What prior year AGI amount do I use if I had an ITIN when I filed my 2024 tax return, but have a SSN to file my 2025 tax return?

If you filed your Tax Year 2024 tax return using an ITIN (IRS Individual Taxpayer Identification Number) but are using a SSN to file your Tax Year 2025 tax return, you should use "0" (zero) as your prior year AGI amount.