Bringing Over $10,000 Cash Into or Out of Korea? Declare It or Risk a 100 Million Won Fine (2026)

Bottom line: If you are carrying more than US$10,000 in cash (combined, across currencies and checks) through Incheon Airport, you must declare it at the customs currency-declaration counter before the security checkpoint on departure, or at customs on arrival. Declaring costs nothing and is not taxed — the only problem is not declaring.

If you didn't know: Getting caught with more than US$30,000 in undeclared cash can mean up to one year in prison or a fine of up to 100 million won under Article 29(1)(4) of the Foreign Exchange Transactions Act, and the cash itself can be confiscated under Article 30. Between US$10,000 and US$30,000, an administrative fine applies, but we could not confirm the exact percentage from an official source — either way, declare anything over US$10,000 before you move on.

This applies to foreign travelers exactly the same way it applies to Korean residents. Exchanging money at an airport counter or winning cash at a casino does not cancel the declaration requirement. At departure, look for the currency-declaration counter sign before the security screening line. At arrival, either submit the paper form at the customs inspection counter or fill it out in advance through the 'Customs Declaration for Travelers' app and show the QR code. If the money is legitimately yours, you can carry it through after declaring — the trouble only starts if you skip the declaration.

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

Journey stage: During the trip · Verified 2026-11-09