)    $    0.50    $   (0.21)
--------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period(c)                                $   13.23    $    7.07     $   13.41     $   16.63    $   16.13
--------------------------------------------------------------------------------------------------------------------------------
Market value, end of period(c)                                   $   15.38    $    8.03     $   13.15     $   17.84    $   16.80
================================================================================================================================
Total return at market value(d)                                     119.69%      (27.74)%      (15.37)%       17.61%       24.84%
Ratios to average net assets of common shareowners
 Net expenses(e)                                                      1.23%        1.25%         1.02%         1.01%        0.99%
 Net investment income before preferred share dividends              14.92%       17.03%        12.36%        11.57%       11.68%
 Preferred share dividends                                            0.13%        1.22%         1.45%         1.67%        1.19%
 Net investment income available to common shareowners               14.79%       15.81%        10.91%         9.90%       10.49%
Portfolio turnover                                                      15%          19%           15%           27%          20%


The accompanying notes are an integral part of these financial statements.

                         Pioneer High Income Trust | Annual Report | 3/31/10
39


Financial Highlights (continued)



--------------------------------------------------------------------------------------------------------------------------------
                                                                 Year         Year          Year          Year         Year
                                                                 Ended        Ended         Ended         Ended        Ended
                                                                 3/31/10      3/31/09       3/31/08       3/31/07      3/31/06
--------------------------------------------------------------------------------------------------------------------------------
                                                                                                        
Net assets of common shareowners, end of period (in thousands)   $ 367,087    $ 194,057     $ 365,199     $ 450,444    $ 434,429
Preferred shares outstanding (in thousands)                      $ 151,000    $ 151,000     $ 151,000     $ 151,000    $ 151,000
Asset coverage per preferred share, end of period                $  85,777    $  57,131     $  85,481     $  99,597    $  96,940
Average market value per preferred share(f)                      $  25,000    $  25,000     $  25,000     $  25,000    $  25,000
Liquidation value, including dividends payable, per
 preferred share                                                 $  25,001    $  25,002     $  25,018     $  25,020    $  25,015
Ratios to average net assets of common shareowners before
 waivers and reimbursement of expenses
 Net expenses (e)                                                     1.23%        1.25%         1.02%         1.01%        0.99%
 Net investment income before preferred share dividends              14.92%       17.03%        12.36%        11.57%       11.68%
 Preferred share dividends                                            0.13%        1.22%         1.45%         1.67%        1.19%
 Net investment income available to common shareowners               14.79%       15.81%        10.91%         9.90%       10.49%
================================================================================================================================


(a)  The per common share data presented above is based upon the average common
     shares outstanding for the periods presented.
(b)  Amount is less than $0.01 per common share.
(c)  Net asset value and market value are published in Barron's on Saturday, The
     Wall Street Journal on Monday and The New York Times on Monday and
     Saturday.
(d)  Total investment return is calculated assuming a purchase of common shares
     at the current market value on the first day and a sale at the current
     market value on the last day of the periods reported. Dividends and
     distributions, if any, are assumed for purposes of this calculation to be
     reinvested at prices obtained under the Trust's dividend reinvestment plan.
     Total investment return does not reflect brokerage commissions. Past
     performance is not a guarantee of future results.
(e)  Expense ratios do not reflect the effect of dividend payments to preferred
     shareowners.
(f)  Market value is redemption value without an active market.

The information above represents the audited operating performance data for a
share of common stock outstanding, total investment return, ratios to average
net assets of common shareowners and other supplemental data for the periods
indicated. This information has been determined based upon financial information
provided in the financial statements and market value data for the Trust's
common shares.

The accompanying notes are an integral part of these financial statements.

40    Pioneer High Income Trust | Annual Report | 3/31/10


Notes to Financial Statements | 3/31/10

1.   Organization and Significant Accounting Policies

Pioneer High Income Trust (the Trust) was organized as a Delaware statutory
trust on January 30, 2002. Prior to commencing operations on April 26, 2002, the
Trust had no operations other than matters relating to its organization and
registration as a diversified, closed-end management investment company under
the Investment Company Act of 1940, as amended. The investment objective of the
Trust is to seek a high level of current income and the Trust may seek capital
appreciation to the extent that it is consistent with its investment objective.

Information regarding the Trust's principal risks is contained in the Trust's
original offering prospectus, with additional information included in the
Trust's shareowner reports from time to time. Please refer to those documents
when considering the Trust's risks. At times, the Trust's investments may
represent industries or industry sectors that are interrelated or have common
risks, making it more susceptible to any economic, political, or regulatory
developments or other risks affecting those industries or sectors.

Under normal market conditions, the Trust invests at least 80% of its assets in
below investment grade (high-yield) debt securities, loans and preferred stocks.
Because the Trust's investments will be concentrated in the high-yield
securities, it will be subject to risks of such securities. Below investment
grade securities are commonly referred to as "junk bonds" and are considered
speculative with respect to the issuer's capacity to pay interest and repay
principal.

The Trust's investments in certain foreign markets or countries with limited
developing markets may subject the Trust to a greater degree of risk than in a
developed market. These risks include disruptive political or economic
conditions and the possible imposition of adverse governmental laws or currency
exchange restrictions.

The Trust's financial statements have been prepared in conformity with U.S.
generally accepted accounting principles that require the management of the
Trust to, among other things, make estimates and assumptions that affect the
reported amounts of assets and liabilities, the disclosure of contingent assets
and liabilities at the date of the financial statements and the reported amounts
of income, expenses and gain or loss on investments during the reporting year.
Actual results could differ from those estimates.

The following is a summary of significant accounting policies followed by the
Trust in the preparation of its financial statements, which are consistent with
those policies generally accepted in the investment company industry:

                      Pioneer High Income Trust | Annual Report | 3/31/10     41


A.   Security Valuation

     Security transactions are recorded as of trade date. The net asset value of
     the Trust is computed once daily, on each day the New York Stock Exchange
     (NYSE) is open, as of the close of regular trading on the NYSE. Investments
     in loan interests are valued in accordance with guidelines established by
     the Board of Trustees at the mean between the last available bid and asked
     prices from one or more brokers or dealers as obtained from Loan Pricing
     Corporation. For the limited number of loan interests for which no reliable
     price quotes are available, such loan interests will be valued by Loan
     Pricing Corporation through the use of pricing matrices to determine
     valuations. Fixed income securities with remaining maturity of more than
     sixty days are valued at prices supplied by independent pricing services,
     which consider such factors as market prices, market events, quotations
     from one or more brokers, Treasury spreads, yields, maturities and ratings.
     Valuations may be supplemented by dealers and other sources, as required.
     Equity securities are valued at the last sale price on the principal
     exchange where they are traded. Securities or loans for which market prices
     and/or quotations are not readily available or are considered to be
     unreliable are valued using fair value methods pursuant to procedures
     adopted by the Board of Trustees.

     The Trust may use the fair value methods if it is determined that a
     significant event has occurred after the close of the exchange or market on
     which the security trades and prior to the determination of the Trust's net
     asset value. Thus, the valuation of the Trust's securities may differ from
     exchange prices. At March 31, 2010, 7 securities were valued using fair
     value methods (other than securities valued using prices supplied by
     independent pricing services) representing 1.3% of net assets applicable to
     common shareowners. Inputs used in the valuation of a security using fair
     value methods include credit ratings, the financial condition of the
     company, current market conditions and comparable securities. Short-term
     income securities with remaining maturities of sixty days or less generally
     are valued at amortized cost. Money market mutual funds are valued at net
     asset value.

     Discounts and premiums on debt securities are accreted or amortized,
     respectively, daily, into interest income on an effective yield to maturity
     basis with a corresponding increase or decrease in the cost basis of the
     security. Premiums and discounts related to certain mortgage-backed
     securities are amortized or accreted in proportion to the monthly paydowns.
     Interest income, including income on interest bearing cash accounts, is
     recorded on an accrual basis, net of unrecoverable foreign taxes withheld
     at the applicable country rates.

     Dividend income is recorded on the ex-dividend date, except that certain
     dividends from foreign securities where the ex-dividend date may have
     passed are recorded as soon as the Trust becomes aware of the ex-dividend
     data in the exercise of reasonable diligence.

42     Pioneer High Income Trust | Annual Report | 3/31/10


     Gains and losses on sales of investments are calculated on the identified
     cost method for both financial reporting and federal income tax purposes.

B.   Foreign Currency Translation

     The books and records of the Trust are maintained in U.S. dollars. Amounts
     denominated in foreign currencies are translated into U.S. dollars using
     current exchange rates.

     Net realized gains and losses on foreign currency transactions, if any,
     represent, among other things, the net realized gains and losses on foreign
     currency contracts, disposition of foreign currencies and the difference
     between the amount of income accrued and the U.S. dollars actually
     received. Further, the effects of changes in foreign currency exchange
     rates on investments are not segregated in the Statement of Operations from
     the effects of changes in market prices of those securities but are
     included with the net realized and unrealized gain or loss on investments.

C.   Forward Foreign Currency Contracts

     The Trust may enter into forward foreign currency contracts (contracts) for
     the purchase or sale of a specific foreign currency at a fixed price on a
     future date. All contracts are marked to market daily at the applicable
     exchange rates, and any resulting unrealized gains or losses are recorded
     in the Trust's financial statements. The Trust records realized gains and
     losses at the time a portfolio hedge is offset by entry into a closing
     transaction or extinguished by delivery of the currency. Risks may arise
     upon entering into these contracts from the potential inability of
     counterparties to meet the terms of the contracts and from unanticipated
     movements in the value of foreign currencies relative to the U.S. dollar
     (see Note 5).

D.   Federal Income Taxes

     It is the Trust's policy to comply with the requirements of the Internal
     Revenue Code applicable to regulated investment companies and to distribute
     all of its taxable income and net realized capital gains, if any, to its
     shareowners. Therefore, no federal income tax provision is required. Tax
     years for the prior three fiscal years remain subject to examination by tax
     authorities.

     The amounts and characterizations of distributions to shareowners for
     financial reporting purposes are determined in accordance with federal
     income tax rules. Therefore, the sources of the Trust's distributions may
     be shown in the accompanying financial statements as either from or in
     excess of net investment income or net realized gain (loss) on investment
     and foreign currency transactions, or from paid-in capital, depending on
     the type of book/tax differences that may exist.

                      Pioneer High Income Trust | Annual Report | 3/31/10     43


     At March 31, 2010, the Trust reclassified $389,126 to increase
     undistributed net investment income and to increase net realized loss on
     investments to reflect permanent book/tax differences. The reclassification
     has no impact on the net assets of the Trust and presents the Trust's
     capital accounts on a tax basis.

     At March 31, 2010, the Trust had a net capital loss carryforward of
     $56,023,174 which is comprised of $9,456,629 which will expire in 2017 and
     $46,566,545 which will expire 2018 if not utilized.

     The Trust has elected to defer approximately $6,519,449 of capital losses
     recognized between November 1, 2009 and March 31, 2010 to its fiscal year
     ending March 31, 2011.

     The tax character of distributions paid to common and preferred shareowners
     during the years ended March 31, 2010 and March 31, 2009 was as follows:



--------------------------------------------------------------------------------
                                                             2010           2009
--------------------------------------------------------------------------------
                                                               
Distributions paid from:
Ordinary Income                                       $45,923,054    $48,645,648
--------------------------------------------------------------------------------
   Total taxable distributions                        $45,923,054    $48,645,648
================================================================================


     The following shows the components of distributable earnings (losses) on a
     federal income tax basis at March 31, 2010.



--------------------------------------------------------------------------------
                                                                           2010
--------------------------------------------------------------------------------
                                                                
Distributable earnings:
Undistributed ordinary income                                      $ 13,299,905
Capital loss carryforward                                           (56,023,174)
Post-October loss deferred                                           (6,519,449)
Dividends payable                                                        (7,091)
Unrealized appreciation                                              22,373,595
--------------------------------------------------------------------------------
   Total                                                           $(26,876,214)
================================================================================


     The difference between book-basis and tax-basis unrealized appreciation is
     primarily attributable to the tax deferral of losses on straddles and wash
     sales, the realization for tax purposes of unrealized losses on certain
     foreign currency contracts, the difference between book and tax
     amortization methods for premiums and discounts on fixed income securities,
     the accrual of income on securities in default, and other book/tax
     temporary differences.

E.   Repurchase Agreements

     With respect to repurchase agreements entered into by the Trust, the value
     of the underlying securities (collateral), including accrued interest is
     required to be equal to or in excess of the repurchase price. The
     collateral for all repurchase agreements is held in safekeeping in the
     customer-only

44     Pioneer High Income Trust | Annual Report | 3/31/10


     account of the Trust's custodian or sub custodians of the Trust. The
     Trust's investment adviser, Pioneer Investment Management, Inc. (PIM), is
     responsible for determining that the value of the collateral remains at
     least equal to the repurchase price.

F.   Securities Lending

     The Trust lends securities in its portfolio to certain broker-dealers or
     other institutional investors. When entering into a securities loan
     transaction, the Trust typically receives cash collateral from the borrower
     equal to at least the value of the securities loaned, which is invested in
     temporary investments. Credit Suisse AG, New York Branch, as the Trust's
     securities lending agent, manages the Trust's securities lending
     collateral. The income earned on the investment of collateral is shared
     with the borrower and the lending agent in payment of any rebate due to the
     borrower with respect to the securities loan, and in compensation for the
     lending agent's services to the Trust. The Trust also continues to receive
     payments in lieu of dividends or interest on the securities loaned. Gain or
     loss on the fair value of the loaned securities that may occur during the
     term of the loan will be for the account of the Trust. The amount of the
     collateral is required to be adjusted daily to reflect any price
     fluctuation in the fair value of the loaned securities. If the required
     fair value of the collateral is less than the fair value of the loaned
     securities, the borrower is required to deliver additional collateral for
     the account of the Trust prior to the close of the next business day. The
     Trust has the right, under the lending agreement, to terminate the loan and
     recover the securities from the borrower with prior notice. The Trust is
     required to return the cash collateral to the borrower and could suffer a
     loss if the value of the collateral, as invested, has declined.

G.   Automatic Dividend Reinvestment Plan

     All common shareowners whose shares are registered in their own names
     automatically participate in the Automatic Dividend Reinvestment Plan (the
     Plan), under which participants receive all dividends and capital gain
     distributions (collectively, dividends) in full and fractional common
     shares of the Trust in lieu of cash. Shareowners may elect not to
     participate in the Plan. Shareowners not participating in the Plan receive
     all dividends and capital gain distributions in cash. Participation in the
     Plan is completely voluntary and may be terminated or resumed at any time
     without penalty by notifying American Stock Transfer & Trust Company, the
     agent for shareowners in administering the Plan (the Plan Agent), in
     writing prior to any dividend record date; otherwise such termination or
     resumption will be effective with respect to any subsequently declared
     dividend or other distribution.

