Special Instructions to Validate Your 2020 Electronic Tax Return If your 2019 tax return has not yet been processed, enter $0 (zero dollars) for your prior year adjusted gross income (AGI). If you used the Non-Filers: Enter Payment Info Here tool in 2020 to register for an Economic Impact Payment in 2020, enter $1 as your prior year AGI. For more information, see Claiming the Recovery Rebate Credit if you aren’t required to file a tax return. Adjusted Gross Income Adjusted Gross Income (AGI) is defined as gross income minus adjustments to income. Gross income includes your wages, dividends, capital gains, business income, retirement distributions as well as other income. Adjustments to Income include such items as Educator expenses, Student loan interest, Alimony payments or contributions to a retirement account. Your AGI will never be more than your Gross Total Income on you return and in some cases may be lower. Refer to the 1040 instructions (Schedule 1) for more information. If you are filing using the Married Filing Jointly filing status, the $72,000 AGI limitation applies to the AGI for both of you combined. To e-file your federal tax return, you must verify your identity with your AGI or your self-select PIN from your 2019 tax return.