What fee did Visa implement shortly after MasterCard's announcement regarding NABU?

Visa implemented the U.S. Acquirer Processing Fee shortly after MasterCard's announcement regarding the NABU (Network Access and Business Update). This fee serves a specific purpose in the payment processing ecosystem by helping to cover the costs associated with processing transactions and maintaining the infrastructure necessary for efficient operations. The introduction of such fees often reflects industry dynamics and competition, and in this case, Visa's action was a direct response to MasterCard's move.

The U.S. Acquirer Processing Fee is particularly significant as it targets acquirers—those that process payment transactions on behalf of merchants—allowing Visa to ensure that its network remains robust and capable of handling the demands of payment processing.

The other fees mentioned do not align with the timing or context of Visa's response to MasterCard's announcement. Understanding the U.S. Acquirer Processing Fee can help professionals in the payment industry navigate transaction costs effectively and recognize the competitive landscape that influences such pricing strategies.