UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-21416 John Hancock Tax-Advantaged Dividend Income Fund (Exact name of registrant as specified in charter) 101 Huntington Avenue, Boston, Massachusetts 02199 (Address of principal executive offices) (Zip code) Brian E. Langenfeld, Attorney and Assistant Secretary 101 Huntington Avenue Boston, Massachusetts 02199 (Name and address of agent for service) Registrant's telephone number, including area code: 617-375-1722 Date of fiscal year end: December 31 Date of reporting period: March 31, 2005 ITEM 1. SCHEDULE OF INVESTMENTS JOHN HANCOCK Tax-Advantaged Dividend Income Fund 3.31.2005 Quarterly Portfolio Holdings [A 2" x 1" John Hancock (Signature)/John Hancock Funds logo in lower, center middle of page. A tag line below reads "JOHN HANCOCK FUNDS."] John Hancock Tax-Advantaged Dividend Income Fund Securities owned by the Fund on March 31, 2005 (unaudited) Issuer Shares Value --------------------------------------------------------------------------------------------------------------------------------- Common stocks 76.03% $921,458,377 (Cost $875,892,059) Diversified Banks 7.15% 86,626,520 Bank of America Corp. 730,000 32,193,000 Comerica, Inc. 296,000 16,303,680 U.S. Bancorp. 647,000 18,646,540 Wachovia Corp. 230,000 11,709,300 Wells Fargo & Co. 130,000 7,774,000 Electric Utilities 24.50% 296,961,597 Alliant Energy Corp. 50,000 1,339,000 Ameren Corp. 561,100 27,499,511 American Electric Power Co., Inc. 335,500 11,427,130 Black Hills Corp. 454,000 15,013,780 CH Energy Group, Inc. 373,600 17,073,520 Cinergy Corp. 539,100 21,844,332 Consolidated Edison, Inc. 525,100 22,148,718 Empire District Electric Co. (The) 428,400 9,964,584 Entergy Corp. 10,000 706,600 FPL Group, Inc. 18,000 722,700 Great Plains Energy, Inc. 67,000 2,048,860 NSTAR 543,000 29,484,900 OGE Energy Corp. 884,800 23,845,360 Pinnacle West Capital Corp. 230,000 9,777,300 Progress Energy, Inc. 569,600 23,894,720 Scottish Power Plc, American Depositary Receipt (United Kingdom) 610,000 19,032,000 Southern Co. (The) 593,400 18,887,922 Westar Energy, Inc. 425,000 9,197,000 WPS Resources Corp. 373,000 19,739,160 Xcel Energy, Inc. 775,000 13,314,500 Gas Utilities 10.49% 127,171,501 Atmos Energy Corp. 756,200 20,417,400 KeySpan Corp. 654,400 25,501,968 NiSource, Inc. 467,700 10,658,883 Northwest Natural Gas Co. 325,000 11,755,250 Peoples Energy Corp. 585,200 24,531,584 Piedmont Natural Gas Co., Inc. 180,000 4,147,200 Vectren Corp. 689,900 18,378,936 WGL Holdings, Inc. 380,500 11,780,280 Integrated Oil & Gas 0.69% 8,396,640 ChevronTexaco Corp. 144,000 8,396,640 Integrated Telecommunication Services 1.68% 20,316,900 SBC Communications, Inc. 670,000 15,872,300 Verizon Communications, Inc. 125,200 4,444,600 Multi-Utilities & Unregulated Power 13.65% 165,424,809 Dominion Resources, Inc. 385,000 28,655,550 DTE Energy Co. 485,000 22,057,800 Duke Energy Corp. 533,400 14,940,534 Energy East Corp. 406,000 10,645,320 National Fuel Gas Co. 456,000 13,037,040 ONEOK, Inc. 821,100 25,306,302 Public Service Enterprise Group, Inc. 454,700 24,731,133 Puget Energy, Inc. 707,000 15,582,280 SCANA Corp. 257,500 9,841,650 TECO Energy, Inc. 40,000 627,200 Other Diversified Financial Services 1.50% 18,223,260 Citigroup, Inc. 187,000 8,403,780 JPMorgan Chase & Co. 283,800 9,819,480 Regional Banks 14.53% 176,078,650 AmSouth Bancorp. 775,000 20,111,250 BB&T Corp. 495,000 19,344,600 Colonial BancGroup, Inc. (The) 275,000 5,643,000 F.N.B. Corp. 190,000 3,638,500 First Horizon National Corp. 315,000 12,848,850 FirstMerit Corp. 365,000 9,767,400 Hudson United Bancorp. 