     If a shareowner's shares are held in the name of a brokerage firm, bank or
     other nominee, the shareowner can ask the firm or nominee to participate in
     the Plan on the shareowner's behalf. If the firm or nominee does not offer

                      Pioneer High Income Trust | Annual Report | 3/31/10     45


     the Plan, dividends will be paid in cash to the shareowner of record. A
     firm or nominee may reinvest a shareowner's cash dividends in common shares
     of the Trust on terms that differ from the terms of the Plan.

     Whenever the Trust declares a dividend on common shares payable in cash,
     participants in the Plan will receive the equivalent in common shares
     acquired by the Plan Agent either (i) through receipt of additional
     unissued but authorized common shares from the Trust or (ii) by purchase of
     outstanding common shares on the New York Stock Exchange or elsewhere. If,
     on the payment date for any dividend the net asset value per common share
     is equal to or less than the market price per share plus estimated
     brokerage trading fees (market premium), the Plan Agent will invest the
     dividend amount in newly issued common shares. The number of newly issued
     common shares to be credited to each account will be determined by dividing
     the dollar amount of the dividend by the net asset value per common share
     on the date the shares are issued, provided that the maximum discount from
     the then current market price per share on the date of issuance does not
     exceed 5%. If, on the payment date for any dividend, the net asset value
     per common share is greater than the market value (market discount), the
     Plan Agent will invest the dividend amount in common shares acquired in
     open-market purchases. There are no brokerage charges with respect to newly
     issued common shares. However, each participant will pay a pro rata share
     of brokerage trading fees incurred with respect to the Plan Agent's
     open-market purchases. Participating in the Plan does not relieve
     shareowners from any federal, state or local taxes which may be due on
     dividends paid in any taxable year. Shareowners holding Plan shares in a
     brokerage account may not be able to transfer the shares to another broker
     and continue to participate in the Plan.

2.   Management Agreement

PIM, a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit) manages
the Trust's portfolio. Management fees payable under the Trust's Advisory
Agreement with PIM are calculated daily at the annual rate of 0.60% of the
Trust's average daily managed assets. "Managed assets" means (a) the total
assets of the Trust, including any form of investment leverage, minus (b) all
accrued liabilities incurred in the normal course of operations, which shall not
include any liabilities or obligations attributable to investment leverage
obtained through (i) indebtedness of any type (including, without limitation,
borrowing through a credit facility of the issuance of debt securities), (ii)
the issuance of preferred stock or other similar preference securities, and/or
(iii) any other means. Prior to November 1, 2009, management fees were
calculated at the annual rate of 0.60% of the Trust's average weekly managed
assets. For the year ended March 31, 2010, the net management fee was equivalent
to 0.60% of the Trust's average daily managed assets, which was equivalent to
0.90% of the Trust's average daily net assets attributable to the common
shareowners.

46     Pioneer High Income Trust | Annual Report | 3/31/10


In addition, under PIM's management and administration agreements, certain other
services and costs are paid by PIM and reimbursed by the Trust. At March 31,
2010 $272,431 was payable to PIM related to management costs, administrative
costs and certain other services and is in included in "Due to affiliates" on
the Statement of Assets and Liabilities.

PIM has retained Princeton Administrators, LLC (Princeton) to provide certain
administrative and accounting services to the Trust on its behalf. PIM pays
Princeton a monthly fee at an annual rate equal to 0.07% of the Trust's average
daily managed assets up to $500 million and 0.03% for average daily managed
assets in excess of $500 million, subject to a minimum monthly fee of $10,000.
Princeton receives no compensation directly from the Trust.

3.   Transfer Agents

Pioneer Investment Management Shareholder Services, Inc. (PIMSS), a wholly owned
indirect subsidiary of UniCredit, through a sub-transfer agency agreement with
American Stock Transfer & Trust Company, provides substantially all transfer
agent and shareowner services related to the Trust's common shares at negotiated
rates. Deutsche Bank Trust Company Americas (Deutsche Bank) is the transfer
agent, registrar, dividend paying agent and auction agent with respect to the
Trust's Auction Market Preferred Shares (AMPS). The Trust pays Deutsche Bank an
annual fee, as is agreed to from time to time by the Trust and Deutsche Bank,
for providing such services.

4.   Expense Offset Arrangements

The Trust has entered into an arrangement with its custodian whereby credits
realized as a result of uninvested cash balances are used to reduce a portion of
the Trust's custodian expenses. For the year ended March 31, 2010, the Trust
expenses were reduced by $4 under such arrangement.

5.   Forward Foreign Currency Contracts

At March 31, 2010, the Trust had entered into various contracts that obligate
the Trust to deliver or take delivery of currencies at specified future maturity
dates. Alternatively, prior to the settlement date of a forward foreign currency
contract, the Trust may close out such contract by entering into an offsetting
hedge contract. The average number of contracts open during the year ended March
31, 2010 was 8,222,667.

                      Pioneer High Income Trust | Annual Report | 3/31/10     47


Open portfolio hedges at March 31, 2010, were as follows:



-------------------------------------------------------------------------------------
            Net
            Contracts                                                     Net
            to Receive/    In Exchange     Settlement                     Unrealized
Currency    (Deliver)      For US$         Date          US$ Value        Loss
-------------------------------------------------------------------------------------
                                                           
EURO         3,212,000     $ 4,733,074     6/11/10       $  4,346,296     $ (386,778)
EURO        (1,900,000)    $(2,607,370)    5/5/10        $ (2,566,864)    $   40,506
EURO        (3,700,000)    $(5,200,856)    6/11/10       $ (5,006,630)    $  194,226
EURO        (3,300,000)    $(4,606,401)    6/11/10       $ (4,465,373)    $  141,028
-------------------------------------------------------------------------------------
 Total                                                                    $  (11,018)
=====================================================================================


As of March 31, 2010, the Trust had no outstanding forward currency settlement
contracts.

6.   Unfunded Loan Commitments

As of March 31, 2010, the Trust had an unfunded loan commitment of $2,135,000
which could be extended at the option of the borrower, pursuant to the following
loan agreement:



--------------------------------------------------------------------------------
Borrower                                                Unfunded Loan Commitment
--------------------------------------------------------------------------------
                                                                   
CF Industries, Holdings, Inc., Bridge Facility Loan                   $2,135,000
================================================================================


7.   Trust Shares

There are an unlimited number of common shares of beneficial interest
authorized.

Transactions in common shares of beneficial interest for the years ended March
31, 2010 and March 31, 2009 were as follows:



--------------------------------------------------------------------------------
                                                              2010          2009
--------------------------------------------------------------------------------
                                                                
Shares outstanding at beginning of year                 27,463,925    27,227,442
Reinvestment of distributions                              273,574       236,483
--------------------------------------------------------------------------------
Shares outstanding at end of year                       27,737,499    27,463,925
================================================================================


The Trust may classify or reclassify any unissued common shares of beneficial
interest into one or more series of preferred shares of beneficial interest. As
of March 31, 2010, there were 6,040 AMPS as follows: Series M7-2,020, Series
W28-2,020 and Series TH7-2,000.

Dividends on Series M7 and Series TH7 are cumulative at a rate which is reset
every seven days based on the results of an auction. Dividends on Series W28 are
also cumulative at a rate reset every 28 days based on the results of an
auction. An auction fails if there are more AMPS offered for sale than there are
buyers. When an auction fails, the dividend rate for the period will be the
maximum rate on the auction dates described in the prospectus for the AMPS.

48     Pioneer High Income Trust | Annual Report | 3/31/10


Preferred shareowners will not be able to sell their AMPS at an auction if the
auction fails. Since February 2008, the Trust's auctions related to the AMPS
have failed. The maximum rate for the 7-Day Series is 150% of the 7 day
commercial paper rate. The maximum rate for the 28 day Series is 150% of the 30
day commercial paper rate. Dividend rates on AMPS ranged from 0.060% to 0.677%
during the year ended March 31, 2010.

The Trust may not declare dividends or make other distributions on its common
shares or purchase any such shares if, at the time of the declaration,
distribution or purchase, the Trust does not comply with the asset coverage
ratios described in the prospectus for the AMPS.

The AMPS are redeemable at the option of the Trust, in whole or in part, on any
dividend payment date at $25,000 per share plus any accumulated or unpaid
dividends, whether or not declared. The AMPS are also subject to mandatory
redemption at $25,000 per share plus any accumulated or unpaid dividends,
whether or not declared, if certain requirements relating to the composition of
the assets and liabilities of the Trust as set forth in the Statement of
Preference are not satisfied.

The holders of AMPS have voting rights equal to the holders of the Trust's
common shares (one vote per share) and will vote together with holders of the
common shares as a single class. Holders of AMPS are also entitled to elect two
of the Trust's Trustees. In addition, the Investment Company Act of 1940, as
amended, requires that along with approval by shareowners that might otherwise
be required, the approval of the holders of a majority of any outstanding
preferred shares, voting separately as a class, would be required to (a) adopt
any plan of reorganization that would adversely affect the preferred shares and
(b) take any action requiring a vote of security holders, including, among other
things, changes in the Trust's subclassification as a closed-end management
investment company or changes in its fundamental investment restrictions.

8.   Additional Disclosures about Derivative Instruments and Hedging Activities:

Fair values of derivative instruments as of March 31, 2010:



----------------------------------------------------------------------------------------------------------
Derivatives Not
Accounted for as Hedging
Instruments under
Accounting Standards                    Asset Derivatives                   Liabilities Derivatives
Codification (ASC) 815        ------------------------------------    ------------------------------------
(formerly FASB
Statement 133)                Balance Sheet Location    Fair Value    Balance Sheet Location    Fair Value
----------------------------------------------------------------------------------------------------------
                                                                                    
Foreign Exchange Contracts    Receivables               $ --          Payables*                 $11,018
----------------------------------------------------------------------------------------------------------
  Total                                                 $ --                                    $11,018
==========================================================================================================


*    Foreign Exchange Contracts are shown as a net payable on the Statement of
     Assets and Liabilities.

                      Pioneer High Income Trust | Annual Report | 3/31/10     49


The effect of derivative instruments on the Statement of Operations for the year
ended March 31, 2010 was as follows:



--------------------------------------------------------------------------------------------------------
Derivatives Not
Accounted for as
Hedging Instruments
under Accounting Standards                                                         Change in
Codification (ASC) 815        Location of Gain or         Realized Gain or         Unrealized Gain or
(formerly FASB                (Loss) on Derivatives       (Loss) on Derivatives    (Loss) on Derivatives
Statement 133)                Recognized in Income        Recognized in Income     Recognized in Income
--------------------------------------------------------------------------------------------------------
                                                                          
Foreign Exchange              Net realized gain on        $669,074
Contracts                     forward foreign currency
                              contracts and other
                              assets and liabilities
                              denominated in foreign
                              currencies
--------------------------------------------------------------------------------------------------------
Foreign Exchange              Change in net                                        $(661,324)
Contracts                     unrealized gain (loss)
                              on forward foreign
                              currency contracts and
                              other assets and
                              liabilities denominated
                              in foreign currencies
========================================================================================================


9.   Subsequent Events

Subsequent to March 31, 2010 the Board of Trustees of the Trust declared a
dividend from undistributed net investment income of $0.1375 per common share
payable April 30, 2010, to common shareowners of record on April 15, 2010.

Subsequent to March 31, 2010, dividends declared and paid on preferred shares
totaled $35,556 in aggregate for the two outstanding preferred share series
through May 13, 2010.

In preparing these financial statements, PIM has evaluated the impact of all
events and transactions for potential recognition or disclosure and has
determined that other than disclosed above, there were no events requiring
recognition or disclosure in the financial statements.

50     Pioneer High Income Trust | Annual Report | 3/31/10


Report of Independent Registered Public Accounting Firm

To the Board of Trustees and the Shareowners of
Pioneer High Income Trust:
--------------------------------------------------------------------------------
We have audited the accompanying statement of assets and liabilities of Pioneer
High Income Trust (the "Trust"), including the schedule of investments, as of
March 31, 2010, and the related statement of operations for the year then ended,
the statements of changes in net assets for each of the two years in the period
then ended, and the financial highlights for each of the five years in the
period then ended. These financial statements and financial highlights are the
responsibility of the Trust's management. Our responsibility is to express an
opinion on these financial statements and financial highlights based on our
audits.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material misstatement. We were
not engaged to perform an audit of the Trust's internal control over financial
reporting. Our audits included consideration of internal control over financial
reporting as a basis for designing audit procedures that are appropriate in the
circumstances, but not for the purpose of expressing an opinion on the
effectiveness of the Trust's internal control over financial reporting.
Accordingly, we express no such opinion. An audit also includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements and financial highlights, assessing the accounting principles used
and significant estimates made by management, and evaluating the overall
financial statement presentation. Our procedures included confirmation of
securities owned as of March 31, 2010, by correspondence with the custodian,
selling or agent banks and brokers or by other appropriate auditing procedures
where replies from brokers were not received. We believe that our audits provide
a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to
above present fairly, in all material respects, the financial position of
Pioneer High Income Trust at March 31, 2010, the results of its operations for
the year then ended, the changes in its net assets for each of the two years in
the period then ended, and the financial highlights for each of the five years
in the period then ended, in conformity with U.S. generally accepted accounting
principles.

                                                            /s/Ernst + Young LLP

Boston, Massachusetts
May 21, 2010

                      Pioneer High Income Trust | Annual Report | 3/31/10     51


ADDITIONAL INFORMATION (unaudited)

During the period, there have been no material changes in the Trust's investment
objective or fundamental policies that have not been approved by the
shareowners. There have been no changes in the Trust's charter or By-Laws that
would delay or prevent a change in control of the Trust that have not been
approved by the shareowners. During the period, there have been no changes in
the principal risk factors associated with investment in the Trust. There were
no changes in the persons who are primarily responsible for the day-to-day
management of the Trust's portfolio.

Notice is hereby given in accordance with Section 23(c) of the Investment
Company Act of 1940 that the Trust may purchase, from time to time, its common
shares in the open market.

CEO CERTIFICATION DISCLOSURE (unaudited)

The Trust's Chief Executive Officer has submitted to the New York Stock Exchange
the annual CEO certification as required by Section 303A.12(a) of the NYSE
Listed Company Manual. In addition, the Trust has filed with the Securities and
Exchange Commission the certification of its Chief Executive Officer and Chief
Financial Officer required by Section 302 of the Sarbanes- Oxley Act.

52     Pioneer High Income Trust | Annual Report | 3/31/10


Results of Shareholder Meeting (unaudited)

At the annual meeting of shareowners held on September 22, 2009, and adjourned
to October 8, 2009 with respect to Proposal 2, shareowners of Pioneer High
Income Trust were asked to consider the proposals described below. A report of
the total votes cast by the Trust's shareholders follows:

Proposal 1  --  To elect Class I Trustees.



