OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2010 Estimated average burden hours per response..... 10.5 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q 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) Dorothy E. Bourassa, 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: December 31, 2008 Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after close of the first and third fiscal quarters, pursuant to Rule 30b1-5under the Investment Company Act of 1940 (17 CFR 270.30b-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q 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. Schedule of Investments. Pioneer High Income Trust SCHEDULE OF INVESTMENTS 12/31/08 (unaudited) Principal Amount USD ($) Value ASSET BACKED SECURITIES - 3.3% of Net Assets Transportation - 0.1% Airlines - 0.1% 351,975 Continental Airlines, Inc., Series B, 8.499%, 1$ 257,822 Total Transportation $ 257,822 Banks - 0.8% Thrifts & Mortgage Finance - 0.8% 700,000 (a) ACE Securities Corp., 0.9213%, 4/25/35 $ 590,485 531,443 (a) ACE Securities Corp., 1.071%, 12/25/34 336,516 631,974 (a) Countrywide Asset-Backed Certificates, 0.65125%, 7 484,289 246,000 (a) FBR Securitization Trust, 0.82125%, 10/25/35 181,300 Total Banks $ 1,592,590 Diversified Financials - 0.0% Other Diversified Financial Services - 0.0% 280,000 (a) Bear Stearns Asset Backed Securities Trust, 0.9$ 82,999 Total Diversified Financials $ 82,999 Utilities - 2.4% Other Diversified Financial Services - 2.4% 4,008,173 Ormat Funding Corp., 8.25%, 12/30/20 $ 2,966,048 2,175,000 (a) Power Contract Financing III LLC, 1.332%, 2/5/10 ( 1,761,750 Total Utilities $ 4,727,798 TOTAL ASSET BACKED SECURITIES (Cost $8,313,260) $ 6,661,209 COLLATERALIZED MORTAGE BACKED SECURITIES - 2.1% of Net Assets Consumer Services - 0.4% Restaurants - 0.4% 1,245,000 DB Master Finance LLC, 8.285%, 6/20/31 (144A) $ 802,676 Total Consumer Services $ 802,676 Banks - 1.7% Thrifts & Mortgage Finance - 1.7% 720,000 (a) Carrington Mortgage Loan Trust, 0.571%, 10/25/3$ 610,930 1,504,000 (a) Carrington Mortgage Loan Trust, 0.671%, 2/25/37 933,214 432,416 (a) Countrywide Alternative Loan Trust, 0.801%, 10/25/ 199,707 516,336 (a) Countrywide Alternative Loan Trust, 0.821%, 9/25/3 232,849 763,429 (a) Countrywide Alternative Loan Trust, 0.831%, 1/25/3 223,873 324,189 (a) Countrywide Home Loan Mortgage Pass Through Trust, 115,921 205,802 (a) First Franklin Mortgage Loan Asset Backed Certific 155,835 1,722,764 (a) Luminent Mortgage Trust, 0.731%, 7/25/36 269,062 441,530 (a) Structured Asset Mortgage Investments, Inc., 0.781 200,298 1,021,343 (a) WaMu Mortgage Pass Through Certificates, 0.781%, 4 482,161 245,726 (a) WaMu Mortgage Pass Through Certificates, 0.951%, 7 58,662 Total Banks $ 3,482,512 TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $6,484,805) $ 4,285,188 CORPORATE BONDS & NOTES - 136.2% of Net Assets Energy - 12.7% Oil & Gas Drilling - 1.0% 3,924,838 DDI Holding AS, 9.3%, 1/19/12 (144A) $ 1,962,419 Oil & Gas Equipment & Services - 4.1% 600,000 (a) DP Producer AS, 8.201%, 12/5/11 (144A) $ 30,000 3,975,000 Hawk Corp., 8.75%, 11/1/14 4,034,625 1,100,000 Nexus 1 Pte, Ltd., 10.5%, 3/7/12 (144A) 880,000 11,500,000 NOK Petrojack AS, 11.0%, 4/19/10 985,419 500,000 (a) PetroProd, Ltd., 10.75%, 1/12/12 (144A) 110,000 2,000,000 Sevan Marine ASA, 9.25%, 12/20/11 (144A) 1,000,000 3,500,000 Skeie Drilling & Production ASA, 11.25%, 3/8/13 (1 1,050,000 $ 8,090,044 Integrated Oil & Gas - 0.4% 2,070,000 Tristan Oil, Ltd., 10.5%, 1/1/12 (144A) $ 828,000 Oil & Gas Exploration & Production - 5.4% 2,500,000 Norse Energy Corp. ASA, 6.5%, 7/14/11 (144A) $ 1,625,000 3,000,000 NOK Norse Energy Corp. ASA, 10.0%, 7/13/10 321,332 9,000,000 NOK Norwegian Energy Co. AS, 11.0%, 7/13/10 (144A) 835,464 1,610,000 Parallel Petroleum Corp., 10.25%, 8/1/14 1,022,350 875,000 PetroHawk Energy Corp., 9.125%, 7/15/13 708,750 5,300,000 PetroQuest Energy, Inc., 10.375%, 5/15/12 3,657,000 