@zelinski Do you mean the self employment tax deferral or did you pay employees? You don't enter it on your 2020 or 2021 return. You just pay it.
Half of the deferred amount is due on December 31, 2021, and the other half is due on December 31, 2022.
Check if you have a Schedule 3 line 12e which goes to 1040 line 31.
IRS Reminder to pay and how to pay
IRS reminder: For many employers and self-employed people, deferred Social Security tax payment due ...
