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Possible Cause 2: The taxpayer filed elsewhere willingly.
Resolution: If you issued advance money, try to recoup those funds.
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Possible Cause 3: The taxpayer's information is entered incorrectly and the IRS system thinks it is a different person (double-check the SSN, name, and birthday).
Resolution: Correct the taxpayer’s information, resign, and resubmit.
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Possible Cause 34: You are trying to file an amended return for a taxpayer you did not file the original federal return for, but forgot to check the e-file amendment box at the top of the 1040-X.
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