For PayPal, the motivation behind this move is apparent. Venmo and Zettle charge businesses a transaction fee of 2.29 percent plus nine cents for each transaction. By encouraging more businesses to adopt tap-to-pay technology, PayPal stands to benefit financially, even if customers don’t directly use their services. Furthermore, PayPal’s involvement in the entire retail process is increased, as major stores like Starbucks already accept Venmo as a payment method.