Dynamic Currency Conversion in Korea 2026: Why Paying in Won Costs 3–8% More, and How to Turn It Off

Bottom line: If a payment terminal or receipt in Korea shows an amount in Korean won (KRW) when you pay with a foreign-issued card, cancel the transaction on the spot and ask the merchant to charge you in the original currency instead — not in won. This won-based charge is called Dynamic Currency Conversion (DCC).

If you didn't know: DCC adds an extra 3–8% on top of your payment. Pay a 1-million-won hotel bill or shopping total this way and you've just handed over an extra 30,000–80,000 won on the spot — and if your card issuer's own foreign transaction fee (typically 1–2%) stacks on top, the loss grows further. Noticing the won amount on your receipt afterward won't help; the charge is already done.

Airport currency exchange counters and hotel front desks often show a prompt like "Pay in KRW?" on the card terminal. Tap "No" to be charged in your card's home currency, which also applies your card issuer's official daily exchange rate. Tap "Yes" and you get whatever rate the merchant or its payment processor sets — usually a worse one. Travelers from Japan and China can check their own card issuer's overseas-use page for DCC warnings before departure so they're not caught off guard at the register.

This article summarizes official guidance and is not legal, medical, or financial advice.

Journey stage: During the trip · Verified 2026-10-15 · Source: Financial Supervisory Service