@thisproductsuxnow The IRS requires that the prior year AGI be entered on the tax return to verify that the return is being filed by who you say you are. The IRS compares the 2023 AGI and your Social Security number to what they have in their database for the 2023 filings.
The 2023 AGI is on your 2023 Federal tax return, Form 1040 Line 11.
