Tap your phone on the reader at the cash register, and like magic, you’re done. The charge will be processed using the debit or credit card you entered into your digital wallet.

Accepting mobile credit card payments allows your business to make sales anywhere, anytime. Find out how mobile credit card readers work.

The tap-to-pay feature launches the week of Aug. 18, but there are some things to know regarding "card clash" and transfer discounts.