On the surface, using a credit card is easy; you just swipe, tap, or insert to pay. It's important to understand how card payments and interest work to avoid large interest fees. The key to using ...

According to credit card operator Sumitomo Mitsui Card Co., Visa credit cards with tap-to-pay capabilities can be used in at least 680 public transportation services mainly in the United States ...

chip and contactless credit and debit cards. You can also use the SumUp app without a card reader to accept contactless payments using Tap to Pay. SumUp’s rates are straightforward, starting at 2.6 ...