Subways, buses, taxis, convenience stores, most restaurants and even many street stalls take card.
Visa and Mastercard are universal; Amex is hit-or-miss.
Traditional markets, tiny old eateries, some temples and the odd street cart are cash-only.
A little cash saves the moment.
Many terminals still insert the chip rather than tap.
Just hand the card over, the staff will run it.
Incheon has the worst rates in the country.
Change just ~₩50,000 for the bus or taxi, then sort the rest in the city.
The licensed booths in Myeongdong give the best rates in Seoul, usually with no commission.
Bring USD, EUR or JPY cash to swap.
Often the simplest route, no booth-hunting.
Mind the rules in the next section.
Woori, KB Kookmin and convenience-store ATMs (GS25 / CU / 7-Eleven) take foreign cards 24/7.
Look for the Global / Visa-Plus / Cirrus marks.
When the ATM asks 'charge in USD / EUR?', say no and choose KRW (원).
'Your currency' hides a markup (DCC), let your own bank do the conversion.
Expect ₩3,000–6,000 per withdrawal on the Korean side, plus your bank’s foreign fee.
Take out larger amounts less often.
Made for tourists: load foreign cash at a kiosk (airport + major stations) and it becomes a prepaid Mastercard plus a T-money transit card in one. ₩5,000 one-time fee.
You can top up WOWPASS in-app with a Mastercard; Visa has restrictions, so plan to load cash at the kiosk instead.
One tap for subway, bus and most taxis.
Buy it and top up with cash at any GS25 / CU.
Service is built into the price; nobody expects a tip.
Leaving one often gets it handed straight back.
Spend ₩15,000+ at a Tax Free shop and get roughly 5–8% back with your passport at the airport or a downtown kiosk.
How tax refund worksUpdated June 2026. Rough rule: card for everything, a ₩50,000 note for the exceptions, KRW at every ATM.
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