How to Pay in Korea (2026): Foreign Cards, Cash, Tmoney & Subway Tickets

Reviewed October 9, 2026. Visiting Korea with a credit card from the United States or another country? You can pay by card at many Korean businesses, but that does not mean every subway top-up machine, market stall, cash exchange booth or tourist transport pass uses the same payment rules. The easiest way to avoid a stressful first day is to understand the difference between shopping payments, cash in Korean won, and transit fare products.

On this page · 12 practical sections

1. The quick comparison: what should you carry?
2. Step 1 — Understand the Korean won before paying
3. Step 2 — Use your foreign card sensibly at shops and cafés
4. Step 3 — Exchange money through legitimate channels
5. Step 4 — Know why a regular Tmoney card is different
6. Step 5 — The important 2026 update: selected Seoul ticket machines take overseas cards
7. Step 6 — Tourist prepaid cards: useful option, not a requirement
8. Step 7 — ATMs and cash withdrawals without unnecessary surprises
9. Step 8 — A safe first-day payments plan
10. Useful Korean phrases for payments
11. Frequently asked questions
12. Official sources, updates, and limitations

The quick comparison: what should you carry?

Payment method	Works well for	What to check
International Visa/Mastercard or other accepted bank card	Many hotels, restaurants, cafés and larger shops	Merchant acceptance, overseas transaction fees, card network and terminal compatibility
Korean won cash	A backup for smaller vendors, certain machine top-ups or unexpected card refusal	Exchange rate, any commission and the actual cash required
Regular Tmoney transit card	Eligible public transport after separate card purchase/top-up	Where to obtain and recharge, cash requirements, and routes where it works
Short-term Climate Card and single-journey tickets	Specific participating Seoul subway fare products	New machine availability, product eligibility, foreign-card fee and service range
Tourist prepaid payment card	A traveler who wants a separate spending balance, depending on provider terms	Issuance fees, exchange rates, available merchants, refunds and separate transport balance

The Korea Tourism Organization’s official currency guide says credit cards are widely accepted at major hotels, department stores and general shops, while some businesses may not accept them. The KTO’s May 2026 foreign-visitor transport guide (PDF) distinguishes regular Tmoney top-up from specific products available at newer machines.

Step 1 — Understand the Korean won before paying

Korea’s official currency is the Korean won, written KRW or ₩. In everyday use, you will see paper bills of ₩1,000, ₩5,000, ₩10,000 and ₩50,000, alongside coins. Check the numeric amount before paying; a sign reading ₩10,000 means ten thousand Korean won, not ten thousand dollars.

There is no single exchange rate we can promise throughout your trip. Your card issuer’s exchange rate, any foreign-transaction charges, and the rate displayed by a bank or authorized currency-exchange counter can differ. Rates change over time, so this guide intentionally does not publish an assumed USD/KRW rate.

Step 2 — Use your foreign card sensibly at shops and cafés

• Before departure: check that international purchases are enabled and note your bank’s overseas-transaction and ATM withdrawal charges.
• At a Korean payment terminal: use an accepted card network; some small merchants, terminals or particular payment services may not support your specific foreign card.
• Keep a backup: a second accepted payment option can be useful if the first card declines.
• Ask about the amount: check the screen or printed receipt if the price appears different from what you expected.
• If offered a currency choice: compare paying in KRW with the conversion shown for your home currency. The merchant’s conversion may have a less favorable rate; you can check your card issuer’s guidance before traveling.

A globally recognized card logo does not guarantee every local payment service will accept your particular card or phone wallet. Domestic app-based verification, identity checks or local bank transfer requests can create additional restrictions. If an unfamiliar merchant requires a Korean account you do not have, ask staff whether a normal card or cash alternative is available.

Step 3 — Exchange money through legitimate channels

The Korean Tourism Organization directs visitors to banks and authorized money-exchange centers for converting cash to Korean won. Published general weekday bank hours are often around 09:00–16:00, but opening hours differ by institution and location; airport exchange centers may have longer hours.

Its airport foreign-exchange guide explains that currency exchanges operate at major airports with differing terminal locations, operators and hours. Always check the current counter information instead of assuming a branch listed in an older article remains open.

• Compare the displayed exchange rate and any service fee before handing over currency.
• Bring an acceptable identification document only when required by the legitimate provider; do not give your passport to an informal street seller.
• Check whether your older, damaged or uncommon banknotes are accepted.
• Count the KRW you receive and retain an exchange receipt when appropriate.
• Avoid publicly sharing images of your passport, cash cards or identifiable transaction slips.

Step 4 — Know why a regular Tmoney card is different

Tmoney is a prepaid fare system used on eligible Korean public transportation. The physical card may be sold at convenience stores or transport-related outlets, and the fare balance can be charged separately. Buying a card and adding usable transit value are distinct steps.

The Korea Tourism Organization’s 2026 transportation payment guide specifically lists regular prepaid Tmoney purchases or top-ups at convenience stores and subway stations as cash-only for the relevant services, with foreign-issued cards not accepted there. It is not safe to infer otherwise from a different transit ticket machine accepting Visa or Mastercard.

The exact purchase and reload rules can vary by seller or product and may be updated. Read on-screen instructions or ask an official station attendant if you need a different method. A stored-value transport card is not necessarily a general-purpose card for online bookings.

