<Page> UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811-03162 Active Assets Tax-Free Trust (Exact name of registrant as specified in charter) 1221 Avenue of the Americas, New York, New York 10020 (Address of principal executive offices) (Zip code) Ronald E. Robison 1221 Avenue of the Americas, New York, New York 10020 (Name and address of agent for service) Registrant's telephone number, including area code: 212-762-4000 Date of fiscal year end: June 30, 2004 Date of reporting period: June 30, 2004 Item 1 - Report to Shareholders <Page> WELCOME, SHAREHOLDER: IN THIS REPORT, YOU'LL LEARN ABOUT HOW YOUR INVESTMENT IN ACTIVE ASSETS TAX-FREE TRUST PERFORMED DURING THE ANNUAL PERIOD. WE WILL PROVIDE AN OVERVIEW OF THE MARKET CONDITIONS, AND DISCUSS SOME OF THE FACTORS THAT AFFECTED PERFORMANCE DURING THE REPORTING PERIOD. IN ADDITION, THIS REPORT INCLUDES THE FUND'S FINANCIAL STATEMENTS AND A LIST OF FUND INVESTMENTS. THIS MATERIAL MUST BE PRECEDED OR ACCOMPANIED BY A PROSPECTUS FOR THE FUND BEING OFFERED. MARKET FORECASTS PROVIDED IN THIS REPORT MAY NOT NECESSARILY COME TO PASS. THERE IS NO ASSURANCE THAT THE FUND WILL ACHIEVE ITS INVESTMENT OBJECTIVE. THE FUND IS SUBJECT TO MARKET RISK, WHICH IS THE POSSIBILITY THAT MARKET VALUES OF SECURITIES OWNED BY THE FUND WILL DECLINE AND, THEREFORE, THE VALUE OF THE FUND'S SHARES MAY BE LESS THAN WHAT YOU PAID FOR THEM. ACCORDINGLY, YOU CAN LOSE MONEY INVESTING IN THIS FUND. <Page> FUND REPORT FOR THE YEAR ENDED JUNE 30, 2004 MARKET CONDITIONS Perhaps the most significant event of the 12-month review period happened on its final day. On June 30, 2004, the Federal Open Market Committee (the "Fed") raised the federal funds rate target by 25 basis points, to 1.25 percent. Prior to that, the target rate had been at a multidecade low for a full year. Indeed, rates across the money market yield curve had steadily trended lower for several years. The Fed's change had been widely anticipated; at the end of the period the market reflected investors' general expectation that rates would rise still further in the coming months as a result of mounting inflationary pressures. For the year prior to the Fed's rate hike the municipal money markets were largely mixed. At the outset of the period, the U.S. economy remained weak and state governments were facing severe budgetary difficulties. Across the board, municipalities sought ways to reduce expenditures and boost revenue through a variety of tactics, including new fees and taxes, refinancing of existing debt and, in some instances, borrowing to fund deficits. The economic and investment environment both showed marked improvement in the spring of 2004, when continued growth in employment and corporate profits alike resulted in improving outlooks for municipal tax revenues. The money market yield curve -- the difference between short- and longer-term yields -- steepened significantly over the first six months of 2004, reflecting the market's expectation of further strength in the U.S. economy. PERFORMANCE ANALYSIS As of June 30, 2004, Active Assets Tax-Free Trust had net assets of more than $2.85 billion and an average portfolio maturity of 30 days. For the twelve-month period ended June 30, 2004, the Fund provided a total return of 0.50 percent. For the seven-day period ended June 30, 2004, the Fund provided an effective annualized yield and a current yield both of 0.60 percent, while its 30-day moving average yield for June was 0.58 percent. PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS. We were largely cautious in managing the Fund's portfolio during the period, preferring to avoid the one-year segment of the money market in anticipation of further yield increases there. As a result, the Fund's portfolio ended the period with a weighted average maturity somewhat lower than has historically been the case at this point in the year. We chose to emphasize short-term variable-rate paper and shorter maturities of tax-exempt commercial paper in order to minimize the potential adverse effects of rising interest rates. Given the budgetary challenges facing many municipal governments, we remained highly cautious in our security selection over the course of the review period. 2 <Page> PORTFOLIO COMPOSITION <Table> Variable Rate Municipal Obligations 80.1% Municipal Notes & Bonds 11.9 Tax-Exempt Commercial Paper 8.0 </Table> MATURITY SCHEDULE <Table> 1 - 30 Days 78.4% 31 - 60 Days 6.7 61 - 90 Days 5.3 91 - 120 Days 2.7 121 + Days 6.9 </Table> DATA AS OF JUNE 30, 2004. SUBJECT TO CHANGE DAILY. ALL PERCENTAGES FOR PORTFOLIO COMPOSITION AND MATURITY SCHEDULE ARE AS A PERCENTAGE OF TOTAL INVESTMENTS. PROVIDED FOR INFORMATIONAL PURPOSES ONLY AND SHOULD NOT BE DEEMED A RECOMMENDATION TO BUY OR SELL THE SECURITIES MENTIONED. MORGAN STANLEY IS A FULL-SERVICE SECURITIES FIRM ENGAGED IN SECURITIES TRADING AND BROKERAGE ACTIVITIES, INVESTMENT BANKING, RESEARCH AND ANALYSIS, FINANCING AND FINANCIAL ADVISORY SERVICES. INVESTMENT STRATEGY THE FUND INVESTS IN HIGH QUALITY, SHORT-TERM DEBT OBLIGATIONS. IN SELECTING INVESTMENTS, THE "INVESTMENT MANAGER," MORGAN STANLEY INVESTMENT ADVISORS INC., SEEKS TO MAINTAIN THE FUND'S SHARE PRICE AT $1.00. THE SHARE PRICE REMAINING STABLE AT $1.00 MEANS THAT THE FUND WOULD PRESERVE THE PRINCIPAL VALUE OF YOUR INVESTMENT. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND. ANNUAL HOUSEHOLDING NOTICE TO REDUCE PRINTING AND MAILING COSTS, THE FUND ATTEMPTS TO ELIMINATE DUPLICATE MAILINGS TO THE SAME ADDRESS. THE FUND DELIVERS A SINGLE COPY OF CERTAIN SHAREHOLDER DOCUMENTS, INCLUDING SHAREHOLDER REPORTS, PROSPECTUSES AND PROXY MATERIALS, TO INVESTORS WITH THE SAME LAST NAME WHO RESIDE AT THE SAME ADDRESS. YOUR PARTICIPATION IN THIS PROGRAM WILL CONTINUE FOR AN UNLIMITED PERIOD OF TIME UNLESS YOU INSTRUCT US OTHERWISE. YOU CAN REQUEST MULTIPLE COPIES OF THESE DOCUMENTS BY CALLING (800) 350-6414, 8:00 A.M. TO 8:00 P.M., ET. ONCE OUR CUSTOMER SERVICE CENTER HAS RECEIVED YOUR INSTRUCTIONS, WE WILL BEGIN SENDING INDIVIDUAL COPIES FOR EACH ACCOUNT WITHIN 30 DAYS. 3 <Page> ACTIVE ASSETS TAX-FREE TRUST PORTFOLIO OF INVESTMENTS - JUNE 30, 2004 <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ SHORT-TERM VARIABLE RATE MUNICIPAL OBLIGATIONS (84.1%) ALABAMA $ 14,970 Morgan County-Decatur Health Care Authority, General Hospital Ser 1994 PT-947 1.12% 07/08/04 $ 14,970,000 28,565 University of Alabama, Hospital Ser 2000 B (Ambac) 1.01 07/08/04 28,565,000 ARIZONA 9,800 University of Arizona, Arizona Board of Regents Ser 2004 B (Ambac) 1.05 07/08/04 9,800,000 CALIFORNIA 11,100 Golden Empire Schools Financing Authority, Kern High School District Ser 2001 1.03 07/08/04 11,100,000 COLORADO 15,000 Colorado Student Obligation Bond Authority, Ser 1989 A (Ambac) (AMT) 1.10 07/08/04 15,000,000 DELAWARE 10,000 University of Delaware, Ser 1998 1.04 07/08/04 10,000,000 DISTRICT OF COLUMBIA 16,000 District of Columbia, George Washington University Ser 1999 C (MBIA) 1.06 07/08/04 16,000,000 FLORIDA 22,250 Dade County Industrial Development Authority, Dolphins Stadium Ser 1985 B & C 1.04 07/08/04 22,250,000 8,000 Jacksonville Economic Development Commission, Florida Proton Therapy Institute Ser 2003 A 1.23 07/01/04 8,000,000 9,200 Jacksonville Electric Authority, Water & Sewer System 2003 Ser B (XLCA) 1.06 07/08/04 9,200,000 500 Orange County School Board, 2000 Ser B COPs (Ambac) 1.06 07/01/04 500,000 44,150 Orlando-Orange County Expressway Authority, Ser 2003C3 (FSA) & 2003C4 (FSA) 1.06 07/08/04 44,150,000 4,200 Palm Beach County School Board, Ser 2004 A COPs ROCs II-R Ser 6008 (FGIC) 1.14 07/08/04 4,200,000 18,600 Tampa Bay Water, Utility System Ser 2002 (AMT) 1.15 07/08/04 18,600,000 16,340 Volusia County Health Facilities Authority, Pooled Hospital Loan Ser 1985 (FGIC) 1.03 07/08/04 16,340,000 GEORGIA 21,000 Albany-Dougherty County Hospital Authority, Phoebe Putney Memorial Hospital Ser 1991 (Ambac) 1.06 07/08/04 21,000,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 4 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 28,329 Burke County Development Authority, Oglethorpe Power Co Ser 1994 A (FGIC) 1.04% 07/08/04 $ 28,329,000 2,000 Clayton County, Delta Airlines Inc 2000 A 1.10 07/08/04 2,000,000 13,600 Clayton County Hospital Authority, Southern Regional Medical Center Ser 1998 B 1.08 07/08/04 13,600,000 47,315 Private Colleges & Universities Authority, Emory University 2000 Ser B & 2001 Ser B 1.00 07/08/04 47,315,000 HAWAII 13,780 Hawaii, ROCs II-R Ser 6012 1.14 07/08/04 13,780,000 ILLINOIS Chicago, 8,910 Eagle Ser 20041002 Class A (FGIC) 1.14 07/08/04 8,910,000 12,500 Neighborhoods Alive Ser 21 B (MBIA) 1.08 07/08/04 12,500,000 1,610 Chicago Board of Education, Ser 2000 B (FSA) 1.08 07/08/04 1,610,000 Chicago Metropolitan Water Reclamation District, 60,000 2002 Ser A 1.06 07/08/04 60,000,000 37,350 2002 Ser E 1.02 07/08/04 37,350,000 30,500 Cook County, Ser 2002 B 1.11 07/08/04 30,500,000 