If your federal return is rejected due to Error Code F1040-511 or F1040SSPR-511, then the primary taxpayer is already listed as "Spouse" on a previously-filed return with filing status "Married Filing Separate."

If one of the spouses already filed using "Married Filing Separately" as the filing status, the other spouse cannot file a separate return using a filing status of "Single," "Married Filing Jointly," or "Qualifying Widow(er)."

You will need to review and correct your SSN and Filing Status entries in the Basic Info section of the program, then repeat the filing steps to resubmit your return.