Are you asking about TurboTax Online or the CD/Download TurboTax software that you install on your own computer?
TurboTax Deluxe Online is not free. You have to pay a fee to use the software to prepare your tax return. But there is no additional charge for e-filing. The fee is the same whether you e-file or file by mail.
If you use the TurboTax Deluxe CD/Download software, you have to purchase the software. There is no charge to e-file a federal tax return. You can e-file up to 5 federal tax returns.
There are additional charges for a state tax return and for e-filing a state tax return.
