@hhtax5
First, check your 2020 tax return. If you did not report the excess contribution and did not include form 5329 to calculate the additional 6% penalty, then you need to file an amended 2020 tax return to report the excess contribution and pay the tax.
Then, you need to withdraw the excess 2020 contribution before December 31, 2021. (Remember that you can withdraw contributions from a Roth IRA at any time without paying tax. You will pay income tax and a penalty if you withdraw the earnings before age 59 1/2.)
When preparing your 2021 tax return, TurboTax will ask you for the excess Roth contribution from 2020, which is reported on your amended 2020 tax return form 5329. TurboTax will ask if you made any new Roth contributions or took any Roth withdrawals. When you report that you made a withdrawal equal to the 2020 excess, that will be reported on your 2021 form 5329 and it will zero out the excess so there will be no further 6% penalty.