--------------------------------------------------------------------------------
Nominee                                    For                          Withheld
--------------------------------------------------------------------------------
                                                                  
Mary K. Bush                               17,296,048                   771,075
Thomas J. Perna                            17,367,768                   699,355
Marguerite A. Piret+                       3,322                             32


+    Elected by Preferred Shares only

Proposal 2  --  To approve an Amended and Restated Management Agreement with
Pioneer Investment Management, Inc.



--------------------------------------------------------------------------------
                                                                       Broker
For                     Against                  Abstain               Non-Votes
--------------------------------------------------------------------------------
                                                              
12,630,550              369,189                  334,425               4,737,065


IMPORTANT TAX INFORMATION (unaudited)

The following information is provided with respect to the ordinary income
distributions paid by Pioneer High Income Trust during the fiscal year ended
March 31, 2010:


                                                                      
Interest-Related Dividends for Non-U.S. Residents                        78.37%*


------------------
*    Represents the portion of the taxable ordinary income dividends eligible
     for tax exemption from U.S. withholding tax for nonresident aliens and
     foreign corporations.

                      Pioneer High Income Trust | Annual Report | 3/31/10     53


Approval of Investment Advisory Agreement (unaudited)

Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to
Pioneer High Income Trust (the Trust) pursuant to an investment advisory
agreement between PIM and the Trust. In order for PIM to remain the investment
adviser of the Trust, the Trustees of the Trust must determine annually whether
to renew the investment advisory agreement for the Trust.

The contract review process began in March 2009 as the Trustees of the Trust
agreed on, among other things, an overall approach and timeline for the process.
In July 2009, the Trustees approved the format of the contract review materials
and submitted their formal request to PIM to furnish information necessary to
evaluate the terms of the investment advisory agreement. The contract review
materials were provided to the Trustees in August 2009. After reviewing and
discussing the materials, the Trustees submitted a request for additional
information to PIM in September 2009, and materials were provided in response to
this request. Meetings of the independent Trustees of the Trust were held in
July, September, October, and November, 2009 to review and discuss the contract
review materials. In addition, the Trustees took into account the information
related to the Trust provided to the Trustees at each regularly scheduled
meeting.

At a meeting held on November 10, 2009, based on their evaluation of the
information provided by PIM and third parties, the Trustees of the Trust,
including the independent Trustees voting separately, unanimously approved the
renewal of the investment advisory agreement for another year. In considering
the renewal of the investment advisory agreement, the Trustees considered
various factors that they determined were relevant, including the factors
described below. The Trustees did not identify any single factor as the
controlling factor in determining to approve the renewal of the agreement.

Nature, Extent and Quality of Services
The Trustees considered the nature, extent and quality of the services that had
been provided by PIM to the Trust, taking into account the investment objective
and strategy of the Trust. The Trustees reviewed the terms of the investment
advisory agreement. The Trustees also reviewed PIM's investment approach for the
Trust, its research process and its process for trade execution. The Trustees
considered the resources of PIM and the personnel of PIM who provide investment
management services to the Trust. The Trustees considered the non-investment
resources and personnel of PIM involved in PIM's services to the Trust,
including PIM's compliance and legal resources and personnel. The Trustees also
considered the substantial attention and high priority given by PIM's senior
management to the Pioneer fund complex.

54     Pioneer High Income Trust | Annual Report | 3/31/10


The Trustees considered that PIM supervises and monitors the performance of the
Trust's service providers and provides the Trust with personnel (including Trust
officers) and other resources that are necessary for the Trust's business
management and operations. The Trustees also considered that, as administrator,
PIM is responsible for the administration of the Trust's business and other
affairs. The Trustees considered the fees paid to PIM for the provision of
administration services.

Based on these considerations, the Trustees concluded that the nature, extent
and quality of services that had been provided by PIM to the Trust were
satisfactory and consistent with the terms of the investment advisory agreement.

Performance of the Trust
The Trustees considered the performance results of the Trust over various time
periods. They reviewed information comparing the Trust's performance with the
performance of its peer group of funds as classified by Morningstar, Inc.
(Morningstar), an independent provider of investment company data, and with the
performance of the Trust's benchmark index. The Trustees considered that the
Trust's annualized total return was in the second quintile of its Morningstar
category for the one and three year periods ended June 30, 2009, and in the
first quintile of its Morningstar category for the five year period ended June
30 2009. (In all quintile rankings referred to throughout this disclosure, first
quintile is most favorable to the Trust's shareowners. Thus, highest relative
performance would be first quintile and lowest relative expenses would also be
first quintile.) The Trustees considered that the Trust's yield (at market
value) was better than the average yield (at market value) of the funds in its
peer group as of June 30, 2009. The Trustees noted that the yield of the Trust
also compared favorably to the yield of the Trust's benchmark as of June 30,
2009. The Trustees reviewed data provided by Pioneer showing how leverage had
benefited the Trust's common shareholders. The Trustees concluded that the
investment performance of the Trust was satisfactory.

Management Fee and Expenses
The Trustees considered information on the fees and expenses of the Trust in
comparison to the management fees and the expense ratios of a peer group of
funds selected on the basis of criteria determined by the independent Trustees
for this purpose using data provided by Strategic Insight Mutual Fund Research
and Consulting, LLC (Strategic Insight), an independent third party.

The Trustees considered that the Trust's management fee rate based on net assets
attributable to common shares for the twelve months ended June 30, 2009 was in
the fourth quintile relative to the management fees paid by other funds in its
Strategic Insight peer group for the comparable period. The Trustees considered
the effect of leverage on the Trust's management fee relative to its peers by
reviewing the management fee ratios of the Trust and its peers based on managed
assets rather than net assets attributable to common shares.

                      Pioneer High Income Trust | Annual Report | 3/31/10     55


They noted that, on that basis, the Trust's management fee for the twelve months
ended June 30, 2009 was in the second quintile relative to its peer group for
the comparable period. The Trustees also considered that the Trust's expense
ratio based on net assets attributable to common shares for the twelve months
ended June 30, 2009 was in the third quintile relative to its Strategic Insight
peer group for the comparable period.

The Trustees also reviewed management fees charged by PIM to its institutional
and other clients. In evaluating the fees associated with PIM's client accounts,
the Trustees took into account the respective demands, resources and complexity
associated with the Trust and client accounts. The Trustees noted that in some
instances the fee rates for those clients were lower than the management fee for
the Trust and considered that, under the investment advisory agreement with the
Trust, PIM performs additional services for the Trust that it does not provide
to those other clients or services that are broader in scope, including
oversight of the Trust's other service providers and activities related to
compliance and the extensive regulatory and tax regimes to which the Trust is
subject.

The Trustees concluded that the management fee payable by the Trust to PIM was
reasonable in relation to the nature and quality of the services provided by
PIM. The Trustees also concluded that the Trust's expense ratio was reasonable
taking into account the nature and quality of services provided by PIM.

Profitability
The Trustees considered information provided by PIM regarding the profitability
of PIM with respect to the advisory services provided by PIM to the Trust,
including the methodology used by PIM in allocating certain of its costs to the
management of the Trust. The Trustees also considered PIM's profit margin in
connection with the overall operation of the Trust. They further reviewed the
financial results realized by PIM and its affiliates from non-fund businesses.
The Trustees considered PIM's profit margins with respect to the Trust in
comparison to the limited industry data available and noted that the
profitability of any adviser was affected by numerous factors, including its
organizational structure and method for allocating expenses. The Trustees
concluded that PIM's profitability with respect to the management of the Trust
was not unreasonable.

Economies of Scale
The Trustees considered the extent to which PIM may realize economies of scale
or other efficiencies in managing and supporting the Trust. Since the Trust is a
closed-end fund that has not raised additional capital, the Trustees concluded
that economies of scale were not a relevant consideration in the renewal of the
investment advisory agreement.

56     Pioneer High Income Trust | Annual Report | 3/31/10


Other Benefits
The Trustees considered the other benefits to PIM from its relationship with the
Trust. The Trustees considered the character and amount of fees paid by the
Trust, other than under the investment advisory agreement, for services provided
by PIM and its affiliates. The Trustees further considered the revenues and
profitability of PIM's businesses other than the fund business. The Trustees
considered the intangible benefits to PIM by virtue of its relationship with the
Trust and the other Pioneer funds. The Trustees concluded that the receipt of
these benefits was reasonable in the context of the overall relationship between
PIM and the Trust.

Conclusion
After consideration of the factors described above as well as other factors, the
Trustees, including all of the independent Trustees, concluded that the
investment advisory agreement between PIM and the Trust, including the fees
payable thereunder, was fair and reasonable and voted to approve the proposed
renewal of the investment advisory agreement for the Trust.

                      Pioneer High Income Trust | Annual Report | 3/31/10     57


Trustees, Officers and Service Providers

Investment Adviser
Pioneer Investment Management, Inc.

Custodian
Brown Brothers Harriman & Co.

Independent Registered Public Accounting Firm
Ernst & Young LLP

Legal Counsel
Bingham McCutchen LLP

Transfer Agent
Pioneer Investment Management Shareholder Services, Inc.

Shareowner Services and Sub-Transfer Agent
American Stock Transfer & Trust Company

Preferred Share Auction/Transfer Agent and Registrar
Deutsche Bank Trust Company Americas

Sub-Administrator
Princeton Administrators, LLC

Proxy Voting Policies and Procedures of the Trust are available without charge,
upon request, by calling our toll free number (1-800-225-6292). Information
regarding how the Trust voted proxies relating to portfolio securities during
the most recent 12-month period ended June 30 is publicly available to
shareowners at www.pioneerinvestments.com. This information is also available on
the Securities and Exchange Commission's web site at http://www.sec.gov.

Trustees and Officers

The Board of Trustees provides broad supervision over the Trust's affairs. The
officers of the Trust are responsible for the Trust's operations. The Trustees
and officers are listed below, together with their principal occupations during
the past five years. Trustees who are interested persons of the Trust within the
meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are
not interested persons of the Trust are referred to as Independent Trustees.
Each of the Trustees, except Mr. West, serves as a Trustee of each of the 57
U.S. registered investment portfolios for which Pioneer serves as investment
adviser (the "Pioneer Funds"). Mr. West serves as a Trustee of 44 U.S.
registered investment portfolios for which Pioneer serves as investment adviser.
The address for all Trustees and all officers of the Trust is 60 State Street,
Boston, Massachusetts 02109.

58     Pioneer High Income Trust | Annual Report | 3/31/10


Interested Trustees


----------------------------------------------------------------------
                            Position Held     Length of Service
Name and Age                With the Trust    and Term of Office
----------------------------------------------------------------------
                                        
John F. Cogan, Jr. (83)*    Chairman of the   Class II Trustee since
                            Board, Trustee    2002. Term expires
                            and President     in 2010. Elected by
                                              Preferred Shares only.
----------------------------------------------------------------------
Daniel K. Kingsbury (51)*   Trustee and       Class III Trustee since
                            Executive Vice    2007. Term expires
                            President         in 2011.
----------------------------------------------------------------------

Interested Trustees

--------------------------------------------------------------------------------------------------------------------
                                                                                                Other Directorships
Name and Age                Principal Occupation During Past Five Years                         Held by this Trustee
--------------------------------------------------------------------------------------------------------------------
                                                                                          
John F. Cogan, Jr. (83)*    Non-Executive Chairman and a Director of Pioneer Investment         None
                            Management USA Inc. ("PIM-USA"); Chairman and a Director of
                            Pioneer; Chairman and Director of Pioneer Institutional Asset
                            Management, Inc. (since 2006); Director of Pioneer Alternative
                            Investment Management Limited (Dublin); President and a Direc-
                            tor of Pioneer Alternative Investment Management (Bermuda)
                            Limited and affiliated funds; Deputy Chairman and a Director of
                            Pioneer Global Asset Management S.p.A. ("PGAM") (until April
                            2010); Director of PIOGLOBAL Real Estate Investment Fund
                            (Russia) (until June 2006); Director of Nano-C, Inc. (since
                            2003); Director of Cole Management Inc. (since 2004); Director
                            of Fiduciary Counseling, Inc.; President and Director of Pioneer
                            Funds Distributor, Inc. ("PFD") (until May 2006); President of all
                            of the Pioneer Funds; and Of Counsel, Wilmer Cutler Pickering
                            Hale and Dorr LLP
--------------------------------------------------------------------------------------------------------------------
Daniel K. Kingsbury (51)*   Director, CEO and President of PIM USA (since February 2007);       None
                            Director and President of Pioneer and Pioneer Institutional
                            Asset Management, Inc. (since February 2007); Executive
                            Vice President of all of the Pioneer Funds (since March 2007);
                            Director of PGAM (2007 - 2010); Head of New Europe Division,
                            PGAM (2000 - 2005); Head of New Markets Division, PGAM
                            (2005 - 2007)
--------------------------------------------------------------------------------------------------------------------
*    Mr. Cogan and Mr. Kingsbury are Interested Trustees because they are
     officers or directors of the Trust's investment adviser and certain of its
     affiliates.


