After you file

No.   Software is available for 2018, 2019, 2020 and 2021.   It is too late to use TurboTax for a return for any earlier year, and you would not be able to get a tax refund for those years.    If you owe tax it still has to be paid, however.   You can seek the paper forms to prepare those returns by hand and mail them in.    The forms are available from the IRS.

 

https://www.irs.gov/forms-pubs/prior-year

**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.**