EX-99

The registrants principal executive officer and principal
financial
officers have concluded, based on their evaluation of the
effectiveness of
the design and operation of the registrants disclosure controls
and
procedures as of a date within 90 days of the filing date of
this report on
Form N-SAR, that the design and operation of such procedures are
effective
to provide reasonable assurance that information required to be
disclosed by
the investment company in the reports that it files or submits
under the
Securities Exchange Act of 1934 is recorded, processed,
summarized, and
reported within the time periods specified in the Commissions
rules and
forms.

There have been no significant changes in the registrants
internal controls
or in other factors that could significantly affect these
controls subsequent to the date of their evaluation.
Certifications

I, Charles E. Porter, principal financial officer of Putnam
Money Market Fund, certify that:
1. I have reviewed this report on Form N-SAR of Putnam Money
Market Fund;
2. Based on my knowledge, this report does not contain any
untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial information included in
this report, and the financial statements on which the financial
information is based, fairly present in all material respects
the financial condition, results of operations, changes in net
assets, and cash flows (if the financial statements are required
to include a statement of cash flows) of the registrant as of,
and for, the periods presented in this report;
4. The registrants other certifying officers and I are
responsible for establishing and maintaining disclosure controls
and procedures (as defined in rule 30a-2(c) under the Investment
Company Act) for the registrant and have:
a) designed such disclosure controls and procedures to ensure
that material information relating to the registrant, including
its consolidated subsidiaries, is made known to us by others
within those entities, particularly during the period in which
this report is being prepared;
b) evaluated the effectiveness of the registrants disclosure
controls and procedures as of a date within 90 days prior to the
filing date of this report (the "Evaluation Date"); and
c) presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures based on
our evaluation as of the Evaluation Date;
5. The registrants other certifying officers and I have
disclosed, based on our most recent evaluation, to the
registrants auditors and the audit committee of the registrants
board of directors (or persons performing the equivalent
functions):
a) all significant deficiencies in the design or operation of
internal controls which could adversely affect the registrants
ability to record, process, summarize, and report financial data
and have identified for the registrants auditors any material
weaknesses in internal controls; and
b) any fraud, whether or not material, that involves management
or other employees who have a significant role in the
registrants internal controls; and



6. The registrants other certifying officers and I have
indicated in this report whether or not there were significant
changes in internal controls or in other factors that could
significantly affect internal controls subsequent to the date of
our most recent evaluation, including any corrective actions
with regard to significant deficiencies and material weaknesses.


Date: November 22, 2002
/s/ Charles E. Porter
Charles E. Porter
Treasurer and Executive Vice President
Principal Financial Officer

Certifications

I, Steven D. Krichmar, principal financial officer of Putnam
Money Market Fund, certify that:
1. I have reviewed this report on Form N-SAR of Putnam Money
Market Fund;
2. Based on my knowledge, this report does not contain any
untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial information included in
this report, and the financial statements on which the financial
information is based, fairly present in all material respects
the financial condition, results of operations, changes in net
assets, and cash flows (if the financial statements are required
to include a statement of cash flows) of the registrant as of,
and for, the periods presented in this report;
4. The registrants other certifying officers and I are
responsible for establishing and maintaining disclosure controls
and procedures (as defined in rule 30a-2(c) under the Investment
Company Act) for the registrant and have:
a) designed such disclosure controls and procedures to ensure
that material information relating to the registrant, including
its consolidated subsidiaries, is made known to us by others
within those entities, particularly during the period in which
this report is being prepared;
b) evaluated the effectiveness of the registrants disclosure
controls and procedures as of a date within 90 days prior to the
filing date of this report (the "Evaluation Date"); and
c) presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures based on
our evaluation as of the Evaluation Date;
5. The registrants other certifying officers and I have
disclosed, based on our most recent evaluation, to the
registrants auditors and the audit committee of the registrants
board of directors (or persons performing the equivalent
functions):
a) all significant deficiencies in the design or operation of
internal controls which could adversely affect the registrants
ability to record, process, summarize, and report financial data
and have identified for the registrants auditors any material
weaknesses in internal controls; and
b) any fraud, whether or not material, that involves management
or other employees who have a significant role in the
registrants internal controls; and



6. The registrants other certifying officers and I have
indicated in this report whether or not there were significant
changes in internal controls or in other factors that could
significantly affect internal controls subsequent to the date of
our most recent evaluation, including any corrective actions
with regard to significant deficiencies and material weaknesses.