                       Pioneer High Income Trust | Annual Report | 3/31/10    59


Independent Trustees


------------------------------------------------------------
                     Position Held    Length of Service
Name and Age         With the Trust   and Term of Office
------------------------------------------------------------
                                
David R. Bock (66)   Trustee          Class II Trustee since
                                      2005. Term expires
                                      in 2010.
------------------------------------------------------------

Independent Trustees

------------------------------------------------------------------------------------------------------------------------------------
                                                                                            Other Directorships
Name and Age         Principal Occupation During Past Five Years                            Held by this Trustee
------------------------------------------------------------------------------------------------------------------------------------
                                                                                      
David R. Bock (66)   Interim Chief Executive Officer, Oxford Analytica, Inc. (privately-    Director of Enterprise Community
                     held research and consulting company) (2010 - present); Man-           Investment, Inc. (privately-held afford-
                     aging Partner, Federal City Capital Advisors (corporate advisory       able housing finance company)
                     services company) (1997 to 2004 and 2008 - present); Execu-            (1985 - present); Director of New
                     tive Vice President and Chief Financial Officer, I-trax, Inc. (pub-    York Mortgage Trust (publicly-traded
                     licly traded health care services company) (2004 - 2007); and          mortgage REIT) (2004 - 2009)
                     Executive Vice President and Chief Financial Officer, Pedestal Inc.
                     (internet-based mortgage trading company (2000 - 2002)
------------------------------------------------------------------------------------------------------------------------------------


60    Pioneer High Income Trust | Annual Report | 3/31/10




-----------------------------------------------------------
                    Position Held    Length of Service
Name and Age        With the Trust   and Term of Office
-----------------------------------------------------------
                               
Mary K. Bush (62)   Trustee          Class I Trustee since
                                     2002. Term expires
                                     in 2012.
-----------------------------------------------------------


--------------------------------------------------------------------------------------------------------------------------------
                                                                                        Other Directorships
Name and Age        Principal Occupation During Past Five Years                         Held by this Trustee
--------------------------------------------------------------------------------------------------------------------------------
                                                                                  
Mary K. Bush (62)   President, Bush International, LLC (international financial advi-   Director of Marriott International, Inc.
                    sory firm) (1991 - present); Managing Director, Federal Housing     (2008 - present); Director of Dis-
                    Finance Board (oversight of Federal Home Loan Bank system)          cover Financial Services (credit card
                    (1989 - 1991); Vice President and Head of International             issuer and electronic payment ser-
                    Finance, Federal National Mortgage Association (1988 - 1989);       vices) (2007 - present); Former
                    U.S. Alternate Executive Director, International Monetary Fund      Director of Briggs & Stratton Co.
                    (1984 - 1988); Executive Assistant to Deputy Secretary of the       (engine manufacturer) (2004 -
                    U.S. Treasury, U.S. Treasury Department (1982 - 1984); Vice         2009); Director of UAL Corporation
                    President and Team Leader in Corporate Banking, Bankers Trust       (airline holding company) (2006 -
                    Co. (1976 - 1982)                                                   present); Director of ManTech Inter-
                                                                                        national Corporation (national secu-
                                                                                        rity, defense, and intelligence tech-
                                                                                        nology firm) (2006 - present); and
                                                                                        Member, Board of Governors, Invest-
                                                                                        ment Company Institute (2007 -
                                                                                        present); Former Director of Brady
                                                                                        Corporation (2000 - 2007); Former
                                                                                        Director of Mortgage Guaranty Insur-
                                                                                        ance Corporation (1991 - 2006);
                                                                                        Former Director of Millennium
                                                                                        Chemicals, Inc. (commodity chemi-
                                                                                        cals) (2002 - 2005); Former Direc-
                                                                                        tor, R.J. Reynolds Tobacco Holdings,
                                                                                        Inc. (tobacco) (1999 - 2005);
                                                                                        Former Director of Texaco, Inc.
                                                                                        (1997 - 2001)
--------------------------------------------------------------------------------------------------------------------------------


                         Pioneer High Income Trust | Annual Report | 3/31/10
61


Independent Trustees (continued)



--------------------------------------------------------------------
                            Position Held    Length of Service
Name and Age                With the Trust   and Term of Office
--------------------------------------------------------------------
                                       
Benjamin M. Friedman (65)   Trustee          Class III Trustee since
                                             2008. Term expires in
                                             2011.
--------------------------------------------------------------------
Margaret B.W. Graham (62)   Trustee          Class III Trustee since
                                             2002. Term expires
                                             in 2011.
--------------------------------------------------------------------
Thomas J. Perna (59)        Trustee          Class I Trustee since
                                             2006. Term expires
                                             in 2012.
--------------------------------------------------------------------
Marguerite A. Piret (61)    Trustee          Class I Trustee since
                                             2002. Term expires in
                                             2012. Elected by Pre-
                                             ferred Shares only.
--------------------------------------------------------------------
Stephen K. West (81)        Trustee          Class II Trustee since
                                             2002. Term expires
                                             in 2010.
--------------------------------------------------------------------


-------------------------------------------------------------------------------------------------------------------------------
                                                                                                 Other Directorships
Name and Age                Principal Occupation During Past Five Years                          Held by this Trustee
-------------------------------------------------------------------------------------------------------------------------------
                                                                                           
Benjamin M. Friedman (65)   William Joseph Maier Professor of Political Economy, Harvard         Trustee, Mellon Institutional
                            University (1972 - present)                                          Funds Investment Trust and
                                                                                                 Mellon Institutional Funds
                                                                                                 Master Portfolio (over-saw 17
                                                                                                 portfolios in fund complex)
                                                                                                 (1989 - 2008)
-------------------------------------------------------------------------------------------------------------------------------
Margaret B.W. Graham (62)   Founding Director, Vice-President and Corporate Secretary, The       None
                            Winthrop Group, Inc. (consulting firm); and Desautels Faculty of
                            Management, McGill University (1999 - present); and Manager
                            of Research Operations and Organizational Learning, Xerox PARC,
                            Xerox's Advance Research Center (1990 - 1994)
-------------------------------------------------------------------------------------------------------------------------------
Thomas J. Perna (59)        Chairman and Chief Executive Officer, Quadriserv, Inc. (technol-     Director, Broadridge Financial
                            ogy products for securities lending industry) (2008 - present);      Solutions, Inc.(2009 -
                            Private investor (2004 - 2008); and Senior Executive Vice Presi-     present); Director,
                            dent, The Bank of New York (financial and securities services)       Quadriserv, Inc. (2005 -
                            (1986 - 2004)                                                        present)
-------------------------------------------------------------------------------------------------------------------------------
Marguerite A. Piret (61)    President and Chief Executive Officer, Newbury, Piret & Company,     Director of New America High
                            Inc. (investment banking firm) (1981 - present)                      Income Fund, Inc. (closed-end
                                                                                                 investment company) (2004 -
                                                                                                 present); Member, Board of
                                                                                                 Governors, Investment Company
                                                                                                 Institute (2000 - 2006)
-------------------------------------------------------------------------------------------------------------------------------
Stephen K. West (81)        Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998 -           Director, The Swiss Helvetia
                            present); Partner, Sullivan & Cromwell LLP (prior to 1998)           Fund, Inc. (closed-end
                                                                                                 investment company); Director,
                                                                                                 AMVESCAP, PLC (investment
                                                                                                 manager) (1997 - 2005)
-------------------------------------------------------------------------------------------------------------------------------


62    Pioneer High Income Trust | Annual Report | 3/31/10


Trust Officers



-------------------------------------------------------------------------
                             Position Held         Length of Service
Name and Age                 with the Trust        and Term of Office
-------------------------------------------------------------------------
                                             
Christopher J. Kelley (45)   Assistant Secretary   Since 2003. Serves
                                                   at the discretion of
                                                   the Board.
-------------------------------------------------------------------------
Mark E. Bradley (50)         Treasurer             Since 2008. Serves
                                                   at the discretion of
                                                   the Board.
-------------------------------------------------------------------------
Luis I. Presutti (45)        Assistant Treasurer   Since 2002. Serves
                                                   at the discretion of
                                                   the Board.
-------------------------------------------------------------------------
Gary Sullivan (52)           Assistant Treasurer   Since 2002. Serves
                                                   at the discretion of
                                                   the Board.
-------------------------------------------------------------------------

Trust Officers

----------------------------------------------------------------------------------------------------------------------
                                                                                                 Other Directorships
Name and Age                 Principal Occupation During Past Five Years                         Held by this Officer
----------------------------------------------------------------------------------------------------------------------
                                                                                           
Christopher J. Kelley (45)   Vice President and Associate General Counsel of Pioneer since       None
                             January 2008 and Assistant Secretary of all of the Pioneer Funds
                             since September 2003; Vice President and Senior Counsel of
                             Pioneer from July 2002 to December 2007
----------------------------------------------------------------------------------------------------------------------
Mark E. Bradley (50)         Vice President - Fund Accounting, Administration and Controller-    None
                             ship Services of Pioneer; and Treasurer of all of the Pioneer
                             Funds since March 2008; Deputy Treasurer of Pioneer from
                             March 2004 to February 2008; Assistant Treasurer of all of the
                             Pioneer Funds from March 2004 to February 2008
----------------------------------------------------------------------------------------------------------------------
Luis I. Presutti (45)        Assistant Vice President - Fund Accounting, Administration and      None
                             Controllership Services of Pioneer; and Assistant Treasurer of all
                             of the Pioneer Funds
----------------------------------------------------------------------------------------------------------------------
Gary Sullivan (52)           Fund Accounting Manager - Fund Accounting, Administration           None
                             and Controllership Services of Pioneer; and Assistant Treasurer
                             of all of the Pioneer Funds
----------------------------------------------------------------------------------------------------------------------


                         Pioneer High Income Trust | Annual Report | 3/31/10
63


Trust Officers (continued)



--------------------------------------------------------------------
                        Position Held         Length of Service
Name and Age            with the Trust        and Term of Office
--------------------------------------------------------------------
                                        
David F. Johnson (30)   Assistant Treasurer   Since 2009. Serves
                                              at the discretion of
                                              the Board.
--------------------------------------------------------------------
Jean M. Bradley (57)    Chief Compliance      Since 2010. Serves
                        Officer               at the discretion of
                                              the Board.
--------------------------------------------------------------------


----------------------------------------------------------------------------------------------------------------
                                                                                           Other Directorships
Name and Age            Principal Occupation During Past Five Years                        Held by this Officer
----------------------------------------------------------------------------------------------------------------
                                                                                     
David F. Johnson (30)   Fund Administration Manager - Fund Accounting, Administration      None
                        and Controllership Services since November 2008 and Assistant
                        Treasurer of all of the Pioneer Funds since January 2009; Client
                        Service Manager - Institutional Investor Services at State Street
                        Bank from March 2003 to March 2007
----------------------------------------------------------------------------------------------------------------
Jean M. Bradley (57)    Chief Compliance Officer of Pioneer and of all the Pioneer Funds   None
                        since March 2010; Director of Adviser and Portfolio Compliance
                        at Pioneer since October 2005; Senior Compliance Officer for
                        Columbia Management Advisers, Inc. from October 2003 to
                        October 2005
----------------------------------------------------------------------------------------------------------------


The outstanding capital stock of PFD, Pioneer and Pioneer Investment Management
Shareholder Services, Inc. ("PIMSS") is indirectly wholly owned by UniCredit
S.p.A. ("UniCredit"), one of the largest banking groups in Italy. Pioneer, the
Trust's investment adviser, provides investment management and financial
services to mutual funds, institutional and other clients.

64    Pioneer High Income Trust | Annual Report | 3/31/10


                            This page for your notes.

                      Pioneer High Income Trust | Annual Report | 3/31/10     65


                            This page for your notes.

66     Pioneer High Income Trust | Annual Report | 3/31/10


                            This page for your notes.

                      Pioneer High Income Trust | Annual Report | 3/31/10     67


                            This page for your notes.

68     Pioneer High Income Trust | Annual Report | 3/31/10


How to Contact Pioneer

We are pleased to offer a variety of convenient ways for you to contact us for
assistance or information.

You can call American Stock Transfer & Trust Company (AST) for:
--------------------------------------------------------------------------------



Account Information                             1-800-710-0935
                                             
Or write to AST:
--------------------------------------------------------------------------------

For                                                     Write to

General inquiries, lost dividend checks,                American Stock
change of address, lost stock certificates,             Transfer & Trust
stock transfer                                          Operations Center
                                                        6201 15th Ave.
                                                        Brooklyn, NY 11219

Dividend reinvestment plan (DRIP)                       American Stock
                                                        Transfer & Trust
                                                        Wall Street Station
                                                        P.O. Box 922
                                                        New York, NY 10269-0560

Website                                                 www.amstock.com


For additional information, please contact your investment advisor or visit our
web site www.pioneerinvestments.com.

The Trust files a complete statement of investments with the Securities and
Exchange Commission for the first and third quarters for each fiscal year on
Form N-Q. Shareowners may view the filed Form N-Q by visiting the Commission's
web site at http://www.sec.gov. The filed form may also be viewed and copied at
the Commission's Public Reference Room in Washington, DC. Information regarding
the operations of the Public Reference Room may be obtained by calling
1-800-SEC-0330.

The Trust's Chief Executive Officer is required by the New York Stock Exchange's
Listing Standards to file annually with the Exchange a certification that he is
not aware of any violation by the Trust of the Exchange's Corporate Governance
Standards applicable to the Trust. The Trust has filed such certification.


ITEM 2. CODE OF ETHICS.

(a) Disclose whether, as of the end of the period covered by the report, the
registrant has adopted a code of ethics that applies to the registrant's
principal executive officer, principal financial officer, principal accounting
officer or controller, or persons performing similar functions, regardless of
whether these individuals are employed by the registrant or a third party.  If
the registrant has not adopted such a code of ethics, explain why it has not
done so.

The registrant has adopted, as of the end of the period covered by this report,
a code of ethics that applies to the registrant's principal executive officer,
principal financial officer, principal accounting officer and controller.

(b) For purposes of this Item, the term "code of ethics" means written standards
that are reasonably designed to deter wrongdoing and to promote:

        (1) Honest and ethical conduct, including the ethical handling of actual
        or apparent conflicts of interest between personal and professional
        relationships;

        (2) Full, fair, accurate, timely, and understandable disclosure in
        reports and documents that a registrant files with, or submits to, the
        Commission and in other public communications made by the registrant;

        (3) Compliance with applicable governmental laws, rules, and
        regulations;

        (4) The prompt internal reporting of violations of the code to an
        appropriate person or persons identified in the code; and

        (5) Accountability for adherence to the code.

(c) The registrant must briefly describe the nature of any amendment, during the
period covered by the report, to a provision of its code of ethics that applies
to the registrant's principal executive officer, principal financial officer,
principal accounting officer or controller, or persons performing similar
functions, regardless of whether these individuals are employed by the
registrant or a third party, and that relates to any element of the code of
ethics definition enumerated in paragraph (b) of this Item. The registrant must
file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless
the registrant has elected to satisfy paragraph (f) of this Item by posting its
code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by
undertaking to provide its code of ethics to any person without charge, upon
request, pursuant to paragraph (f)(3) of this Item.

The registrant has made no amendments to the code of ethics during the period
covered by this report.

(d) If the registrant has, during the period covered by the report, granted a
waiver, including an implicit waiver, from a provision of the code of ethics to
the registrant's principal executive officer, principal financial officer,
principal accounting officer or controller, or persons performing similar
functions, regardless of whether these individuals are employed by the
registrant or a third party, that relates to one or more of the items set forth
in paragraph (b) of this Item, the registrant must briefly describe the nature
of the waiver, the name of the person to whom the waiver was granted, and the
date of the waiver.

Not applicable.

(e) If the registrant intends to satisfy the disclosure requirement under
paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from,
a provision of its code of ethics that applies to the registrant's principal
executive officer, principal financial officer, principal accounting officer or
controller, or persons performing similar functions and that relates to any
element of the code of ethics definition enumerated in paragraph (b) of this
Item by posting such information on its Internet website, disclose the
registrant's Internet address and such intention.

Not applicable.

(f) The registrant must:

        (1) File with the Commission, pursuant to Item 10(a), a copy of its code
        of ethics that applies to the registrant's principal executive officer,
        principal financial officer, principal accounting officer or controller,
        or persons performing similar functions, as an exhibit to its annual
        report on this Form N-CSR;

        (2) Post the text of such code of ethics on its Internet website and
        disclose, in its most recent report on this Form N-CSR, its Internet
        address and the fact that it has posted such code of ethics on its
        Internet website; or

        (3) Undertake in its most recent report on this Form N-CSR to provide to
        any person without charge, upon request, a copy of such code of ethics
        and explain the manner in which such request may be made.
	See Item 10(2)

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

(a) (1)  Disclose that the registrant's board of trustees has determined that
         the registrant either:

    (i)  Has at least one audit committee financial expert serving on its audit
         committee; or

    (ii) Does not have an audit committee financial expert serving on its audit
         committee.

