FORM N-PX
       ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT
                           INVESTMENT COMPANY

Investment Company Act file number: File No. 811-05375

Putnam Master Income Trust
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   (Exact name of registrant as specified in charter)

One Post Office Square, Boston, Massachusetts 02109
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   (Address of principal executive offices)

Beth S. Mazor, Vice President
Putnam Master Income Trust
One Post Office Square
Boston, Massachusetts 02109

Copy To:
John W. Gerstmayr, Esq.
Ropes & Gray LLP
One International Place
Boston, Massachusetts 02110

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   (Name and address of agent for service)

Registrant's telephone number, including area code: (617) 292-1000

Date of Fiscal year-end: 10/31

Date of reporting period: 7/1/2003 - 6/30/2004


Item 1. Proxy Voting Record

Account Number: Putnam Master Income Trust




ISSUER NAME                                            TICKER    CUSIP         MTG DATE       MTG TYPE
                                                                               Proposal Type  Voted?     Vote    For/Agnst Mgmt
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ALDERWOODS GROUP INC                                              014383103    5/4/04         Annual
1.10     Elect Director Lloyd E. Campbell                                      MGMT           YES        FOR     FOR
1.20     Elect Director Anthony G. Eames                                       MGMT           YES        FOR     FOR
1.30     Elect Director Charles M. Elson                                       MGMT           YES        FOR     FOR
1.40     Elect Director David R. Hilty                                         MGMT           YES        FOR     FOR
1.50     Elect Director Paul A. Houston                                        MGMT           YES        FOR     FOR
1.60     Elect Director Olivia F. Kirtley                                      MGMT           YES        FOR     FOR
1.70     Elect Director John S. Lacey                                          MGMT           YES        FOR     FOR
1.80     Elect Director William R. Riedl                                       MGMT           YES        FOR     FOR
1.90     Elect Director W. Macdonald Snow, Jr.                                 MGMT           YES        FOR     FOR
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Covad Communications Group, Inc                        COVD       222814204    8/14/03        Annual
1.10     Elect Director Larry Irving                                           MGMT           YES        FOR     FOR
1.20     Elect Director Richard A. Jalkut                                      MGMT           YES        FOR     FOR
1.30     Elect Director Daniel C. Lynch                                        MGMT           YES        FOR     FOR
2.00     Approve Employee Stock Purchase Plan                                  MGMT           YES        AGNST   AGNST
3.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Covad Communications Group, Inc                        COVD       222814204    6/10/04        Annual
1.10     Elect Director L. Dale Crandall                                       MGMT           YES        FOR     FOR
1.20     Elect Director Hellene S. Runtagh                                     MGMT           YES        FOR     FOR
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Crown Castle International Corp.                       CCI        228227104    5/26/04        Annual
1.10     Elect Director Randall A. Hack                                        MGMT           YES        AGNST   AGNST
1.20     Elect Director Edward C. Hutcheson, Jr.                               MGMT           YES        AGNST   AGNST
1.30     Elect Director J. Landis Martin                                       MGMT           YES        AGNST   AGNST
2.00     Approve Omnibus Stock Plan                                            MGMT           YES        FOR     FOR
3.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR
4.00     Implement MacBride Principles                                         SHLDR          YES        AGNST   FOR

Globix Corp.                                           GBIXQ      37957F200    2/24/04        Annual
1.10     Elect Director Peter K. Stevenson                                     MGMT           YES        AGNST   AGNST
1.20     Elect Director Peter S. Brodsky                                       MGMT           YES        AGNST   AGNST
1.30     Elect Director Peter L. Herzig                                        MGMT           YES        AGNST   AGNST
1.40     Elect Director Steven Lampe                                           MGMT           YES        AGNST   AGNST
1.50     Elect Director Steven G. Singer                                       MGMT           YES        AGNST   AGNST
1.60     Elect Director Raymond Steele                                         MGMT           YES        AGNST   AGNST
1.70     Elect Director Steven A. Van Dyke                                     MGMT           YES        AGNST   AGNST
2.00     Amend Stock Option Plan                                               MGMT           YES        AGNST   AGNST

Knology, Inc.                                          KNOL       499183804    5/4/04         Annual
1.10     Elect Director William Laverack, Jr.                                  MGMT           YES        FOR     FOR
1.20     Elect Director Bret D. Pearlman                                       MGMT           YES        FOR     FOR
1.30     Elect Director Alan A. Burgess                                        MGMT           YES        FOR     FOR
1.40     Elect Director Donald W. Burton                                       MGMT           YES        FOR     FOR
1.50     Elect Director William H. Scott, III                                  MGMT           YES        FOR     FOR
2.00     Eliminate Class of Preferred Stock                                    MGMT           YES        AGNST   AGNST
3.00     Amend Articles/Bylaws/Charter-Non-Routine                             MGMT           YES        FOR     FOR
4.00     Restrict Right to Act by Written Consent                              MGMT           YES        AGNST   AGNST
5.00     Approve Repricing of Options                                          MGMT           YES        AGNST   AGNST
6.00     Amend Omnibus Stock Plan                                              MGMT           YES        AGNST   AGNST

