If you filed a federal tax return last year: Get a copy of your return. You can find your prior year AGI in the following places (based on the form that you filed):
- If you filed Form 1040, your AGI will be listed on line 37.
- If you filed Form 1040A, your AGI will be listed on line 21.
- If you filed Form 1040-EZ, your AGI will be listed on line 4.
If you do not have a copy of last year's return on hand, you can get your AGI by calling the IRS Help Desk at 1-800-829-1040.If you DID NOT file a federal tax return last year: Enter "0" for your "prior year AGI". Since you did not file a tax return last year, the IRS does not have a prior year AGI on file for you. If you did not file a return last year, you should just enter "0".