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What is a “B” Notice?

A “B” Notice is a backup withholding notice. There are two “B” Notices — the First “B” Notice and the Second “B” Notice. You must send the First “B” Notice and a Form W-9 to a payee after you receive the first CP2100 or CP2100A Notice with respect to this account for soliciting a correct Name/TIN combination. You must send the second “B” Notice to a payee after you receive a second CP2100 or CP2100A Notice within a 3 calendar year period. The text of the Second “B” Notice is different from that of the First “B” Notice. The Second “B” Notice tells the payee to contact IRS or SSA to obtain the correct Name/TIN combination. The mailing of the second notice should not include a Form W-9. The payor must receive validation of the payee’s Name/TIN combination from SSA or IRS after sending the second “B” Notice. Payees should be instructed regarding how to request validation of their name/TIN combinations in accordance with the procedures described in Part 4. Generally, you do not have to send a “B” Notice more than two times within three calendar years to the same account.

For additional information see Publication 1281, Backup Withholding.