SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 FILED BY THE REGISTRANT [X] FILED BY A PARTY OTHER THAN THE REGISTRANT [ ] ------------------------------------------------------------------------------- CHECK THE APPROPRIATE BOX: [ ] Preliminary Proxy Statement [ ] Confidential for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [ ] Definitive Proxy Statement [X] Definitive Additional Materials [ ] Soliciting Material Pursuant to sec. 240.14a-11(c) or sec. 240.14a-12 MFS(R) Intermediate High Income Fund ------------------------------------------------------------------------------- (Name of Registrant as Specified in its Charter) ------------------------------------------------------------------------------- (Name of Person(s) Filing Proxy Statement, if other than the Registrant) PAYMENT OF FILING FEE (CHECK THE APPROPRIATE BOX): [X] No fee required. [ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11. 1) Title of each class of securities to which transaction applies: 2) Aggregate number of securities to which transaction applies: 3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined): 4) Proposed maximum aggregate value of transaction: 5) Total Fee Paid: [ ] Fee paid previously with preliminary materials. [ ] Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. 1) Amount previously paid: 2) Form, Schedule or Registration Statement No.: 3) Filing Party: 4) Date Filed: ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT MFS High Income Municipal Trust MFS High Yield Municipal Trust MFS Investment Grade Municipal Trust MFS Intermediate High Income Fund September 8, 2008 Dear Shareholder: We are writing to follow-up on proxy materials that were mailed to you regarding the Annual Meeting of Shareholders that is scheduled for October 9, 2008. At the meeting, stockholders are being asked to vote on a number of important proposals for your Fund, including: o Approval of an amended and restated Declaration of Trust (the Fund's organizational document), which will allow your Fund to conform to the declaration of trust used by other MFS-advised funds (but will not alter any of the Fund's current investments or investment policies). o Approval to amend or remove certain of the Fund's investment policies that are designated as "fundamental" (and so can be changed only with shareholder approval), which are being proposed in response to the development of new practices and changes in applicable law and to facilitate administration of the Fund. o Election of Fund Trustees For more information about these proposals, please see the proxy statement that was previously sent to you. THE TRUSTEES OF YOUR FUND UNANIMOUSLY RECOMMEND THAT YOU VOTE FOR EACH OF THE PROPOSALS. Your vote is very important. Voting promptly will help reduce solicitation costs (which are paid for by your Fund) and will eliminate your receiving follow-up phone calls or mailings. Your vote can be cast quickly and easily by signing, dating and mailing the enclosed proxy card in the enclosed postage-paid return envelope. You may also be able to vote by telephone or Internet by following instructions on your proxy card. If you are ready to vote by telephone, need assistance, or have any questions regarding the Fund's proposal or how to vote your shares, please call our proxy solicitor, Georgeson Inc. at 1-888-605-8354. We thank you for your continued trust and support. Sincerely, /s/ Robert J. Manning Robert J. Manning President MFS INVESTMENT MANAGEMENT (CONTROL NUMBER HERE) (BAR CODE HERE) MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 ELECTRONIC VOTING INSTRUCTIONS YOU CAN VOTE BY INTERNET OR TELEPHONE! AVAILABLE 24 HOURS A DAY, 7 DAYS A WEEK! Instead of mailing your proxy, you may choose one of the two voting methods outlined below to vote your proxy. VALIDATION DETAILS ARE LOCATED BELOW IN THE TITLE BAR. PROXIES SUBMITTED BY THE INTERNET OR TELEPHONE MUST BE RECEIVED BY 9:29 A.M., EASTERN TIME, ON OCTOBER 9, 2008. VOTE BY INTERNET o Log on to the Internet and go to www.investorvote.com o Follow the steps outlined on the secured website. VOTE BY TELEPHONE o Call toll free 1-800-652-VOTE (8683) within the United States, Canada & Puerto Rico any time on a touch tone telephone. There is NO CHARGE to you for the call. o Follow the instructions provided by the recorded message. Using a BLACK INK pen, mark your votes with an X as shown in [X] this example. Please do not write outside the designated areas. --------------------------------------------------------------------------------------------------------------------------- ANNUAL MEETING PROXY CARD 123456 C0123456789 12345 --------------------------------------------------------------------------------------------------------------------------- \/ IF YOU HAVE NOT VOTED VIA THE INTERNET OR TELEPHONE, FOLD ALONG THE PERFORATION, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. \/ [A] PROPOSALS -- THE TRUSTEES OF YOUR TRUST RECOMMEND THAT YOU VOTE IN FAVOR OF ITEMS 1, 2, 3 AND 4. 