You can check with the social security administration. Their information database is where IRS gets a lot of information for their database.
There have been a lot of problems entering the correct AGI to match the IRS database this year. A lot of taxpayers have had their prior year agi reject when they knew it was correct.
Here are some suggestions from IRS:
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.
When self-preparing your taxes and filing electronically, you must sign and validate your electronic tax return by entering your prior-year Adjusted Gross Income (AGI) or your prior-year Self-Select PIN.
Generally, tax software automatically enters the information for returning customers. If you are using a software product for the first time, you may have to enter the information yourself.
There are several ways to find your prior-year AGI:
Preferred Method
You should always retain a copy of your tax return.
- On your 2019 tax return, your AGI is on line 8b of the Form 1040.
- If you used a paid preparer last year, you might obtain a copy of last year’s tax return from that preparer.
- If you are using the same tax preparation software that you used last year, that software will likely have your prior-year tax return for you to access.
- If you’re not using the same tax preparation software as last year, you may be able to access your prior-year software and view an electronic copy of your prior-year return.
- If you are a first-time filer over the age of 16 enter zero as your AGI.
- If you have an Identity Protection (IP) PIN (via a CP01A or the Get an IP PIN Tool), you should enter it when prompted by your software. It will serve to verify your identity, instead of your prior-year AGI or prior-year Self Select PIN. Starting mid-January 2021, you can opt into the IP PIN program through the online tool.
Please refer to additional information available at:
Info from IRS to validate your 2019 agi