3,145,000 Quicksilver Resources, Inc., 7.125%, 4/1/16 1,682,575 710,000 (a) SandRidge Energy, Inc., 7.508%, 4/1/14 377,589 1,070,000 (b) SandRidge Energy, Inc., 8.625%, 4/1/15 556,400 $ 10,786,460 Oil & Gas Refining & Marketing - 1.8% 4,075,000 (n) Aventine Renewable Energy Holdings, Inc., 10.0%$ 672,375 1,275,000 (a) Ohio Air Quality Development Authority Revenue, 10 153,000 2,120,000 (c)(VeraSun Energy Corp., 9.375%, 6/1/17 254,400 4,280,000 (c)(VeraSun Energy Corp., 9.875%, 12/15/12 2,568,000 $ 3,647,775 Total Energy $ 25,314,698 Materials - 16.6% Commodity Chemicals - 3.4% 4,635,000 ARCO Chemical Co., 9.8%, 2/1/20 $ 509,850 4,750,000 Basell Finance Co., 8.1%, 3/15/27 (144A) 95,000 2,000,000 (n) Georgia Gulf Corp., 9.5%, 10/15/14 600,000 2,860,000 (n) Georgia Gulf Corp., 10.75%, 10/15/16 686,400 3,000,000 Hexion US Finance Corp., 9.75%, 11/15/14 855,000 4,500,000 Methanex Corp., 8.75%, 8/15/12 3,948,750 540,000 EURONell AF S.a.r.l., 8.375%, 8/15/15 (144A) 22,519 $ 6,717,519 Diversified Chemicals - 0.1% 350,000 EUROIneos Group Holdings Plc, 7.875%, 2/15/16 (144A$ 58,382 1,270,000 (n) Ineos Group Holdings Plc, 8.5%, 2/15/16 (144A) 114,300 $ 172,682 Forestry - 0.4% 1,645,000 Mandra Forestry Holdings, Ltd., 12.0%, 5/15/13 $ 822,500 Construction Materials - 1.9% 4,500,000 AGY Holding Corp., 11.0%, 11/15/14 $ 2,700,000 2,185,000 (n) U.S. Concrete, Inc., 8.375%, 4/1/14 1,179,900 $ 3,879,900 Metal & Glass Containers - 0.7% 2,500,000 AEP Industries, Inc., 7.875%, 3/15/13 $ 1,412,500 Paper Packaging - 4.9% 5,450,000 Exopack Holding Corp., 11.25%, 2/1/14 $ 3,188,250 2,795,000 Graham Packaging Co., 9.875%, 10/15/14 1,718,925 5,540,000 (n) Graphic Packaging International, Inc., 9.5%, 8/15/ 3,822,600 2,150,000 U.S. Corrugated, Inc., 10.0%, 6/1/13 1,032,000 $ 9,761,775 Aluminum - 0.6% 1,200,000 Asia Aluminum Holdings, Ltd., 8.0%, 12/23/11 (1$ 372,000 3,180,000 (d) Indalex Holding Corp., 11.5%, 2/1/14 357,750 705,000 (a)(Noranda Aluminum Acquisition Corp., 6.595%, 5/15/1 239,700 800,000 (a)(Noranda Aluminum Holdings Corp., 8.345%, 11/15/14 128,000 $ 1,097,450 Diversified Metals & Mining - 2.6% 3,300,000 American Rock Salt Co. LLC, 9.5%, 3/15/14 $ 2,986,500 825,000 Blaze Recycling & Metals LLC, 10.875%, 7/15/12 (14 618,750 2,890,000 FMG Finance Pty., Ltd., 10.625%, 9/1/16 (144A) 1,676,200 $ 5,281,450 Steel - 2.0% 4,205,000 Algoma Acquisition Corp., 9.875%, 6/15/15 (144A$ 1,597,900 2,400,000 CSN Islands VIII Corp., 9.75%, 12/16/13 (144A) 2,448,000 $ 4,045,900 Total Materials $ 33,191,676 Capital Goods - 7.6% Aerospace & Defense - 1.2% 3,600,000 Aeroflex, Inc., 11.75%, 2/15/15 (144A) $ 2,340,000 Building Products - 0.5% 1,935,000 Industrias Unidas SA de CV, 11.5%, 11/15/16 (14$ 483,750 1,500,000 (n) Panolam Industries International, 10.75%, 10/1/13 600,000 $ 1,083,750 Heavy Electrical Equipment - 2.3% 4,790,000 Altra Industrial Motion, 9.0%, 12/1/11 $ 4,526,550 Industrial Conglomerates - 0.5% 2,515,000 Park-Ohio Industries, Inc., 8.375%, 11/15/14 $ 1,031,150 Construction & Farm Machinery & Heavy Trucks - 1.7% 5,640,000 (n) Accuride Corp., 8.5%, 2/1/15 $ 1,847,100 3,250,000 Commercial Vehicle Group, Inc., 8.0%, 7/1/13 1,527,500 $ 3,374,600 Industrial Machinery - 1.2% 2,440,000 Industrias Metalurgicas Pescarmona SA, 11.25%, $ 1,098,000 2,065,000 Mueller Water Products, Inc., 7.375%, 6/1/17 1,404,200 $ 2,502,200 Trading Companies & Distributors - 0.2% 200,000 United Rentals North America, 6.5%, 2/15/12 $ 158,000 370,000 Wesco Distribution, Inc., 7.5%, 10/15/17 241,887 $ 399,887 Total Capital Goods $ 15,258,137 Commercial & Professional Services - 9.3% Commercial Printing - 1.7% 4,835,000 Sheridan Acquisition Corp., 10.25%, 8/15/11 $ 3,390,544 Diversified Commercial & Professional Services - 0.9% 2,535,000 (n) Aleris International, Inc., 10.0%, 12/15/16 $ 411,937 4,450 (e) MSX International UK, 12.5%, 4/1/12 (144A) 1,780,000 $ 2,191,937 Environmental & Facilities Services - 2.7% 720,000 Clean Harbors, Inc., 