1. Election of Directors: 01 - J. Atwood Ives 02 - William R. Gutow 03 - Michael Hegarty 04 - Robert W. Uek [ ] MARK HERE TO VOTE FOR ALL NOMINEES [ ] MARK HERE TO WITHHOLD VOTE FROM ALL NOMINEES 01 02 03 04 [ ] FOR ALL EXCEPT - To withhold a vote for one or [ ] [ ] [ ] [ ] more nominees, mark the box to the left and the corresponding numbered box(es) to the right. FOR AGAINST ABSTAIN FOR AGAINST ABSTAIN 2. To approve an amended and restated [ ] [ ] [ ] 3. To amend or remove certain [ ] [ ] [ ] Declaration of Trust for each Trust. fundamental investment policies of the Trusts. 4. For Intermarket Income Trust I only, [ ] [ ] [ ] 5. To transact such other to approve a proposal to make business as may non-fundamental an investment properly come before policy of the Trust. the Meeting and any adjournment(s) or postponement(s) thereof. [B] AUTHORIZED SIGNATURES -- THIS SECTION MUST BE COMPLETED FOR YOUR VOTE TO BE COUNTED. -- DATE AND SIGN BELOW Please sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title. If a corporation, please sign in full corporate name and indicate the signer's office. If a partnership, sign in the partnership name. Date (mm/dd/yyyy) -- Please print Signature 1 -- Please keep signature Signature 2 -- Please keep signature date below. within the box. within the box. ---------------------------------- ------------------------------------ ------------------------------------- ---------------------------------- ------------------------------------ ------------------------------------- CHANGE OF ADDRESS -- Please print new address below. ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ \/ IF YOU HAVE NOT VOTED VIA THE INTERNET OR TELEPHONE, FOLD ALONG THE PERFORATION, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.\/ ------------------------------------------------------------------------------------------------------------------------ PROXY -- MFS INVESTMENT MANAGEMENT ------------------------------------------------------------------------------------------------------------------------ MFS(R)INTERMARKET INCOME TRUST I MFS(R)INTERMEDIATE HIGH INCOME FUND 500 BOYLSTON STREET, BOSTON, MASSACHUSETTS 02116 THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES OF EACH TRUST NOTICE OF THE 2008 ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON OCTOBER 9, 2008 The signer of this proxy card hereby appoints Christopher R. Bohane, Timothy M. Fagan, Mark D. Fischer, Brian E. Langenfeld, Susan S. Newton, and Susan A. Pereira and each of them separately, proxies, with power of substitution, and hereby authorizes each of them to represent, and to vote, as designated on the reverse side, at the Meeting of Shareholders of the above-referenced Trusts, on Thursday, October 9, 2008 at 9:30 a.m., Boston time, and at any adjournments thereof, all of the shares of the Trust that the undersigned would be entitled to vote if personally present. Each Trust will hold its meeting simultaneously with each Trust. Shareholders of each Trust will vote separately on each item. Only a Trust's shareholders of record on August 4, 2008 will be entitled to vote at that Trust's Meeting of Shareholders. THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE SIGNING SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR THE PROPOSALS. IN THEIR DISCRETION, THE PROXIES ARE AUTHORIZED TO VOTE UPON SUCH OTHER MATTERS AS MAY PROPERLY COME BEFORE THE MEETING. THE TRUSTEES RECOMMEND A VOTE FOR THE PROPOSALS ON THE REVERSE SIDE. YOUR VOTE IS IMPORTANT. WE WOULD APPRECIATE YOUR PROMPTLY VOTING, SIGNING AND RETURNING THE ENCLOSED PROXY, WHICH WILL HELP AVOID THE ADDITIONAL EXPENSE OF A SECOND SOLICITATION FOR YOUR TRUST. THE ENCLOSED ADDRESSED ENVELOPE REQUIRES NO POSTAGE AND IS PROVIDED FOR YOUR CONVENIENCE. PLEASE SIGN AND DATE ON THE REVERSE SIDE