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Correcting W-9 Form with Multiple Tax Classifications
March 12, 2025
Q. My company received W9 with two boxes checked in the W9 3a section. The vendor checked individual/sole proprietor box and LLC box without providing tax classification specification (C = C corporation, S = S corporation, P = Partnership). Is this W9 completed correctly or should we contact the vendor and ask to correct W9 tax classification?
A.
(Answered by IOFM's third-party tax expert)
Almost certainly. They are trying to say that they are an LLC taxed as a sole proprietor. However, rather…
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