195,000 6,873,750 KeyCorp 749,000 24,305,050 National City Corp. 505,000 16,917,500 PNC Financial Services Group, Inc. 370,000 19,047,600 Regions Financial Corp. 795,000 25,758,000 Susquehanna Bancshares, Inc. 275,000 6,704,500 Whitney Holding Corp. 115,000 5,118,650 Thrifts & Mortgage Finance 1.84% 22,258,500 People's Bank 150,000 6,142,500 Washington Mutual, Inc. 408,000 16,116,000 Credit Issuer, description rating (A) Shares Value --------------------------------------------------------------------------------------------------------------------------------- Preferred stocks 23.17% $280,854,686 (Cost $283,141,385) Consumer Finance 0.11% 1,324,950 SLM Corp., 6.97%, Ser A BBB+ 24,200 1,324,950 Diversified Banks 2.29% 27,734,970 Abbey National Plc, 7.375%, Depositary Shares, Ser B (United Kingdom) A- 93,100 2,485,770 Royal Bank of Scotland Group Plc, 5.75%, Ser L (United Kingdom) A 1,060,000 25,249,200 Electric Utilities 6.93% 83,923,264 Alabama Power Co., 5.20% BBB+ 276,700 6,856,626 Alabama Power Co., 5.30% (Class A) BBB+ 213,000 5,511,375 Carolina Power & Light Co., $5.44 BB+ 111,493 10,759,074 Connecticut Light & Power Co., $3.24, Ser 68G BBB- 16,511 859,089 Connecticut Light & Power Co., 5.28%, Ser 1967 BBB- 18,294 868,965 Connecticut Light & Power Co., 6.56%, Ser 1968 BBB- 7,224 377,229 Duquesne Light Co., 6.50% BB+ 210,000 11,325,300 Entergy Arkansas, Inc., $1.96 BB+ 150,466 3,775,764 Entergy Arkansas, Inc., 4.56% BB+ 9,388 756,615 Entergy Arkansas, Inc., 4.56%, Ser 1965 BB+ 9,818 791,270 Entergy Arkansas, Inc., $6.08 Ba1 10,807 1,085,091 Entergy Gulf States, Inc., $7.56 BB+ 28,422 2,756,934 Entergy Louisiana, Inc., 5.16% Ba1 12,644 1,164,038 Entergy Mississippi, Inc., 4.92% Ba2 8,190 718,929 FPL Group Capital Trust I, 5.875% BBB+ 348,200 8,412,512 Interstate Power & Light Co., 7.10%, Ser C BBB- 20,600 548,578 Interstate Power & Light Co., 8.375%, Ser B BBB- 233,000 7,922,000 Monongahela Power Co., $7.73, Ser L B- 33,143 3,297,728 Northern Indiana Public Service Co., 4.50% BB+ 28,863 2,334,295 Northern Indiana Public Service Co., 4.88% BBB 7,971 698,957 Ohio Edison Co., 4.56% BB 15,325 1,222,169 Pennsylvania Power Co., 7.75% BB 9,500 955,641 Union Electric Co., $4.50 BBB 10,370 871,080 Wisconsin Power & Light Co., 4.50% BBB 4,600 381,800 Xcel Energy, Inc., $4.08, Ser B BB+ 66,070 5,236,048 Xcel Energy, Inc., $4.56, Ser G BB+ 53,700 4,436,157 Gas Utilities 2.29% 27,710,053 El Paso Tennessee Pipeline Co., 8.25%, Ser A CCC- 300,000 15,159,390 KeySpan Corp., 8.75%, Conv A 27,500 1,391,225 Southern Union Co., 7.55% BB+ 417,800 11,159,438 Investment Banking & Brokerage 3.61% 43,784,560 Bear Stearns Cos., Inc. (The), 5.49%, Depositary Shares, Ser G BBB 251,800 12,728,490 Bear Stearns Cos., Inc. (The), 5.72%, Depositary Shares, Ser F BBB 126,700 6,556,725 Bear Stearns Cos., Inc. (The), 6.15%, Depositary Shares, Ser E BBB 64,900 3,348,840 Lehman Brothers Holdings, Inc., 5.67%, Depositary Shares, Ser D BBB+ 56,000 2,800,000 Lehman Brothers Holdings, Inc., 5.94%, Depositary Shares, Ser C BBB+ 256,260 13,261,455 Lehman Brothers Holdings, Inc., 6.50%, Depositary Shares, Ser F BBB+ 193,500 5,089,050 Multi-Line Insurance 0.43% 5,255,315 ING Groep N.V., 6.20% (Netherlands) A- 109,100 2,689,315 ING Groep N.V., 7.05% (Netherlands) A- 100,000 2,566,000 Multi-Utilities & Unregulated Power 1.16% 14,063,472 Avista Corp., $6.95, Ser K BB- 40,383 4,139,257 DTE Energy Co., 8.75%, Conv BBB- 187,000 4,749,800 Public Service Electric & Gas Co., 5.05%, Ser D BB+ 12,860 1,131,680 Public Service Electric & Gas Co., 5.28%, Ser E BB+ 21,930 1,962,735 South Carolina Electric & Gas Co., 6.52% Baa1 20,000 2,080,000 Oil & Gas Exploration & Production 2.88% 34,964,496 Anadarko Petroleum Corp., 5.46%, Depositary Shares, Ser B BBB- 50,000 4,887,500 Apache Corp., 5.68%, Depositary Shares, Ser B BBB 50,000 5,146,875 Devon Energy Corp., 6.49%, Ser A BB+ 150,000 15,595,320 Nexen, Inc., 7.35% (Canada) BB+ 359,584 9,334,801 Other Diversified Financial Services 2.39% 29,016,094 ABN AMRO Capital Funding Trust V, 5.90% A 140,000 3,315,200 ABN AMRO Capital Funding Trust VII, 6.08% A 950,000 23,208,500 General Electric Capital Corp., 6.10% AAA 38,100 961,644 J.P. Morgan Chase Capital XI, 5.875%, Ser K A- 65,000 1,530,750 Reinsurance 0.22% 2,643,200 RenaissanceRe Holdings Ltd., 6.08%, Ser C (Bermuda) BBB+ 112,000 2,643,200 Thrifts & Mortgage Finance 0.86% 10,434,312 Fannie Mae, 4.75%, Ser M AA- 20,000 796,000 Fannie Mae, 5.10%, Ser E AA- 24,300 1,029,712 Fannie Mae, 