This article provides an overview of the payment system in Japan, focusing on cash and credit card use. Cash is still the most widely used form of payment, accounting for approximately 80% of all transactions. Credit cards are accepted at most stores and restaurants, but not all establishments. There are also several alternative payment methods available such as prepaid cards, mobile wallets, bank transfers via ATMs, and cryptocurrencies. Each method has its own advantages and disadvantages which should be considered before deciding on which one to use for payments in Japan.