Exhibit 12(b)
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002
I, Matthew T. Hinkle, Chief Executive Officer of the Franklin Federal Tax-Free Income Fund (the “Registrant”), certify, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:
| 1. | The periodic report on Form N-CSR of the Registrant for the period ended 4/30/2018 (the “Form N-CSR”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| 2. | The information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Registrant. |
Dated: 6/26/2018
| /s/ MATTHEW T. HINKLE |
| Matthew T. Hinkle |
| Chief Executive Officer - Finance and Administration |
Exhibit 12(b)
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002
I, Gaston Gardey, Chief Financial Officer of the Franklin Federal Tax-Free Income Fund (the “Registrant”), certify, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:
| 1. | The periodic report on Form N-CSR of the Registrant for the period ended 4/30/2018 (the “Form N-CSR”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| 2. | The information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Registrant. |
Dated: 6/26/2018
| /s/ GASTON GARDEY |
| Gaston Gardey |
| Chief Financial Officer and Chief Accounting Officer |