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Transport & DrivingSeoul's metropolitan subway network spans over 23 lines and hundreds of stations, connecting seamlessly with city buses, express trains, and taxis. While the transit system is world-class, foreign credit cards rarely work directly at turnstiles. To navigate Seoul, Busan, and Jeju without frustration, having a rechargeable transit IC card is an absolute necessity. Here is everything you need to choose, buy, reload, and use South Korea's transit cards.
Published October 16, 2026
T-Money Card (Best for Most Travelers): The universal nationwide transit card. Costs 3,000–5,000 KRW to buy, works across Seoul, Busan, Jeju, and every regional city bus, subway, taxi, and convenience store. Does not expire.
Seoul Climate Card (Best for Heavy Seoul Transit Use): An unlimited-ride tourist transit pass for Seoul (costs 5,000 KRW for 1 day, 8,000 KRW for 2 days, 15,000 KRW for 5 days). Offers unlimited subway and bus rides strictly within the Seoul municipal boundary, but does not cover the AREX Airport Railroad outside Seoul or transit in Busan/Gyeonggi.
Namane Card (Best for Digital Customization): A custom photo card that doubles as a prepaid debit card for shopping and an offline T-Money card for transit, reloadable via international credit cards in the Namane mobile app.
You can purchase a physical T-Money card within minutes of landing at Incheon International Airport (ICN) or Gimpo Airport (GMP):
Convenience Stores (GS25, CU, 7-Eleven, Emart24): Walk up to the cash register and ask for a 'T-Money card' (T-money kadeu). You will pay approximately 3,000 to 5,000 KRW for the blank card (special character designs like LINE Friends or K-Pop editions cost 5,000–8,000 KRW).
Subway Station Vending Machines: Automated card dispensing kiosks are located at all major subway stations, featuring full English touchscreen interfaces.
The single most important tip for South Korea transit is that standard T-Money card top-up machines only accept South Korean Won (KRW) cash bills.
Foreign credit cards, Apple Pay, and debit cards cannot be used to reload physical T-Money cards at subway kiosks or convenience stores. Always withdraw Korean Won from a global ATM (found at airport terminals, major banks like Shinhan and Hana, and inside convenience stores) before attempting to load your transit balance.
Place your card on the designated reader pad at any subway station Ticket Vending and Card Reload device, select your top-up amount (10,000 to 30,000 KRW is a great starting amount for 3 to 4 days), insert cash bills, and wait 5 seconds for the balance to write to your chip.
South Korea operates an integrated distance-based transit fare system with steep transfer discounts:
Always Tag In and Tag Out: Tap your card against the sensor when boarding a bus or entering a subway turnstile, and always tap again when exiting. If you forget to tap out when getting off a bus, the system penalizes your card by charging the maximum distance fare on your next journey.
Free Transfer Window: When switching between subway lines or hopping from a subway to a public bus, you receive a free or heavily discounted transfer if completed within 30 minutes (60 minutes between 9:00 PM and 7:00 AM). Up to 4 transfers are permitted per journey.
Etiquette Rules: Avoid loud phone conversations on train cars, and never sit in the designated priority seating areas at the ends of cars (reserved strictly for elderly, pregnant, and disabled passengers), even on completely empty trains.
For cultural planning before your trip, review What Is the Dress Code at Temples and Shrines in Japan and South Korea? and verify electronic arrival rules in Do I Need a Visa to Visit South Korea?.
No. Standard physical T-Money cards can only be reloaded with Korean Won (KRW) cash at subway station kiosks and convenience store registers. Foreign credit cards are not accepted for top-ups.
Yes. T-Money is a nationwide interoperable transit card. A card bought in Seoul works seamlessly on Busan subways and city buses, as well as Jeju island buses and taxis.
On public buses, a single card can pay for multiple people if you notify the driver before tapping so they can manually set the passenger count. However, in the subway, each person must have their own individual card to pass through the turnstiles.
Yes. Leftover balances under 20,000 KRW can be refunded in cash immediately at any convenience store (GS25, CU, 7-Eleven) for a nominal 500 KRW processing fee. The initial card purchase fee (3,000–5,000 KRW) is non-refundable.
If you take 4 or more subway and bus rides per day entirely within central Seoul, the Climate Card (starting at 5,000 KRW/day) saves money. If you are traveling outside Seoul (Incheon Airport, Nami Island, Suwon, or Busan), standard T-Money is better because Climate Card does not cover transit outside Seoul city limits.
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