11.25%, 7/15/12 $ 721,800 5,800,000 (n) Waste Services, Inc., 9.5%, 4/15/14 4,118,000 $ 4,839,800 Office Services & Supplies - 4.0% 11,830,000 Xerox Capital Trust I, 8.0%, 2/1/27 $ 8,078,589 Total Commercial & Professional Services $ 18,500,870 Transportation - 1.9% Air Freight & Logistics - 1.1% 2,000,000 CEVA Group Plc, 10.0%, 9/1/14 (144A) $ 1,482,500 1,545,000 EUROCEVA Group Plc, 10.0%, 12/1/16 (144A) 644,287 $ 2,126,787 Railroads - 0.8% 1,750,000 Kansas City Southern de Mexico, 9.375%, 5/1/12 $ 1,601,250 Total Transportation $ 3,728,037 Automobiles & Components - 4.6% Auto Parts & Equipment - 4.6% 500,000 (n) Allison Transmission, Inc., 11.0%, 11/1/15 (144$ 245,000 2,605,000 (b)(Allison Transmission, Inc., 11.25%, 11/1/15 (144A) 1,015,950 5,965,000 Cooper-Standard Automotive, Inc., 8.375%, 12/15/14 1,043,875 4,535,000 Lear Corp., 8.75%, 12/1/16 1,315,150 1,500,000 (f) Stanadyne Corp., 0.0%, 2/15/15 675,000 4,690,000 Stanadyne Corp., 10.0%, 8/15/14 3,189,200 4,235,000 (n) Tenneco Automotive, Inc., 8.625%, 11/15/14 1,609,300 $ 9,093,475 Total Automobiles & Components $ 9,093,475 Consumer Durables & Apparel - 2.8% Homebuilding - 0.8% 3,060,000 Meritage Homes Corp., 6.25%, 3/15/15 $ 1,621,800 Housewares & Specialities - 1.7% 1,435,000 (n) Jarden Corp., 7.5%, 5/1/17 $ 979,387 3,690,000 (n) Yankee Acquisition Corp., 8.5%, 2/15/15 1,720,462 1,500,000 (n) Yankee Acquisition Corp., 9.75%, 2/15/17 630,000 $ 3,329,849 Textiles - 0.3% 1,000,000 Invista, 9.25%, 5/1/12 (144A) $ 700,000 Total Consumer Durables & Apparel $ 5,651,649 Consumer Services - 5.2% Consumer Services - 1.1% 2,698,571 (b) American Achievement Group Holding Corp., 14.75$ 871,198 3,080,000 (f) Visant Holding Corp., 10.25%, 12/1/13 2,279,200 $ 3,150,398 Casinos & Gaming - 3.5% 1,650,000 Buffalo Thunder Development Authority, 9.375%, $ 330,000 890,000 FireKeepers Development Authority, 13.875%, 5/1/15 551,800 2,050,000 (n) Fontainebleau Las Vegas Holdings LLC, 10.25%, 6/15 199,875 630,000 (n) Galaxy Entertainment Finance Co., Ltd., 9.875%, 12 277,200 4,500,000 Little Traverse Bay Bands of Odawa Indians, 10.25% 2,835,000 530,000 Mashantucket Western Pequot Tribe, 8.5%, 11/15/15 208,025 1,585,000 Pokagon Gaming Authority, 10.375%, 6/15/14 (144A) 1,363,100 1,895,000 Shingle Springs Tribal Gaming Authority, 9.375%, 6 947,500 2,450,000 (c) Trump Entertainment Resorts, Inc., 8.5%, 6/1/15 324,625 $ 7,037,125 Leisure Facilities - 0.1% 2,000,000 (a)(HRP Myrtle Beach Operations LLC, 7.383%, 4/1/12$ 100,000 Total Consumer Services $ 10,287,523 Media - 8.6% Broadcasting - 8.3% 3,200,000 (n) CCH I Holdings LLC, 11.0%, 10/1/15 $ 560,000 1,500,000 (n) CCH II Holdings LLC, 10.25%, 9/15/10 660,000 3,000,000 GCI, Inc., 7.25%, 2/15/14 2,340,000 2,200,000 (f) Inmarsat Finance II Plc, 10.375%, 11/15/12 1,949,750 2,500,000 Intelsat Corp., 9.25%, 6/15/16 (144A) 2,275,000 2,500,000 Intelsat Jackson Holdings, Ltd., 11.5%, 6/15/16 (1 2,250,000 1,000,000 Intelsat Subsidiary Holdings, 8.5%, 1/15/13 (144A) 925,000 3,750,000 EUROKabel Deutschland GMBH, 10.75%, 7/1/14 4,769,600 535,000 (n) Telesat Canada, 11.0%, 11/1/15 (144A) 382,525 3,865,000 (b)(Univision Communications, 9.75%, 3/15/15 (144A) 521,775 $ 16,633,650 Publishing - 0.3% 1,400,000 TL Acquisitions, Inc., 10.5%, 1/15/15 (144A) $ 574,000 Total Media $ 17,207,650 Retailing - 3.5% Distributors - 0.9% 4,735,000 Intcomex, Inc., 11.75%, 1/15/11 $ 1,894,000 Internet Retailing - 0.9% 3,170,000 Ticketmaster, 10.75%, 8/1/16 (144A) $ 1,711,800 Automotive Retail - 0.1% 820,000 (n) KAR Holdings, Inc., 10.0%, 5/1/15 $ 270,600 Specialty Stores - 1.6% 4,615,000 Sally Holdings LLC, 10.5%, 11/15/16 $ 3,138,200 Total Retailing $ 7,014,600 Food & Staples Retailing - 0.9% Drug Retail - 0.9% 3,350,000 (n) Duane Reade, Inc., 9.75%, 8/1/11 $ 1,775,500 Total Food & Staples Retailing $ 1,775,500 Food, Beverage & Tobacco - 5.5% Brewers - 3.2% 5,885,000 Cia Brasileira de Bebida, 10.5%, 12/15/11 $ 6,458,788 