SECTION 906 CERTIFICATION CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Name of Issuer: USAA MUTUAL FUNDS TRUST Aggressive Growth Fund Aggressive Growth Fund Institutional Shares Capital Growth Fund First Start Growth Fund Growth Fund Growth Fund Institutional Shares Growth & Income Fund Growth & Income Fund Adviser Shares High Income Fund High Income Fund Institutional Shares High Income Fund Adviser Shares Income Fund Income Fund Adviser Shares Income Fund Institutional Shares Income Stock Fund Income Stock Fund Institutional Shares Intermediate-Term Bond Fund Intermediate-Term Bond Fund Adviser Share Intermediate-Term Bond Fund Institutional Shares Money Market Fund Science & Technology Fund Science & Technology Fund Adviser Shares Short-Term Bond Fund Short-Term Bond Fund Institutional Fund Short-Term Bond Fund Adviser Shares Small Cap Stock Fund Small Cap Stock Fund Institutional Funds Value Fund Value Fund Institutional Shares Value Fund Adviser Shares In connection with the Annual Reports on Form N-CSR/S (Reports) of the above- named issuer for the Funds listed above for the period ended January 31, 2013, the undersigned hereby certifies, that: 1. The Reports fully comply with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Reports fairly present, in all material respects, the financial condition and results of operations of the issuer. Date: 03/27/2013 /S/DANIEL S. MCNAMARA ---------------------- --------------------- Daniel S. McNamara President SECTION 906 CERTIFICATION CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Name of Issuer: USAA MUTUAL FUNDS TRUST Aggressive Growth Fund Aggressive Growth Fund Institutional Shares Capital Growth Fund First Start Growth Fund Growth Fund Growth Fund Institutional Shares Growth & Income Fund Growth & Income Fund Adviser Shares High Income Fund High Income Fund Institutional Shares High Income Fund Adviser Shares Income Fund Income Fund Adviser Shares Income Fund Institutional Shares Income Stock Fund Income Stock Fund Institutional Shares Intermediate-Term Bond Fund Intermediate-Term Bond Fund Adviser Share Intermediate-Term Bond Fund Institutional Shares Money Market Fund Science & Technology Fund Science & Technology Fund Adviser Shares Short-Term Bond Fund Short-Term Bond Fund Institutional Fund Short-Term Bond Fund Adviser Shares Small Cap Stock Fund Small Cap Stock Fund Institutional Funds Value Fund Value Fund Institutional Shares Value Fund Adviser Shares In connection with the Annual Reports on Form N-CSR/S (Reports) of the above- named issuer for the Funds listed above for the period ended January 31, 2013, the undersigned hereby certifies, that: 1. The Reports fully comply with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Reports fairly present, in all material respects, the financial condition and results of operations of the issuer. Date: 03/27/2013 /S/ROBERTO GALINDO, JR. ---------------------- ----------------------- Roberto Galindo, Jr. Treasurer