Can I file the current years tax return if the IRS hasn't processed the previous years return yet?

[sjthomas]

I had to mail in the 2020 tax return, the IRS has cashed my check but has NOT processed the return.  I tried to e-file my 2021 return and it was rejected stating the AGI was incorrect.  I enetered the correct AGI from the 2020 return.  But the IRS hasn't processed that return so do I use the 2019 AGI?  Can I e-file? or do I have to mail in the returns until the IRS finally processes the 2020 return

[DoninGA]

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@sjthomas wrote:

I had to mail in the 2020 tax return, the IRS has cashed my check but has NOT processed the return.  I tried to e-file my 2021 return and it was rejected stating the AGI was incorrect.  I enetered the correct AGI from the 2020 return.  But the IRS hasn't processed that return so do I use the 2019 AGI?  Can I e-file? or do I have to mail in the returns until the IRS finally processes the 2020 return

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Since the IRS has not processed the 2020 tax return you enter a 0 (zero) for the 2020 AGI so that you can e-file the 2021 tax return.

[sjthomas]

there was no option to choose "the 2020 return has not processed yet"

how do i get this option?