Can You Travel in Seoul Without Cash? Where Won Still Counts — Korea How Now guide

Can You Travel in Seoul Without Cash? Where Won Still Counts

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Last checked: November 7, 2026 · Sources: Seoul Metropolitan Government, T-money, WOWPASS, AREX, Korea Tourism Organization, the Royal Palaces office and Korean law, linked below.

Mostly, yes. Shops, restaurants and taxis take cards, and since March 17, 2026 Seoul’s newer subway ticket machines on Lines 1–8 take overseas Visa and Mastercard. The gaps are narrow: topping up a plain T-money card at stations and convenience stores is cash only, 183 city bus routes take no cash, and street food stalls want won.

You can close most of those gaps without carrying won. A WOWPASS card topped up by your own credit card can feed its T-money balance through the app, and a Climate Card pass bought by card covers Seoul’s subway and buses. The harder moment is landing at Incheon with zero won.

Where do you still need won in Seoul?

Card or won in Seoul: shops, cafes and restaurants take cards; taxis with a card reader must take a card; subway single tickets and Climate Card passes take overseas cards at 440 new machines on Lines 1-8 with about a 3.7% fee; plain T-money top-ups at stations and stores are won cash only, or use WOWPASS and move its balance to T-money in the app; 183 city bus routes take no cash; street and market food stalls need won; Incheon Airport WOWPASS machines take won cash only, so pre-book the WOWPASS airport package, use an ATM or take a taxi by card
Drawn by us from Seoul Metropolitan Government, T-money, WOWPASS, Korean law and Korea Tourism Organization pages (checked November 7, 2026).
What you pay for Card? Cash-free way round
Topping up a plain T-money card No: T-money takes Korean won cash at stations and convenience stores WOWPASS app transfer, or a Climate Card pass
Subway single ticket Overseas card at the 440 new machines on Lines 1–8 Elsewhere, plan on cash
Tapping your own Visa or Mastercard at the gate No Use a transit card
City bus fare Transit card; 183 routes refuse cash Transit card
Taxi Yes, card or T-money
Shops, cafes, restaurants Yes, in most places WOWPASS if your card is declined
Street and market food stalls Often no Carry won
Palace tickets Card allowed by the ticket rules Check at the window
Subway lockers Card or transit card; some take cash

How do you top up T-money without cash?

T-money’s foreigner guide is plain about it: you hand over the card and Korean won in cash, in 1,000-won steps up to 90,000 won. Seoul’s FAQ says station kiosks charge by credit card only for single tickets, commuter passes and Climate Card short-term passes, and its March notice limits overseas cards to single tickets and the Climate Card. A plain T-money balance isn’t on either list.

The cash-free route goes through WOWPASS, which has a T-money balance built in:

  1. Top up the WOWPASS balance with a credit card at a WOWPASS machine, or in the app with an overseas card or wallet. WOWPASS says a small fee may apply in the app, depending on how you pay.
  2. Open the app and use its NFC feature to convert WOWPASS balance into T-money balance.
  3. Tap the card at subway gates and on buses as usual. Only the T-money balance pays fares.

Two catches. If you lose the card, WOWPASS can move the shop balance to a new card but says the T-money balance is gone, so convert small amounts. And WOWPASS’s machines at Incheon Airport take won cash only and can’t issue a card. Prices, membership and refunds are in our T-money vs WOWPASS vs Climate Card comparison.

Can a foreign card buy subway tickets?

Yes, at the right machine. From March 17, 2026, Seoul says 440 new ticket machines in 273 stations on Lines 1–8 accept overseas Visa and Mastercard credit and check cards. They sell single-journey tickets, the Climate Card itself and its 1-, 2-, 3-, 5- and 7-day passes. Expect an average 3.7% service fee.

Seoul city notice in Korean: (1) from March 17, 2026 overseas cards work at 440 new ticket machines in 273 stations on Lines 1-8, (2) for buying Climate Cards, charging short-term passes and single tickets, (3) average 3.7% service fee
Seoul Metropolitan Government notice (Korean), captured November 7, 2026. (1) 440 new machines, 273 stations, Lines 1-8 (2) What overseas cards can buy (3) Average 3.7% fee.

You still can’t tap your own contactless card at the gate. Seoul’s open-loop plan puts card readers on buses first (2025–2026 work) and swaps the Line 1–8 gate readers in 2027; as of November 7, 2026 we found no notice that either is live, so check again if you travel in 2027. Fares, the 500-won ticket deposit and gate fixes are in our Seoul subway fares guide.