Illinois Development Finance Authority, 2,300 Jewish Federation of Metropolitan Chicago Ser 2002 (Ambac) 1.10 07/01/04 2,300,000 8,000 Palos Community Hospital Ser 1998 1.08 07/08/04 8,000,000 1,500 Illinois Health Facilities Authority, Northwestern Memorial Hospital Ser 2004 B Subser 2004 B-1 1.10 07/01/04 1,500,000 11,480 Kane, Cook & DuPage Counties, School District #U-46 PUTTERs Ser 426 (Ambac) 1.12 07/08/04 11,480,000 12,550 Roaring Fork Municipal Products, Class A Certificates Ser 2004-1 (Ambac) 1.16 07/08/04 12,550,000 INDIANA Indiana Health Facility Financing Authority, 35,000 Ascension Health Ser 2001 A 0.98 07/02/04 35,000,000 35,000 Ascension Health Ser 2001 A (DD) 1.73 11/15/04 35,000,000 1,900 Clarian Health Obligated Group Ser 2000 B 1.08 07/01/04 1,900,000 4,000 Clarian Health Obligated Group Ser 2003 H 1.08 07/08/04 4,000,000 2,580 Indianapolis, Health Quest Realty XXI, Ser 1994 A TOBs (FHA) 1.26 07/08/04 2,580,000 21,910 Indianapolis Local Public Improvement Bond Bank, Ser 2002 F-2 (MBIA) (DD) 1.05 07/08/04 21,910,000 1,700 Merrillville, Southlake Care Center Ser 1992 A TOBs (FHA) 1.26 07/08/04 1,700,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 5 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 2,515 South Bend, Fountainview Place Ser 1992 A TOBs (FHA) 1.26% 07/08/04 $ 2,515,000 5,790 University of Southern Indiana, Student Fee ROCs II-R Ser 2117 (Ambac) 1.14 07/08/04 5,790,000 KENTUCKY 4,200 Breckinridge County, Kentucky Association of Counties Leasing Trust 2002 Ser A 1.10 07/01/04 4,200,000 22,500 Kenton County Airport Board, Flight Safety International Inc Ser 2001A (AMT) 1.15 07/08/04 22,500,000 26,055 Louisville & Jefferson County Metropolitan Sewer District, Sewer and Drainage System Ser 2003 A (FSA) 1.05 07/08/04 26,055,000 LOUISIANA 12,100 New Orleans Aviation Board, Ser 1993 B (MBIA) 1.08 07/08/04 12,100,000 MARYLAND 5,000 Maryland Health & Higher Educational Facilities Authority, Catholic Health Initiatives Ser 1997 B (DD) 1.00 07/08/04 5,000,000 MASSACHUSETTS 44,500 Massachusetts Bay Transportation Authority, Ser 2000 1.02 07/08/04 44,500,000 11,505 Massachusetts Development Finance Agency, Dana Hall School Ser 2004 1.07 07/08/04 11,505,000 22,100 Massachusetts Water Resources Authority, Multi-Modal Sub 2001 Ser A (FGIC) 1.05 07/08/04 22,100,000 MICHIGAN Detroit, 20,000 Sewage Disposal System Second Lien Ser 2000 E (FGIC) 1.05 09/02/04 20,000,000 51,155 Sewage Disposal System Senior Lien Ser 2001 C-1 (FSA) 1.08 07/08/04 51,155,000 Detroit, 25,000 Water Supply System Refg Second Lien Ser 2001-C (FGIC) 1.05 07/08/04 25,000,000 8,300 Water Supply System Refg Senior Lien Ser 2003-D (MBIA) 1.05 07/08/04 8,300,000 22,120 Holt Public Schools, Ser 2002 1.06 07/08/04 22,120,000 21,300 Michigan Housing Development Authority, Rental Housing 2002 Ser B (MBIA) 1.06 07/08/04 21,300,000 6,000 Michigan Strategic Fund, The Van Andel Research Institute Ser 2001 (DD) 1.08 07/08/04 6,000,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 6 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 9,500 Oakland University, Ser 2001 (FGIC) 1.06% 07/08/04 $ 9,500,000 5,000 Woodhaven-Brownstone School District, Ser 2004 B 1.50 11/01/04 5,007,719 MINNESOTA 5,000 Minneapolis, Guthrie Theater on the River Ser 2003 A 1.08 07/08/04 5,000,000 9,735 Minnesota Housing Finance Agency, Residential Housing 2002 Ser C 1.20 05/18/05 9,735,000 6,500 University of Minnesota Regents, Ser 2001A 1.09 07/08/04 6,500,000 MISSISSIPPI 3,200 Jackson County, Chevron USA Inc Ser 1993 1.05 07/01/04 3,200,000 35,200 Mississippi, Capital Improvement Ser 2003 E (DD) 1.06 07/08/04 35,200,000 30,500 Perry County, Leaf River Forest Products Inc Ser 2002 1.08 07/08/04 30,500,000 MISSOURI 25,000 Lee's Summit, Multifamily Housing Ser 2001 A 1.42 07/08/04 25,000,000 Missouri Health & Educational Facilities Authority, 4,800 Cox Health System Ser 1997 (MBIA) 1.08 07/01/04 4,800,000 38,600 Stowers Institute Ser 2000 (MBIA) & Ser 2002 (MBIA) 1.08 07/08/04 38,600,000 3,600 Washington University Ser 1985 A 1.04 07/08/04 3,600,000 1,600 Washington University Ser 2000 B 1.10 07/01/04 1,600,000 600 University of Missouri, Ser 2000 B 1.10 07/01/04 600,000 NEBRASKA 11,000 American Public Energy Agency, National Public Gas Agency 2003 Ser A 1.05 07/08/04 11,000,000 Omaha, 7,000 Eagle # 2004001 Class A 1.14 07/08/04 7,000,000 5,445 Omaha Convention Center & Arena Ser 2004 PT-2141 1.12 07/08/04 5,445,000 NEVADA 28,700 Clark County, Airport Improvement Refg 1993 Ser A (MBIA) (DD) 1.06 07/08/04 28,700,000 NEW HAMPSHIRE 16,000 New Hampshire Health & Education Facilities Authority, Dartmouth College Ser 2002 1.01 07/08/04 16,000,000 NEW JERSEY 39,800 New Jersey Turnpike Authority, Ser 1991 D (FGIC) 1.05 07/08/04 39,800,000 NEW YORK Jay Street Development Corporation, 500 Fiscal 2001 Ser A-1 1.00 07/08/04 500,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 7 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 1,400 Fiscal 2001 Ser A-3 1.07% 07/08/04 $ 1,400,000 10,000 Long Island Power Authority, Electric System Ser 2 Subser 2A 1.00 07/08/04 10,000,000 1,200 Suffolk County Water Authority, Ser 2003 BANs 1.07 07/08/04 1,200,000 NORTH CAROLINA 10,800 Charlotte, Fiscal Year 2002 Ser C COPs 1.08 07/08/04 10,800,000 40,000 Charlotte-Mecklenburg Hospital Authority, Health Care System Ser 1996 C 1.05 07/08/04 40,000,000 2,900 Durham, Ser 1993A COPs 1.09 07/08/04 2,900,000 Mecklenburg County, 12,625 Ser 2001 COPs 1.08 07/08/04 12,625,000 9,155 Ser 2004 COPs 1.07 07/08/04 9,155,000 57,000 North Carolina, Ser 2002 C 1.05 07/08/04 57,000,000 North Carolina Medical Care Commission, 32,600 Firsthealth of the Carolinas Ser 2002 1.07 07/08/04 32,600,000 600 Mission-St Joseph's Health System Ser 2003 1.13 07/08/04 600,000 33,400 North Carolina Baptist Hospitals Ser 2000 1.05 07/08/04 33,400,000 OHIO 5,625 Ohio, Ser 2004 PT-2137 1.12 07/08/04 5,625,000 OKLAHOMA Oklahoma Water Resources Board, State Loan Program 8,610 Ser 1995 0.98 09/01/04 8,610,000 12,620 Ser 1999 1.02 09/01/04 12,620,000 25,000 Ser 2001 0.98 10/01/04 25,000,000 10,000 Tulsa County Industrial Authority, Capital Improvement Ser 2003 A 1.40 11/15/04 10,000,000 OREGON 15,000 Clackamas County Hospital Facility Authority, Legacy Health System Ser 2003 1.08 07/08/04 15,000,000 18,600 Oregon Health Sciences University, OHSU Medical Group Ser 2004 A 1.06 07/08/04 18,600,000 PENNSYLVANIA 6,250 Geisinger Authority, Geisinger Health System Ser 2000 1.10 07/01/04 6,250,000 20,635 Northampton County General Purpose Authority, Lehigh University Ser 2000 B 1.06 07/08/04 20,635,000 Pennsylvania Higher Education Assistance Agency, 33,000 Student Loan 1988 Ser B (Ambac) (AMT) 1.05 07/08/04 33,000,000 15,000 Student Loan 2001 Ser A (Ambac) (AMT) 1.13 07/08/04 15,000,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 8 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 4,800 Pennsylvania Higher Educational Facilities Authority, Carnegie Mellon University Ser 1995 B,C & D 1.10% 07/01/04 $ 4,800,000 25,000 Pennsylvania Turnpike Commission, 2002 Ser A-2 1.04 07/08/04 25,000,000 27,800 Philadelphia, Water & Wastewater Ser 2003 (FSA) 1.07 07/08/04 27,800,000 2,700 Philadelphia Hospitals & Higher Education Facilities Authority, Children's Hospital of Philadelphia Ser 2002 B 1.10 07/01/04 2,700,000 7,700 Philadelphia Industrial Development Authority, The Fox Chase Cancer Center Ser 1997 1.10 07/01/04 7,700,000 38,300 Washington County Authority, The Trustees of the University of Pennsylvania Ser 2004 (DD) 1.08 07/08/04 38,300,000 23,300 York General Authority, Harrisburg School District Subser 1996B (Ambac) 1.09 07/08/04 23,300,000 RHODE ISLAND 23,520 Rhode Island Convention Center Authority, Refg 2001 Ser A (MBIA) 1.08 07/08/04 23,520,000 16,000 Rhode Island Health & Educational Building Corporation, Brown University 2003 Ser B 1.06 07/08/04 16,000,000 SOUTH CAROLINA 13,100 Florence County, McLeod Regional Medical Center Ser 1985 A (FGIC) 1.08 07/08/04 13,100,000 24,000 Greenwood County, Fuji Photo Film Inc Ser 2001 (AMT) 1.17 07/08/04 24,000,000 5,000 South Carolina Jobs Economic Development Authority, Burroughs & Chapin Business Park Ser 2002 1.13 07/08/04 5,000,000 9,845 South Carolina Public Service Authority, ROCs II-R Ser 2098 (Ambac) & Ser 6007 (Ambac) 1.14 07/08/04 9,845,000 TENNESSEE Clarksville Public Building Authority, 16,890 Pooled Financing Ser 1997 1.08 07/08/04 16,890,000 2,150 Pooled Financing Ser 2001 1.10 07/01/04 2,150,000 6,500 Memphis, Airport Refg Ser 1995 B (AMT) 1.10 07/08/04 6,500,000 10,000 Metropolitan Government of Nashville & Davidson County Health & Educational Facilities Board, Ensworth School Ser 2002 1.08 07/08/04 10,000,000 47,770 Montgomery County Public Building Authority, Pooled Financing Ser 1997 & 1999 1.08 07/08/04 47,770,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 9 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ TEXAS