The registrant's Board of Trustees has determined that the registrant has at
least one audit committee financial expert.

    (2) If the registrant provides the disclosure required by paragraph
(a)(1)(i) of this Item, it must disclose the name of the audit committee
financial expert and whether that person is "independent." In order to be
considered "independent" for purposes of this Item, a member of an audit
committee may not, other than in his or her capacity as a member of the audit
committee, the board of trustees, or any other board committee:

    (i)  Accept directly or indirectly any consulting, advisory, or other
         compensatory fee from the issuer; or

    (ii) Be an "interested person" of the investment company as defined in
         Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)).

Ms. Marguerite A. Piret, an independent trustee, is such an audit committee
financial expert.

    (3) If the registrant provides the disclosure required by paragraph (a)(1)
(ii) of this Item, it must explain why it does not have an audit committee
financial expert.

Not applicable.


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

(a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each
of the last two fiscal years for professional services rendered by the principal
accountant for the audit of the registrant's annual financial statements or
services that are normally provided by the accountant in connection with
statutory and regulatory filings or engagements for those fiscal years.

Audit Fees
Fees for audit services provided to the Trust, including
fees associated with the filings to update its Form N-2
and issuance of comfort letters, totaled approximately
$41,600 in 2010 and $41,300 in 2009.

(b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in
each of the last two fiscal years for assurance and related services by the
principal accountant that are reasonably related to the performance of the audit
of the registrant's financial statements and are not reported under
paragraph (a) of this Item. Registrants shall describe the nature of the
services comprising the fees disclosed under this category.

Audit-Related Fees
Audit related fees for the Trust's audit related
services totaled approximately $9,652 and $9,652 in
2010 and 2009, respectively.

(c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of
the last two fiscal years for professional services rendered by the principal
accountant for tax compliance, tax advice, and tax planning. Registrants shall
describe the nature of the services comprising the fees disclosed under this
category.

Tax Fees
Fees for tax compliance services, primarily for tax
returns, totaled approximately $8,290 and $8,290 for
2010 and 2009, respectively.

(d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in
each of the last two fiscal years for products and services provided by the
principal accountant, other than the services reported in paragraphs (a) through
(c) of this Item. Registrants shall describe the nature of the services
comprising the fees disclosed under this category.

All Other Fees
There were no other fees paid in 2010 and 2009.

(e) (1) Disclose the audit committee's pre-approval policies and procedures
described in paragraph (c)(7) of Rule 2-01 of Regulation S-X.

 PIONEER FUNDS
            APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES
                       PROVIDED BY THE INDEPENDENT AUDITOR

                  SECTION I - POLICY PURPOSE AND APPLICABILITY

The Pioneer Funds recognize the importance of maintaining the independence of
their outside auditors. Maintaining independence is a shared responsibility
involving Pioneer Investment Management, Inc ("PIM"), the audit committee and
the independent auditors.

The Funds recognize that a Fund's independent auditors: 1) possess knowledge of
the Funds, 2) are able to incorporate certain services into the scope of the
audit, thereby avoiding redundant work, cost and disruption of Fund personnel
and processes, and 3) have expertise that has value to the Funds. As a result,
there are situations where it is desirable to use the Fund's independent
auditors for services in addition to the annual audit and where the potential
for conflicts of interests are minimal. Consequently, this policy, which is
intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and
procedures to be followed by the Funds when retaining the independent audit firm
to perform audit, audit-related tax and other services under those
circumstances, while also maintaining independence.

Approval of a service in accordance with this policy for a Fund shall also
constitute approval for any other Fund whose pre-approval is required pursuant
to Rule 210.2-01(c)(7)(ii).

In addition to the procedures set forth in this policy, any non-audit services
that may be provided consistently with Rule 210.2-01 may be approved by the
Audit Committee itself and any pre-approval that may be waived in accordance
with Rule 210.2-01(c)(7)(i)(C) is hereby waived.

Selection of a Fund's independent auditors and their compensation shall be
determined by the Audit Committee and shall not be subject to this policy.



                               SECTION II - POLICY

---------------- -------------------------------- -------------------------------------------------
SERVICE           SERVICE CATEGORY DESCRIPTION      SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES
CATEGORY
---------------- -------------------------------- -------------------------------------------------
                                            
I.  AUDIT        Services that are directly       o Accounting research assistance
SERVICES         related to performing the        o SEC consultation, registration
                 independent audit of the Funds     statements, and reporting
                                                  o Tax accrual related matters
                                                  o Implementation of new accounting
                                                    standards
                                                  o Compliance letters (e.g. rating agency
                                                    letters)
                                                  o Regulatory reviews and assistance
                                                    regarding financial matters
                                                  o Semi-annual reviews (if requested)
                                                  o Comfort letters for closed end
                                                    offerings
---------------- -------------------------------- -------------------------------------------------
II.              Services which are not           o AICPA attest and agreed-upon procedures
AUDIT-RELATED    prohibited under Rule            o Technology control assessments
SERVICES         210.2-01(C)(4) (the "Rule")      o Financial reporting control assessments
                 and are related extensions of    o Enterprise security architecture
                 the audit services support the     assessment
                 audit, or use the
                 knowledge/expertise gained
                 from the audit procedures as a
                 foundation to complete the
                 project.  In most cases, if
                 the Audit-Related Services are
                 not performed by the Audit
                 firm, the scope of the Audit
                 Services would likely
                 increase.  The Services are
                 typically well-defined and
                 governed by accounting
                 professional standards (AICPA,
                 SEC, etc.)
---------------- -------------------------------- -------------------------------------------------

 ------------------------------------- ------------------------------------
                                    
   AUDIT COMMITTEE APPROVAL POLICY               AUDIT COMMITTEE
                                                REPORTING POLICY
 ------------------------------------- ------------------------------------
                                    
 o "One-time" pre-approval             o A summary of all such
   for the audit period for all          services and related fees
   pre-approved specific service         reported at each regularly
   subcategories.  Approval of the       scheduled Audit Committee
   independent auditors as               meeting.
   auditors for a Fund shall
   constitute pre approval for
   these services.
 ------------------------------------- ------------------------------------
 o "One-time" pre-approval             o A summary of all such
   for the fund fiscal year within       services and related fees
   a specified dollar limit              (including comparison to
   for all pre-approved                  specified dollar limits)
   specific service subcategories        reported quarterly.

 o Specific approval is
   needed to exceed the
   pre-approved dollar limit for
   these services (see general
   Audit Committee approval policy
   below for details on obtaining
   specific approvals)

 o Specific approval is
   needed to use the Fund's
   auditors for Audit-Related
   Services not denoted as
   "pre-approved", or
   to add a specific service
   subcategory as "pre-approved"
 ------------------------------------- ------------------------------------




                     SECTION III - POLICY DETAIL, CONTINUED

----------------------- --------------------------- -----------------------------------------------
   SERVICE CATEGORY          SERVICE CATEGORY        SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES
                               DESCRIPTION
----------------------- --------------------------- -----------------------------------------------
                                              
III. TAX SERVICES       Services which are not      o Tax planning and support
                        prohibited by the Rule,     o Tax controversy assistance
                        if an officer of the Fund   o Tax compliance, tax returns, excise
                        determines that using the     tax returns and support
                        Fund's auditor to provide   o Tax opinions
                        these services creates
                        significant synergy in
                        the form of efficiency,
                        minimized disruption, or
                        the ability to maintain a
                        desired level of
                        confidentiality.
----------------------- --------------------------- -----------------------------------------------

------------------------------------- -------------------------
  AUDIT COMMITTEE APPROVAL POLICY         AUDIT COMMITTEE
                                          REPORTING POLICY
------------------------------------- -------------------------
------------------------------------- -------------------------
o "One-time" pre-approval             o A summary of
  for the fund fiscal  year             all such services and
  within a specified dollar limit       related fees
  				        (including comparison
  			                to specified dollar
  			                limits) reported
  			                quarterly.

o Specific approval is
  needed to exceed the
  pre-approved dollar limits for
  these services (see general
  Audit Committee approval policy
  below for details on obtaining
  specific approvals)

o Specific approval is
  needed to use the Fund's
  auditors for tax services not
  denoted as pre-approved, or to add a specific
  service subcategory as
  "pre-approved"
------------------------------------- -------------------------




                     SECTION III - POLICY DETAIL, CONTINUED

----------------------- --------------------------- -----------------------------------------------
   SERVICE CATEGORY          SERVICE CATEGORY        SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES
                               DESCRIPTION
----------------------- --------------------------- -----------------------------------------------
                                              
IV.  OTHER SERVICES     Services which are not      o Business Risk Management support
                        prohibited by the Rule,     o Other control and regulatory
A. SYNERGISTIC,         if an officer of the Fund     compliance projects
UNIQUE QUALIFICATIONS   determines that using the
                        Fund's auditor to provide
                        these services creates
                        significant synergy in
                        the form of efficiency,
                        minimized disruption,
                        the ability to maintain a
                        desired level of
                        confidentiality, or where
                        the Fund's auditors
                        posses unique or superior
                        qualifications to provide
                        these services, resulting
                        in superior value and
                        results for the Fund.
----------------------- --------------------------- -----------------------------------------------

--------------------------------------- ------------------------
    AUDIT COMMITTEE APPROVAL POLICY         AUDIT COMMITTEE
                                            REPORTING POLICY
------------------------------------- --------------------------
                                   
o "One-time" pre-approval             o A summary of
  for the fund fiscal year within       all such services and
  a specified dollar limit              related fees
  			               (including comparison
  			                to specified dollar
  				        limits) reported
                                        quarterly.
o Specific approval is
  needed to exceed the
  pre-approved dollar limits for
  these services (see general
  Audit Committee approval policy
  below for details on obtaining
  specific approvals)

o Specific approval is
  needed to use the Fund's
  auditors for "Synergistic" or
  "Unique Qualifications" Other
  Services not denoted as
  pre-approved to the left, or to
  add a specific service
  subcategory as "pre-approved"
------------------------------------- --------------------------




                     SECTION III - POLICY DETAIL, CONTINUED

----------------------- ------------------------- -----------------------------------------------
   SERVICE CATEGORY         SERVICE CATEGORY        SPECIFIC PROHIBITED SERVICE SUBCATEGORIES
                              DESCRIPTION
----------------------- ------------------------- -----------------------------------------------
                                            
PROHIBITED  SERVICES    Services which result     1. Bookkeeping or other services
                        in the auditors losing       related to the accounting records or
                        independence status          financial statements of the audit
                        under the Rule.              client*
                                                  2. Financial information systems design
                                                     and implementation*
                                                  3. Appraisal or valuation services,
                                                     fairness* opinions, or
                                                     contribution-in-kind reports
                                                  4. Actuarial services (i.e., setting
                                                     actuarial reserves versus actuarial
                                                     audit work)*
                                                  5. Internal audit outsourcing services*
                                                  6. Management functions or human
                                                     resources
                                                  7. Broker or dealer, investment
                                                     advisor, or investment banking services
                                                  8. Legal services and expert services
                                                     unrelated to the audit
                                                  9. Any other service that the Public
                                                     Company Accounting Oversight Board
                                                     determines, by regulation, is
                                                     impermissible
----------------------- ------------------------- -----------------------------------------------

------------------------------------------- ------------------------------
     AUDIT COMMITTEE APPROVAL POLICY               AUDIT COMMITTEE
                                                  REPORTING POLICY
------------------------------------------- ------------------------------
o These services are not to be              o A summary of all
  performed with the exception of the(*)      services and related
  services that may be permitted              fees reported at each
  if they would not be subject to audit       regularly scheduled
  procedures at the audit client (as          Audit Committee meeting
  defined in rule 2-01(f)(4)) level           will serve as continual
  the firm providing the service.             confirmation that has
  				              not provided any
                                              restricted services.
------------------------------------------- ------------------------------

--------------------------------------------------------------------------------
GENERAL AUDIT COMMITTEE APPROVAL POLICY:
o For all projects, the officers of the Funds and the Fund's auditors will each
  make an assessment to determine that any proposed projects will not impair
  independence.

o Potential services will be classified into the four non-restricted service
  categories and the "Approval of Audit, Audit-Related, Tax and Other
  Services" Policy above will be applied. Any services outside the specific
  pre-approved service subcategories set forth above must be specifically
  approved by the Audit Committee.

o At least quarterly, the Audit Committee shall review a report summarizing the
  services by service category, including fees, provided by the Audit firm as
  set forth in the above policy.

--------------------------------------------------------------------------------


    (2) Disclose the percentage of services described in each of paragraphs (b)
   through (d) of this Item that were approved by the audit committee pursuant
   to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

Non-Audit Services
Beginning with non-audit service contracts entered into
on or after May 6, 2003, the effective date of the new
SEC pre-approval rules, the Trust's audit committee is
required to pre-approve services to affiliates defined by
SEC rules to the extent that the services are determined
to have a direct impact on the operations or financial
reporting of the Trust. For the years ended March 31,
2010 and 2009, there were no services provided to an
affiliate that required the Trust's audit committee pre-
approval.

(f) If greater than 50 percent, disclose the percentage of hours expended on the
principal accountant's engagement to audit the registrant's financial statements
for the most recent fiscal year that were attributed to work performed by
persons other than the principal accountant's full-time, permanent employees.

N/A

(g) Disclose the aggregate non-audit fees billed by the registrant's accountant
for services rendered to the registrant, and rendered to the registrant's
investment adviser (not including any sub-adviser whose role is primarily
portfolio management and is subcontracted with or overseen by another investment
adviser), and any entity controlling, controlled by, or under common control
with the adviser that provides ongoing services to the registrant for each of
the last two fiscal years of the registrant.

The aggregate non-audit fees for the Trust and affiliates,
as previously defined, totaled approximately $17,942 in
2010 and $17,942 in 2009.

(h) Disclose whether the registrant's audit committee of the board of trustees
has considered whether the provision of non-audit services that were rendered to
the registrant's investment adviser (not including any subadviser whose role is
primarily portfolio management and is subcontracted with or overseen by another
investment adviser), and any entity controlling, controlled by, or under common
control with the investment adviser that provides ongoing services to the
registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of
Rule 2-01 of Regulation S-X is compatible with maintaining the principal
accountant's independence.

The Fund's audit committee of the Board of Trustees has considered
whether the provision of non-audit services that were rendered to the
Affiliates (as defined) that were not pre- approved pursuant to
paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with
maintaining the principal accountant's independence.

