After you file


@chslas wrote:

I have the same problem, and was told 2/12 /2021 was the date, but didn't work for me today!

If a correct date is found please post, I am waiting to efile my 1040X.


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 online editions - https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/01/27577

The 2020 IRS Form 1040-X is scheduled to be available on 02/26/2021 (subject to change)