Check the exact AGI line on your prior-year federal tax return
Use Form 1040, Line 11 for the prior year
If you filed jointly, use the combined AGI from the return
If you amended the return, use the AGI from the original filed return unless the requesting agency says otherwise
If you do not have a copy, request a tax transcript from the IRS
Use IRS Online Account to view or download a transcript
Use the IRS Get Transcript tool to obtain a tax return transcript
Review your saved tax software file or printed return copy
Check state tax records only if the request specifically asks for state AGI
Enter the exact AGI amount as shown, including cents if required by the form
If the form asks for prior-year AGI and you did not file last year, enter 0 or follow the form instructions