This is the only question you have posted on this forum with the User ID of @c078b7441348
How do you want to file the 2020 federal tax return?
If you are e-filing the return there is no need to mail anything to the IRS.
You complete your tax return by finishing all 3 Steps in the File section. In Step 3, to e-file your tax return, you must click on the large Orange button labeled "Transmit my returns now".
After completing the File section and e-filing your tax return you will receive two emails from TurboTax. The first email when your tax return was transmitted and the second email when the tax return has either been accepted or rejected.
If you are not e-filing the 2020 tax return then you have to print, sign, date and mail the tax return to the IRS including all Forms and Schedules, any W-2's and Form 1099-'s which have taxes withheld.
See this TurboTax support FAQ for how to print and mail a tax return using the online editions - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
