TurboTax has no way to know what you put in an envelope and took to a mailbox. And the IRS does not provide feedback to TurboTax regarding whether you paid your tax due. The other thing you can do to check on this is look at your tax account on the IRS site:<a rel="nofollow" target="_blank" href="
https://www.irs.gov/payments/view-your-tax-account">https://www.irs.gov/payments/view-your-tax-accou...>
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