Leucadia National Corp.                                LUK        527288104    5/11/04        Annual
1.10     Elect Director Ian M. Cumming                                         MGMT           YES        FOR     FOR
1.20     Elect Director Paul M. Dougan                                         MGMT           YES        FOR     FOR
1.30     Elect Director Lawrence D. Glaubinger                                 MGMT           YES        FOR     FOR
1.40     Elect Director Alan J. Hirschfield                                    MGMT           YES        FOR     FOR
1.50     Elect Director James E. Jordan                                        MGMT           YES        FOR     FOR
1.60     Elect Director Jeffrey C. Keil                                        MGMT           YES        FOR     FOR
1.70     Elect Director Jesse Clyde Nichols III                                MGMT           YES        FOR     FOR
1.80     Elect Director Joseph S. Steinberg                                    MGMT           YES        FOR     FOR
2.00     Amend Articles to Extend Provisions
         that Restrict Accumulation of 5%
         Common Stock                                                          MGMT           YES        FOR     FOR
3.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Lodgian, Inc.                                          LGN        54021P205    4/8/04         Annual
1.10     Elect Director Sean F. Armstrong                                      MGMT           YES        FOR     FOR
1.20     Elect Director Russel S. Bernard                                      MGMT           YES        FOR     FOR
1.30     Elect Director Stewart J. Brown                                       MGMT           YES        FOR     FOR
1.40     Elect Director Kenneth A. Caplan                                      MGMT           YES        FOR     FOR
1.50     Elect Director Stephen P. Grathwohl                                   MGMT           YES        FOR     FOR
1.60     Elect Director Jonathan D. Gray                                       MGMT           YES        AGNST   AGNST
1.70     Elect Director Kevin C. McTavish                                      MGMT           YES        FOR     FOR
1.80     Elect Director W. Thomas Parrington                                   MGMT           YES        FOR     FOR
2.00     Amend Omnibus Stock Plan                                              MGMT           YES        FOR     FOR
3.00     Approve Reverse Stock Split                                           MGMT           YES        FOR     FOR
4.00     Amend Articles/Bylaws/Charter-Organization-Related                    MGMT           YES        FOR     FOR
5.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Lodgian, Inc.                                          LGN        54021P304    4/8/04         Annual
1.00     Approve Reverse Stock Split                                           MGMT           YES        FOR     FOR
2.00     Amend Articles                                                        MGMT           YES        FOR     FOR

Mariner Health Care, Inc.                              MHCA       56845X108    7/30/03        Annual
1.10     Elect Director Victor L. Lund                                         MGMT           YES        AGNST   AGNST
1.20     Elect Director C. Christian Winkle                                    MGMT           YES        AGNST   AGNST
1.30     Elect Director Patrick H. Daugherty                                   MGMT           YES        AGNST   AGNST
1.40     Elect Director Earl P. Holland                                        MGMT           YES        AGNST   AGNST
1.50     Elect Director Philip L. Maslowe                                      MGMT           YES        AGNST   AGNST
1.60     Elect Director Mohsin Y. Meghji                                       MGMT           YES        AGNST   AGNST
1.70     Elect Director M. Edward Stearns                                      MGMT           YES        AGNST   AGNST

Metrocall Holdings, Inc.                               MTOH       59164X105    9/24/03        Special
1.00     Increase Authorized Common Stock                                      MGMT           YES        FOR     FOR
         Increase Authorized Common Stock
2.00     Amend Securities Transfer Restrictions                                MGMT           YES        FOR     FOR
         Amend Securities Transfer Restrictions
3.00     Amend Stock Option Plan                                               MGMT           YES        AGNST   AGNST
         Amend Stock Option Plan

Metrocall Holdings, Inc.                               MTOH       59164X204    9/24/03        Special
1.00     Increase Authorized Common Stock                                      MGMT           YES        FOR     FOR
         Increase Authorized Common Stock
2.00     Amend Securities Transfer Restrictions                                MGMT           YES        FOR     FOR
         Amend Securities Transfer Restrictions
3.00     Amend Stock Option Plan                                               MGMT           YES        AGNST   AGNST
         Amend Stock Option Plan

Microcell Telecommunication                            MT.B                    5/5/04         Special
1.00     Ratify Ernst & Young as Auditors and
         Authorise Board to Fix Remuneration of
         Auditors                                                              MGMT           YES        FOR     FOR
2.00     The Resolution to Confirm the General
         By-Law of the Corporation.                                            MGMT           YES        AGNST   AGNST
3.00     Confirm the Expiration Time Under the
         Shareholder Rights Plan of the Corporation.                           MGMT           YES        FOR     FOR
4.00     Amend Stock Option Plan                                               MGMT           YES        FOR     FOR


