When a taxpayer files a federal individual income tax return with filing status Married Filing Separately, their spouse's return must have the same filing status. If the spouse's return is electronically filed with a different filing status, it will reject with code IND-511-01:
Reject Code: IND-511-01 | Category: Database Validation Error | Severity: Reject
For the filing status selected in the return, the Primary SSN in the Return Header must not be the same as the Spouse SSN on another return for the same tax year with filing status Married filing separately.
*** Additional Information: 1040 ***
To fix the reject, change the filing status on the return to Married Filing Separately.