The reject code IL1040-10100-1 indicates that the Secondary Taxpayer Drivers License number or State ID number did not match the Drivers License or State ID number on the Illinois Department of Revenue production file. To resolve this issue, you should:
Verify that your driver's license information is correct and matches the IDOR records.
If you filed an amended return, use the AGI from the latest accepted and processed return.
Ensure that at least one of the following fields is present and matches the IDOR production file: Secondary IL-Pin, Secondary Prior Year AGI, or Secondary IL Drivers License/State ID Number.
For further assistance, you can contact the Illinois Department of Revenue Taxpayer Assistance line.
when i ran into a similar problem, I indicated that my spouse had no ID, like a DL or state ID and it was for Illinois. this allowed me to e-file.
You can also delete the Il-pins or check here
https://tax.illinois.gov/questionsandanswers/answer.59.html
you must supply some ID like last year's agi which if you filed jointly should be the same for both of you. Unlike Federal, Il wants AGI from last version of the 2024 return that was filed.
