The signature page is page 2 of your Form 1040---or 1040SR. When you e-file, there is no physical signature on the page. You "sign" electronically by entering your AGI.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/save-2021-turbo...
**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.**
