After you file

When you e-file a tax return there is no physical signature on the Form 1040.  You "sign" electronically by providing your previous year AGI.   If a lender or someone wants a signed copy of your return, then print it out and use a pen to sign it for them and keep them happy if they do not understand how electronic filing works.

**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.**