The most common is at ticket machines found at train and subway stations. Simply insert your card, select the amount you want to add, and pay with cash or a credit card. Many convenience stores also have machines where you can top up your IC card. Just look for the “????” (charge) sign or ask the staff for help.

In Japan, topping up your IC card (like Suica, Pasmo, or Icoca) is a straightforward process that can be done at several convenient locations. The most common places are the multi-functional ticket machines found at almost every railway and subway station; these are usually color-coded (pink or blue) and feature an "English" button for ease of use. You can also top up at 7-Bank ATMs located inside 7-Eleven convenience stores, which are ubiquitous throughout the country. Additionally, most major convenience stores (FamilyMart, Lawson, etc.) allow you to top up at the front counter—simply show your card to the clerk and say "charge." It is important to remember that these physical top-ups typically require cash (Japanese Yen). For those using digital IC cards on an iPhone or Apple Watch, you can top up directly within the Apple Wallet app using a linked credit card (Mastercard or Amex are most reliable). Some high-end hotels and specialized "Fare Adjustment" machines inside station gates also provide top-up services if your balance is too low to exit the station.