Packaged Foods & Meats - 1.0% 775,000 Bertin, Ltd., 10.25%, 10/5/16 (144A) $ 426,250 500,000 Marfrig Overseas, Ltd., 9.625%, 11/16/16 (144A) 295,000 2,410,000 (n) Minerva Overseas, Ltd., 9.5%, 2/1/17 (144A) 1,325,500 $ 2,046,750 Tobacco - 1.2% 1,365,000 Alliance One International, Inc., 8.5%, 5/15/12$ 1,003,275 1,675,000 Alliance One International, Inc., 11.0%, 5/15/12 1,390,250 $ 2,393,525 Total Food, Beverage & Tobacco $ 10,899,063 Household & Personal Products - 0.5% Household Products - 0.5% 1,740,000 (n) Central Garden & Pet Co., 9.125%, 2/1/13 $ 1,026,600 Total Household & Personal Products $ 1,026,600 Health Care Equipment & Services - 10.1% Health Care Equipment & Services - 1.0% 2,875,000 Accellent, Inc., 10.5%, 12/1/13 $ 1,969,375 Health Care Supplies - 1.0% 2,570,000 (b) Biomet, Inc., 10.375%, 10/15/17 $ 2,017,450 Health Care Services - 3.6% 2,160,000 AMR HoldCo, 10.0%, 2/15/15 $ 2,008,800 4,055,000 Rural/Metro Corp., 9.875%, 3/15/15 3,244,000 3,725,000 Surgical Care Affiliates, Inc., 10.0%, 7/15/17 (14 1,937,000 $ 7,189,800 Health Care Facilities - 2.7% 3,800,000 Hanger Orthopedic Group, Inc., 10.25%, 6/1/14 $ 3,401,000 2,555,000 (b) HCA, Inc., 9.625%, 11/15/16 1,992,900 $ 5,393,900 Managed Health Care - 1.8% 4,400,000 Multiplan, Inc., 10.375%, 4/15/16 (144A) $ 3,564,000 Total Health Care Equipment & Services $ 20,134,525 Pharmaceuticals & Biotechnology & Life Sciences - 4.0% Pharmaceuticals - 4.0% 3,195,000 (n) Angiotech Pharmaceuticals, Inc., 7.75%, 4/1/14 $ 686,925 2,000,000 Phibro Animal Health Corp., 10.0%, 8/1/13 (144A) 1,600,000 3,000,000 Phibro Animal Health Corp., 13.0%, 8/1/14 (144A) 2,340,000 3,817,000 Warner Chilcott Corp., 8.75%, 2/1/15 3,397,130 $ 8,024,055 Total Pharmaceuticals & Biotechnology & Life Sc$ 8,024,055 Banks - 0.5% Diversified Banks - 0.2% 1,750,000 (a)(ALB Finance BV, 9.375% $ 350,000 400,000 (a) Banco Macro SA, 10.75%, 6/7/12 116,000 $ 466,000 Regional Banks - 0.3% 500,000 (a)(Wells Fargo Capital XV, 9.75% $ 505,000 Total Banks $ 971,000 Diversified Financials - 10.5% Other Diversified Financial Services - 4.4% 1,500,000 (a)(Citigroup, Inc., 8.4% $ 990,435 7,950,000 GATX Financial Corp., 8.875%, 6/1/09 7,860,555 $ 8,850,990 Specialized Finance - 3.4% 3,770,000 ACE Cash Express, Inc., 10.25%, 10/1/14 (144A) $ 754,000 640,000 iPayment, Inc., 9.75%, 5/15/14 320,000 2,300,000 (a)(MBIA Insurance Co., 14.0% 1/15/33 (144A) 1,173,000 9,000,000 NCO Group, Inc., 11.875%, 11/15/14 4,500,000 $ 6,747,000 Consumer Finance - 2.7% 3,000,000 (n) Ford Motor Credit Co., 7.875%, 6/15/10 $ 2,400,540 3,000,000 (a) Ford Motor Credit Co., 9.269%, 4/15/09 2,895,000 $ 5,295,540 Total Diversified Financials $ 20,893,530 Insurance - 8.0% Insurance Brokers - 1.9% 2,640,000 Alliant Holdings I, Inc., 11.0%, 5/1/15 (144A) $ 1,425,600 3,765,000 HUB International Holdings, Inc., 10.25%, 6/15/15 1,661,306 900,000 (a) U.S.I. Holdings Corp., 6.024%, 11/15/14 (144A) 365,625 885,000 U.S.I. Holdings Corp., 9.75%, 5/15/15 (144A) 352,894 $ 3,805,425 Life & Health Insurance - 2.6% 5,420,000 Presidential Life Corp., 7.875%, 2/15/09 $ 5,101,575 Multi-Line Insurance - 0.9% 3,075,000 (a) Liberty Mutual Group, Inc., 10.75%, 6/15/58 (14$ 1,691,250 Property & Casualty Insurance -1.6% 5,300,000 Allmerica Financial Corp., 7.625%, 10/15/25 $ 3,180,000 Reinsurance - 1.1% 275,000 (a)EAtlas Reinsurance Plc, 15.487%, 1/10/11 (144A) $ 363,150 375,000 (a) Blue Fin, Ltd., 8.689% 4/10/12 (144A) 316,687 250,000 (a) Residential Reinsurance 2006, 12.203%, 6/5/09 (144 248,300 850,000 (a) Residential Reinsurance 2008, 13.703%, 6/6/11 (144 814,725 500,000 (a) Successor II, Ltd., 27.193%, 4/6/10 (144A) 476,050 $ 2,218,912 Total Insurance $ 15,997,162 Real Estate - 0.0% Real Estate Operating Companies - 0.0% 225,000 (a) Alto Palermo SA, 11.0%, 6/11/12 (144A) $ 78,750 Total Real Estate $ 78,750 Software & Services - 5.4% IT Consulting & Other Services - 3.1% 2,790,000 Activant Solutions, Inc., 9.5%, 5/1/16 $ 