Example. On Day 1, Customer A uses a payment card to purchase $100 worth of goods from Merchant B. Bank X, the merchant acquiring entity for B, is the party with the contractual obligation to make payment to B in settlement of the transaction. On Day 2, X, after deducting fees of $2, makes payment of $98 to settle the transaction for the sale of goods from B to A. Under paragraph (a)(6) of § 1.6050W-1 , X must report the amount of $100, the amount of the transaction on Day 1, without any reduction for fees or any other amount, as the gross amount of this reportable payment transaction on the annual information return filed under paragraph (a)(1) of § 1.6050W-1 . Under paragraph (c)(1) of this section, X's obligation, if any, to backup withhold arises on Day 1, the backup withholding obligation must be satisfied on Day 2, and the amount subject to backup withholding is $100 (the gross amount of the reportable payment transaction (as defined in paragraph (a)(6) of § 1.6050W-1 )).
26 C.F.R. §31.3406(b)(3)-5