Paxson Communications Corp.                            PAX        704231604    5/21/04        Annual
1.10     Elect Director Lowell W. Paxson                                       MGMT           YES        AGNST   AGNST
1.20     Elect Director Henry J. Brandon                                       MGMT           YES        AGNST   AGNST
1.30     Elect Director Elizabeth J. Hudson                                    MGMT           YES        AGNST   AGNST
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Pioneer Companies, Inc.                                PONR       723643300    5/13/04        Annual
1.10     Elect Director David N. Weinstein                                     MGMT           YES        FOR     FOR
1.20     Elect Director Michael Y. Mcgovern                                    MGMT           YES        FOR     FOR
1.30     Elect Director Marvin E. Lesser                                       MGMT           YES        FOR     FOR
1.40     Elect Director Gary L. Rosenthal                                      MGMT           YES        FOR     FOR
1.50     Elect Director Charles L. Mears                                       MGMT           YES        FOR     FOR
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

PTV Inc.                                                          62940R202   1/27/04         Special
1.00     Approve Reverse Stock Split                                           MGMT           YES        AGNST   AGNST
2.00     Change Company Name                                                   MGMT           YES        FOR     FOR

Safety Components International, Inc.                  SAFY       786474205   10/14/03        Annual
1.10     Elect Director Ben E. Waide III                                       MGMT           NO
1.20     Elect Director Carroll R. Wetzel, Jr.                                 MGMT           NO
2.00     Ratify Auditors                                                       MGMT           NO

Sterling Chemicals, Inc.                               SCHI       859166100    4/16/04        Annual
1.10     Elect Director Richard K. Crump                                       MGMT           YES        AGNST   AGNST
         Elect Director Richard K. Crump
1.20     Elect Director Peter Ting Kai Wu                                      MGMT           YES        AGNST   AGNST
         Elect Director Peter Ting Kai Wu
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR
         Ratify Auditors

Sterling Chemicals, Inc.                               SCHI       859166AA8    4/16/04        Annual
1.10     Elect Director Richard K. Crump                                       MGMT           YES        AGNST   AGNST
         Elect Director Richard K. Crump
1.20     Elect Director Peter Ting Kai Wu                                      MGMT           YES        AGNST   AGNST
         Elect Director Peter Ting Kai Wu
2.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR
         Ratify Auditors

Sun Healthcare Group, Inc.                            SUNH        866933401    5/19/04        Annual
1.10     Elect Director Gregory S. Anderson                                    MGMT           YES        FOR     FOR
1.20     Elect Director Richard K. Matros                                      MGMT           YES        FOR     FOR
1.30     Elect Director Bruce C. Vladeck, Ph.D.                                MGMT           YES        FOR     FOR
1.40     Elect Director Milton J. Walters                                      MGMT           YES        FOR     FOR
2.00     Approve Omnibus Stock Plan                                            MGMT           YES        FOR     FOR
3.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR

Washington Group International Inc                    WGII        938862208    5/7/04         Annual
1.00     Declassify the Board of Directors                                     MGMT           YES        FOR     FOR
2.10     Elect Director Stephen G. Hanks                                       MGMT           YES        FOR     FOR
2.20     Elect Director Michael P. Monaco                                      MGMT           YES        FOR     FOR
2.30     Elect Director Cordell Reed                                           MGMT           YES        FOR     FOR
2.40     Elect Director Bettina M. Whyte                                       MGMT           YES        FOR     FOR
3.00     Ratify Auditors                                                       MGMT           YES        FOR     FOR
4.00     Approve Omnibus Stock Plan                                            MGMT           YES        AGNST   AGNST



Any ballot marked 'Abstain' is considered to have been voted. Ballots
marked 'Abstain' are considered to be have been voted against
management's recommendation, regardless of whether the recommendation is
'For' or 'Against,' except where management has made no recommendation
or has recommended that shareholders 'Abstain.'

Where management has recommended that shareholders 'Abstain' from voting
on a ballot item: 1) a ballot market 'Abstain' is considered to have
been voted for management's recommendation to 'Abstain' and 2) a ballot
voted 'For" or 'Against' is considered to have been voted against
management's recommendation to 'Abstain.'

Where management has made no recommendation on a ballot item, the
abbreviation "N/A" is used to denote that there is no applicable
recommendation compared to which a vote may be 'For' or 'Against' the
recommendation of management.

SIGNATURES:

Pursuant to the requirements of 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.

Putnam Master Income Trust
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       (Registrant)

By:          /s/ Charles E. Porter*, Executive Vice President,
             Associate Treasurer and Principal Executive Officer
      ___________________________________________________________________
       (Signature & Title)


Date: August 23, 2004
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               * By Jonathan S. Horwitz,
                 pursuant to a Power-of-Attorney