Question

I received a corrected 2020 W-2 in 2021. Can I report the W-2 correction on my 2021 return?

Answer

No. You can’t correct the mistake on your 2021 return. Instead, you might need to amend your 2020 return using Form 1040X.

You should file a 1040X amendment if your corrected W-2:

  • Increases your 2020 tax liability
  • Affects your allowable credits or deductions

You can’t e-file a 1040X, so you’ll have to mail it to the IRS. Attach a copy of your corrected W-2 to the amended return. Keep in mind that you might also need to file an amendment to your state return.

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