Solved
The AI says that I can look at the Form EIC and it will show me which SSN is causing the issue, but I see no way to do that. Does this work on mobile? Or do I have to access this feature to revise on my computer?
What is the reject code? The 2 digits after the 3 digit code might indicate which dependent. Here’s a couple reject codes that may help
Reject 507 duplicate ssn
Reject code 517
If it thinks another return has been been filed then you have to print and mail your return and let the IRS sort it out.
If a ssn on your return has been used on another return it could be just a mistake and someone else accidentally typed the wrong ssn on their return. Or if your dependent filed a return did he check the box that says he can be claimed on someone else's return?
How to mail a return from the Online version
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