Date: November 22, 2002
/s/Steven D. Krichmar
Steven D. Krichmar
Principal Financial Officer

Certifications

I, Karnig H. Durgarian, principal executive officer of Putnam
Money Market Fund, certify that:
1. I have reviewed this report on Form N-SAR of Putnam Money
Market Fund;
2. Based on my knowledge, this report does not contain any
untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial information included in
this report, and the financial statements on which the financial
information is based, fairly present in all material respects
the financial condition, results of operations, changes in net
assets, and cash flows (if the financial statements are required
to include a statement of cash flows) of the registrant as of,
and for, the periods presented in this report;
4. The registrants other certifying officers and I are
responsible for establishing and maintaining disclosure controls
and procedures (as defined in rule 30a-2(c) under the Investment
Company Act) for the registrant and have:
a) designed such disclosure controls and procedures to ensure
that material information relating to the registrant, including
its consolidated subsidiaries, is made known to us by others
within those entities, particularly during the period in which
this report is being prepared;
b) evaluated the effectiveness of the registrants disclosure
controls and procedures as of a date within 90 days prior to the
filing date of this report (the "Evaluation Date"); and
c) presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures based on
our evaluation as of the Evaluation Date;
5. The registrants other certifying officers and I have
disclosed, based on our most recent evaluation, to the
registrants auditors and the audit committee of the registrants
board of directors (or persons performing the equivalent
functions):
a) all significant deficiencies in the design or operation of
internal controls which could adversely affect the registrants
ability to record, process, summarize, and report financial data
and have identified for the registrants auditors any material
weaknesses in internal controls; and
b) any fraud, whether or not material, that involves management
or other employees who have a significant role in the
registrants internal controls; and



6. The registrants other certifying officers and I have
indicated in this report whether or not there were significant
changes in internal controls or in other factors that could
significantly affect internal controls subsequent to the date of
our most recent evaluation, including any corrective actions
with regard to significant deficiencies and material weaknesses.


Date: November 22, 2002
/s/Karnig H. Durgarian
Karnig H. Durgarian
Principal executive officer

010 Money Market Fund
09/30/02 Annual.

Because the electronic format for filing Form N-SAR does not
provide adequate space for responding to certain items
correctly, the correct answers are as follows:


72DD1

Class A		87,229
Class B		12,240
Class C		854

72DD2

Class M		1,674
Class T		53

73A1

Class A		$0.016558
Class B		$0.011574
Class C		$0.011590

73A2

Class M		$0.015067
Class T		$0.009237

74 U1

Class A		5,512,532
Class B		1,193,459
Class C		79,227

74U2

Class M		105,938
Class T		12,130

74 V1

Class A		1.00
Class B		1.00
Class C		1.00

74V2

Class M		1.00
Class T		1.00

EX-99

Fund #010 Putnam Money Market Fund

New Class T

Inception date Class T= December 31, 2001

12b-1 fees = up to 0.35% but currently approved at 0. 25%

Sales charge	= zero

EX-99

November 6, 2002


To the Trustees and Shareholders of Putnam Money Market Fund:

In planning and performing our audit of the financial statements
of Putnam Money Market Fund for the year ended September 30,
2002, we considered its internal control, including control
activities for safeguarding securities, in order to determine
our auditing procedures for the purpose of expressing our
opinion on the financial statements and to comply with the
requirements of Form N-SAR, not to provide assurance on internal
control.

The management of Putnam Money Market Fund is responsible for
establishing and maintaining internal control.  In fulfilling
this responsibility, estimates and judgments by management are
required to assess the expected benefits and related costs of
controls.  Generally, controls that are relevant to an audit
pertain to the entitys objective of preparing financial
statements for external purposes that are fairly presented in
conformity with accounting principles generally accepted in the
United States of America.  Those controls include the
safeguarding of assets against unauthorized acquisition, use or
disposition.

Because of inherent limitations in internal controls, errors or
fraud may occur and may not be detected.  Also, projection of
any evaluation of internal control to future periods is subject
to the risk that controls may become inadequate because of
changes in conditions or that the effectiveness of the design
and operation may deteriorate.

Our consideration of internal control would not necessarily
disclose all matters in internal control that might be material
weaknesses under standards established by the American Institute
of Certified Public Accountants.  A material weakness is a
condition in which the design or operation of one or more of the
internal control components does not reduce to a relatively low
level the risk that misstatements caused by errors or fraud in
amounts that would be material in relation to the financial
statements being audited may occur and not be detected within a
timely period by employees in the normal course of performing
their assigned functions.  However, we noted no matters
involving internal control and its operation, including controls
for safeguarding securities, that we consider to be material
weaknesses as defined above as of September 30, 2002.

This report is intended solely for the information and use of
management and the Board of Trustees and the Securities and
Exchange Commission and is not intended to be and should not be
used by anyone other than these specified parties.