Bell County Health Facilities Development Corporation, Scott & White Memorial Hospital $ 6,370 Ser 2000B-1 (MBIA) & Ser 2000B-2 (MBIA) 1.10% 07/01/04 $ 6,370,000 19,970 Ser 2001-1 (MBIA) & Ser 2001-2 (MBIA) 1.10 07/01/04 19,970,000 1,795 Bexar County Housing Finance Corporation, Multi-Family PT-2082 1.12 07/08/04 1,795,000 21,000 Brownsville, Utilities System Sub Lien Ser 2002 B (MBIA) 1.03 07/08/04 21,000,000 19,519 Garland Health Facilities Development Corporation, Chambrel Club Hill Ser 2002 1.08 07/08/04 19,519,000 Harris County Health Facilities Development Corporation, 56,700 Methodist Hospital Ser 2002 1.10 07/01/04 56,700,000 28,500 St Luke's Episcopal Hospital Ser 2001 B 1.10 07/01/04 28,500,000 3,400 Texas Medical Center Ser 1999 B (FSA) 1.10 07/01/04 3,400,000 26,500 Harris County Industrial Development Corporation, Baytank Inc Ser 1998 1.04 07/08/04 26,500,000 5,190 Houston, Combined Utility System Ser 2004 ROCs II-R Ser 4559 (FSA) 1.14 07/08/04 5,190,000 8,000 Lower Neches Valley Authority, Chevron USA Inc Ser 1987 0.95 08/16/04 8,000,000 8,900 Mansfield Independent School District, ROCs II-R Ser 6005 1.14 07/08/04 8,900,000 5,380 Northside Independent School District, Ser 2003 PT-2254 1.11 07/08/04 5,380,000 San Antonio, 6,025 ROCs II-R Ser 6003 (FSA) 1.14 07/08/04 6,025,000 19,900 Water System Ser 2003 B (MBIA) 1.05 07/08/04 19,900,000 7,150 Texas Department of Housing and Community Affairs, High Point III Development Ser 1993 A 1.06 07/08/04 7,150,000 23,640 Texas Municipal Gas Corporation, Senior Lien Ser 1998 (FSA) 1.06 07/08/04 23,640,000 8,000 University of Texas System, Refg Ser 2001 A 1.04 07/08/04 8,000,000 8,800 West Side Calhoun County, Sohio Chemical Co Ser 1985 1.10 07/01/04 8,800,000 UTAH Intermountain Power Agency, 16,750 1985 Ser E (Ambac) 0.93 09/15/04 16,750,000 17,600 1985 Ser E (Ambac) 1.24 12/01/04 17,600,000 35,900 1985 Ser F (Ambac) 0.92 09/15/04 35,900,000 3,600 Murray City, IHC Health Services Inc Ser 2003 C 1.10 07/01/04 3,600,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 10 <Page> <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - ------------------------------------------------------------------------------------------------------------------------ $ 2,000 Salt Lake County, Service Station Holdings British Petroleum Ser 1994B 1.10% 07/01/04 $ 2,000,000 VIRGINIA 12,500 Chesapeake Hospital Authority, Chesapeake General Hospital Ser 2001A 1.08 07/08/04 12,500,000 7,590 Fairfax County, Ser 2004 A PUTTERs Ser 461 1.12 07/08/04 7,590,000 51,100 Loudoun County Industrial Development Authority, Howard Hughes Medical Institute Ser 2003 F 1.05 07/08/04 51,100,000 WASHINGTON 3,595 King County School District #216, ROCs II-R Ser 5026 (FSA) 1.14 07/08/04 3,595,000 4,195 Pierce County, Puyallup School District No 3 PUTTERs Ser 415 (FSA) 1.12 07/08/04 4,195,000 15,000 Port of Seattle, 1997 Ser A (AMT) 1.14 07/08/04 15,000,000 6,800 Washington Health Care Facilities Authority, Providence Services Ser 2002 A (MBIA) 1.10 07/01/04 6,800,000 WISCONSIN 9,500 Brokaw, Wausau Paper Mills Co Ser 1995 (AMT) 1.38 07/08/04 9,500,000 3,300 Wisconsin, PUTTERs Ser 417 (MBIA) 1.12 07/08/04 3,300,000 3,250 Wisconsin Health & Educational Facilities Authority, Ministry Health Care PUTTERs Ser 399 (MBIA) 1.12 07/08/04 3,250,000 --------------- TOTAL SHORT-TERM VARIABLE RATE MUNICIPAL OBLIGATIONS (COST $2,404,730,719) 2,404,730,719 --------------- <Caption> YIELD TO MATURITY COUPON MATURITY ON DATE OF RATE DATE PURCHASE ------ -------- ---------- TAX-EXEMPT COMMERCIAL PAPER (8.4%) ALABAMA 13,000 Montgomery County Industrial Development Board, PECO Energy 1994 Ser A 1.10% 08/24/04 1.10% 13,000,000 COLORADO 7,500 Regional Transportation District, Sub Lien Sales Tax Ser 2001 A 1.15 08/12/04 1.15 7,500,000 DISTRICT OF COLUMBIA 25,500 District of Columbia, The American National Red Cross Ser 2000 1.07 07/19/04 1.07 25,500,000 </Table> SEE NOTES TO FINANCIAL STATEMENTS 11 <Page> <Table> <Caption> YIELD TO PRINCIPAL MATURITY AMOUNT IN COUPON MATURITY ON DATE OF THOUSANDS RATE DATE PURCHASE VALUE - ------------------------------------------------------------------------------------------------------------------------ FLORIDA $ 5,000 Collier County Health Facilities Authority, Cleveland Clinic Health System Ser 2003 C-2 1.15% 08/26/04 1.15% $ 5,000,000 15,000 Hillsborough County, Ser 2002 A 1.12 08/26/04 1.12 15,000,000 25,000 Jacksonville Electric Authority, 2000 Sub Ser F 1.00 08/10/04 1.00 25,000,000 17,445 Jacksonville Health Facilities Authority, St Luke's Hospital Association Ser 2001 A 1.10 08/25/04 1.10 17,445,000 MARYLAND 20,000 Maryland Health & Higher Educational Facilities Authority, The Johns Hopkins Hospital Ser C 1.12 08/23/04 1.12 20,000,000 MASSACHUSETTS 8,500 Massachusetts Water Resources Authority, Ser 1999 1.10 08/19/04 1.10 8,500,000 MINNESOTA Rochester, Mayo Foundation/Mayo Medical Center 14,000 Ser 1992 C 1.12 08/24/04 1.12 14,000,000 10,000 Ser 2000 C 1.12 07/27/04 1.12 10,000,000 NEVADA 6,000 Las Vegas Valley Water District, Water Ser 2004 A 0.95 07/20/04 0.95 6,000,000 NEW HAMPSHIRE 14,000 New Hampshire, Ser A 1998 BANs 1.10 07/14/04 1.10 14,000,000 PENNSYLVANIA 8,000 Montgomery County Industrial Development Authority, PECO Energy Co 1994 Ser A 1.10 08/18/04 1.10 8,000,000 TENNESSEE 20,000 Shelby County Health Educational & Housing Facilities Board, Baptist Memorial Hospital Ser 2000 1.08 07/28/04 1.08 20,000,000 TEXAS 30,000 Dallas Area Rapid Transit, Senior Sub Lien Ser 2001 1.10 07/28/04 1.10 30,000,000 --------------- TOTAL TAX-EXEMPT COMMERCIAL PAPER (COST $238,945,000) 238,945,000 --------------- </Table> SEE NOTES TO FINANCIAL STATEMENTS 12 <Page> <Table> <Caption> YIELD TO PRINCIPAL MATURITY AMOUNT IN COUPON MATURITY ON DATE OF THOUSANDS RATE DATE PURCHASE VALUE - ------------------------------------------------------------------------------------------------------------------------ SHORT-TERM MUNICIPAL NOTES & BONDS (12.5%) CALIFORNIA $ 22,500 California School Cash Reserve Program Authority, 2003 Pool Ser A (Ambac), dtd 07/03/03 2.00% 07/06/04 0.90% $ 22,503,357 COLORADO 38,000 Colorado, Education Loan Ser 2003 B TRANs, dtd 12/11/03 2.00 08/09/04 1.21 38,031,600 ILLINOIS 7,270 Chicago Park District, Tax Anticipation Warrants Ser 2004 A, dtd 06/23/04 3.00 05/02/05 1.55 7,356,994 30,000 Illinois, Certificates Ser 2004, dtd 06/23/04 2.00 10/22/04 1.15 30,078,166 3,000 Illinois Finance Authority, Ser 2004-A School Notes, dtd 02/25/04 1.80 12/01/04 0.96 3,006,836 INDIANA Indiana Bond Bank, 25,000 Advance Funding Notes Ser 2004 A, dtd 01/29/04 2.00 01/25/05 1.10 25,126,409 16,000 Midyear Funding Notes Ser 2004 A, dtd 06/24/04 2.50 01/26/05 1.38 16,101,249 25,000 Indianapolis Local Public Improvement Bond Bank, Ser 2004 B Notes, dtd 01/14/04 2.00 07/06/04 1.00 25,003,398 KENTUCKY 20,000 Kentucky Association of Counties Advance Revenue Program, Ser 2004 A COPs TRANs, dtd 07/01/04 (WI) 3.00 06/30/05 1.68 20,258,800 MICHIGAN 25,000 Michigan, Ser 2004 A, dtd 02/04/04 2.00 09/30/04 0.98 25,063,205 22,500 Michigan Municipal Bond Authority, Ser 2003 B-1, dtd 08/20/03 2.00 08/20/04 1.02 22,529,815 NEW YORK 14,000 Spencer-Van Etten Central School District, Ser 2004 BANs, dtd 06/17/04 3.00 06/17/05 1.88 14,148,632 OHIO 20,575 Central Ohio Solid Waste Authority, Ser 2004 BANs, dtd 06/10/04 2.50 12/10/04 1.29 20,684,466 OREGON 22,000 Oregon, 2003 Ser A TANs, dtd 10/22/03 2.25 11/15/04 1.07 22,096,139 </Table> SEE NOTES TO FINANCIAL STATEMENTS 13 <Page> <Table> <Caption> YIELD TO PRINCIPAL MATURITY AMOUNT IN COUPON MATURITY ON DATE OF THOUSANDS RATE DATE PURCHASE VALUE - ------------------------------------------------------------------------------------------------------------------------ TEXAS Texas, $ 37,000 Ser 2003 TRANs, dtd 09/02/03 2.00% 08/31/04 1.12% $ 37,053,697 18,000 Ser 2003 TRANs, dtd 09/02/03 2.00 08/31/04 1.15 18,025,218 10,000 Ser 2003 TRANs, dtd 09/02/03 2.00 08/31/04 1.16 10,013,842 --------------- TOTAL SHORT-TERM MUNICIPAL NOTES & Bonds (COST $357,081,823) 357,081,823 --------------- TOTAL INVESTMENTS (COST $3,000,757,542) (a) (b) 105.0% 3,000,757,542 LIABILITIES IN EXCESS OF OTHER ASSETS (5.0) (143,095,894) ----- --------------- NET ASSETS 100.0% $ 2,857,661,648 ===== =============== </Table> - ---------- AMT ALTERNATIVE MINIMUM TAX. BANs BOND ANTICIPATION NOTES. COPs CERTIFICATES OF PARTICIPATION. DD ALL OR A PORTION OF THIS SECURITY WAS PURCHASED ON A DELAYED DELIVERY BASIS. PUTTERs PUTTABLE TAX-EXEMPT RECEIPTS. ROCs RESET OPTION CERTIFICATES. TANs TAX ANTICIPATION NOTES. TOBs TENDER OPTION BONDS. TRANs TAX AND REVENUE ANTICIPATION NOTES. WI SECURITY PURCHASED ON A WHEN-ISSUED BASIS. + RATE SHOWN IS THE RATE IN EFFECT AT JUNE 30, 2004. * DATE ON WHICH THE PRINCIPAL AMOUNT CAN BE RECOVERED THROUGH DEMAND. (a) SECURITIES HAVE BEEN DESIGNATED AS COLLATERAL IN AN AMOUNT EQUAL TO $148,489,057 IN CONNECTION WITH THE PURCHASE OF WHEN-ISSUED