Item 5. Audit Committee of Listed Registrants

(a) If the registrant is a listed issuer as defined in Rule 10A-3
under the Exchange Act (17 CFR 240.10A-3), state whether
or not the registrant has a separately-designated standing
audit committee established in accordance with Section
3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)).
If the registrant has such a committee, however designated,
identify each committee member. If the entire board of directors
is acting as the registrants audit committee as specified in
Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)),
so state.

The registrant has a separately-designated standing audit
committe eestablished in accordance with Section
3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)).

(b) If applicable, provide the disclosure required by Rule 10A-3(d)
under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption
from the listing standards for audit committees.

N/A

Item 6. Schedule of Investments.

File Schedule I Investments in securities of unaffiliated issuers
as of the close of the reporting period as set forth in 210.12-
12 of Regulation S-X [17 CFR 210.12-12], unless the schedule is
included as part of the report to shareholders filed under Item
1 of this Form.

Included in Item 1


ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR
CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

A closed-end management investment company that is filing an annual report on
this Form N-CSR must, unless it invests exclusively in non-voting securities,
describe the policies and procedures that it uses to determine how to vote
proxies relating to portfolio securities, including the procedures that the
company uses when a vote presents a conflict between the interests of its
shareholders, on the one hand, and those of the company's investment adviser;
principal underwriter; or any affiliated person (as defined in Section 2(a)(3)
of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules
thereunder) of the company, its investment adviser, or its principal
underwriter, on the other. Include any policies and procedures of the company's
investment adviser, or any other third party, that the company uses, or that are
used on the company's behalf, to determine how to vote proxies relating to
portfolio securities.

		    Proxy Voting Policies and Procedures of
                       Pioneer Investment Management, Inc.

                            VERSION DATED July, 2004

                                    Overview

   Pioneer Investment Management, Inc. ("Pioneer") is a fiduciary that owes
   each of its client's duties of care and loyalty with respect to all
   services undertaken on the client's behalf, including proxy voting. When
   Pioneer has been delegated proxy-voting authority for a client, the duty of
   care requires Pioneer to monitor corporate events and to vote the proxies.
   To satisfy its duty of loyalty, Pioneer must place its client's interests
   ahead of its own and must cast proxy votes in a manner consistent with the
   best interest of its clients. Pioneer will vote all proxies presented in a
   timely manner.

   The Proxy Voting Policies and Procedures are designed to complement
   Pioneer's investment policies and procedures regarding its general
   responsibility to monitor the performance and/or corporate events of
   companies that are issuers of securities held in accounts managed by
   Pioneer. Pioneer's Proxy Voting Policies summarize Pioneer's position on a
   number of issues solicited by companies held by Pioneer's clients. The
   policies are guidelines that provide a general indication on how Pioneer
   would vote but do not include all potential voting scenarios.

   Pioneer's Proxy Voting Procedures detail monitoring of voting, exception
   votes, and review of conflicts of interest and ensure that case-by-case
   votes are handled within the context of the overall guidelines (i.e. best
   interest of client). The overriding goal is that all proxies for US and
   non-US companies that are received promptly will be voted in accordance
   with Pioneer's policies or specific client instructions. All shares in a
   company held by Pioneer-managed accounts will be voted alike, unless a
   client has given us specific voting instructions on an issue or has not
   delegated authority to us or the Proxy Voting Oversight Group determines
   that the circumstances justify a different approach.

   Pioneer does not delegate the authority to vote proxies relating to its
   clients to any of its affiliates, which include other subsidiaries of
   UniCredito.

   Any questions about these policies and procedures should be directed to the
   Proxy Coordinator.

                                       1


                             Proxy Voting Procedures

   Proxy Voting Service
   Pioneer has engaged an independent proxy voting service to assist in the
   voting of proxies. The proxy voting service works with custodians to ensure
   that all proxy materials are received by the custodians and are processed
   in a timely fashion. To the extent applicable, the proxy voting service
   votes all proxies in accordance with the proxy voting policies established
   by Pioneer. The proxy voting service will refer proxy questions to the
   Proxy Coordinator (described below) for instructions under circumstances
   where: (1) the application of the proxy voting guidelines is unclear; (2) a
   particular proxy question is not covered by the guidelines; or (3) the
   guidelines call for specific instructions on a case-by-case basis. The
   proxy voting service is also requested to call to the Proxy Coordinator's
   attention specific proxy questions that, while governed by a guideline,
   appear to involve unusual or controversial issues. Pioneer reserves the
   right to attend a meeting in person and may do so when it determines that
   the company or the matters to be voted on at the meeting are strategically
   important to its clients.

   Proxy Coordinator
   Pioneer's Director of Investment Operations (the "Proxy Coordinator")
   coordinates the voting, procedures and reporting of proxies on behalf of
   Pioneer's clients. The Proxy Coordinator will deal directly with the proxy
   voting service and, in the case of proxy questions referred by the proxy
   voting service, will solicit voting recommendations and instructions from
   the Director of Portfolio Management US or, to the extent applicable,
   investment sub-advisers. The Proxy Coordinator is responsible for ensuring
   that these questions and referrals are responded to in a timely fashion and
   for transmitting appropriate voting instructions to the proxy voting
   service. The Proxy Coordinator is responsible for verifying with the
   Compliance Department whether Pioneer's voting power is subject to any
   limitations or guidelines issued by the client (or in the case of an
   employee benefit plan, the plan's trustee or other fiduciaries).

   Referral Items
   From time to time, the proxy voting service will refer proxy questions to
   the Proxy Coordinator that are described by Pioneer's policy as to be voted
   on a case-by-case basis, that are not covered by Pioneer's guidelines or
   where Pioneer's guidelines may be unclear with respect to the matter to be
   voted on. Under such certain circumstances, the Proxy Coordinator will seek
   a written voting recommendation from the Director of Portfolio Management
   US. Any such recommendation will include: (i) the manner in which the
   proxies should be voted; (ii) the rationale underlying any such decision;
   and (iii) the disclosure of any contacts or communications made between
   Pioneer and any outside parties concerning the proxy proposal prior to the
   time that the voting instructions are provided. In addition, the Proxy
   Coordinator will ask the Compliance Department to review the question for
   any actual or apparent conflicts of interest as described below under
   "Conflicts of

                                       2


   Interest." The Compliance Department will provide a "Conflicts of Interest
   Report," applying the criteria set forth below under "Conflicts of
   Interest," to the Proxy Coordinator summarizing the results of its review.
   In the absence of a conflict of interest, the Proxy Coordinator will vote
   in accordance with the recommendation of the Director of Portfolio
   Management US.

   If the matter presents a conflict of interest for Pioneer, then the Proxy
   Coordinator will refer the matter to the Proxy Voting Oversight Group for a
   decision. In general, when a conflict of interest is present, Pioneer will
   vote according to the recommendation of the Director of Portfolio
   Management US where such recommendation would go against Pioneer's interest
   or where the conflict is deemed to be immaterial. Pioneer will vote
   according to the recommendation of its proxy voting service when the
   conflict is deemed to be material and the Pioneer's internal vote
   recommendation would favor Pioneer's interest, unless a client specifically
   requests Pioneer to do otherwise. When making the final determination as to
   how to vote a proxy, the Proxy Voting Oversight Group will review the
   report from the Director of Portfolio Management US and the Conflicts of
   Interest Report issued by the Compliance Department.

   Conflicts of Interest
   A conflict of interest occurs when Pioneer's interests interfere, or appear
   to interfere with the interests of Pioneer's clients. Occasionally, Pioneer
   may have a conflict that can affect how its votes proxies. The conflict may
   be actual or perceived and may exist when the matter to be voted on
   concerns:

       o      An affiliate of Pioneer,  such as another company  belonging to
              the UniCredito  Italiano  S.p.A.  banking group (a "UniCredito
              Affiliate");

       o      An issuer of a security for which Pioneer acts as a sponsor,
              advisor, manager, custodian, distributor, underwriter, broker, or
              other similar capacity (including those securities specifically
              declared by PGAM to present a conflict of interest for Pioneer);

       o      An issuer of a security for which UniCredito has informed Pioneer
              that a UniCredito Affiliate acts as a sponsor, advisor, manager,
              custodian, distributor, underwriter, broker, or other similar
              capacity; or

       o      A person with whom Pioneer (or any of its affiliates) has an
              existing, material contract or business relationship that was not
              entered into in the ordinary course of Pioneer's business.

       o      Pioneer will abstain from voting with respect to companies
              directly or indirectly owned by UniCredito Italiano Group, unless
              otherwise directed by a client. In addition, Pioneer will inform
              PGAM Global Compliance and the PGAM Independent Directors before
              exercising such rights.

   Any associate involved in the proxy voting process with knowledge of any
   apparent or actual conflict of interest must disclose such conflict to the
   Proxy Coordinator and the Compliance Department. The Compliance Department
   will review each item referred to Pioneer to determine whether an actual or
   potential conflict of interest with Pioneer exists in connection with the
   proposal(s) to be voted upon. The review will be conducted by comparing the
   apparent parties affected by the proxy proposal being

                                       3


   voted upon against the Compliance Department's internal list of interested
   persons and, for any matches found, evaluating the anticipated magnitude
   and possible probability of any conflict of interest being present. For
   each referral item, the determination regarding the presence or absence of
   any actual or potential conflict of interest will be documented in a
   Conflicts of Interest Report to the Proxy Coordinator.

   Securities Lending
   In conjunction with industry standards Proxies are not available to be
   voted when the shares are out on loan through either Pioneer's lending
   program or a client's managed security lending program. However, Pioneer
   will reserve the right to recall lent securities so that they may be voted
   according to the Pioneer's instructions. If a portfolio manager would like
   to vote a block of previously lent shares, the Proxy Coordinator will work
   with the portfolio manager and Investment Operations to recall the
   security, to the extent possible, to facilitate the vote on the entire
   block of shares.

   Share-Blocking

   "Share-blocking" is a market practice whereby shares are sent to a
   custodian (which may be different than the account custodian) for record
   keeping and voting at the general meeting. The shares are unavailable for
   sale or delivery until the end of the blocking period (typically the day
   after general meeting date).

   Pioneer will vote in those countries with "share-blocking." In the event a
   manager would like to sell a security with "share-blocking", the Proxy
   Coordinator will work with the Portfolio Manager and Investment Operations
   Department to recall the shares (as allowable within the market time-frame
   and practices) and/or communicate with executing brokerage firm. A list of
   countries with "share-blocking" is available from the Investment Operations
   Department upon request.

   Record Keeping
   The Proxy Coordinator shall ensure that Pioneer's proxy voting service:

       o   Retains a copy of the proxy statement received (unless the proxy
           statement is available from the SEC's Electronic Data Gathering,
           Analysis, and Retrieval (EDGAR) system);

       o   Retains a record of the vote cast;

       o   Prepares Form N-PX for filing on behalf of each client that is a
           registered investment company; and

       o   Is able to promptly provide Pioneer with a copy of the voting
           record upon its request.

                                       4


   The Proxy Coordinator shall ensure that for those votes that may require
   additional documentation (i.e. conflicts of interest, exception votes and
   case-by-case votes) the following records are maintained:

       o    A record memorializing the basis for each referral vote cast;

       o    A copy of any document created by Pioneer that was material in
            making the decision on how to vote the subject proxy; and

       o    A copy of any conflict notice, conflict consent or any other
            written communication (including emails or other electronic
            communications) to or from the client (or in the case of an
            employee benefit plan, the plan's trustee or other fiduciaries)
            regarding the subject proxy vote cast by, or the vote
            recommendation of, Pioneer.

       o    Pioneer shall maintain the above records in the client's file for a
            period not less than ten (10) years.

     Disclosure
     Pioneer shall take reasonable measures to inform its clients of the process
     or procedures clients must follow to obtain information regarding how
     Pioneer voted with respect to assets held in their accounts. In addition,
     Pioneer shall describe to clients its proxy voting policies and procedures
     and will furnish a copy of its proxy voting policies and procedures upon
     request. This information may be provided to clients through Pioneer's Form
     ADV (Part II) disclosure, by separate notice to the client, or through
     Pioneer's website.

     Proxy Voting Oversight Group
     The members of the Proxy Voting Oversight Group are Pioneer's: Director of
     Portfolio Management US, Head of Investment Operations, and Director of
     Compliance. Other members of Pioneer will be invited to attend meetings and
     otherwise participate as necessary. The Head of Investment Operations will
     chair the Proxy Voting Oversight Group.

     The Proxy Voting Oversight Group is responsible for developing, evaluating,
     and changing (when necessary) Pioneer's Proxy Voting Policies and
     Procedures. The group meets at least annually to evaluate and review these
     policies and procedures and the services of its third-party proxy voting
     service. In addition, the Proxy Voting Oversight Group will meet as
     necessary to vote on referral items and address other business as
     necessary.

     Amendments
     Pioneer may not amend its Proxy Voting Policies And Procedures without the
     prior approval of the Proxy Voting Oversight Group and its corporate
     parent, Pioneer Global Asset Management S.p.A

                                       5


   Proxy Voting Policies
   Pioneer's sole concern in voting proxies is the economic effect of the
   proposal on the value of portfolio holdings, considering both the short-
   and long-term impact. In many instances, Pioneer believes that supporting
   the company's strategy and voting "for" management's proposals builds
   portfolio value. In other cases, however, proposals set forth by management
   may have a negative effect on that value, while some shareholder proposals
   may hold the best prospects for enhancing it. Pioneer monitors developments
   in the proxy-voting arena and will revise this policy as needed.

   All proxies that are received promptly will be voted in accordance with the
   specific policies listed below. All shares in a company held by
   Pioneer-managed accounts will be voted alike, unless a client has given us
   specific voting instructions on an issue or has not delegated authority to
   us. Proxy voting issues will be reviewed by Pioneer's Proxy Voting
   Oversight Group, which consists of the Director of Portfolio Management US,
   the Director of Investment Operations (the Proxy Coordinator), and the
   Director of Compliance.

   Pioneer has established Proxy Voting Procedures for identifying and
   reviewing conflicts of interest that may arise in the voting of proxies.

   Clients may request, at any time, a report on proxy votes for securities
   held in their portfolios and Pioneer is happy to discuss our proxy votes
   with company management. Pioneer retains a proxy voting service to provide
   research on proxy issues and to process proxy votes.

Administrative
   While administrative items appear infrequently in U.S. issuer proxies, they
   are quite common in non-U.S. proxies.

   We will generally support these and similar management proposals:

       o    Corporate name change.

       o    A change of corporate headquarters.

       o    Stock exchange listing.

       o    Establishment of time and place of annual meeting.

       o    Adjournment or postponement of annual meeting.

       o    Acceptance/approval of financial statements.

       o    Approval of dividend payments, dividend reinvestment plans and other
            dividend-related proposals.

       o    Approval of minutes and other formalities.

                                       6


       o    Authorization of the transferring of reserves and allocation of
            income.

       o    Amendments to authorized signatories.

       o    Approval of accounting method changes or change in fiscal year-end.

       o    Acceptance of labor agreements.

       o    Appointment of internal auditors.

