@fiveohno wrote:
Is there any way to cancel the amendment and revert to the original return?
A joint return could be amended to a different joint return, if you can identify other errors. However, the basis for the amended return would be the current return on file with the IRS after their adjustments, not the amended return you filed (which the IRS thinks was incorrect).
A joint return can never be amended back to separate returns after the original filing deadline (which I believe was July 15, 2021 for 2020 returns).
