EATON VANCE MUTUAL FUNDS TRUST

Two International Place

Boston, MA 02110

Telephone: (617) 482-8260

Telecopy: (617) 338-8054



CERTIFICATION


Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and Regulation S-T, Eaton Vance Mutual Funds Trust (the “Registrant”) (1933 Act File No. 002-90946) certifies (a) that the form of prospectus and statement of additional information dated February 1, 2013 used with respect to the following series of the Registrant, does not differ materially from that which was contained in Post-Effective Amendment No. 196 (“Amendment No. 196”) to the Registrant’s Registration Statement on Form N-1A, and (b) that Amendment No. 196 was filed electronically with the Commission (Accession No. 0000940394-14-000141) on January 28, 2013:


Eaton Vance AMT-Free Municipal Income Fund

Eaton Vance Build America Bond Fund



EATON VANCE MUTUAL FUNDS TRUST



By:

/s/ Maureen A. Gemma

Maureen A. Gemma

Secretary


Date: February 1, 2013




[MFT_497J002.GIF]

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