I see what you are saying. 2020 was the first year that I had the 401(k) and the way I handled the contributions resulted in me getting the deduction twice, once on Line 1 of the 1040 and again on Line 10c. However, it did not affect my tax liability because my deductions on Line 12 were more than enough to cover my AGI on Line 11, even with the 401(k) contributions added back to AGI. Is there any other reason that I should file an amended return?
