Pioneer Investments Declares Monthly Distributions for Closed-End Funds

Pioneer Investments today announced the declaration of dividends for six closed-end funds for December 2007. The closing market price, annualized distribution rate and NAV distribution rate are based on data as of December 4, 2007.

Ex Date: December 10, 2007
Record Date: December 12, 2007
Payable Date: December 20, 2007

Fund

Distribution

Market Price

Market Price Distribution Rate

NAV

NAV Distribution Rate

Pioneer High Income Trust (NYSE: PHT) $0.1375 $15.85 10.41% $15.24 10.83%
Pioneer Municipal High Income Trust (NYSE: MHI) $0.0700(a) $14.04 5.98% $15.24 5.51%
Pioneer Municipal High Income Advantage Trust (NYSE: MAV)

$0.0750(b)

$14.23 6.32% $15.03 5.99%
Pioneer Floating Rate Trust (NYSE: PHD) $0.3186(c) $16.61 10.48%(d) $18.11 9.61%(d)
Pioneer Municipal and Equity Income Trust (NYSE: PBF) $0.1120(e) $13.40 10.03% $14.76 9.10%
Pioneer Diversified High Income Trust (AMEX: HNW) $0.1980 $19.88 11.95% $22.93 10.36%

(a)The distribution for MHI contains approx. $0.0248 per share of taxable income. This is a one-time taxable distribution in 2007.

(b)The distribution for MAV contains approx. $0.0288 per share of taxable income. This is a one-time taxable distribution in 2007.

(c)Includes one-time additional ordinary income distribution of $0.1736.

(d)Distribution rates reflect distribution of $0.1450, which excludes the one-time additional ordinary income distribution of $0.1736.

(e)At this time PBF believes that a portion of this distribution may include a return of capital, in addition to net investment income and long-term capital gains. A return of capital is not a distribution of income or capital gains from the fund, does not necessarily reflect the fund's investment performance and should not be considered "yield" or "income." Further information on the composition of the distribution will be made available on the payment date and will be available at www.pioneerinvestments.com. The final determination of tax characteristics of the funds distributions will occur after the end of the year, at which time it will be reported to shareholders.

Capital Gain Distributions

High Income Trust (NYSE: PHT): Short Term Capital Gains: $0.0507/share
Long Term Capital Gains: $0.3988/share
Floating Rate Trust (NYSE: PHD): Short Term Capital Gains: $0.2213/share
Long Term Capital Gains: $0.1267/share

Tax-Equivalent Distribution Rate at Market Price

Tax-Equivalent Distribution Rate at NAV

Pioneer Municipal High Income Trust (NYSE: MHI) 9.20% 8.48%
Pioneer Municipal High Income Advantage Trust (NYSE: MAV) 9.72% 9.22%
Pioneer Tax Advantaged Balanced Trust (NYSE: PBF) 13.99% 12.71%

Tax-Equivalent Distribution Rate is computed based on the estimated effective tax rate of the fund as of 9/30/2007.

The funds are closed-end investment companies. Five funds trade on the New York Stock Exchange (NYSE): PHT, MHI, MAV, PHD and PBF. One fund trades on the American Stock Exchange (AMEX): HNW. Pioneer Investment Management, Inc. is each funds investment adviser.

Shareholder Inquiries: Please contact your financial advisor or visit www.pioneerinvestments.com.

Broker/Advisor Inquiries Please Contact: 800-622-9876

Media Inquiries Please Contact:

Geoff Smith

Tara Pescatore

617- 422-4727

Keep in mind, dividends are not guaranteed. 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 bought and sold in the open market through a stock exchange and frequently trade at prices lower than their net asset value. Net Asset Value (NAV) is total assets less total liabilities divided by the number of common shares outstanding. For performance data on Pioneer's closed-end funds, please call 800-225-6292 or visit our closed-end pricing page.

Pioneer Funds Distributor, Inc., Member SIPC (C)Pioneer Investment Management, Inc.
60 State Street Boston, MA 02109 Member of the UniCredito Italiano Banking Group,
Register of Banking Groups

Contacts:

Pioneer Investments
Broker/Advisor Inquiries Please Contact:
800-622-9876
or
Media Inquiries Please Contact:
Geoff Smith, 617- 422-4727
or
Tara Pescatore, 617- 422-4727

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