@morg2019
If you also have a state return to mail, then look for a page in your PDF/printout with the state Filing Instructions on how to mail to your state. Some states require that a copy of the Federal return be mailed along with the state return.
If your state requires a Federal copy, then you'll need 2 copies of the Federal return--one to mail to the IRS, and one to enclose with your state return that you mail to the state tax agency.