Step 5 — The important 2026 update: selected Seoul ticket machines take overseas cards

In a March 17, 2026 announcement, the Seoul Metropolitan Government said 440 new vending machines at 273 stations on subway Lines 1–8 would accept eligible foreign-issued debit/credit cards and other supported payment methods for single-journey tickets and Climate Card short-term products. This rollout changes some specific tourist payment options but does not mean all fare machines or travel cards follow one rule.

The city described an average service fee of approximately 3.7% on international-card purchases or recharges through the upgraded machines. Check the fee and final amount displayed before confirming any transaction; your own card issuer may apply additional charges.

Seoul’s current Climate Card policy page also explains important pass scope and eligibility restrictions. Its tourist short-term passes have different conditions from the resident-oriented Climate Pass that launched in September 2026. Airport or regional routes may be excluded even where a pass works well for central Seoul.

Step 6 — Tourist prepaid cards: useful option, not a requirement

Some companies market combined currency-exchange and payment cards for overseas visitors. The Korea Tourism Organization includes tourist transit and prepaid-card background information; its coverage and promotional descriptions are not an independent guarantee that a particular commercial card is best for you.

Before buying a tourist prepaid card, compare total issuance cost, exchange conversion, supported retail purchases, refund/withdrawal charges, merchant acceptance, card loss protection and what happens to any remaining balance. Transit and shopping balances may be separate; confirm each service’s rules instead of assuming one balance covers every transaction.

If you already have a bank card that works reliably and a clear transport plan, another paid card may not add enough value for your trip. No merchant or card provider sponsors this guide.

Step 7 — ATMs and cash withdrawals without unnecessary surprises

An ATM marked for international card use may support some, but not all, foreign-issued bank cards. Do not assume a normal domestic ATM can read your card simply because it displays English text. Check your bank’s supported networks, cash-advance or withdrawal rules, per-transaction limits and overseas ATM charges.

• Use an ATM at a reputable bank, airport or other staffed location when possible.
• Verify the withdrawal amount and any ATM service fee before completing the transaction.
• Cover your PIN and decline unexpected offers of assistance from strangers.
• If your card is rejected, try an officially indicated compatible machine or contact your issuer; do not repeatedly enter incorrect PINs.
• Keep receipts private, and never share a photograph showing a full card number or banking information.

Step 8 — A safe first-day payments plan

• Before boarding: check your bank’s foreign purchase settings, card-network compatibility and local-currency conversion options.
• At the airport: if you need cash, look for a legitimate bank or money-exchange counter and verify its rate and hours.
• For city transport: determine whether you need ordinary Tmoney, a single-use ticket, a tourist Climate Card or another eligible fare product.
• At a subway ticket machine: follow the machine’s actual instructions—don’t assume a foreign credit card works for every product.
• At a restaurant or market: check the payment method before ordering if the venue is unfamiliar.
• Before sleeping: keep enough accessible funds for the next morning and save the contact information needed if your card is lost.

Keep your phone connected, too. Bank fraud alerts, messages from your lodging and map directions may require internet access. If you are still choosing a travel data plan, read our Korea eSIM vs SIM vs pocket Wi-Fi guide →. A data plan does not guarantee that a particular card or mobile payment app will be accepted by a merchant.

Useful Korean phrases for payments

Korean	English
카드 돼요?	Can I pay by card?
현금만 돼요?	Cash only?
얼마예요?	How much is it?
영수증 주세요.	Please give me a receipt.
교통카드 충전하고 싶어요.	I’d like to top up a transit card.
외국 카드 사용돼요?	Does a foreign-issued card work?

Frequently asked questions

Can I travel through Seoul without cash?

Sometimes, but not every visitor can rely on that. Many businesses accept foreign credit cards, and new Seoul ticket vending machines support foreign cards for certain products. Other transport reload services and merchants may still require cash. A backup option is sensible.

Will a U.S. debit card recharge any Tmoney card?

Do not assume that. Official foreign-visitor transport information distinguishes regular Tmoney from the special overseas-card-enabled single-journey ticket and short-term Climate Card machines. Check the particular card and terminal.

Does a Climate Card work from Incheon Airport?

Not universally. The exact route and service range matter, and some airport transport services are excluded. Confirm your chosen route on the Seoul government’s official Climate Card page and the transport operator’s current information.

Is a tourist prepaid payment card always cheaper?

No. It depends on conversion rates, issuance and refund charges, how much you spend and whether your existing bank card has foreign fees. Compare actual terms rather than marketing promises.

Should I exchange all my money at the airport?

There is no single best amount. Compare official rates and fees, consider your first-day needs and assess safe storage and card alternatives. This guide does not give personalized financial advice.

Official sources, updates, and limitations

Sources reviewed October 9, 2026: VISITKOREA — Korean Currency and Exchange; VISITKOREA — Foreign Visitor Transportation Guide (May 2026); Seoul Metropolitan Government — International Payment Machines (March 2026); Seoul Metropolitan Government — Climate Card Scope; VISITKOREA — Airport Foreign Exchange.

Editorial independence: This is an independent researched travel guide, not financial advice, a foreign-exchange rate quotation or a sponsored product comparison. Availability, machine rollout, operator hours and fees can change. A government notice describing a payment method does not guarantee that every machine or seller is equipped or working on your visit.

Explore more: Seoul Transport and Climate Card Guide · Traditional Market Guide · Incheon Arrival Checklist · Official Korea Travel Resources.