This feature manages payment apps. The 'Tap & pay' option doesn't apply to Android Beam and won't include certain apps such as money transfer apps.
When NFC is turned on, you can use the tap & pay feature to pay for items just by touching your phone to a reader at a checkout register. If your device doesn't have a payment app, you can browse Google Play™ for payment apps.
From a Home screen, navigate: Settings > App & notifications .