Business Authorized Signer: Backup Withholding

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Question:

Can an authorized signer sign on behalf of a business for backup withholding on a signature card? Our Backup Withholding portion states "Under penalties of perjury I certify that I am a US Person and that I am not subject to back up withholding." This verbiage is confusing our client. How can we explain to the signer the need to endorse on behalf of the business, or is that even required for a business account?

Answer:

The easiest thing to do is read the instructions: https://www.irs.gov/pub/irs-pdf/iw9.pdf