UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
INFORMATION REQUIRED IN PROXY STATEMENT
SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934
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| | Confidential, for Use of the Commission Only (as permitted by Rule
14a-6(e)(2))
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|X| Definitive Additional Materials
| | Soliciting Material Pursuant to Rule 14a-12
PIONEER HIGH INCOME TRUST
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(Name of Registrant(s) as Specified In Its Charter)
N/A
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PIONEER INVESTMENTS
[GRAPHIC OMITTED]
IMPORTANT NOTICE REGARDING YOUR INVESTMENT IN
PREFERRED SHARES OF
PIONEER HIGH INCOME TRUST
Dear Shareholder:
We recently sent you proxy materials regarding the Annual Meeting of
Shareholders of Pioneer High Income Trust (the "Fund") to be held on
September 18, 2012. Our records indicate that we have not received your vote.
We urge you to vote as soon as possible so we can obtain a sufficient number
of votes to hold the meeting. By voting now you will help save on the cost
of additional solicitation.
PLEASE VOTE TODAY!
VOTING IS EASY AND YOU MAY VOTE VIA INTERNET, PHONE, OR BY MAIL. SIMPLY
FOLLOW THE INSTRUCTIONS ON THE ENCLOSED PROXY CARD.
The Fund's Board of Trustees recommends a vote "FOR" the proposal to elect
two Trustees to your Fund. A copy of the Proxy Statement is available by
calling the toll free number shown below:
1-800-290-6430
YOUR VOTE IS NEEDED IMMEDIATELY!
Please vote now to be sure your vote is received in time for the
SEPTEMBER 18, 2012
ANNUAL MEETING OF SHAREHOLDERS.
VOTING TAKES ONLY A FEW MINUTES. THANK YOU FOR YOUR PARTICIPATION IN THIS
IMPORTANT MATTER.
THE FUND has made it very easy for you to vote. Choose one of the following
methods:
o LOG ON to the website, on your ballot , enter the control number
printed on the card, and follow the on-screen prompts.
o CALL the telephone number on your ballot, enter the control number
printed on the card, and follow the touchtone prompts.
o MAIL in your signed card in the postage-paid envelope provided.
PHITPfd-R