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Can a Company Have Multiple TINs? Clarifying IRS vs. State-Issued Numbers
November 24, 2025
Q. Is it possible for a company to have multiple TINs? We have a vendor who's provided two different W9 forms, each with a different TIN. They're telling us that one of the numbers is a Georgia number, but I've never heard of the IRS issuing multiple TINs, particularly one that is applicable at a state level. An IRS TIN check matched to one of the W9 forms only.
A.
(Answered by IOFM's third-party tax expert)
No, a company only has one TIN with the IRS.It sounds like the other number is a number…
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