Can You Tap a Foreign Credit Card on the Seoul Subway and Bus?
Not yet. You cannot tap a foreign card on a Seoul subway gate or bus reader today, and no pilot lines are running. The city and T-money plan it from 2027. What does work today is below.
Draft: the payment facts in this guide come from the operators' official pages and have not yet been checked by a person. Confirm with the operator before you rely on them.
What works today
- Ticket machines: since 17 March 2026, 440 new machines at 273 stations on Lines 1 to 8 take foreign credit and debit cards for single-journey tickets and Climate Card short-term passes (also Kakao Pay and Naver Pay), with a service charge of about 3.7% on average.
- iPhone: the MobileTmoney app, topped up with a Mastercard in Apple Wallet (April 2026).
- Android: the KOREA TOUR CARD app, topped up with foreign cards such as Mastercard.
- AREX Express tickets: AREX lists Visa, Mastercard, JCB, Diners Club, American Express and UnionPay on its machines and online, and Alipay, WeChat Pay and other wallets online. The all-stop train uses transport cards or single-journey tickets.
What is planned
- Buses: T-money agreed in September 2026 with Visa, Mastercard, UnionPay, JCB and Hana Card to build an open-loop system. After development and tests through the end of 2026, Seoul city buses start in 2027, then Incheon and airport buses.
- Subway: Seoul's roadmap replaces the Lines 1 to 8 terminals with EMV readers in 2027, and widens it to village buses, private rail and the Seoul area between 2028 and 2030. The operator says EMV readers alone do not make foreign cards work at once: the fare settlement still has to be agreed.
What to do
- Bring a way to pay that works today: cash for a T-money Travel Card, or a foreign card at a new ticket machine.
- See transit card types.
Frequently asked questions
- Can I tap my Visa or Mastercard on the Seoul subway?
- No, not yet. Seoul plans EMV readers on Lines 1 to 8 in 2027 and buses from 2027; foreign-card tapping is expected to follow.
- Can I pay for AREX Express with a foreign card?
- Yes: AREX lists Visa, Mastercard, JCB, Diners Club, American Express and UnionPay for express tickets.
- What if I only have a foreign card?
- Use a new subway ticket machine for a single ticket or a Climate Card pass, buy an AREX Express ticket, or top up a phone transit app with a Mastercard.
Related
Sources: Seoul city: open-loop payment roadmap (Korean, 2025-10-16) · Seoul city: foreign cards at the new ticket machines (Korean, 2026-03-16) · Newspim: T-money signs the open-loop agreement (Korean, 2026-09-17) · Mastercard: iPhone transit payments in Korea (9 April 2026) · AREX: express usage guide (accepted cards). Checked 2026-11-09. Fares, times and rules change: confirm with the operator before you travel.