If you used Free Edition, the use of the website software to prepare the Federal and state returns is free.
Did you pay taxes owed with a credit card? If so, there is a service fee which is charged by the card processor. Did you pay through TurboTax (which uses a third-party processor), or did you go to the IRS website and were linked to the processor's website?
See this FAQ on credit card payments:
<a rel="nofollow" target="_blank" href="
https://ttlc.intuit.com/questions/2580013-can-i-pay-my-irs-taxes-with-a-credit-or-debit-card">https:...>
