Prepare a working payment card, a modest cash backup and a clear way to check charges before your first day in Korea. The local currency is the Korean won (KRW). A card can be useful for everyday spending, but your own issuer, the merchant and the particular transaction still matter. Build a fallback before you need one.
This guide is for international visitors planning arrival-day purchases. Add these steps to your first-trip checklist for South Korea, alongside transport and accommodation details.

Reused Gemini-generated travel-planning concept image. The blank notebook and cards do not depict an actual ticket, product, venue or booking.
1. Check your card before departure
Ask your card issuer whether overseas purchases and cash withdrawals are enabled. Confirm the card's expiry date, available funds or credit, daily withdrawal limit and the fees that apply to your account. Visa's travel checklist recommends checking overseas activation and withdrawal limits with the bank; it also advises knowing your PIN and keeping issuer contact information accessible.
Make a short private note of what to do if a transaction is declined. Keep the issuer's support number available without relying entirely on the same phone you use to approve payments. Never put a PIN or card security code into a shared itinerary.
If you carry a second payment method, check that it is actually ready to use. An expired backup card or an app that needs a home-country text message is not much help at a checkout.
2. Plan the first few purchases
Write down what you expect to pay for between landing and reaching your accommodation: transport, food, a small shop purchase or a booking balance. Beside each item, note the payment method you have actually confirmed. Leave an unknown item marked as a question rather than assuming everything will accept the same card.
The Seoul Metropolitan Government's payment guide says credit cards are accepted at most stores, restaurants, hotels and tourist destinations. That broad guidance is useful for planning, but it does not establish acceptance of your particular card at every machine or small business.
| First-day question | Prepare an answer |
| How will I pay for my arrival route? | Check the chosen operator's purchase instructions before landing. |
| What if the first card fails? | Have another ready payment method and your issuer's contact details. |
| Where will I get cash if needed? | Identify a suitable exchange counter or issuer-compatible ATM and its hours. |
| How will I check the charge? | Read the currency and amount before confirming, then retain the receipt. |
3. Choose an exchange location around your arrival
The Korea Tourism Organization's currency-exchange FAQ identifies banks, exchange service centers and authorized exchanges as options, and points visitors to airport exchange information. Check a location that fits your terminal and actual arrival time.
Seoul's guide says exchange-counter hours vary and identification is required. Keep your passport accessible for the counter's checks. Do not rely on a general airport opening time as proof that a specific exchange desk will be available.
Decide how much cash you need for the next stage of the trip rather than copying somebody else's fixed budget. At the counter, ask what amount of won you will receive after any stated charges. Count the money and keep the receipt before walking away.

Reused Gemini-generated travel-planning concept image. The blank tablet and cards do not show a real app, provider service or reservation.
4. Read currency-conversion choices carefully
A card terminal or ATM may offer to convert the transaction into your home currency. Visa explains this as dynamic currency conversion (DCC). Its guidance says the display and receipt should show both currencies, the exchange rate and additional fees or markup, and that the choice should remain with the cardholder.
Pause long enough to read the offer. Ask for clarification if the amount or currency is unclear. Visa recommends declining the conversion and contacting the issuer if required information is missing or you feel pressured. Your own card's terms still matter; this guide does not promise that one option always produces a particular saving.
5. Keep the first successful receipt
Before leaving the checkout, check the merchant, amount and currency against the purchase. Keep a receipt or a clear personal record so you can compare it with your statement later. If a charge looks wrong, use your issuer's official support channel.
After the first few purchases, adjust your cash plan using what actually worked. Keep enough flexibility for the next journey, without turning your first afternoon into a search for an advertised exchange rate.
For arrival-route planning, see our Incheon Airport to Seoul transport guide.
Official information checked on 25 October 2026. This independent travel checklist does not quote live exchange rates or recommend a financial product. Confirm your own issuer's terms and the specific payment or exchange service before use.