How much do I need to pay for mail-in taxes?

There are no e-file fees when using the TurboTax online editions, federal or state.  The TurboTax account fees are the same whether a tax return is printed for mailing or e-filed.

And....TurboTax does not mail tax returns for users.  If you want to file by mail, you pay your TurboTax fees, and then print the return, sign and date it in ink, and mail it yourself.