   Pioneer will vote on a case-by-case basis on other routine business;
   however, Pioneer will oppose any routine business proposal if insufficient
   information is presented in advance to allow Pioneer to judge the merit of
   the proposal. Pioneer has also instructed its proxy voting service to
   inform Pioneer of its analysis of any administrative items inconsistent, in
   its view, with supporting the value of Pioneer portfolio holdings so that
   Pioneer may consider and vote on those items on a case-by-case basis.

Auditors
     We normally vote for proposals to:

       o    Ratify the auditors. We will consider a vote against if we are
            concerned about the auditors' independence or their past work for
            the company. Specifically, we will oppose the ratification of
            auditors and withhold votes from audit committee members if
            non-audit fees paid by the company to the auditing firm exceed the
            sum of audit fees plus audit-related fees plus permissible tax
            fees according to the disclosure categories proposed by the
            Securities and Exchange Commission.

       o    Restore shareholder rights to ratify the auditors.

     We will normally oppose proposals that require companies to:

       o    Seek bids from other auditors.

       o    Rotate auditing firms, except where the rotation is statutorily
            required or where rotation would demonstrably strengthen financial
            disclosure.

       o    Indemnify auditors.

       o    Prohibit auditors from engaging in non-audit services for the
            company.

     Board of Directors
     On issues related to the board of directors, Pioneer normally supports
     management. We will, however, consider a vote against management in
     instances where corporate performance has been very poor or where the board
     appears to lack independence.

                                       7


     General Board Issues
     Pioneer will vote for:

       o    Audit, compensation and nominating committees composed of
            independent directors exclusively.

       o    Indemnification for directors for actions taken in good faith in
            accordance with the business judgment rule. We will vote against
            proposals for broader indemnification.

       o    Changes in board size that appear to have a legitimate business
            purpose and are not primarily for anti-takeover reasons.

       o    Election of an honorary director.

     We will vote against:

       o    Minimum stock ownership by directors.

       o    Term limits for directors. Companies benefit from experienced
            directors, and shareholder control is better achieved through
            annual votes.

       o    Requirements for union or special interest representation on the
            board.

       o    Requirements to provide two candidates for each board seat.

     We will vote on a case-by case basis on these issues:

       o    Separate chairman and CEO positions. We will consider voting with
            shareholders on these issues in cases of poor corporate
            performance.

     Elections of Directors
     In uncontested elections of directors we will vote against:

       o    Individual directors with absenteeism above 25% without valid
            reason. We support proposals that require disclosure of director
            attendance.

       o    Insider directors and affiliated outsiders who sit on the audit,
            compensation, stock option or nominating committees. For the
            purposes of our policy, we accept the definition of affiliated
            directors provided by our proxy voting service.

     We will also vote against:

       o    Directors who have failed to act on a takeover offer where the
            majority of shareholders have tendered their shares.

       o    Directors who appear to lack independence or are associated with
            very poor corporate performance.

                                       8


     We will vote on a case-by case basis on these issues:

       o    Re-election of directors who have implemented or renewed a
            dead-hand or modified dead-hand poison pill (a "dead-hand poison
            pill" is a shareholder rights plan that may be altered only by
            incumbent or "dead " directors. These plans prevent a potential
            acquirer from disabling a poison pill by obtaining control of the
            board through a proxy vote).

       o    Contested election of directors.

       o    Prior to phase-in required by SEC, we would consider supporting
            election of a majority of independent directors in cases of poor
            performance.

       o    Mandatory retirement policies.

       o    Directors who have ignored a shareholder proposal that has been
            approved by shareholders for two consecutive years.

     Takeover-Related Measures
     Pioneer is generally opposed to proposals that may discourage takeover
     attempts. We believe that the potential for a takeover helps ensure that
     corporate performance remains high.

     Pioneer will vote for:

       o    Cumulative voting.

       o    Increase ability for shareholders to call special meetings.

       o    Increase ability for shareholders to act by written consent.

       o    Restrictions on the ability to make greenmail payments.

       o    Submitting rights plans to shareholder vote.

       o    Rescinding shareholder rights plans ("poison pills").

       o    Opting out of the following state takeover statutes:

     o Control share acquisition statutes, which deny large holders voting
       rights on holdings over a specified threshold.

     o Control share cash-out provisions, which require large holders to
       acquire shares from other holders.

     o Freeze-out provisions, which impose a waiting period on large
       holders before they can attempt to gain control.

     o Stakeholder laws, which permit directors to consider interests of
       non-shareholder constituencies.

                                       9


     o Disgorgement provisions, which require acquirers to disgorge profits
       on purchases made before gaining control.

     o Fair price provisions.

     o Authorization of shareholder rights plans.

     o Labor protection provisions.

     o Mandatory classified boards.

     We will vote on a case-by-case basis on the following issues:

       o    Fair price provisions. We will vote against provisions requiring
            supermajority votes to approve takeovers. We will also consider
            voting against proposals that require a supermajority vote to
            repeal or amend the provision. Finally, we will consider the
            mechanism used to determine the fair price; we are generally
            opposed to complicated formulas or requirements to pay a premium.

       o    Opting out of state takeover statutes regarding fair price
            provisions. We will use the criteria used for fair price
            provisions in general to determine our vote on this issue.

       o    Proposals that allow shareholders to nominate directors.

     We will vote against:

       o    Classified boards, except in the case of closed-end mutual funds.

       o    Limiting shareholder ability to remove or appoint directors. We
            will support proposals to restore shareholder authority in this
            area. We will review on a case-by-case basis proposals that
            authorize the board to make interim appointments.

       o    Classes of shares with unequal voting rights.

       o    Supermajority vote requirements.

       o    Severance packages ("golden" and "tin" parachutes). We will support
            proposals to put these packages to shareholder vote.

       o    Reimbursement of dissident proxy solicitation expenses. While we
            ordinarily support measures that encourage takeover bids, we
            believe that management should have full control over corporate
            funds.

       o    Extension of advance notice requirements for shareholder proposals.

       o    Granting board authority normally retained by shareholders (e.g.,
            amend charter, set board size).

       o    Shareholder rights plans ("poison pills"). These plans generally
            allow shareholders to buy additional shares at a below-market
            price in the event of a change in control and may deter some bids.

                                       10


     Capital Structure
     Managements need considerable flexibility in determining the company's
     financial structure, and Pioneer normally supports managements' proposals
     in this area. We will, however, reject proposals that impose high barriers
     to potential takeovers.

     Pioneer will vote for:

       o    Changes in par value.

       o    Reverse splits, if accompanied by a reduction in number of shares.

       o    Share repurchase programs, if all shareholders may participate on
            equal terms.

       o    Bond issuance.

       o    Increases in "ordinary" preferred stock.

       o    Proposals to have blank-check common stock placements (other than
            shares issued in the normal course of business) submitted for
            shareholder approval.

       o    Cancellation of company treasury shares.

     We will vote on a case-by-case basis on the following issues:

       o    Reverse splits not accompanied by a reduction in number of shares,
            considering the risk of delisting.

       o    Increase in authorized common stock. We will make a determination
            considering, among other factors:

     o Number of shares currently available for issuance;

     o Size of requested increase (we would normally approve increases of up to
       100% of current authorization);

     o Proposed use of the additional shares; and

     o Potential consequences of a failure to increase the number of shares
       outstanding (e.g., delisting or bankruptcy).

       o    Blank-check preferred. We will normally oppose issuance of a new
            class of blank-check preferred, but may approve an increase in a
            class already outstanding if the company has demonstrated that it
            uses this flexibility appropriately.

       o    Proposals to submit private placements to shareholder vote.

       o    Other financing plans.

     We will vote against preemptive rights that we believe limit a company's
financing flexibility.

                                      11


     Compensation
     Pioneer supports compensation plans that link pay to shareholder returns
     and believes that management has the best understanding of the level of
     compensation needed to attract and retain qualified people. At the same
     time, stock-related compensation plans have a significant economic impact
     and a direct effect on the balance sheet. Therefore, while we do not want
     to micromanage a company's compensation programs, we will place limits on
     the potential dilution these plans may impose.

     Pioneer will vote for:

       o    401(k) benefit plans.

       o    Employee stock ownership plans (ESOPs), as long as shares
            allocated to ESOPs are less than 5% of outstanding shares. Larger
            blocks of stock in ESOPs can serve as a takeover defense. We will
            support proposals to submit ESOPs to shareholder vote.

       o    Various issues related to the Omnibus Budget and Reconciliation Act
            of 1993 (OBRA), including:

     o Amendments to performance plans to conform with OBRA;

     o Caps on annual grants or amendments of administrative features;

     o Adding performance goals; and

     o Cash or cash-and-stock bonus plans.

       o    Establish a process to link pay, including stock-option grants, to
            performance, leaving specifics of implementation to the company.

       o    Require that option repricings be submitted to shareholders.

       o    Require the expensing of stock-option awards.

       o    Require reporting of executive retirement benefits (deferred
            compensation, split-dollar life insurance, SERPs, and pension
            benefits).

       o    Employee stock purchase plans where the purchase price is equal to
            at least 85% of the market price, where the offering period is no
            greater than 27 months and where potential dilution (as defined
            below) is no greater than 10%.

                                       12


     We will vote on a case-by-case basis on the following issues:

       o    Executive and director stock-related compensation plans. We will
            consider the following factors when reviewing these plans:

       o    The program must be of a reasonable size. We will approve plans
            where the combined employee and director plans together would
            generate less than 15% dilution. We will reject plans with 15% or
            more potential dilution.

            Dilution = (A + B + C) / (A + B + C + D), where

            A = Shares reserved for plan/amendment,

            B = Shares available under continuing plans,

            C = Shares granted but unexercised and

            D = Shares outstanding.

       o    The plan must not:

            o   Explicitly permit unlimited option repricing authority or that
                have repriced in the past without shareholder approval.

            o   Be a self-replenishing "evergreen" plan, plans that grant
                discount options and tax offset payments.

     o We are generally in favor of proposals that increase participation beyond
       executives.

     o We generally support proposals asking companies to adopt rigorous
       vesting provisions for stock option plans such as those that vest
       incrementally over, at least, a three- or four-year period with a pro
       rata portion of the shares becoming exercisable on an annual basis
       following grant date.

     o We generally support proposals asking companies to disclose their
       window period policies for stock transactions. Window period policies
       ensure that employees do not exercise options based on insider
       information contemporaneous with quarterly earnings releases and other
       material corporate announcements.

     o We generally support proposals asking companies to adopt stock holding
       periods for their executives.

       o    All other employee stock purchase plans.

       o    All other compensation-related proposals, including deferred
            compensation plans, employment agreements, loan guarantee programs
            and retirement plans.

       o    All other proposals regarding stock compensation plans, including
            extending the life of a plan, changing vesting restrictions,
            repricing options, lengthening exercise periods or accelerating
            distribution of awards and pyramiding and cashless exercise
            programs.

                                       13


     We will vote against:

       o    Pensions for non-employee directors. We believe these retirement
            plans reduce director objectivity.

       o    Elimination of stock option plans.

     We will vote on a case-by case basis on these issues:

       o    Limits on executive and director pay.

       o    Stock in lieu of cash compensation for directors.

     Corporate Governance
     Pioneer will vote for:

       o    Confidential Voting.

       o    Equal access provisions, which allow shareholders to contribute
            their opinion to proxy materials.

       o    Proposals requiring directors to disclose their ownership of shares
            in the company.

     We will vote on a case-by-case basis on the following issues:

       o    Change in the state of incorporation. We will support
            reincorporations supported by valid business reasons. We will
            oppose those that appear to be solely for the purpose of
            strengthening takeover defenses.

       o    Bundled proposals. We will evaluate the overall impact of the
            proposal.

       o    Adopting or amending the charter, bylaws or articles of association.

       o    Shareholder appraisal rights, which allow shareholders to demand
            judicial review of an acquisition price.

     We will vote against:

       o    Shareholder advisory committees. While management should solicit
            shareholder input, we prefer to leave the method of doing so to
            management's discretion.

       o    Limitations on stock ownership or voting rights.

       o    Reduction in share ownership disclosure guidelines.

                                       14


     Mergers and Restructurings
     Pioneer will vote on the following and similar issues on a case-by-case
     basis:

       o    Mergers and acquisitions.

       o    Corporate restructurings, including spin-offs, liquidations, asset
            sales, joint ventures, conversions to holding company and
            conversions to self-managed REIT structure.

       o    Debt restructurings.

       o    Conversion of securities.

       o    Issuance of shares to facilitate a merger.

       o    Private placements, warrants, convertible debentures.

       o    Proposals requiring management to inform shareholders of merger
            opportunities.

     We will normally vote against shareholder proposals requiring that the
     company be put up for sale.

     Mutual Funds
     Many of our portfolios may invest in shares of closed-end mutual funds or
     exchange-traded funds. The non-corporate structure of these investments
     raises several unique proxy voting issues.

     Pioneer will vote for:

       o    Establishment of new classes or series of shares.

       o    Establishment of a master-feeder structure.

     Pioneer will vote on a case-by-case on:

       o    Changes in investment policy. We will normally support changes
            that do not affect the investment objective or overall risk level
            of the fund. We will examine more fundamental changes on a
            case-by-case basis.

       o    Approval of new or amended advisory contracts.

       o    Changes from closed-end to open-end format.

       o    Authorization for, or increase in, preferred shares.

       o    Disposition of assets, termination, liquidation, or mergers.

       o    Classified boards of closed-end mutual funds, but will typically
            support such proposals.

                                       15


     Social Issues
     Pioneer will abstain on stockholder proposals calling for greater
     disclosure of corporate activities with regard to social issues. "Social
     Issues" may generally be described as shareholder proposals for a company
     to:

       o    Conduct studies regarding certain issues of public concern and
            interest;

       o    Study the feasibility of the company taking certain actions with
            regard to such issues; or

       o    Take specific action, including ceasing certain behavior and
            adopting company standards and principles, in relation to issues
            of public concern and interest.

     We believe these issues are important and should receive management
     attention.

     Pioneer will vote against proposals calling for substantial changes in the
     company's business or activities. We will also normally vote against
     proposals with regard to contributions, believing that management should
     control the routine disbursement of funds.

                                       16


Item 8. Portfolio Managers of Closed-End Management Investment
        Companies.

(a) If the registrant is a closed-end management investment company that
is filing an annual report on this Form N-CSR,provide the following
information:
(1) State the name, title, and length of service of the person or persons
employed by or associated with the registrant or an investment adviser
of the registrant who are primarily responsible for the day-to-day management
of the registrants portfolio (Portfolio Manager). Also state each Portfolio
Managers business experience during the past 5 years.