AND DELAYED DELIVERY SECURITIES. (b) COST IS THE SAME FOR FEDERAL INCOME TAX PURPOSES. BOND INSURANCE: AMBAC AMBAC ASSURANCE CORPORATION. FGIC FINANCIAL GUARANTY INSURANCE COMPANY. FHA FEDERAL HOUSING ADMINISTRATION. FSA FINANCIAL SECURITY ASSURANCE INC. MBIA MUNICIPAL BOND INVESTORS ASSURANCE CORPORATION. XLCA XL CAPITAL ASSURANCE INC. SEE NOTES TO FINANCIAL STATEMENTS 14 <Page> ACTIVE ASSETS TAX-FREE TRUST FINANCIAL STATEMENTS STATEMENT OF ASSETS AND LIABILITIES JUNE 30, 2004 <Table> ASSETS: Investments in securities, at value (cost $3,000,757,542) $ 3,000,757,542 Interest receivable 6,790,547 Prepaid expenses and other assets 106,124 --------------- TOTAL ASSETS 3,007,654,213 --------------- LIABILITIES: Payable for: Investments purchased 148,489,057 Investment management fee 953,331 Distribution fee 264,699 Payable to bank 158,345 Accrued expenses and other payables 127,133 --------------- TOTAL LIABILITIES 149,992,565 --------------- NET ASSETS $ 2,857,661,648 =============== COMPOSITION OF NET ASSETS: Paid-in-capital $ 2,857,621,572 Accumulated undistributed net investment income 39,234 Accumulated undistributed net realized gain 842 --------------- NET ASSETS $ 2,857,661,648 =============== NET ASSET VALUE PER SHARE, 2,857,662,306 SHARES OUTSTANDING (UNLIMITED SHARES AUTHORIZED OF $.01 PAR VALUE) $ 1.00 =============== </Table> SEE NOTES TO FINANCIAL STATEMENTS 15 <Page> STATEMENT OF OPERATIONS FOR THE YEAR ENDED JUNE 30, 2004 <Table> NET INVESTMENT INCOME: INTEREST INCOME $ 29,915,050 --------------- EXPENSES Investment management fee 10,917,193 Distribution fee 3,038,166 Transfer agent fees and expenses 382,118 Custodian fees 127,331 Registration fees 99,194 Shareholder reports and notices 72,780 Professional fees 62,143 Trustees' fees and expenses 45,165 Other 94,607 --------------- TOTAL EXPENSES 14,838,697 Less: expense offset (126,369) --------------- NET EXPENSES 14,712,328 --------------- NET INVESTMENT INCOME 15,202,722 NET REALIZED GAIN 10,932 --------------- NET INCREASE $ 15,213,654 =============== </Table> SEE NOTES TO FINANCIAL STATEMENTS 16 <Page> STATEMENT OF CHANGES IN NET ASSETS <Table> <Caption> FOR THE YEAR FOR THE YEAR ENDED ENDED JUNE 30, 2004 JUNE 30, 2003 --------------- --------------- INCREASE (DECREASE) IN NET ASSETS: OPERATIONS: Net investment income $ 15,202,722 $ 24,809,627 Net realized gain 10,932 -- --------------- --------------- NET INCREASE 15,213,654 24,809,627 Dividends to shareholders from net investment income (15,205,016) (24,808,438) Net increase (decrease) from transactions in shares of beneficial interest (258,005,853) 169,007,069 --------------- --------------- NET INCREASE (DECREASE) (257,997,215) 169,008,258 NET ASSETS: Beginning of period 3,115,658,863 2,946,650,605 --------------- --------------- END OF PERIOD (INCLUDING ACCUMULATED UNDISTRIBUTED NET INVESTMENT INCOME OF $39,234 AND $41,528, RESPECTIVELY) $ 2,857,661,648 $ 3,115,658,863 =============== =============== </Table> SEE NOTES TO FINANCIAL STATEMENTS 17 <Page> ACTIVE ASSETS TAX-FREE TRUST NOTES TO FINANCIAL STATEMENTS - JUNE 30, 2004 1. ORGANIZATION AND ACCOUNTING POLICIES Active Assets Tax-Free Trust (the "Fund") is registered under the Investment Company Act of 1940, as amended (the "Act"), as a diversified, open-end management investment company. The Fund's investment objective is to provide a high level of daily income which is exempt from federal income tax consistent with stability of principal and liquidity. The Fund was organized as a Massachusetts business trust on March 30, 1981 and commenced operations on July 7, 1981. The following is a summary of significant accounting policies: A. VALUATION OF INVESTMENTS -- Portfolio securities are valued at amortized cost, which approximates market value. B. ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities. Interest income is accrued daily. C. FEDERAL INCOME TAX POLICY -- It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable and nontaxable income to its shareholders. Accordingly, no federal income tax provision is required. D. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends and distributions to shareholders as of the close of each business day. E. USE OF ESTIMATES -- The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates. 2. INVESTMENT MANAGEMENT AGREEMENT Pursuant to an Investment Management Agreement with Morgan Stanley Investment Advisors Inc. (the "Investment Manager"), the Fund pays the Investment Manager a management fee, accrued daily and payable monthly, by applying the following annual rates to the net assets of the Fund determined as of the close of each business day: 0.50% to the portion of daily net assets not exceeding $500 million; 0.425% to the portion of daily net assets exceeding $500 million but not exceeding $750 million; 0.375% to the portion of daily net assets exceeding $750 million but not exceeding $1 billion; 0.35% to the portion of daily net assets exceeding $1 billion but not exceeding $1.5 billion; 0.325% to the portion of daily net assets exceeding $1.5 billion but not exceeding $2 billion; 0.30% to the portion of daily net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275% to the portion of daily net 18 <Page> assets exceeding $2.5 billion but not exceeding $3 billion; 0.25% to the portion of daily net assets exceeding $3 billion but not exceeding $15 billion; and 0.249% to the portion of daily net assets exceeding $15 billion. 3. PLAN OF DISTRIBUTION Morgan Stanley Distributors Inc. (the "Distributor"), an affiliate of the Investment Manager, is the distributor of the Fund's shares and in accordance with a Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act, finances certain expenses in connection with the promotion of sales of Fund shares. Reimbursements for these expenses are made in monthly payments by the Fund to the Distributor, which will in no event exceed an amount equal to a payment at the annual rate of 0.15% of the Fund's average daily net assets during the month. Expenses incurred by the Distributor pursuant to the Plan in any fiscal year will not be reimbursed by the Fund through payments accrued in any subsequent fiscal year. For the year ended June 30, 2004, the distribution fee was accrued at the annual rate of 0.10%. 4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES The cost of purchases and proceeds from sales/maturities of portfolio securities for the year ended June 30, 2004, aggregated $6,549,716,101 and $6,759,395,932, respectively. Morgan Stanley Trust, an affiliate of the Investment Manager and Distributor, is the Fund's transfer agent. The Fund has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Fund who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. Aggregate pension costs for the year ended June 30, 2004, included in Trustees' fees and expenses in the Statement of Operations amounted to $7,361. At June 30, 2004, the Fund had an accrued pension liability of $59,574 which is included in accrued expenses in the Statement of Assets and Liabilities. On December 2, 2003, the Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Effective April 1, 2004, the Fund began an unfunded Deferred Compensation Plan (the "Compensation Plan") which allows each independent Trustee to defer payment of all, or a portion, of the fees he receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Fund. 19 <Page> 5. SHARES OF BENEFICIAL INTEREST Transactions in shares of beneficial interest, at $1.00 per share, were as follows: <Table> <Caption> FOR THE YEAR FOR THE YEAR ENDED ENDED JUNE 30, 2004 JUNE 30, 2003 ---------------- ---------------- Shares sold 10,208,181,474 9,532,821,650 Shares issued in reinvestment of dividends 15,205,016 24,808,438 ---------------- ---------------- 10,223,386,490 9,557,630,088 Shares redeemed (10,481,392,343) (9,388,623,019) ---------------- ---------------- Net increase (decrease) in shares outstanding (258,005,853) 169,007,069 ================ ================ </Table> 6. FEDERAL INCOME TAX STATUS During the year ended June 30, 2004, the Fund utilized $10,090 of its net capital loss carryforward. 