Yes, if you are filing your 2024 tax return and you don't have your 2023 AGI, you will have to mail your tax returns.
If you don’t have your2023 return, you can order a free digital transcript of your return from the IRS. You can also view your online transcript immediately, while a mailed transcript takes 5–10 days to receive.
Choose tax return transcript when asked what type of transcript you want.
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