Everyone needs T-money or something containing it; the question is which wrapper. T-money (₩2,500-4,000 at any convenience store, load cash, tap everything) is the universal answer. The Climate Card tourist versions (1 to 7 days, ₩5,000-20,000 plus a ₩3,000 card) make Seoul unlimited and pay off at three-plus rides a day, but exclude the AREX Express and some lines. WOWPASS is the clever one for card-frustrated foreigners: a prepaid debit card that swallows your dollars at good rates and has T-money built in. One important negative: your foreign contactless card still can’t tap subway gates — that arrives in 2027.
Korea’s transit-card scene grew three products that answer different problems, and travelers routinely buy the wrong one. Map your trip onto the table, then read why.
| Card | Cost | What it solves | Skip if |
|---|---|---|---|
| T-money | ₩2,500-4,000 + load | Tap-to-ride everywhere, transfers, convenience-store payments | Never skip; something you carry should contain it |
| Climate Card (tourist) | ₩5,000 (1d) to ₩20,000 (7d) + ₩3,000 card | Unlimited Seoul subway + city buses | Light riders; trips based outside Seoul |
| WOWPASS | ₩5,000 issue + load | A Korean debit card for foreigners + T-money in one | You carry cash happily and your cards work fine |
T-money: the baseline
Sold at every convenience store and station, loaded with cash, tapped on subways, buses and taxis nationwide, and accepted as payment at convenience stores and plenty of small merchants. It saves ₩100 per ride versus single tickets and, more importantly, activates Korea’s free/discounted transfer system between bus and subway (Seoul’s base subway fare is ₩1,550 with a card since the June 2025 hike). Refunds of leftover balance under ₩20,000 happen at any convenience store for a ₩500 fee.
Climate Card: the Seoul-intensive pass
Seoul’s unlimited pass comes in tourist durations: ₩5,000 / ₩8,000 / ₩10,000 / ₩15,000 / ₩20,000 for 1/2/3/5/7 days, plus ₩3,000 for the physical card, sold at station information centers and convenience stores, reloadable with foreign cards. Break-even sits around three rides a day (7 days of unlimited for ₩20,000 against ₩1,550 fares), which heavy sightseeing hits easily.
The exclusions are the catch: no AREX Express, no Shinbundang Line, no buses outside Seoul city, and it stops working the moment a subway ride exits the Seoul zone (Suwon day trips, for example, need a T-money backup for the overage). The pattern that works: Climate Card for the Seoul days, a few thousand won on T-money for everything it doesn’t cover.
WOWPASS: the foreign-card workaround
WOWPASS exists because foreign credit cards still fail at Korean kiosks, some small restaurants and in-app payments. It’s a prepaid card issued by machine (160+ locations: the airports, major subway stations, hotels; ₩5,000 first issue) that converts 16 currencies at near-market rates, then works like a local debit card wherever cards are taken, with T-money built into the same plastic. Load dollars, pay like a local, tap the subway. The fine print: the airport machines don’t do cash withdrawal or reissue, a lost card’s T-money balance is gone, and the transit side still needs separate cash top-ups (the card’s two balances don’t mix).
For a one-week Seoul-based trip, the clean setup is WOWPASS as wallet plus a 7-day Climate Card for rides, or just WOWPASS alone if you ride less than three times a day. And the 2027 note: Seoul is wiring its gates for foreign contactless tap-to-ride (buses first, then subway lines 1-8), so this whole page simplifies eventually — but as of this check, your Visa still can’t open a subway gate, whatever it does at home.
FAQ
Can I use my foreign credit card on the Seoul subway?
Not at the gates yet; open-loop tap arrives on buses and then subway lines in 2027. For now foreign cards buy tickets and passes at station kiosks, but riding needs T-money, a Climate Card or WOWPASS’s built-in T-money.
Is the Climate Card worth it for tourists?
At three or more subway/bus rides a day in Seoul, yes: the 7-day version costs ₩20,000 against ₩1,550 per ride. Remember it excludes the AREX Express and anything outside Seoul city.
What is WOWPASS and should I get one?
A foreigner-focused prepaid card issued by machines at airports and stations: load foreign currency at good rates, spend like a local debit card, tap transit via built-in T-money. Get one if kiosks and small shops rejecting your foreign card would annoy you; that failure mode is still common.
Where do I buy a T-money card?
Any convenience store (CU, GS25, 7-Eleven, emart24) or subway station machine, ₩2,500-4,000 for the card, then load cash. Airport convenience stores sell them on arrival, which is the right moment.
Keep planning
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- MoneyMoney in Korea: Cards Almost Everywhere, Cash for the Gaps
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- Getting AroundIncheon Airport to Seoul: AREX, Buses and the Late-Night Problem
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- Trip PlanningKorea in 7 Days: Seoul and Busan, and Why You Should Skip Jeju This Time
A first-timer's week in Korea — four days in Seoul, the KTX south, two-plus days in Busan, and the reasoning for leaving Jeju to a second trip. Checked October 2026.
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