This rejection states the primary taxpayer on this return has been claimed as a dependent on another return.
IND-510
IND-510 is an IRS e-file rejection code indicating that the taxpayer's Social Security Number (or TIN) has already been used on another electronically filed return, often because the taxpayer has been claimed as a dependent or the SSN was used as a primary taxpayer on another return.
IND-510-02
How do I fix this?
The spouse listed on your return is listed as having already filed a tax return for this tax year. You must remove the spouse from your return to resubmit the return by electronic filing. If you feel this is an error, please print your return by creating a PDF document in the summary section, sign, and mail the return for filing.