Question

Federal tax due increases when filing an amended return for reduced boxes 3-6 on W2-C

Forum|Forum|3 years ago
December 30, 2022
1 reply
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I'm filing an amendment for 2021, because my employer sent me a 2021 W2-C with reduced values for boxes 3-6 (I returned a sign-on bonus). When I enter in the corrected values, my federal due goes up, even though Social Security Tax and Medicare Tax are accurately calculated.

Why would my federal due suddenly increase because of changing boxes 3-6?

VolvoGirl

Employee

Only thing I can think of is if you had 2 or more employers and originally you went over the max for Social Security and got the excess ss tax back. Now you have a reduced Social Security so you have to pay back the excess.

Check 1040 Schedule 3 line 11 which goes to 1040 line 31.