Korea is mostly card-friendly, but you still need some cash
Seoul and Busan run on cards and mobile wallets. 95%+ of businesses accept Visa and Mastercard, most take contactless, Apple Pay and Google Pay work at any NFC terminal. But traditional markets (Namdaemun, Gwangjang, Jagalchi in Busan), street food vendors, and smaller local restaurants still prefer or require cash. You'll want 50,000-100,000 KRW in your wallet at minimum.
The good news: Korean ATM fees are moderate, the network is dense, and foreign-card support is widespread in major cities. With the right card in your wallet, you can pull KRW at essentially mid-market rates.
Fee structure
- Local Korean ATM fee: 3,500-5,000 KRW per withdrawal at most big-five bank ATMs
- Your home bank foreign ATM fee: $0-$5 depending on your card issuer
- Exchange rate markup: 0% if you decline DCC (card issuer uses Visa/Mastercard rate); 4-7% if you accept DCC
Best case (Schwab card + big-five bank ATM + decline DCC): total cost about $3-5 per withdrawal, rate is mid-market. Worst case (regular US card + accept DCC at convenience store ATM): 7-10% total cost including poor rate.
Where to find foreign-card ATMs
- Incheon Airport (ICN): multiple Global ATMs in arrivals past customs
- Gimpo Airport (GMP): Shinhan and KB Kookmin in arrival hall
- Major subway stations: Myeongdong, Gangnam, Hongdae, Seoul Station, Jongno 3-ga — all have Global ATMs in the paid area
- Bank branches: KB Kookmin, Shinhan, Woori, Hana, NH Nonghyup branches display "Global ATM" signage
- Department stores: Lotte, Hyundai, Shinsegae in major cities
- Convenience stores (sometimes): GS25, CU, 7-Eleven may have foreign-card ATMs, but not all machines accept international cards
The DCC trap
Korean ATMs have adopted the same DCC prompt as everywhere else. When you insert a foreign card and select your withdrawal amount, you'll see: "would you like to be charged in your home currency (USD) with a guaranteed rate?"
Always decline. The "guaranteed" rate is the ATM operator's rate, typically 4-7% worse than your card issuer's Visa or Mastercard rate. On a 500,000 KRW withdrawal, accepting DCC costs you $15-25 extra for no reason. Always choose KRW and let your bank handle the conversion.
Best cards for Korean ATM withdrawals (2026)
- Charles Schwab High-Yield Investor Checking (US): unlimited ATM fee rebates worldwide, no foreign fee — the gold standard
- Fidelity Cash Management (US): ATM rebates, no foreign fee
- Capital One 360 Checking: no foreign transaction fee on Capital One side
- Revolut Premium/Metal: no foreign fee up to monthly ATM limits
- Wise Multi-Currency Debit: 2 free withdrawals per month under 200 USD equivalent
Withdrawal strategy
Since per-withdrawal fees are fixed, pulling larger amounts per transaction is cheaper per KRW. Practical: withdraw 400,000-800,000 KRW at a time (enough for 3-5 days of cash spending). Don't exceed what feels safe to carry — Korea is extremely safe but pickpockets occasionally work tourist zones (Myeongdong, Hongdae on weekend nights).
A week in Seoul often uses 200,000-500,000 KRW in actual cash for a card-first traveler — one or two ATM trips covers you.
T-money card: not the same as a bank card
The T-money card (transport) is a separate prepaid stored-value card you buy at any convenience store for 2,500-4,000 KRW. Top it up with cash at the store or at subway station kiosks. It's essential for smooth transport in Seoul (subway, bus, some taxis), but it's not a bank card — you can't use it to withdraw cash or buy groceries outside the transport ecosystem.