7. EXPENSE OFFSET The expense offset represents a reduction of the custodian fees for earnings on cash balances maintained by the Fund. 8. LEGAL MATTERS The Investment Manager, certain affiliates of the Investment Manager, certain officers of such affiliates and certain investment companies advised by the Investment Manager or its affiliates, including the Fund, are named as defendants in a number of similar class action complaints which were recently consolidated. This consolidated action also names as defendants certain individual Trustees and Directors of the Morgan Stanley funds. The consolidated amended complaint generally alleges that defendants, including the Fund, violated their statutory disclosure obligations and fiduciary duties by failing properly to disclose (i) that the Investment Manager and certain affiliates of the Investment Manager allegedly offered economic incentives to brokers and others to recommend the funds advised by the Investment Manager or its affiliates to investors rather than funds managed by other companies, and (ii) that the funds advised by the Investment Manager or its affiliates, including the Fund, allegedly paid excessive commissions to brokers in return for their efforts to recommend these funds to investors. The complaint seeks, among other things, unspecified compensatory damages, rescissionary damages, fees and costs. The defendants have moved to dismiss the action and intend to otherwise vigorously defend it. While the Fund believes that it has meritorious defenses, the ultimate outcome of this matter is not presently determinable at this early stage of the litigation, and no provision has been made in the Fund's financial statements for the effect, if any, of this matter. 20 <Page> ACTIVE ASSETS TAX-FREE TRUST FINANCIAL HIGHLIGHTS Selected ratios and per share data for a share of beneficial interest outstanding throughout each period: <Table> <Caption> FOR THE YEAR ENDED JUNE 30, ----------------------------------------------------------- 2004 2003 2002 2001 2000 -------- -------- -------- -------- -------- SELECTED PER SHARE DATA: Net asset value, beginning of period $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 -------- -------- -------- -------- -------- Net income from investment operations 0.005 0.008 0.014 0.033 0.031 Less dividends from net investment income (0.005) (0.008) (0.014) (0.033) (0.031) -------- -------- -------- -------- -------- Net asset value, end of period $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ======== ======== ======== ======== ======== TOTAL RETURN 0.50% 0.81% 1.38% 3.34% 3.15% RATIOS TO AVERAGE NET ASSETS: Expenses (before expense offset) 0.48% 0.48% 0.48%(1) 0.48% 0.50% Net investment income 0.50% 0.80% 1.38% 3.28% 3.11% SUPPLEMENTAL DATA: Net assets, end of period, in millions $ 2,858 $ 3,116 $ 2,947 $ 3,075 $ 2,660 </Table> - ---------- (1) DOES NOT REFLECT THE EFFECT OF EXPENSE OFFSET OF 0.01%. SEE NOTES TO FINANCIAL STATEMENTS 21 <Page> ACTIVE ASSETS TAX-FREE TRUST REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM TO THE SHAREHOLDERS AND BOARD OF TRUSTEES OF ACTIVE ASSETS TAX-FREE TRUST: We have audited the accompanying statement of assets and liabilities of Active Assets Tax-Free Trust (the "Fund"), including the portfolio of investments, as of June 30, 2004, and the related statements of operations for the year then ended and changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included confirmation of securities owned as of June 30, 2004, by correspondence with the custodian and brokers. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Active Assets Tax-Free Trust as of June 30, 2004, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. Deloitte & Touche LLP NEW YORK, NEW YORK AUGUST 13, 2004 2004 FEDERAL TAX NOTICE (UNAUDITED) For the year ended June 30, 2004, all of the Fund's dividends from net investment income were exempt interest dividends, excludable from gross income for Federal income tax purposes. 22 <Page> ACTIVE ASSETS TAX-FREE TRUST TRUSTEE AND OFFICER INFORMATION INDEPENDENT TRUSTEES: <Table> <Caption> NUMBER OF PORTFOLIOS TERM OF IN FUND POSITION(S) OFFICE AND COMPLEX NAME, AGE AND ADDRESS OF HELD WITH LENGTH OF PRINCIPAL OCCUPATION(S) DURING OVERSEEN OTHER DIRECTORSHIPS INDEPENDENT TRUSTEE REGISTRANT TIME SERVED* PAST 5 YEARS** BY TRUSTEE*** HELD BY TRUSTEE - ------------------------------ ----------- ------------ ------------------------------- ------------- ------------------------- Michael Bozic (63) Trustee Since Private Investor; Director or 208 Director of Weirton Steel c/o Kramer Levin Naftalis & April 1994 Trustee of the Retail Funds Corporation. Frankel LLP (since April 1994) and the Counsel to the Independent Institutional Funds (since Trustees July 2003); formerly Vice 919 Third Avenue Chairman of Kmart Corporation New York, NY (December 1998-October 2000), Chairman and Chief Executive Officer of Levitz Furniture Corporation (November 1995-November 1998) and President and Chief Executive Officer of Hills Department Stores (May 1991-July 1995); formerly variously Chairman, Chief Executive Officer, President and Chief Operating Officer (1987-1991) of the Sears Merchandise Group of Sears, Roebuck & Co. Edwin J. Garn (71) Trustee Since Managing Director of Summit 208 Director of Franklin c/o Summit Ventures LLC January 1993 Ventures LLC; Director or Covey (time management 1 Utah Center Trustee of the Retail Funds systems), BMW Bank of 201 S. Main Street (since January 1993) and the North America, Inc. Salt Lake City, UT Institutional Funds (since (industrial loan July 2003); member of the corporation), United Utah Regional Advisory Board Space Alliance (joint of Pacific Corp.; formerly venture between United States Senator Lockheed Martin and the (R-Utah) (1974-1992) and Boeing Company) and Chairman, Senate Banking Nuskin Asia Pacific Committee (1980-1986), Mayor (multilevel marketing); of Salt Lake City, Utah member of the board of (1971-1974), Astronaut, Space various civic and Shuttle Discovery (April charitable 12-19, 1985), and Vice organizations. Chairman, Huntsman Corporation (chemical company). Wayne E. Hedien (70) Trustee Since Retired; Director or Trustee 208 Director of The PMI c/o Kramer Levin Naftalis & September of the Retail Funds (since Group Inc. (private Frankel LLP 1997 September 1997) and the mortgage insurance); Counsel to the Independent Institutional Funds (since Trustee and Vice Trustees July 2003); formerly Chairman of The Field 919 Third Avenue associated with the Allstate Museum of Natural New York, NY Companies (1966-1994), most History; director of recently as Chairman of The various other business Allstate Corporation (March and charitable 1993-December 1994) and organizations. Chairman and Chief Executive Officer of its wholly-owned subsidiary, Allstate Insurance Company (July 1989-December 1994). </Table> 23 <Page> <Table> <Caption> NUMBER OF PORTFOLIOS TERM OF IN FUND POSITION(S) OFFICE AND COMPLEX NAME, AGE AND ADDRESS OF HELD WITH LENGTH OF PRINCIPAL OCCUPATION(S) DURING OVERSEEN OTHER DIRECTORSHIPS INDEPENDENT TRUSTEE REGISTRANT TIME SERVED* PAST 5 YEARS** BY TRUSTEE*** HELD BY TRUSTEE - ------------------------------ ----------- ------------ ------------------------------- ------------- ------------------------- Dr. Manuel H. Johnson (55) Trustee Since Senior Partner, Johnson Smick 208 Director of NVR, Inc. c/o Johnson Smick July 1991 International, Inc., a (home construction); International, Inc. consulting firm; Chairman of Chairman and Trustee of 2099 Pennsylvania Avenue, N.W. the Audit Committee and the Financial Suite 950 Director or Trustee of the Accounting Foundation Washington, D.C. Retail Funds (since July (oversight organization 1991) and the Institutional of the Financial Funds (since July 2003); Accounting Standards Co-Chairman and a founder of Board); Director of RBS the Group of Seven Council Greenwich Capital (G7C), an international Holdings (financial economic commission; formerly holding company). Vice Chairman of the Board of Governors of the Federal Reserve System and Assistant Secretary of the U.S. Treasury. Joseph J. Kearns (61) Trustee Since President, Kearns & 209 Director of Electro PMB754 July 2003 Associates LLC (investment Rent Corporation 23852 Pacific Coast Highway consulting); Deputy Chairman (equipment leasing), Malibu, CA of the Audit Committee and The Ford Family Director or Trustee of the Foundation, and the Retail Funds (since July UCLA Foundation. 2003) and the Institutional Funds (since August 1994); previously Chairman of the Audit Committee of the Institutional Funds (October 2001- July 2003); formerly CFO of the J. Paul Getty Trust. Michael E. Nugent (68) Trustee Since General Partner of Triumph 208 Director of various c/o Triumph Capital, L.P. July 1991 Capital, L.P., a private business organizations. 