As filed with the Securities and Exchange Commission on February 11, 2014

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

               RULE 23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES
                                       of
                            PIONEER HIGH INCOME TRUST
                                 60 State Street
                                Boston, MA 02109
                                 (617) 742-7825

                    Under the Investment Company Act of 1940
                    Investment Company Act File No. 811-21043

     The undersigned registered closed-end investment company hereby notifies
the Securities and Exchange Commission (the "Commission") that it intends to
redeem securities of which it is the issuer, as set forth below and in
accordance with the requirements of Rule 23c-2 under the Investment Company
Act of 1940, as amended (the "1940 Act").

(1) Titles of the classes of securities of Pioneer High Income Trust (the
"Trust") to be redeemed:

         Auction Market Preferred Shares, Series M
         Auction Market Preferred Shares, Series W
         Auction Market Preferred Shares, Series TH

(2) The date on which the securities are to be redeemed:

         Series                                         Date

         Auction Market Preferred Shares, Series W:    March 13, 2014
         Auction Market Preferred Shares, Series TH:   March 14, 2014
         Auction Market Preferred Shares, Series M:    March 18, 2014

(3) Applicable provisions of the governing instrument pursuant to which the
securities are to be redeemed:

         The Auction Market Preferred Shares are to be redeemed pursuant to
         Section 9(a)(i) of Part I of the Statement of Preferences of Auction
         Market Preferred Shares.

(4) Number of shares and the basis upon which the securities to be redeemed are
to be selected:

         The Trust intends to redeem all of its outstanding Auction Market
         Preferred Shares set forth below:

         Series                                               Number of Shares

         Auction Market Preferred Shares, Series M:             2,020
         Auction Market Preferred Shares, Series W:             2,020
         Auction Market Preferred Shares, Series TH:            2,000

                                    SIGNATURE

Pursuant to the requirements of Rule 23c-2 under the 1940 Act, the registrant
has duly caused this Notice of Intention to Redeem Securities to be signed on
its behalf by the undersigned, thereunto duly authorized, in the City of Boston
and Commonwealth of Massachusetts on the 11th day of February, 2014.

                                            PIONEER HIGH INCOME TRUST

                                            By:      /s/Christopher J. Kelley
                                                     ------------------------
                                            Name:    Christopher J. Kelley
                                            Title:   Secretary