You should amend your 2020 tax return
If you withdrew your 2020 excess contribution to your Roth IRA before the due date of the 2020 tax return, make sure that you also withdraw the related earnings.
On your 2020 amended tax return, do not report the excess contribution as it has been withdrawn. The earnings have to reported and taxed. These earnings are also subject to 10% early withdrawal penalty.
Please see this TurboTax FAQ for instructions on how to amend your tax return in TurboTax.
When you receive the 2021 form 1099-R (in 2022) for this withdrawal, there is no further action needed.
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