445 Park Avenue investment partnership; New York, NY Chairman of the Insurance Committee and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2001); formerly Vice President, Bankers Trust Company and BT Capital Corporation (1984-1988). Fergus Reid (71) Trustee Since Chairman of Lumelite Plastics 209 Trustee and Director of c/o Lumelite Plastics July 2003 Corporation; Chairman of the certain investment Corporation Governance Committee and companies in the 85 Charles Colman Blvd. Director or Trustee of the JPMorgan Funds complex Pawling, NY Retail Funds (since July managed by J.P. Morgan 2003) and the Institutional Investment Management Funds (since June 1992). Inc. </Table> 24 <Page> INTERESTED TRUSTEES: <Table> <Caption> NUMBER OF PORTFOLIOS TERM OF IN FUND POSITION(S) OFFICE AND COMPLEX NAME, AGE AND ADDRESS OF HELD WITH LENGTH OF PRINCIPAL OCCUPATION(S) DURING OVERSEEN OTHER DIRECTORSHIPS INTERESTED TRUSTEE REGISTRANT TIME SERVED* PAST 5 YEARS** BY TRUSTEE*** HELD BY TRUSTEE - ------------------------------ ----------- ------------ ------------------------------- ------------- ------------------------- Charles A. Fiumefreddo (71) Chairman of Since Chairman and Director or 208 None c/o Morgan Stanley Trust the Board July 1991 Trustee of the Retail Funds Harborside Financial Center, and Trustee (since July 1991) and the Plaza Two, Institutional Funds (since Jersey City, NJ July 2003); formerly Chief Executive Officer of the Retail Funds (until September 2002). James F. Higgins (56) Trustee Since Director or Trustee of the 208 Director of AXA c/o Morgan Stanley Trust June 2000 Retail Funds (since June Financial, Inc. and The Harborside Financial Center, 2000) and the Institutional Equitable Life Plaza Two, Funds (since July 2003); Assurance Society of Jersey City, NJ Senior Advisor of Morgan the United States Stanley (since August 2000); (financial services). Director of the Distributor and Dean Witter Realty Inc.; previously President and Chief Operating Officer of the Private Client Group of Morgan Stanley (May 1999- August 2000), and President and Chief Operating Officer of Individual Securities of Morgan Stanley (February 1997-May 1999). </Table> - ---------- * THIS IS THE EARLIEST DATE THE TRUSTEE BEGAN SERVING THE FUNDS ADVISED BY MORGAN STANLEY INVESTMENT ADVISORS INC. (THE "INVESTMENT MANAGER") (THE "RETAIL FUNDS"). ** THE DATES REFERENCED BELOW INDICATING COMMENCEMENT OF SERVICES AS DIRECTOR/TRUSTEE FOR THE RETAIL FUNDS AND THE FUNDS ADVISED BY MORGAN STANLEY INVESTMENT MANAGEMENT INC. AND MORGAN STANLEY AIP GP LP (THE "INSTITUTIONAL FUNDS") REFLECT THE EARLIEST DATE THE DIRECTOR/TRUSTEE BEGAN SERVING THE RETAIL OR INSTITUTIONAL FUNDS AS APPLICABLE. *** THE FUND COMPLEX INCLUDES ALL OPEN-END AND CLOSED-END FUNDS (INCLUDING ALL OF THEIR PORTFOLIOS) ADVISED BY THE INVESTMENT MANAGER AND ANY FUNDS THAT HAVE AN INVESTMENT ADVISOR THAT IS AN AFFILIATED PERSON OF THE INVESTMENT MANAGER (INCLUDING BUT NOT LIMITED TO MORGAN STANLEY INVESTMENT MANAGEMENT INC.). 25 <Page> OFFICERS: <Table> <Caption> TERM OF POSITION(S) OFFICE AND NAME, AGE AND ADDRESS OF HELD WITH LENGTH OF EXECUTIVE OFFICER REGISTRANT TIME SERVED* PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS** - -------------------------------- ------------------- ------------------- --------------------------------------------------- Mitchell M. Merin (50) President Since May 1999 President and Chief Operating Officer of Morgan 1221 Avenue of the Americas Stanley Investment Management Inc.; President, New York, NY Director and Chief Executive Officer of the Investment Manager and Morgan Stanley Services; Chairman and Director of the Distributor; Chairman and Director of the Transfer Agent; Director of various Morgan Stanley subsidiaries; President of the Institutional Funds (since July 2003) and President of the Retail Funds (since May 1999); Trustee (since July 2003) and President (since December 2002) of the Van Kampen Closed-End Funds; Trustee (since May 1999) and President (since October 2002) of the Van Kampen Open-End Funds. Barry Fink (49) Vice President Since General Counsel (since May 2000) and Managing 1221 Avenue of the Americas February 1997 Director (since December 2000) of Morgan Stanley New York, NY Investment Management; Managing Director (since December 2000), Secretary (since February 1997) and Director (since July 1998) of the Investment Manager and Morgan Stanley Services; Vice President of the Retail Funds; Assistant Secretary of Morgan Stanley DW; Vice President of the Institutional Funds (since July 2003); Managing Director, Secretary and Director of the Distributor; previously Secretary (February 1997- July 2003) and General Counsel (February 1997-April 2004) of the Retail Funds; Vice President and Assistant General Counsel of the Investment Manager and Morgan Stanley Services (February 1997-December 2001). Ronald E. Robison (65) Executive Vice Since Principal Executive Officer-Office of the Funds 1221 Avenue of the Americas President and April 2003 (since November 2003); Managing Director of Morgan New York, NY Principal Stanley & Co. Incorporated, Managing Director of Executive Morgan Stanley; Managing Director, Chief Officer Administrative Officer and Director of the Investment Manager and Morgan Stanley Services; Chief Executive Officer and Director of the Transfer Agent; Managing Director and Director of the Distributor; Executive Vice President and Principal Executive Officer of the Institutional Funds (since July 2003) and the Retail Funds (since April 2003); Director of Morgan Stanley SICAV (since May 2004); previously President and Director of the Institutional Funds (March 2001-July 2003) and Chief Global Operations Officer and Managing Director of Morgan Stanley Investment Management Inc. Joseph J. McAlinden (61) Vice President Since July 1995 Managing Director and Chief Investment Officer of 1221 Avenue of the Americas the Investment Manager and Morgan Stanley New York, NY Investment Management Inc., Director of the Transfer Agent, Chief Investment Officer of the Van Kampen Funds; Vice President of the Institutional Funds (since July 2003) and the Retail Funds (since July 1995). Stefanie V. Chang (37) Vice President Since July 2003 Executive Director of Morgan Stanley & Co. 1221 Avenue of the Americas Incorporated, Morgan Stanley Investment Management New York, NY Inc., and the Investment Manager; Vice President of the Institutional Funds (since December 1997) and the Retail Funds (since July 2003); formerly practiced law with the New York law firm of Rogers & Wells (now Clifford Chance US LLP). </Table> 26 <Page> <Table> <Caption> TERM OF POSITION(S) OFFICE AND NAME, AGE AND ADDRESS OF HELD WITH LENGTH OF EXECUTIVE OFFICER REGISTRANT TIME SERVED* PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS** - -------------------------------- ------------------- ------------------- --------------------------------------------------- Francis J. Smith (38) Treasurer and Chief Treasurer since Executive Director of the Investment Manager and c/o Morgan Stanley Trust Financial Officer July 2003 and Morgan Stanley Services (since December 2001); Harborside Financial Center, Chief Financial previously Vice President of the Retail Funds Plaza Two, Officer since (September 2002-July 2003), and Vice President of Jersey City, NJ September 2002 the Investment Manager and Morgan Stanley Services (August 2000-November 2001) and Senior Manager at PricewaterhouseCoopers LLP (January 1998-August 2000). Thomas F. Caloia (58) Vice President Since July 2003 Executive Director (since December 2002) and c/o Morgan Stanley Trust Assistant Treasurer of the Investment Manager, the Harborside Financial Center, Distributor and Morgan Stanley Services; Plaza Two, previously Treasurer of the Retail Funds (April Jersey City, NJ 1989-July 2003); formerly First Vice President of the Investment Manager, the Distributor and Morgan Stanley Services. Mary E. Mullin (37) Secretary Since July 2003 Executive Director of Morgan Stanley & Co. 1221 Avenue of the Americas Incorporated, Morgan Stanley Investment Management New York, NY Inc. and the Investment Manager; Secretary of the Institutional Funds (since June 1999) and the Retail Funds (since July 2003); formerly practiced law with the New York law firms of McDermott, Will & Emery and Skadden, Arps, Slate, Meagher & Flom LLP. </Table> - ---------- * THIS IS THE EARLIEST DATE THE OFFICER BEGAN SERVING THE RETAIL FUNDS. EACH OFFICER SERVES AN INDEFINITE TERM, UNTIL HIS OR HER SUCCESSOR IS ELECTED. ** THE DATES REFERENCED BELOW INDICATING COMMENCEMENT OF SERVICE AS AN OFFICER FOR THE RETAIL AND INSTITUTIONAL FUNDS REFLECT THE EARLIEST DATE THE OFFICER BEGAN SERVING THE RETAIL OR INSTITUTIONAL FUNDS AS APPLICABLE. 