1,297,350 5,745,000 Pegasus Solutions, Inc., 10.5%, 4/15/15 (144A) 3,906,600 1,705,000 Vangent, Inc., 9.625%, 2/15/15 991,031 $ 6,194,981 Data Processing & Outsourced Services - 2.2% 7,365,000 (n) First Data Corp., 9.875%, 9/24/15 $ 4,455,825 Application Software - 0.1% 810,000 Open Solutions, Inc., 9.75%, 2/1/15 (144A) $ 121,500 Total Software & Services $ 10,772,306 Semiconductors & Semiconductor Equipment - 0.5% Semiconductor Equipment - 0.5% 750,000 (a) Freescale Semiconductor, Inc., 5.871%, 12/15/14$ 255,000 2,000,000 (b)(Freescale Semiconductor, Inc., 9.125%, 12/15/14 460,000 750,000 (n) Freescale Semiconductor, Inc., 10.125%, 12/15/16 307,500 Total Semiconductors & Semiconductor Equipment $ 1,022,500 Telecommunication Services - 11.2% Integrated Telecommunication Services - 4.1% 4,165,000 Broadview Networks Holdings, Inc., 11.375%, 9/1$ 2,873,850 4,070,000 GC Impsat Holdings I Plc, 9.875%, 2/15/17 (144A) 2,442,000 3,865,000 (n) PAETEC Holding Corp., 9.5%, 7/15/15 2,299,675 691,000 (n) Tele Norte Leste Participacoes SA, 8.0%, 12/18/13 587,350 $ 8,202,875 Wireless Telecommunication Services - 7.1% 1,380,000 Cell C Property, Ltd., 11.0%, 7/1/15 (144A) $ 1,166,100 6,400,000 Cricket Communications, Inc., 9.375%, 11/1/14 5,760,000 1,500,000 Digicel, Ltd., 9.25%, 9/1/12 (144A) 1,275,000 2,500,000 (a)(Hellas Telecommunications Luxembourg II, 10.503%, 500,000 5,290,000 Hughes Network Systems LLC, 9.5%, 4/15/14 4,298,125 3,020,000 True Move Co., Ltd., 10.75%, 12/16/13 (144A) 1,117,400 $ 14,116,625 Total Telecommunication Services $ 22,319,500 Utilities - 6.5% Electric Utilities - 2.6% 1,500,000 Mirant JPSCo. Finance, Ltd., 11.0%, 7/6/16 (144$ 1,125,000 2,220,000 (g) Rede Empresas de Energia Electrica SA, 11.125%, (1 1,046,175 4,345,000 (n) Texas Computer Electric Hold LLC, 10.25%, 11/1/15 3,084,950 $ 5,256,125 Multi - Utilities - 0.5% 1,325,000 PNM Resources, Inc., 9.25%, 5/15/15 $ 1,053,375 Independent Power Producers & Energy Traders - 3.4% 2,000,000 (n) Aes Chivor SA ESP, 9.75%, 12/30/14 (144A) $ 1,850,000 3,200,000 Biofuel Energy ASA, 10.0%, 6/7/12 2,560,000 2,800,000 Intergen NV, 9.0%, 6/30/17 (144A) 2,296,000 $ 6,706,000 Total Utilities $ 13,015,500 TOTAL CORPORATE BONDS & NOTES (Cost $440,839,098) $ 272,178,306 CONVERTIBLE BONDS & NOTES - 5.0% of Net Assets Energy - 1.9% Oil & Gas Drilling - 1.5% 1,510,000 (f) Hercules Offshore, Inc., 3.375%, 6/1/38 (144A) $ 690,825 1,600,000 Transocean, Ltd., 1.5%, 12/15/37, 1,296,000 1,175,000 Transocean, Ltd., 1.625%, 12/15/37 1,023,719 $ 3,010,544 Oil & Gas Exploration & Production - 0.4% 1,340,000 Chesapeake Energy Corp., 2.5%, 5/15/37 $ 782,225 Total Energy $ 3,792,769 Transportation - 0.7% Marine - 0.7% 2,595,000 Horizon Lines, Inc., 4.25%, 8/15/12 $ 1,329,937 Total Transportation $ 1,329,937 Health Care Equipment & Services - 1.4% Health Care Services - 0.3% 1,210,000 Omnicare, Inc., 3.25%, 12/15/35 $ 679,112 Health Care Facilities - 1.1% 1,985,000 LifePoint Hospitals, Inc., 3.25%, 8/15/25 $ 1,426,719 1,070,000 LifePoint Hospitals, Inc., 3.5%, 5/15/14 723,588 $ 2,150,307 Total Health Care Equipment & Services $ 2,829,419 Technology Hardware & Equipment - 0.3% Communications Equipment - 0.2% 2,580,000 (n) Nortel Networks Corp., 2.125%, 4/15/14 $ 361,200 Electronic Manufacturing Services - 0.1% 360,000 Flextronics International, Ltd., 1.0%, 8/1/10 $ 297,000 Total Technology Hardware & Equipment $ 658,200 Telecommunication Services - 0.7% Alternative Carriers - 0.7% 2,190,000 Time Warner Telecom, Inc., 2.375%, 4/1/26 $ 1,390,650 Total Telecommunication Services $ 1,390,650 TOTAL CONVERTIBLE BONDS & NOTES $ 10,000,975 (Cost $12,004,370) MUNICIPAL BONDS - 7.2% of Net Assets Indiana - 2.8% 1,650,000 East Chicago Industrial Pollution Control Reven$ 1,490,841 4,250,000 Indiana Development Finance Authority Revenue, 5.7 3,985,735 $ 5,476,576 New Jersey - 1.2% 4,525,000 New Jersey Economic Development Authority Reven$ 2,389,607 New York - 1.1% 3,475,000 New York City Industrial Development Agency Rev$ 2,267,229 North Carolina - 2.1% 6,300,000 Charlotte Special Facilities Refunding Revenue,$ 3,054,051 2,000,000 Charlotte Special Facilities Refunding Revenue, 7. 