The Climate Card pass has its own limits. Seoul says it doesn’t work in taxis, and at Incheon Airport it only covers getting off, not boarding.

Do Seoul buses take cash?

Some still do. Seoul’s fare page lists a cash fare: a regular blue or green city bus costs 1,500 won by card or by cash. Only a transit card gets the free transfer, because you have to tap off when you leave the bus.

Seoul also keeps a list of “cash-free buses” (현금 없는 버스). The January 2026 list has 183 routes. It includes the 01A and 01B loops from the Namsan Yejang transfer parking lot, 402 to Gwanghwamun, 405 to City Hall and 7022 to Seoul Station. Seoul doesn’t say what happens if you board one without a card, so don’t try.

Do taxis, shops and markets take cards?

Taxis. Seoul treats a driver who refuses a credit card, when the taxi has a card reader, as breaking the Taxi Development Act. The first offence costs the driver a 200,000-won fine and a warning. WOWPASS lists taxis as places its T-money balance works. Apps that charge your overseas card are compared in our taxi app guide.

Shops and restaurants. Korean law says a shop signed up to take credit cards may not refuse a card payment or pass its card fee to you, but that doesn’t mean every terminal can read a foreign card. The Korea Tourism Organization says most businesses take Visa, Mastercard and American Express, though some stores may not. If a terminal rejects your foreign card, WOWPASS works at any shop that takes Korean cards.

Street food and market stalls. Here you need won. WOWPASS, whose whole business is card payments, lists “cash-only places like street stalls or underground markets” among the places its card can’t pay.

Palaces. Gyeongbokgung costs 3,000 won for foreign adults aged 19 to 64. Foreigners 18 and under or 65 and over enter free, as does anyone wearing hanbok that meets the palace’s hanbok guideline. The palace ticket rules allow sales by credit card and unmanned machines alongside the ticket office. Whether a given window takes an overseas card is not officially confirmed, so check before you go.

Subway lockers. The Korea Tourism Organization says you pay by bank card or transit card, and some lockers also take cash. A small T-Locker costs 2,200 won for 4 hours on weekdays. The newer lockers run through the Korean-only T-Locker app.

How much won should you carry for 3 days?

Our estimate for one adult landing at Incheon Terminal 1, staying near Seoul Station, and taking 4 separate subway or bus rides a day for 3 days. We used Seoul’s 1,550-won base fare for every ride, which overstates a little because subway-bus transfers within 30 minutes cost less.

Set-up Won cash you need for transport What goes on your card
Plain T-money About 27,000: the card (around 3,000 won) plus 24,000 in top-ups (4,750 airport ride + 18,600 for 12 rides, rounded up to 1,000-won steps) Nothing
WOWPASS airport package 0: the package’s 10,000 won of T-money covers the 4,750-won airport ride; convert the rest in the app Package price, membership and app fees, shown in the app
Climate Card 3-day pass 5,350 for a single AREX ticket from the airport (4,850 fare + 500 deposit back at Seoul Station) About 13,480 won: 10,000 pass + 3,000 card + about 3.7%

Plain T-money needs the most cash by far. We count the card itself (around 3,000 won; the price varies by design and store) as cash because T-money’s pages don’t say a convenience store will sell it for a foreign card. For the Climate Card row, AREX doesn’t say whether its Incheon machines take overseas cards, and the 440 machines in Seoul’s notice are all on Lines 1–8.

Our take: even if you go the WOWPASS route, keep one or two 10,000-won notes for market stalls. Seoul doesn’t publish street-food prices, so the amount is your call; the point is to have some won when a stall has no card reader.

What if you land at Incheon with no won?

Three options, none of them a WOWPASS machine, since the ones at Incheon take won cash only.

  1. Pre-book the WOWPASS airport package and collect it at the SKT counter. WOWPASS says its 10,000 won of T-money is ready for transport at pickup and suggests using it for the AREX All-stop train. A card ordered for CU pickup can be collected at the CU stores in Terminal 1 or 2; you then fund its T-money balance in the app.
  2. Take out won at a Global ATM at the airport. Which machines take foreign cards and what they charge is in our Korea ATM guide.
  3. Take a taxi and pay by card. The AREX All-stop costs 4,750 won from Terminal 1 (5,350 from Terminal 2) to Seoul Station by card, so the taxi is the expensive fix.

Sources

Sources (18)