27 <Page> TRUSTEES Michael Bozic Charles A. Fiumefreddo Edwin J. Garn Wayne E. Hedien James F. Higgins Dr. Manuel H. Johnson Joseph J. Kearns Michael E. Nugent Fergus Reid OFFICERS Charles A. Fiumefreddo CHAIRMAN OF THE BOARD Mitchell M. Merin PRESIDENT Ronald E. Robison EXECUTIVE VICE PRESIDENT and PRINCIPAL EXECUTIVE OFFICER Barry Fink VICE PRESIDENT Joseph J. McAlinden VICE PRESIDENT Stefanie V. Chang VICE PRESIDENT Francis J. Smith TREASURER and CHIEF FINANCIAL OFFICER Thomas F. Caloia VICE PRESIDENT Mary E. Mullin SECRETARY TRANSFER AGENT Morgan Stanley Trust Harborside Financial Center, Plaza Two Jersey City, New Jersey 07311 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deloitte & Touche LLP Two World Financial Center New York, New York 10281 INVESTMENT MANAGER Morgan Stanley Investment Advisors Inc. 1221 Avenue of the Americas New York, New York 10020 This report is submitted for the general information of the shareholders of the Fund. For more detailed information about the Fund, its fees and expenses and other pertinent information, please read its Prospectus. The Fund's Statement of Additional Information contains additional information about the Fund, including its trustees. It is available, without charge, by calling (800) 869-NEWS. This report is not authorized for distribution to prospective investors in the Fund unless preceded or accompanied by an effective Prospectus. Read the Prospectus carefully before investing. Investments and services offered through Morgan Stanley DW Inc., member SIPC. Morgan Stanley Distributors Inc., member NASD. (C) 2004 Morgan Stanley [MORGAN STANLEY LOGO] RA04-00468P-Y06/04 [GRAPHIC] MORGAN STANLEY FUNDS ACTIVE ASSETS TAX-FREE TRUST ANNUAL REPORT JUNE 30, 2004 [MORGAN STANLEY LOGO] <Page> Item 2. Code of Ethics. (a) The Fund has adopted a code of ethics (the "Code of Ethics") that applies to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the Fund or a third party. (b) No information need be disclosed pursuant to this paragraph. (c) Not applicable. (d) Not applicable. (e) Not applicable. (f) (1) The Fund's Code of Ethics is attached hereto as Exhibit A. (2) Not applicable. (3) Not applicable. Item 3. Audit Committee Financial Expert. The Fund's Board of Trustees has determined that it has two "audit committee financial experts" serving on its audit committee, each of whom are "independent" Trustees: Dr. Manuel H. Johnson and Joseph J. Kearns. Under applicable securities laws, a person who is determined to be an audit committee financial expert will not be deemed an "expert" for any purpose, including without limitation for the purposes of Section 11 of the Securities Act of 1933, as a result of being designated or identified as an audit committee financial expert. The designation or identification of a person as an audit committee financial expert does not impose on such person any duties, obligations, or liabilities that are greater than the duties, obligations, and liabilities imposed on such person as a member of the audit committee and Board of Trustees in the absence of such designation or identification. <Page> Item 4. Principal Accountant Fees and Services. (a)(b)(c)(d) and (g). Based on fees billed for the periods shown: 2004 <Table> <Caption> REGISTRANT COVERED ENTITIES(1) AUDIT FEES $ 26,761 N/A NON-AUDIT FEES AUDIT-RELATED FEES $ 452(2) $ 3,225,276(2) TAX FEES $ 4,529(3) $ 610,053(4) ALL OTHER FEES $ - $ - TOTAL NON-AUDIT FEES $ 4,981 $ 3,835,329 TOTAL $ 31,742 $ 3,835,329 </Table> 2003 <Table> <Caption> REGISTRANT COVERED ENTITIES(1) AUDIT FEES $ 25,259 N/A NON-AUDIT FEES AUDIT-RELATED FEES $ 684(2) $ 739,996(2) TAX FEES $ 4,028(3) $ 187,500(4) ALL OTHER FEES $ - $ -(5) TOTAL NON-AUDIT FEES $ 4,712 $ 927,496 TOTAL $ 29,971 $ 927,496 </Table> N/A- Not applicable, as not required by Item 4. (1) Covered Entities include the Adviser (excluding sub-advisors) and any entity controlling, controlled by or under common control with the Adviser that provides ongoing services to the Registrant. (2) Audit-Related Fees represent assurance and related services provided that are reasonably related to the performance of the audit of the financial statements of the Covered Entities' and funds advised by the Adviser or its affiliates, specifically data verification and agreed-upon procedures related to asset securitizations and agreed-upon procedures engagements. (3) Tax Fees represent tax compliance, tax planning and tax advice services provided in connection with the preparation and review of the Registrant's tax returns. (4) Tax Fees represent tax compliance, tax planning and tax advice services provided in connection with the review of Covered Entities' tax returns. (5) All other fees represent project management for future business applications and improving business and operational processes. <Page> (e)(1) The audit committee's pre-approval policies and procedures are as follows: AUDIT COMMITTEE AUDIT AND NON-AUDIT SERVICES PRE-APPROVAL POLICY AND PROCEDURES OF THE MORGAN STANLEY RETAIL AND INSTITUTIONAL FUNDS AS ADOPTED JULY 31, 2003(1) 1. STATEMENT OF PRINCIPLES The Audit Committee of the Board is required to review and, in its sole discretion, pre-approve all Covered Services to be provided by the Independent Auditors to the Fund and Covered Entities in order to assure that services performed by the Independent Auditors do not impair the auditor's independence from the Fund. The SEC has issued rules specifying the types of services that an independent auditor may not provide to its audit client, as well as the audit committee's administration of the engagement of the independent auditor. The SEC's rules establish two different approaches to pre-approving services, which the SEC considers to be equally valid. Proposed services either: may be pre-approved without consideration of specific case-by-case services by the Audit Committee ("GENERAL PRE-APPROVAL"); or require the specific pre-approval of the Audit Committee or its delegate ("SPECIFIC PRE-APPROVAL"). The Audit Committee believes that the combination of these two approaches in this Policy will result in an effective and efficient procedure to pre-approve services performed by the Independent Auditors. As set forth in this Policy, unless a type of service has received general pre-approval, it will require specific pre-approval by the Audit Committee (or by any member of the Audit Committee to which pre-approval authority has been delegated) if it is to be provided by the Independent Auditors. Any proposed services exceeding pre-approved cost levels or budgeted amounts will also require specific pre-approval by the Audit Committee. The appendices to this Policy describe the Audit, Audit-related, Tax and All Other services that have the general pre-approval of the Audit Committee. The term of any general pre-approval is 12 months from the date of pre-approval, unless the Audit Committee considers and provides a different period and states otherwise. The Audit Committee will annually review and pre-approve the services that may be provided by the Independent Auditors without obtaining specific pre-approval from the Audit Committee. The Audit Committee will add to or subtract from the list of general pre-approved services from time to time, based on subsequent determinations. - ---------- (1) This Audit Committee Audit and Non-Audit Services Pre-Approval Policy and Procedures (the "POLICY"), adopted as of the date above, supercedes and replaces all prior versions that may have been adopted from time to time. <Page> The purpose of this Policy is to set forth the policy and procedures by which the Audit Committee intends to fulfill its responsibilities. It does not delegate the Audit Committee's responsibilities to pre-approve services performed by the Independent Auditors to management. The Fund's Independent Auditors have reviewed this Policy and believes that implementation of the Policy will not adversely affect the Independent Auditors' independence. 2. DELEGATION As provided in the Act and the SEC's rules, the Audit Committee may delegate either type of pre-approval authority to one or more of its members. The member to whom such authority is delegated must report, for informational purposes only, any pre-approval decisions to the Audit Committee at its next scheduled meeting. 3. AUDIT SERVICES The annual Audit services engagement terms and fees are subject to the specific pre-approval of the Audit Committee. Audit services include the annual financial statement audit and other procedures required to be performed by the Independent Auditors to be able to form an opinion on the Fund's financial statements. These other procedures include information systems and procedural reviews and testing performed in order to understand and place reliance on the systems of internal control, and consultations relating to the audit. The Audit Committee will approve, if necessary, any changes in terms, conditions and fees resulting from changes in audit scope, Fund structure or other items. In addition to the annual Audit services engagement approved by the Audit Committee, the Audit Committee may grant general pre-approval to other Audit services, which are those services that only the Independent Auditors reasonably can provide. Other Audit services may include statutory audits and services associated with SEC registration statements (on Forms N-1A, N-2, N-3, N-4, etc.), periodic reports and other documents filed with the SEC or other documents issued in connection with securities offerings. The Audit Committee has pre-approved the Audit services in Appendix B.1. All other Audit services not listed in Appendix B.1 must be specifically pre-approved by the Audit Committee (or by any member of the Audit Committee to which pre-approval has been delegated). 