Putnam Investments
	One Post Office Square
	Boston, MA 02109
	February 4, 2015
Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549

RE:	Putnam Money Market Fund (Reg. No. 2-55091) (811-02608) Post-Effective Amendment No. 52 to
	Registration Statement on Form N-1A
	Putnam Tax Exempt Money Market Fund (Reg. No. 33-15238) (811-05215) (the “Funds”)
	Post-Effective Amendment No. 36 to Registration Statement on Form N-1A

Ladies and Gentlemen:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, each Fund hereby certifies that the form of Prospectus and Statement of Additional Information that would have been filed on behalf of the Fund pursuant to Rule 497(c) upon the effectiveness of Post-Effective Amendments No. 52 and 36 to the Registration Statements on Form N-1A (the “Amendments”) of Putnam Money Market Fund and Putnam Tax Exempt Money Market Fund, respectively, would not have differed from that contained in the Amendments, which are the most recent amendments to such Registration Statements and were filed electronically on January 28, 2015.

Comments or questions concerning this certificate may be directed to James Clark at 1-800-225-2465, ext. 18939.

	Very truly yours,
	PUTNAM MONEY MARKET FUND
	PUTNAM TAX EXEMPT MONEY MARKET
	FUND
	By: /s/ Jonathan S. Horwitz
	Jonathan S. Horwitz
	Executive Vice President, Principal Executive
	Officer and Compliance Liaison
cc: James M. Thomas, Esq.
Ropes & Gray LLP