Additional Information About the Portfolio Managers

Other Accounts Managed by the Portfolio Managers. The table below indicates, for
the portfolio manager of the fund, information about the accounts other than the
fund over which the portfolio manager has day-to-day investment responsibility.
All information on the number of accounts and total assets in the table is as of
March 31, 2010. For purposes of the table, "Other Pooled Investment Vehicles"
may include investment partnerships, undertakings for collective investments in
transferable securities ("UCITS") and other non-U.S. investment funds and group
trusts, and "Other Accounts" may include separate accounts for institutions or
individuals, insurance company general or separate accounts, pension funds and
other similar institutional accounts but generally do not include the portfolio
manager's personal investment accounts or those which the manager may be deemed
to own beneficially under the code of ethics. Certain funds and other accounts
managed by the portfolio manager may have substantially similar investment
strategies.

                                                                                         

--------------------- -------------------- ----------------- ------------------- ------------------ -------------------
Name of Portfolio     Type of Account      Number of         Total Assets        Number of          Assets Managed
Manager                                    Accounts Managed  Managed             Accounts Managed   for which
                                                                                 for which          Advisory Fee is
                                                                                 Advisory Fee is    Performance-Based
                                                                                 Performance-Based
--------------------- -------------------- ----------------- ------------------- ------------------ -------------------
--------------------- -------------------- ----------------- ------------------- ------------------ -------------------
Andrew Feltus         Other Registered     6                 $5,904,343,000      N/A                N/A
                      Investment
                      Companies
                      -------------------- ----------------- ------------------- ------------------ -------------------
                      -------------------- ----------------- ------------------- ------------------ -------------------
                      Other Pooled         4                 $1,599,932,000      N/A                N/A
                      Investment Vehicles
                      -------------------- ----------------- ------------------- ------------------ -------------------
                      -------------------- ----------------- ------------------- ------------------ -------------------
                      Other Accounts       1                 $335,242,000        N/A                N/A
--------------------- -------------------- ----------------- ------------------- ------------------ -------------------



Potential Conflicts of Interest. When a portfolio manager is responsible for the
management of more than one account, the potential arises for the portfolio
manager to favor one account over another. The principal types of potential
conflicts of interest that may arise are discussed below. For the reasons
outlined below, Pioneer does not believe that any material conflicts are likely
to arise out of a portfolio manager's responsibility for the management of the
fund as well as one or more other accounts. Although Pioneer has adopted
procedures that it believes are reasonably designed to detect and prevent
violations of the federal securities laws and to mitigate the potential for
conflicts of interest to affect its portfolio management decisions, there can be
no assurance that all conflicts will be identified or that all procedures will
be effective in mitigating the potential for such risks. Generally, the risks of
such conflicts of interest are increased to the extent that a portfolio manager
has a financial incentive to favor one account over another. Pioneer has
structured its compensation arrangements in a manner that is intended to limit
such potential for conflicts of interest. See "Compensation of Portfolio
Managers" below.

     o    A portfolio manager could favor one account over another in allocating
          new investment opportunities that have limited supply, such as initial
          public offerings and private  placements.  If, for example, an initial
          public offering that was expected to appreciate in value significantly
          shortly  after the offering was  allocated to a single  account,  that
          account may be expected to have  better  investment  performance  than
          other  accounts  that did not  receive an  allocation  of the  initial
          public  offering.  Generally,  investments  for which there is limited
          availability  are  allocated  based upon a range of factors  including
          available  cash  and   consistency   with  the  accounts'   investment
          objectives  and  policies.  This  allocation  methodology  necessarily
          involves some  subjective  elements but is intended over time to treat
          each client in an equitable and fair manner. Generally, the investment
          opportunity is allocated  among  participating  accounts on a pro rata
          basis.  Although  Pioneer  believes that its practices are  reasonably
          designed to treat each client in an equitable  and fair manner,  there
          may be instances where a fund may not participate,  or may participate
          to a  lesser  degree  than  other  clients,  in the  allocation  of an
          investment opportunity.

     o    A portfolio  manager could favor one account over another in the order
          in which trades for the accounts  are placed.  If a portfolio  manager
          determines  to  purchase  a security  for more than one  account in an
          aggregate  amount that may influence the market price of the security,
          accounts that  purchased or sold the security first may receive a more
          favorable price than accounts that made subsequent  transactions.  The
          less liquid the market for the security or the greater the  percentage
          that the proposed  aggregate  purchases or sales  represent of average
          daily trading volume, the greater the potential for accounts that make
          subsequent  purchases or sales to receive a less favorable price. When
          a portfolio manager intends to trade the same security on the same day
          for more than one account,  the trades  typically are "bunched," which
          means that the trades for the  individual  accounts are aggregated and
          each account receives the same price. There are some types of accounts
          as to which bunching may not be possible for contractual reasons (such
          as  directed  brokerage  arrangements).  Circumstances  may also arise
          where the trader  believes  that bunching the orders may not result in
          the best possible  price.  Where those accounts or  circumstances  are
          involved,  Pioneer will place the order in a manner intended to result
          in as favorable a price as possible for such client.

     o    A portfolio manager could favor an account if the portfolio  manager's
          compensation  is tied to the  performance of that account to a greater
          degree than other accounts managed by the portfolio  manager.  If, for
          example,  the  portfolio  manager  receives  a bonus  based  upon  the
          performance of certain  accounts  relative to a benchmark  while other
          accounts are disregarded for this purpose,  the portfolio manager will
          have a financial incentive to seek to have the accounts that determine
          the portfolio manager's bonus achieve the best possible performance to
          the  possible  detriment  of other  accounts.  Similarly,  if  Pioneer
          receives a  performance-based  advisory fee, the portfolio manager may
          favor that  account,  whether or not the  performance  of that account
          directly determines the portfolio manager's compensation.

     o    A portfolio  manager could favor an account if the  portfolio  manager
          has a beneficial  interest in the account, in order to benefit a large
          client or to compensate a client that had poor  returns.  For example,
          if the portfolio manager held an interest in an investment partnership
          that was one of the accounts  managed by the  portfolio  manager,  the
          portfolio  manager  would  have an  economic  incentive  to favor  the
          account in which the portfolio manager held an interest.

     o    If the different accounts have materially and potentially  conflicting
          investment  objectives  or  strategies,  a conflict of interest  could
          arise. For example,  if a portfolio  manager  purchases a security for
          one account and sells the same  security  for  another  account,  such
          trading  pattern may  disadvantage  either the account that is long or
          short. In making portfolio manager assignments, Pioneer seeks to avoid
          such potentially  conflicting  situations.  However, where a portfolio
          manager  is  responsible   for  accounts  with  differing   investment
          objectives  and policies,  it is possible  that the portfolio  manager
          will conclude that it is in the best interest of one account to sell a
          portfolio security while another account continues to hold or increase
          the holding in such security.



Compensation of Portfolio Managers. Pioneer has adopted a system of compensation
for portfolio managers that seeks to align the financial interests of the
portfolio managers with those of shareholders of the accounts (including Pioneer
funds) the portfolio managers manage, as well as with the financial performance
of Pioneer. The compensation program for all Pioneer portfolio managers includes
a base salary (determined by the rank and tenure of the employee) and an annual
bonus program, as well as customary benefits that are offered generally to all
full-time employees. Base compensation is fixed and normally reevaluated on an
annual basis. Pioneer seeks to set base compensation at market rates, taking
into account the experience and responsibilities of the portfolio manager. The
bonus plan is intended to provide a competitive level of annual bonus
compensation that is tied to the portfolio manager achieving superior investment
performance and align the interests of the investment professional with those of
shareholders, as well as with the financial performance of Pioneer. Any bonus
under the plan is completely discretionary, with a maximum annual bonus that may
be in excess of base salary. The annual bonus is based upon a combination of the
following factors:

     o    Quantitative  Investment  Performance.   The  quantitative  investment
          performance  calculation is based on pre-tax investment performance of
          all of the accounts  managed by the portfolio  manager (which includes
          the fund and any other accounts managed by the portfolio manager) over
          a  one-year   period  (20%   weighting)  and  four-year   period  (80%
          weighting),  measured for periods ending on December 31. The accounts,
          which  include the fund,  are ranked  against a group of mutual  funds
          with similar  investment  objectives and investment  focus (60%) and a
          broad-based  securities  market index measuring the performance of the
          same type of securities in which the accounts invest (40%),  which, in
          the case of the fund, is the Bank of America  Merrill Lynch High Yield
          Master II Index. As a result of these two benchmarks,  the performance
          of the portfolio manager for compensation purposes is measured against
          the criteria that are relevant to the portfolio manager's  competitive
          universe.

     o    Qualitative  Performance.  The qualitative  performance component with
          respect  to all of  the  accounts  managed  by the  portfolio  manager
          includes  objectives,  such as effectiveness in the areas of teamwork,
          leadership,   communications   and   marketing,   that  are   mutually
          established and evaluated by each portfolio manager and management.

     o    Pioneer  Results  and  Business  Line  Results.   Pioneer's  financial
          performance,  as well as the investment  performance of its investment
          management  group,  affect a  portfolio  manager's  actual  bonus by a
          leverage factor of plus or minus (+/-) a predetermined percentage.

The quantitative and qualitative performance components comprise 80% and 20%,
respectively, of the overall bonus calculation (on a pre-adjustment basis). A
portion of the annual bonus is deferred for a specified period and may be
invested in one or more Pioneer funds.

Certain portfolio managers may participate in other programs designed to reward
and retain key contributors. Senior executives or other key employees may be
granted performance units based on the stock price performance of UniCredit and
the financial performance of Pioneer Global Asset Management S.p.A., which are
affiliates of Pioneer. Portfolio managers also may participate in a deferred
compensation program, whereby deferred amounts are invested in one or more
Pioneer funds.


Share Ownership by Portfolio Manager. The following table indicates as of March
31, 2010 the value, within the indicated range, of shares beneficially owned by
the portfolio manager of the fund.

                                                       

--------------------------------------- -----------------------------------------------------------------
Name of Portfolio Manager               Beneficial Ownership of the Fund*
--------------------------------------- -----------------------------------------------------------------
--------------------------------------- -----------------------------------------------------------------
Andrew Feltus                           C
--------------------------------------- -----------------------------------------------------------------



*Key to Dollar Ranges

A. None
B. $1 - $10,000
C. $10,001 - $50,000
D. $50,001 - $100,000
E. $100,001 - $500,000
F. $500,001 - $1,000,000
G. Over $1,000,000


Item 9. Purchases of Equity Securities by Closed-End Management
Investment Company and Affiliated Purchasers.

(a) If the registrant is a closed-end management investment company,
in the following tabular format, provide the information specified in
paragraph (b) of this Item with respect to any purchase made by or on
behalf of the registrant or any affiliated purchaser, as defined in
Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of
shares or other units of any class of the registrants equity securities
that is registered by the registrant pursuant to Section 12 of the
Exchange Act (15 U.S.C. 781). Instruction to paragraph (a). Disclose
all purchases covered by this Item, including purchases that do not
satisfy the conditions of the safe harbor of Rule 10b-18 under the
Exchange Act (17 CFR 240.10b-18), made in the period covered by the
report. Provide disclosures covering repurchases made on a monthly basis.
For example, if the reporting period began on January 16 and ended on
July 15, the chart would show repurchases for the months from January 16
through February 15, February 16 through March 15, March 16 through
April 15, April 16 through May 15, May 16 through June 15, and June 16
through July 15.

During the period covered by this report, there were no purchases
made by or on behalf of the registrant or any affiliated purchaser
as defined in Rule 10b-18(a)(3) under the Securities Exchange Act
of 1934 (the Exchange Act), of shares of the registrants equity
securities that are registered by the registrant pursuant to
Section 12 of the Exchange Act.


Item 10. Submission of Matters to a Vote of Security Holders.

Describe any material changes to the procedures by which shareholders
may recommend nominees to the registrants board of directors, where
those changes were implemented after the registrant last provided
disclosure in response to the requirements of Item 7(d)(2)(ii)(G)
of Schedule 14A (17 CFR 240.14a-101), or this Item.


There have been no material changes to the procedures by which the
shareholders may recommend nominees to the registrants board of
directors since the registrant last provided disclosure in response
to the requirements of Item 7(d)(2)(ii)(G) of Schedule 14(A) in
its definitive proxy statement, or this Item.


ITEM 11. CONTROLS AND PROCEDURES.

(a) Disclose the conclusions of the registrant's principal executive officer or
officers and principal financial officer or officers, or persons performing
similar functions, about the effectiveness of the registrant's disclosure
controls and procedures (as defined in Rule 30a-2(c) under the Act (17 CFR
270.30a-2(c))) based on their evaluation of these controls and procedures as of
a date within 90 days of the filing date of the report that includes the
disclosure required by this paragraph.

The registrant's principal executive officer
and principal financial officer have
concluded that the registrant's disclosure
controls and procedures are effective based
on their evaluation of these controls and
procedures as of a date within 90 days of the
filing date of this report.


(b) Disclose whether or not there were significant changes in the registrant's
internal controls or in other factors that could significantly affect these
controls subsequent to the date of their evaluation, including any corrective
actions with regard to significant deficiencies and material weaknesses.

There were no significant changes in the
registrant's internal control over financial
reporting that occurred during the second
fiscal quarter of the period covered by this
report that have materially affected, or are
reasonably likely to materially affect, the
registrant's internal control over financial
reporting.

The registrant's principal executive officer and principal financial
officer, however, voluntarily are reporting the following information:

In August of 2006 the registrant's investment adviser
enhanced its internal procedures for reporting performance
information required to be included in prospectuses.
Those enhancements involved additional internal controls
over the appropriateness of performance data
generated for this purpose.  Such enhancements were made
following an internal review which identified
prospectuses relating to certain classes of shares of
a limited number of registrants where, inadvertently,
performance information not reflecting the deduction of
applicable sales charges was included. Those prospectuses
were revised, and the revised prospectuses were distributed to
shareholders.


ITEM 12. EXHIBITS.

File the exhibits listed below as part of this Form. Letter or number the
exhibits in the sequence indicated.

(a) Any code of ethics, or amendment thereto, that is the subject of the
disclosure required by Item 2, to the extent that the registrant intends to
satisfy the Item 2 requirements through filing of an exhibit.



(b) A separate certification for each principal executive officer and principal
financial officer of the registrant as required by Rule 30a-2 under the Act
(17 CFR 270.30a-2).

Filed herewith.





                                   SIGNATURES

                          [See General Instruction F]


Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.


(Registrant) Pioneer High Income Trust


By (Signature and Title)* /s/ John F. Cogan, Jr.
John F. Cogan, Jr, President

Date May 28, 2010


Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.


By (Signature and Title)* /s/ John F. Cogan, Jr.
John F. Cogan, Jr., President

Date May 28, 2010


By (Signature and Title)* /s/ Mark Bradley
Mark Bradley, Treasurer

Date May 28, 2010

* Print the name and title of each signing officer under his or her signature.