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I completed the W9 tax form. How do I make sure my TIN passes validation?
- The name (individual or business legal name) entered in line 1 of the W-9 tax form must match EXACTLY the name you have registered with the IRS.
- Your SSN (for individuals) or EIN (for companies) must match EXACTLY the number you have registered with the IRS.
- Any mismatch between the name and the TIN on the W-9 form compared to what is registered with the IRS will cause TIN validation to fail.