Korea&YouGetting Around Without Cash: Your T-money Card, Explained
From your first card purchase to tapping in hands-free with Apple Pay
Korea's buses and subways run almost entirely on one card: T-money. It's cheap, it's everywhere, and — unlike almost everything else on this list — you don't need a Residence Card, a Korean phone number, or a bank account to get one. It's genuinely the easiest first errand on your settling-in list.
Quick answer: Buy a T-money card at any convenience store or subway station, load cash onto it, and tap it on the reader when you board and again when you get off. No registration or ID is required for a standard prepaid card, and it also unlocks transfer discounts between buses and subways that you don't get paying cash.
Getting Your Card
• Buy a physical T-money card at a convenience store (GS25, CU, 7-Eleven) or a subway station.
• A standard prepaid card is not registered to a name, so there's no sign-up — load money and go.
• Top up at a subway station's card-charging machine or at the convenience store counter — just say how much you'd like added and hand over cash.
Using It on the Bus and Subway
• Bus: tap your card on the reader when you board, and tap again when you get off. The second tap matters — skip it and you can lose your transfer discount.
• Subway: tap at the gate going in, and tap again at the gate on your way out.
Going Cardless: Mobile T-money
If you'd rather not carry a physical card, both major phone platforms support a mobile version.
• Android: install the Mobile T-money app, register, and issue a mobile transit card inside it. Choose prepaid (load money in advance from a bank account, card, or phone billing) or postpaid (register a card and get billed for what you use afterward). Turn on your phone's NFC, then tap the back of the phone on the reader the same way you would a physical card.
• iPhone: T-money works through Apple Wallet. Open Wallet, tap the + button, choose Transit Card, then T-money. As of an April 2026 update, the sign-up screen now includes a dedicated Foreigner option that lets you skip the usual Korean-identity login and top up directly with a non-Korean-issued card — a real fix for the long-standing problem where only Korean cards could load the wallet version. If that option isn't available for any reason, cash top-ups at a convenience store are always a reliable fallback.
Understanding the Transfer Discount
Paying with a transit card — not cash — unlocks a transfer discount between buses and subways, and this is one of the more valuable everyday savings once you're commuting regularly.
• Transferring off a bus: tap your card when you get off, not just when you board — this is the tap that registers the transfer.
• Transferring off the subway: your exit tap at the gate is automatically recorded, so nothing extra is needed.
• The discount only applies if you board your next ride within the designated transfer window, and taking the same bus route again generally doesn't count as a valid transfer.
The Bottom Line
A T-money card is the one piece of settling-in admin that needs no paperwork at all — buy it, load it, tap it. Get one on day one, and public transit stops being a source of stress before anything else on this list is even sorted.