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Error
The taxpayer identification number (TIN) on your return was already used on another accepted return for this tax year.
Solution
Review the taxpayer's TIN on your return.
For a given tax year and return type, a taxpayer's TIN can be used on only one accepted electronic return.
- Verify that the TIN is entered correctly.
- If you have already filed a return for this tax year, do not file another original return. File an amended return if changes are needed.
- If you did not file a prior return and believe the TIN was used without your permission, contact the IRS for guidance on possible identity theft.
After resolving the issue, resubmit only if appropriate.