You cannot e-file 2017 or 2018. E-filing is permanently closed for those tax years. If you did not file your tax returns for those years then the only way to file them now is to print, sign and mail them in.
You mean you did not notice that your refund did not come in for either of those tax returns? Or did you owe tax due? Do you see a refund on the form or tax owed? If you have refunds, there is no penalty for filing them late. If you owe, your interest and penalties have been adding up since the filing deadlines that you missed.
**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.**
