| |
| Section 906 Certifications
|
| I, Jonathan S. Horwitz, the Principal Executive Officer of the Funds listed on Attachment A, certify that, to my knowledge: |
| 1. The form N-CSR of the Funds listed on Attachment A for the period ended December 31, 2021 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 of the Funds listed on Attachment A for the period ended December 31, 2021 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A. |
| Date: February 25, 2022 |
| /s/ Jonathan S. Horwitz |
| ______________________ |
| Jonathan S. Horwitz |
| Principal Executive Officer |
|
Section 906 Certifications
|
| I, Janet C. Smith, the Principal Financial Officer of the Funds listed on Attachment A, certify that, to my knowledge: |
| 1. The form N-CSR of the Funds listed on Attachment A for the period ended December 31, 2021 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 of the Funds listed on Attachment A for the period ended December 31, 2021 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A. |
| Date: February 25, 2022 |
| /s/ Janet C. Smith |
| ______________________ |
| Janet C. Smith |
| Principal Financial Officer |
|
Attachment A |
| Period (s) ended December 31, 2021
|
| Putnam International Equity Fund |
| Putnam International Value Fund |
| Putnam Small Cap Growth Fund |
| Putnam Sustainable Leaders Fund |
| Putnam VT Diversified Income Fund |
| Putnam VT Emerging Markets Equity Fund |
| Putnam VT Focused International Equity Fund |
| Putnam VT George Putnam Balanced Fund |
| Putnam VT Global Asset Allocation Fund |
| Putnam VT Global Health Care Fund |
| Putnam VT Government Money Market Fund |
| Putnam VT Growth Opportunities Fund |
| Putnam VT High Yield Fund |
| Putnam VT Income Fund |
| Putnam VT International Equity Fund |
| Putnam VT International Value Fund |
| Putnam VT Large Cap Value Fund |
| Putnam VT Mortgage Securities Fund |
| Putnam VT Multi-Asset Absolute Return Fund |
| Putnam VT Multi-Cap Core Fund |
| Putnam VT Research Fund |
| Putnam VT Small Cap Growth Fund |
| Putnam VT Small Cap Value Fund |
| Putnam VT Sustainable Future Fund |
| Putnam VT Sustainable Leaders Fund |