Paying at Korean Clinics: Credit Cards, Cash and the DCC Surcharge Trap

Payment methods most clinics accept

Larger aesthetic and dermatology clinics catering to international patients generally accept major international credit cards alongside cash, and some offer installment payment plans for larger procedures. Smaller or lower-cost clinics may lean more heavily on cash, so confirm accepted payment methods when booking rather than assuming card payment is guaranteed everywhere.

What Dynamic Currency Conversion actually is

DCC is a feature some card terminals offer that converts your bill into your home currency at the point of sale, letting you see a familiar number before signing -- but the exchange rate used is typically set by the local merchant or their payment processor, and includes a markup well above your card network's standard rate. On a clinic bill of any real size, this markup can add up to a meaningful extra cost for a choice that seems purely cosmetic.

How to avoid the markup

• Always select payment in the local currency (KRW) when a terminal or receipt asks you to choose -- your own card issuer will handle the conversion at a better rate.
• Check your card's foreign transaction fee policy before your trip, since some cards charge nothing extra on foreign purchases while others add a percentage.
• Review your card statement afterward to confirm you were charged in KRW, not pre-converted, and flag it with your bank quickly if a DCC charge slipped through.

It also helps to notify your card issuer of your travel dates before you leave, since an unexpected international charge can occasionally trigger a fraud hold at exactly the wrong moment -- mid-checkout at a clinic. A quick call or app notification beforehand avoids that friction entirely, alongside making sure you always choose local-currency billing at the terminal.