How should you pay in South Korea? For most international travelers, the best setup is simple: carry a widely accepted credit card, keep a modest amount of Korean won in cash, and use a transportation card for everyday public transit. Korea is highly card-friendly, but a few important situations still make cash useful.
Updated: September 13, 2026.
Are credit cards widely accepted in Korea?
Yes. Korea Tourism Organization says major international card brands such as Visa, Mastercard, JCB, American Express and UnionPay can be used at most Korean stores. For hotels, department stores, restaurants, cafés and many convenience stores, paying by card is usually straightforward.
Still, travelers should carry more than one payment method. A foreign card can occasionally be rejected because of the card issuer, terminal configuration or overseas-payment settings. Before departure, check whether your bank requires travel notification and whether foreign transaction fees apply.
How much cash do you need?
You do not need to carry a large stack of cash for an ordinary city trip. However, Korean won is still useful for traditional markets, small vendors, certain ticket or top-up situations and emergencies. Cash is also important when loading some transportation products.
A practical approach is to withdraw or exchange a modest amount first and add more only if needed. Avoid carrying your entire trip budget in cash.
Why Tmoney is different from a normal credit card
Tmoney is a prepaid transportation card used across public transportation networks in Korea. It is especially useful for subways and buses because you tap the card rather than buying a ticket for every ride.
KTO’s 2026 transportation guide notes that ordinary Tmoney cards are sold at convenience stores and subway locations nationwide. Importantly, foreign-issued credit cards are generally not accepted for ordinary Tmoney purchase or top-up; travelers should be prepared to use cash for these transactions.
This is one reason it is a mistake to arrive in Korea with only a foreign credit card and no Korean currency at all.
Can you tap a foreign credit card directly on buses and subways?
Do not assume that a Visa or Mastercard that works in a café will work by tapping it directly at a subway gate. KTO’s 2026 international visitor transportation guide advises travelers to use regular transportation cards such as Tmoney for standard subway and bus card readers. Some transport ticket machines and counters do accept foreign-issued cards, but that is different from open-loop contactless payment at the gate.
What about single-use subway tickets?
Payment options are improving. KTO reports that single-use tickets on the AREX airport railway can be purchased with credit cards at ticket machines, and its 2026 transport guide identifies new ticket machines on Seoul Subway Lines 1–8 that accept foreign-issued credit cards for single-use tickets.
Even so, travelers making several rides per day will usually find a rechargeable transportation card more convenient than purchasing individual tickets repeatedly.
Choose transport credit separately from shopping money
A tourist payment balance, ordinary transport-card credit and a time-limited transit pass are different products. Check which balance pays for each journey before adding money. Our transport-card guide keeps the current Tmoney and Climate Card comparison together, including the September–October 2026 changes.
Should you use a prepaid tourist payment card?
Tourist-focused prepaid cards can be convenient if you prefer to separate travel spending from your main bank card. KTO also lists products such as Trip.PASS and other traveler payment services. Features differ, so compare loading fees, exchange rates, refund procedures and transportation functions rather than assuming every tourist card works the same way.
Tax refunds: an important reason to carry your passport
Eligible foreign tourists can receive VAT-related refunds on qualifying purchases at participating tax-refund stores. KTO’s current guide says the minimum eligible purchase is KRW 15,000 per receipt.
For the immediate tax-refund system, the current limits are at least KRW 15,000 per transaction, less than KRW 1 million for a single payment, and no more than KRW 5 million in total eligible purchases during the trip. The store must participate in the system, and passport verification is required.
General refunds can also be processed later through downtown counters, airport counters, kiosks and other supported methods. Keep the required receipts and check the procedure before packing purchased goods into checked luggage.
Should you choose KRW when a terminal offers currency conversion?
Some payment terminals may offer to charge your card in your home currency instead of Korean won. This is commonly called dynamic currency conversion. The displayed convenience does not necessarily mean the exchange rate is better. Compare your card issuer’s foreign-exchange terms and the terminal’s offered rate before accepting it.
When in doubt, understand the final amount and currency before confirming the transaction.
ATM tips for international visitors
If you need more cash, use an ATM that clearly supports international cards and check the displayed fees before completing the withdrawal. Your home bank can also impose its own overseas ATM fee or currency-conversion charge.
Keep a second card separately from your wallet. If your primary card is lost or blocked, this small precaution can prevent a major disruption to your trip.
Use this reference when choosing; use the checklist after arrival
Keep this page for acceptance, exchange and refund questions. When you need to complete a first purchase, recover from a rejected card or load transit credit, follow the first-day payment troubleshooting guide.
Bottom line
South Korea is easy to navigate without carrying large amounts of cash, but it is not completely cashless for travelers. International cards work at most stores, while Korean won remains useful for transportation-card loading and smaller transactions. A Tmoney card simplifies public transit, and a backup card protects you if your main payment method fails.
That combination—card + cash + Tmoney—is the most practical starting point for a first trip to Korea.
Official sources:
Korea Tourism Organization — Shopping in Korea
Korea Tourism Organization — Transportation Cards
Korea Tourism Organization — Comprehensive Tax Refund Guide
Featured photo: Ricky T / Unsplash, used under the Unsplash License.