After you file


@jammerg55 wrote:

My 2020 1040 has already been sbmitted and accepted the only way now is to ammend my 1040.


Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.


See this TurboTax support FAQ on amending a tax return originally completed and filed using the 2020 TurboTax editions - https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-return/01/27439