Processing of point of sale (“POS”) redemptions via a “tap” of a contactless device comprises a POS data collector that facilitates a connection with a contactless device. A merchant scans items for purchase using a POS scanner, which captures product identification information. The POS scanner forwards the product identification information to a POS terminal. The POS data collector intercepts the product identification information between the POS scanner and the POS terminal. A user taps the contactless device in the POS data collector's radio frequency field, and a communication channel is established between the contactless device and the POS data collector. The POS data collector identifies the user via the contactless device and identifies coupons, merchant offers, and other value-added services to redeem with the transaction. The POS data collector forwards this information to the POS terminal, the redemptions are applied to the transaction, and the communication is terminated.