4. AUDIT-RELATED SERVICES <Page> Audit-related services are assurance and related services that are reasonably related to the performance of the audit or review of the Fund's financial statements and, to the extent they are Covered Services, the Covered Entities or that are traditionally performed by the Independent Auditors. Because the Audit Committee believes that the provision of Audit-related services does not impair the independence of the auditor and is consistent with the SEC's rules on auditor independence, the Audit Committee may grant general pre-approval to Audit-related services. Audit-related services include, among others, accounting consultations related to accounting, financial reporting or disclosure matters not classified as "Audit services"; assistance with understanding and implementing new accounting and financial reporting guidance from rulemaking authorities; agreed-upon or expanded audit procedures related to accounting and/or billing records required to respond to or comply with financial, accounting or regulatory reporting matters; and assistance with internal control reporting requirements under Forms N-SAR and/or N-CSR. The Audit Committee has pre-approved the Audit-related services in Appendix B.2. All other Audit-related services not listed in Appendix B.2 must be specifically pre-approved by the Audit Committee (or by any member of the Audit Committee to which pre-approval has been delegated). 5. TAX SERVICES The Audit Committee believes that the Independent Auditors can provide Tax services to the Fund and, to the extent they are Covered Services, the Covered Entities, such as tax compliance, tax planning and tax advice without impairing the auditor's independence, and the SEC has stated that the Independent Auditors may provide such services. Pursuant to the preceding paragraph, the Audit Committee has pre-approved the Tax Services in Appendix B.3. All Tax services in Appendix B.3 must be specifically pre-approved by the Audit Committee (or by any member of the Audit Committee to which pre-approval has been delegated). 6. ALL OTHER SERVICES The Audit Committee believes, based on the SEC's rules prohibiting the Independent Auditors from providing specific non-audit services, that other types of non-audit services are permitted. Accordingly, the Audit Committee believes it may grant general pre-approval to those permissible non-audit services classified as All Other services that it believes are routine and recurring services, would not impair the independence of the auditor and are consistent with the SEC's rules on auditor independence. <Page> The Audit Committee has pre-approved the All Other services in Appendix B.4. Permissible All Other services not listed in Appendix B.4 must be specifically pre-approved by the Audit Committee (or by any member of the Audit Committee to which pre-approval has been delegated). 7. PRE-APPROVAL FEE LEVELS OR BUDGETED AMOUNTS Pre-approval fee levels or budgeted amounts for all services to be provided by the Independent Auditors will be established annually by the Audit Committee. Any proposed services exceeding these levels or amounts will require specific pre-approval by the Audit Committee. The Audit Committee is mindful of the overall relationship of fees for audit and non-audit services in determining whether to pre-approve any such services. 8. PROCEDURES All requests or applications for services to be provided by the Independent Auditors that do not require specific approval by the Audit Committee will be submitted to the Fund's Chief Financial Officer and must include a detailed description of the services to be rendered. The Fund's Chief Financial Officer will determine whether such services are included within the list of services that have received the general pre-approval of the Audit Committee. The Audit Committee will be informed on a timely basis of any such services rendered by the Independent Auditors. Requests or applications to provide services that require specific approval by the Audit Committee will be submitted to the Audit Committee by both the Independent Auditors and the Fund's Chief Financial Officer, and must include a joint statement as to whether, in their view, the request or application is consistent with the SEC's rules on auditor independence. The Audit Committee has designated the Fund's Chief Financial Officer to monitor the performance of all services provided by the Independent Auditors and to determine whether such services are in compliance with this Policy. The Fund's Chief Financial Officer will report to the Audit Committee on a periodic basis on the results of its monitoring. Both the Fund's Chief Financial Officer and management will immediately report to the chairman of the Audit Committee any breach of this Policy that comes to the attention of the Fund's Chief Financial Officer or any member of management. 9. ADDITIONAL REQUIREMENTS The Audit Committee has determined to take additional measures on an annual basis to meet its responsibility to oversee the work of the Independent Auditors and to assure the auditor's independence from the Fund, such as reviewing a formal written statement from the Independent Auditors delineating all relationships between the Independent Auditors and the Fund, consistent with Independence Standards Board No. <Page> 1, and discussing with the Independent Auditors its methods and procedures for ensuring independence. 10. COVERED ENTITIES Covered Entities include the Fund's investment adviser(s) and any entity controlling, controlled by or under common control with the Fund's investment adviser(s) that provides ongoing services to the Fund(s). Beginning with non-audit service contracts entered into on or after May 6, 2003, the Fund's audit committee must pre-approve non-audit services provided not only to the Fund but also to the Covered Entities if the engagements relate directly to the operations and financial reporting of the Fund. This list of Covered Entities would include: MORGAN STANLEY RETAIL FUNDS Morgan Stanley Investment Advisors Inc. Morgan Stanley & Co. Incorporated Morgan Stanley DW Inc. Morgan Stanley Investment Management Morgan Stanley Investments LP Van Kampen Asset Management Inc. Morgan Stanley Services Company, Inc. Morgan Stanley Distributors Inc. Morgan Stanley Trust FSB MORGAN STANLEY INSTITUTIONAL FUNDS Morgan Stanley Investment Management Inc. Morgan Stanley Investments LP Morgan Stanley & Co. Incorporated Morgan Stanley Distribution, Inc. Morgan Stanley AIP GP LP Morgan Stanley Alternative Investment Partners LP (e)(2) Beginning with non-audit service contracts entered into on or after May 6, 2003, the audit committee also is required to pre-approve services to Covered Entities to the extent that the services are determined to have a direct impact on the operations or financial reporting of the Registrant. 100% of such services were pre-approved by the audit committee pursuant to the Audit Committee's pre-approval policies and procedures (attached hereto). (f) Not applicable. (g) See table above. (h) The audit committee of the Board of Trustees has considered whether the provision of services other than audit services performed by the auditors to the Registrant and <Page> Covered Entities is compatible with maintaining the auditors' independence in performing audit services. Item 5. Audit Committee of Listed Registrants. Applicable only for reports covering periods ending on or after the earlier of (i) the first annual shareholder meeting after January 15, 2004 or (ii) October 31, 2004. Item 6. [Reserved.] Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies. Applicable only to annual reports filed by closed-end funds. Item 8. [Reserved.] Item 9 - Controls and Procedures (a) The Fund's principal executive officer and principal financial officer have concluded that the Fund's disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the Fund in this Form N-CSR was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, based upon such officers' evaluation of these controls and procedures as of a date within 90 days of the filing date of the report. There were no significant changes or corrective actions with regard to significant deficiencies or material weaknesses in the Fund's internal controls or in other factors that could significantly affect the Fund's internal controls subsequent to the date of their evaluation. (b) There were no changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year (the registrant's second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 10 Exhibits (a) The Code of Ethics for Principal Executive and Senior Financial Officers is attached hereto. (b) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto as part of EX-99.CERT. <Page> SIGNATURES 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. Active Assets Tax-Free Trust /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer August 19, 2004 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer August 19, 2004 /s/ Francis Smith Francis Smith Principal Financial Officer August 19, 2004