Where Foreign Credit Cards Work in Korea (And Where They Don't)
Visa and Mastercard work in most places — but Korean subways, small restaurants, and online services are a different story. Here's exactly what to expect.
If you've ever had your card declined at a Korean subway turnstile, you're not alone. Korea has a unique payment landscape that catches a lot of foreign visitors off guard — even those who travel frequently.
The good news: most physical shops accept foreign cards
Department stores, convenience stores (GS25, CU, 7-Eleven), chain restaurants, and hotels almost always accept Visa and Mastercard. Amex has slightly lower acceptance, but works at major establishments. Tap-to-pay (contactless) usually works wherever chip cards do.
Where foreign cards consistently fail
Public transit is the biggest surprise. The Seoul Metro and all buses use a separate prepaid system — T-money — and do not accept foreign cards directly at the gate. You need to buy a T-money card at any convenience store (₩4,000 for the card, then load cash onto it).
Small local restaurants and street food stalls are often cash-only. If you're planning to eat at local spots or markets, carry ₩50,000–100,000 in cash at all times.
Korean websites and apps are a separate problem
Booking KTX through korail.com or ordering food through Korean apps typically requires a Korean phone number for SMS verification — and a Korean-issued card. This is why platforms like Klook and Trip.com exist: they handle the Korean side and let you pay with your foreign card.
The backup stack that actually works
T-money card (₩4,000 + load) — covers all transit.
WOWPASS — a prepaid card you can load with foreign currency, works like a debit card broadly.
Cash — ₩50,000–100,000 for street food and small spots.
Klook / Trip.com — for any booking that requires a Korean account.
ATMs: where to find ones that accept your card
Look for ATMs labeled 'Global ATM' or 'Foreign Card Accepted'. Woori Bank, KEB Hana Bank, and Post Office ATMs are the most reliable. The ATMs inside convenience stores (GS25, CU) also typically accept foreign cards — and they're everywhere.
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