1,182,940 $ 4,236,991 TOTAL MUNICIPAL BONDS (Cost $16,297,863) $ 14,370,403 MUNICIPAL COLLATERALIZED DEBT OBLIGATION - 1.4% of Net Assets 3,300,000 (h) Non-Profit Preferred Funding Trust I, 12.0%, 9/$ 2,864,367 TOTAL MUNICIPAL COLLATERALIZED DEBT OBLIGATION (Cost $3,293,400) $ 2,864,367 SOVEREIGN DEBT OBLIGATIONS - 3.0% of Net Assets Brazil - 1.7% 4,800,000,0(f)IBanco Nacional de Desenvolimento Bndes, 8.0%, 4$ 3,394,236 Ecuador - 0.3% 2,015,000 (f)(Federal Republic of Ecuador, 10.0%, 8/15/30 (14$ 523,900 Russia - 1.0% 2,273,600 (f) Russia Government International Bond, 7.5%, 3/3$ 1,982,943 TOTAL SOVEREIGN DEBT OBLIGATIONS (Cost $5,417,555) $ 5,901,079 FLOATING RATE LOAN INTERESTS - 4.4% of Net Assets (i) Energy - 0.2% Oil & Gas Exploration & Production - 0.2% 600,000 Venoco, Inc., Second Lien Term Loan, 6.25%, 5/7$ 393,750 Total Energy $ 393,750 Materials - 0.5% Steel - 0.5% 2,265,500 Niagara Corp., Term Loan, 5.461%, 6/30/14 $ 1,042,130 Total Materials $ 1,042,130 Capital Goods - 0.8% Building Products - 0.7% 172,620 Custom Building Products, Inc., First Lien Term$ 118,820 2,250,000 Custom Building Products, Inc., Second Lien Term L 1,282,500 $ 1,401,320 Construction & Farm Machinery & Heavy Trucks - 0.1% 397,920 Rental Service Corp., Second Lien Initial Term $ 213,882 Total Capital Goods $ 1,615,202 Consumer Durables & Apparel - 0.1% Homebuilding - 0.1% 2,850,000 (c) LandSource Communities Development LLC, Second $ 98,562 Total Consumer Durables & Apparel $ 98,562 Consumer Services - 0.3% Casinos & Gaming - 0.3% 2,500,000 Gateway Casinos & Entertainment, Advance Second$ 670,832 Total Consumer Services $ 670,832 Household & Personal Products - 0.1% Household Products - 0.1% 143,238 Central Garden & Pet Company, Tranche B Term Lo$ 93,821 Total Household & Personl Products $ 93,821 Health Care Equipment & Services - 0.7% Health Care Equipment & Services - 0.7% 1,484,849 Talecris Biotherapeutics Holdings Corp., First $ 1,302,955 Total Health Care Equipment & Services $ 1,302,955 Diversified Financials - 1.1% Other Diversified Financial Services - 1.1% 2,422,767 (b)ELouis Topco, Ltd., Term Loan, 11.536%, 6/1/17 $ 2,252,190 Total Diversified Financials $ 2,252,190 Insurance - 0.6% Multi-Line Insurance - 0.6% 247,488 AmWins Group, Inc., Initial Term Loan 3.47% - $ 146,018 2,250,000 AmWins Group, Inc., Second Lien Initial Term Loan, 1,125,000 Total Insurance $ 1,271,018 TOTAL FLOATING RATE LOAN INTERESTS (Cost $17,871,617) $ 8,740,460 Shares COMMON STOCKS - 0.9% of Net Assets Transportation - 0.5% Airlines - 0.5% 96,157 (j)(Delta Airlines, Inc. $ 1,101,959 Total Transportation $ 1,101,959 Pharmaceuticals & Biotechnology & Life Sciences - 0.4% Pharmaceuticals - 0.4% 17,818 (n) Teva Pharmaceutical Industries, Ltd. (A.D.R.) $ 758,512 Total Pharmaceuticals & Biotechnology & Life Sc$ 758,512 TOTAL COMMON STOCKS (Cost $2,886,219) $ 1,860,471 CONVERTIBLE PREFERRED STOCK - 0.9% of Net Assets Diversified Financials - 0.9% Other Diversified Financial Services - 0.9% 2,755 Bank of America Corp., 7.25% $ 1,790,750 TOTAL CONVERTIBLE PREFERRED STOCK (Cost $2,108,446) $ 1,790,750 WARRANTS - 0.2% of Net Assets Energy - 0.2% Oil & Gas Exploration & Production - 0.2% 2,500,000 (j) Norse Energy Corp. ASA - CW11, Expires 7/14/11 $ 399,880 Total Energy $ 399,880 Diversified Financials - 0.0% Other Diversified Financial Services- 0.0% 1,645 (j) Mandra Forestry Holdings, Ltd. - CW13, Expires $ 98,700 Total Diversified Financials $ 98,700 Utilities- 0.0% Independent Power Producer & Energy Traders- 0.0% 150,592 (j) Biofuel Energy ASA, Expires 6/7/12 $ 0 Total Utilities $ 0 TOTAL WARRANTS (Cost $523,408) $ 498,580 TEMPORARY CASH INVESTMENTS - 20.3% of Net Assets Security Lending Collateral - 20.3%(k) Certificates of Deposit: 939,059 Abbey National Plc, 3.15%, 8/13/09 $ 939,059 938,932 Bank of Nova Scotia, 3.21%, 5/5/09 938,932 1,500,688 Bank of Scotland NY, 2.92%, 6/5/09 1,500,688 1,690,307 Barclays Bank, 1.5%, 5/27/09 1,690,307 298,562 Calyon NY, 4.62%, 1/16/09 298,562 1,878,119 CBA, 4.87%, 7/16/09 1,878,119 1,690,307 DNB NOR Bank ASA NY, 3.04%, 6/5/09 1,690,307 1,720,357 Intesa SanPaolo S.p.A., 1.44%, 5/22/09 1,720,357 108,783 NORDEA NY, 4.13%, 4/9/09 108,783 1,408,589 Royal Bank of Canada NY, 2.7%, 8/7/09 1,408,589 939,059 Royal Bank of Scotland, 3.06%, 3/5/09 939,059 187,725 Skandinavian Enskilda Bank NY, 3.06%, 2/13/09 187,725 1,878,119 Societe Generale, 3.29%, 9/4/09 1,878,119 1,690,307 Svenska Bank NY, 4.61%, 7/8/09 1,690,307 1,878,119 U.S. Bank NA, 2.25%, 8/24/09 1,878,119 $ 18,747,032 Commercial Paper: 1,844,312 American Honda Finance Corp., 4.95%, 7/14/09 $ 1,844,312 178,964 BBVA U.S., 2.83%, 3/12/09 178,964 939,059 CME Group, Inc., 2.9%, 8/6/09 939,059 938,960 General Electric Capital Corp., 2.86%, 3/16/09 938,960 1,878,119 HSBC Bank, Inc., 2.5%, 8/14/09 1,878,119 939,059 IBM, 2.39%, 9/25/09 939,059 1,690,307 Met Life Global Funding, 3.19%, 6/12/09 1,690,307 1,878,119 Monumental Global Funding, Ltd., 2.5%, 8/17/09 1,878,119 1,690,307 New York Life Global, 2.13%, 9/4/09 1,690,307 1,596,401 Westpac Banking Corp., 2.34%, 6/1/09 1,596,401 $ 13,573,607 Tri-party Repurchase Agreements: 319,055 Barclays Capital Markets, 0.5%, 1/2/09 $ 319,055 4,131,861 Deutsche Bank AG, 0.25%, 1/2/09 4,131,861 $ 4,450,916 Time Deposit: 1,878,119 BNP Paribas, 0.01%, 1/2/09 $ 1,878,119 Money Market Mutual Fund: 469,530 Columbia Government Reserves Fund $ 469,530 1,408,589 JP Morgan, U.S. Government Money Market Fund 1,408,589 $ 1,878,119 TOTAL SECURITIES LENDING COLLATERAL $ 40,527,793 TOTAL TEMPORARY CASH INVESTMENTS (Cost $40,527,793) $ 40,527,793 TOTAL INVESTMENTS IN SECURITIES - 184.9% (Cost $556,567,834) (l)(m) $ 369,679,581 OTHER ASSETS AND LIABILITIES - (9.4)% $ (18,770,313) PREFERRED SHARES AT REDEMPTION VALUE, INCLUDING DIVIDENDS PAYABLE - (75.5)% $ (151,003,846) NET ASSETS APPLICABLE TO COMMON SHAREOWNERS - 1$ 199,905,422 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 December 31, 2008, the value of these securities amounted to $89,423,551 or 44.7% of total net assets applicable to common shareowners. (a) Floating rate note. The rate shown is the coupon rate at December 31, 2008. (b) Payment-in Kind (PIK) security which may pay interest in additional principal amount. (c) Security is in default and is non-income producing. (d) On December 31, 2008, the security was not in default but defaulted after the period end. (e) Security is priced as a unit. (f) Debt obligation initially issued at one coupon which converts to a higher coupon at a specific date. The rate shown is the rate at December 31, 2008. (g) Security is a perpetual bond and has no definite maturity date. (h) Indicates a security that has been deemed illiquid. The aggregate cost of illiquid securities is $3,293,400. The aggregate value $2,864,367 represents 1.4% of total net assets applicable to common shareowners. (i) 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 December 31, 2008. (j) Non-income producing. (k) Security lending collateral is managed by Credit Suisse. (l) At December 31, 2008, the net unrealized loss on investments based on cost for federal income tax purposes of $557,162,090 was as follows: Aggregate gross unrealized gain for all investments in which there is an excess of value over tax cost $ 4,368,944 Aggregate gross unrealized loss for all investments in which there is an excess of tax cost over value (191,581,453) Net unrealized loss $ (187,212,509) For financial reporting purposes net unrealized loss was $186,888,253 and cost of investments aggregated $556,567,834 (m) At December 31, 2008, the following securities were out on loan: Principal Amount USD($) Description