5.125%, Ser L AA- 124,000 5,179,480 Fannie Mae, 5.375%, Ser I AA- 76,800 3,429,120 Interest Maturity Credit Par value Issuer, description rate (%) Date rating (A) ($000) Value --------------------------------------------------------------------------------------------------------------------------------- Short-term investments 0.80% $9,700,000 (Cost $9,700,000) Government U.S. Agency 0.80% 9,700,000 Federal Home Loan Bank, Disc Note 2.400 04-01-2005 AAA 9,700 9,700,000 Total investments 100.00% $1,212,013,063 John Hancock Tax-Advantaged Dividend Income Fund Financial futures contracts March 31, 2005 (unaudited) Number of Open contracts contracts Position Expiration Appreciation ---------------------------------------------------------------------------------------------------------- U.S. Treasury 10-Year Note 250 Short June 05 $377,155 John Hancock Tax-Advantaged Dividend Income Fund Footnotes to Schedule of Investments March 31, 2005 (unaudited) (A) Credit ratings are unaudited and are rated by Moody's Investors Service where Standard & Poor's ratings are not available. Parenthetical disclosure of a foreign country in the security description represents country of a foreign issuer. The percentage shown for each investment category is the total value of that category as a percentage of the total investment of the Fund. The cost of investments owned on March 31, 2005, including short-term investments, was $1,168,733,444. Gross unrealized appreciation and depreciation of investments aggregated $63,126,335 and $19,846,716, respectively, resulting in net unrealized appreciation of $43,279,619. For more information Trustees Charles L. Ladner, Chairman* James F. Carlin Richard P. Chapman, Jr.* William H. Cunningham Ronald R. Dion Dr. John A. Moore* Patti McGill Peterson* Steven R. Pruchansky James A. Shepherdson Lt. Gen. Norman H. Smith, USMC (Ret.) *Members of the Audit Committee Officers James A. Shepherdson President and Chief Executive Officer Susan S. Newton Senior Vice President and Secretary William H. King Vice President and Treasurer Investment Adviser John Hancock Advisers, LLC 101 Huntington Avenue Boston, Massachusetts 02199-7603 Custodian The Bank of New York One Wall Street New York, New York 10286 Transfer Agent and Dividend Disburser Mellon Investor Services 85 Challenger Road Overpeck Centre Ridgefield Park, New Jersey 07660 Transfer Agent for APS Deutsche Bank Trust Company Americas 280 Park Avenue New York, New York 10017 Legal Counsel Wilmer Cutler Pickering Hale and Dorr LLP 60 State Street Boston, Massachusetts 02109-1803 Stock Symbol Listed New York Stock Exchange: HTD How to contact us Internet www.jhfunds.com Mail Regular mail: Mellon Investor Services 85 Challenger Road Overpeck Centre Ridgefield Park, NJ 07660 Phone Customer service representatives 1-800-852-0218 Portfolio commentary 1-800-344-7054 24-hour automated information 1-800-843-0090 TDD line 1-800-231-5469 This report is for the information of the shareholders of John Hancock Tax-Advantaged Dividend Income Fund. P13Q1 3/05 5/05 ITEM 2. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-Q, the registrant's principal executive officer and principal accounting officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no changes in the registrant's internal control over financial reporting 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. ITEM 3. EXHIBITS. Separate certifications for the registrant's principal executive officer and principal accounting officer, as required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached. 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. John Hancock Tax-Advantaged Dividend Income Fund By: ------------------------------ James A. Shepherdson President and Chief Executive Officer Date: May 25, 2005 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: ------------------------------ James A. Shepherdson President and Chief Executive Officer Date: May 25, 2005 By: ------------------------------ William H. King Vice President and Treasurer Date: May 25, 2005