I have found out a mistake I made in 2020 & 2021. So I just mailed 2020 Federal & State. I had to payback my refund. Since my AGI had changed due to mistake, my 2021 has to be amended as well. I got refund for 2021 also, So I have to payback.
I understand that it would cost me late fees so I maybe need to amend 2021 ASAP. But if my amend return 2020 is wrong again, my 2021 amend return may be affected as well since AGI will be changed accordingly.
Should I wait for IRS, or go ahead to amend return 2021 now? I live in California and got extension due to weather till Oct/18 for 2022, so I'll file 2022 later this year.
Thank you very much!