Market Value 5,583,000 Accuride Corp., 8.5%, 2/1/15 $ 2,026,166 1,130,000 Aes Chivor SA ESP, 9.75%, 12/30/14 (144A) 1,045,250 2,353,000 Aleris International, Inc., 10.0%, 12/15/16 392,819 450,000 Allison Transmission, Inc., 11.0%, 11/1/15 (144A) 228,750 2,192,000 Allison Transmission, Inc., 11.25%, 11/1/15 (144A) 906,940 3,163,000 Angiotech Pharmaceuticals, Inc., 7.75%, 4/1/14 741,329 3,642,000 Aventine Renewable Energy Holdings, Inc., 10.0%, 4 691,980 3,068,000 CCH I Holdings LLC, 11.0%, 10/1/15 593,146 1,400,000 CCH II Holdings LLC, 10.25%, 9/15/10 658,253 1,722,000 Central Garden & Pet Co., 9.125%, 2/1/13 1,081,453 3,316,000 Duane Reade, Inc., 9.75%, 8/1/11 1,892,192 6,350,000 First Data Corp., 9.875%, 9/24/15 4,000,259 125,000 Fontainebleau Las Vegas Holdings LLC, 10.25%, 6/15 12,757 2,690,000 Ford Motor Credit Co., 9.269%, 4/15/09 2,161,899 692,000 Freescale Semiconductor, Inc., 10.125%, 12/15/16 286,833 500,000 Freescale Semiconductor, Inc., 9.125%, 12/15/14 117,028 600,000 Galaxy Entertainment Finance Co., Ltd., 9.875%, 12 266,633 1,980,000 Georgia Gulf Corp., 9.5%, 10/15/14 633,711 2,830,000 Georgia Gulf Corp., 10.75%, 10/15/16 743,425 4,404,000 Graphic Packaging International, Inc., 9.5%, 8/15/ 3,196,816 1,700,000 Hellas Telecommunications Luxembourg II, 10.503%, 378,189 1,000,000 Ineos Group Holdings Plc, 8.5%, 2/15/16 (144A) 122,111 1,210,000 Jarden Corp., 7.5%, 5/1/17 840,950 200,000 KAR Holdings, Inc., 10.0%, 5/1/15 69,333 1,803,000 MBIA Insurance Co., 14.0% 1/15/33 (144A) 1,035,924 2,365,000 Minerva Overseas, Ltd., 9.5%, 2/1/17 (144A) 1,393,739 125,000 Nortel Networks Corp., 2.125%, 4/15/14 18,061 2,800,000 PAETEC Holding Corp., 9.5%, 7/15/15 1,788,657 1,485,000 Panolam Industries International, 10.75%, 10/1/13 633,909 105,000 Tele Norte Leste Participacoes SA, 8.0%, 12/18/13 89,530 529,000 Telesat Canada, 11.0%, 11/1/15 (144A) 387,933 4,192,000 Tenneco Automotive, Inc., 8.625%, 11/15/14 1,639,160 3,815,000 Texas Computer Electric Hold LLC, 10.25%, 11/1/15 2,775,412 2,230,000 Univision Communications, 9.75%, 3/15/15 (144A) 342,769 2,000,000 U.S. Concrete, Inc., 8.375%, 4/1/14 1,121,876 1,898,000 VeraSun Energy Corp., 9.375%, 6/1/17 161,034 4,230,000 VeraSun Energy Corp., 9.875%, 12/15/12 2,583,003 70,000 Waste Services, Inc., 9.5%, 4/15/14 51,104 3,650,000 Yankee Acquisition Corp., 8.5%, 2/15/15 1,819,017 1,485,000 Yankee Acquisition Corp., 9.75%, 2/15/17 678,397 5,000 Delta Airlines, Inc. 57,300 11,100 Teva Pharmaceutical Industries, Ltd. (A.D.R.) 472,527 $ 40,137,574 Note: Principal amounts are denominated in U.S. dollars unless otherwise denoted. Euro EURO Italian Lira ITL Norwegian KroneNOK Glossary of Terms: (A.D.R.) American Depositary Receipt 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 December 31, 2008, in valuing the Trust's investments: Valuation Input Investments in Securities Other Financial Instruments* Level 1 - Quote $2,260,351 $ 1,738,695 Level 2 - Other 0 Level 3 - Signi 0 Total $369,679,581 $ 1,738,695 * Other financial instruments include foreign exchange contracts. ITEM 2. 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-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on their evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR270.30a-3(b))) and Rule 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR240.13a-15(b) or 240.15d-15(b)). 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 any change in the registrant's internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR270.30a-3(d)) that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. 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. ITEM 3. EXHIBITS. (a) 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 February 27, 2009 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 February 27, 2009 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer Date February 27, 2009 * Print the name and title of each signing officer under his or her signature.