Your Guide to Seoul Subway Payments: T-Money, WOWPASS, and More

Seoul’s subway system is one of the most efficient in the world, but foreign visitors still get tripped up at the gate on day one. In 2026, the landscape has shifted just enough — new fares, updated apps, expanded WOWPASS kiosk networks — that advice from even two years ago can lead you to tap a dead card or pay more than you should. This guide cuts through the confusion and tells you exactly what to use, where to get it, and what it will cost.

T-Money Card: The Foundation of Seoul Transit Payments

The T-Money card is a prepaid, rechargeable smart card that works on virtually every subway line, city bus, and even some taxis across South Korea. It has been the default payment method for local commuters for years, and for good reason — it works everywhere and it saves you money every time you transfer.

When you tap in at a subway gate, you hear a clean beep and the screen flashes your remaining balance. Tap again when you exit. That second tap is what triggers the transfer discount: if you board a bus within 30 minutes (or within one hour between 21:00 and 07:00), the system counts it as one continuous journey rather than two separate fares. Without a T-Money card, that discount disappears entirely.

Where to Buy One

Pick one up at any GS25, CU, 7-Eleven, E-Mart24, or Ministop convenience store — look for the T-Money logo near the register. You can also find them at ticket vending machines inside subway stations. The card itself costs KRW 3,000–5,000 (USD 2.20–3.70). That initial cost is non-refundable, so treat the card as a purchase, not a deposit.

How to Load It

The most straightforward method is a subway station vending machine. Select English, choose “Reloading the Transit Card,” place your card on the pad, pick an amount, and feed in Korean won. Most machines do not accept foreign credit or debit cards for this — bring KRW cash. You can also hand your card to any convenience store cashier and say “T-Money chungjeon hae juseyo” (티머니 충전해주세요). The minimum increment is KRW 1,000, the maximum per single transaction is KRW 90,000 (USD 66), and the card holds up to KRW 500,000 (USD 370).

Mobile T-Money and the iOS Limitation

Android users with NFC-capable phones can install the Mobile T-Money app and use their phone as a card directly at the gate. iOS users cannot — Apple’s NFC restrictions block third-party transit payment apps in Korea as of 2026. However, iPhone users can use the Korea Tour Card app to check their physical card balance and recharge it using a foreign credit or debit card. The top-up then transfers to the physical card via NFC the next time you tap it. It is a workaround, not a full solution, but it at least removes the cash dependency for loading.

Getting a Refund

If you have leftover balance at the end of your trip, convenience stores will refund amounts up to KRW 20,000 (USD 14.80), minus a KRW 500 service fee. Subway station service centers handle any amount, also for a KRW 500 fee. The card itself is not refunded.

WOWPASS: The All-in-One Card Built for Foreign Visitors

WOWPASS is a prepaid debit card engineered specifically for tourists. It combines a currency exchange function, a Visa/MasterCard debit function for shopping, and a built-in T-Money chip for public transport — all on one card.

Getting the Card

WOWPASS kiosks are positioned at high-traffic arrival points: Incheon Airport, Gimpo Airport, Seoul Station, Myeongdong Station, and Hongik University Station, among others. The network has expanded noticeably since 2024. The card costs KRW 5,000 (USD 3.70). You will need your passport for identity verification at the kiosk.

Loading It

At the kiosk, select your language (English, Chinese, and Japanese are available), insert your passport, and choose how to load funds. You can feed in foreign currency cash — USD, EUR, JPY, GBP, AUD, CAD, CNY, THB, SGD, HKD, MYR, PHP, VND, and TWD are accepted — and the kiosk converts it to KRW at a competitive real-time rate. You can also insert a foreign Visa, MasterCard, JCB, or UnionPay card. The maximum balance on the debit function is KRW 1,000,000 (USD 740).

The T-Money Chip Is Separate

This is the part that confuses most first-time WOWPASS users. The T-Money chip on the card is not automatically funded from your WOWPASS balance. You need to load it separately — either by visiting a WOWPASS kiosk and transferring funds from your KRW balance to the T-Money chip, or by recharging it with cash at a convenience store or subway vending machine exactly as you would with a standard T-Money card. Once loaded, it works identically at every subway gate and bus reader.

Withdrawals and Refunds

You can withdraw remaining KRW cash at any WOWPASS kiosk. A withdrawal fee of approximately KRW 1,000 (USD 0.74) applies per transaction. Leftover T-Money balance on the card is refunded through the same channels as a regular T-Money card — convenience stores or subway service centers — with a potential KRW 500 fee. The WOWPASS app (available on iOS and Android) lets you monitor both balances and find nearby kiosks.

Single-Use Tickets and Why Most Visitors Outgrow Them Fast

Single-use paper tickets are available at every subway vending machine. The machine charges you the base fare plus a refundable deposit of KRW 500 (USD 0.37). After you exit through the gate, you feed the ticket into a “Deposit Refund Device” — a small machine near the exit — to recover that KRW 500.

The process is manageable for a single ride. The problem is volume. If you take four or five subway trips a day across Seoul, you are buying, handling, and refunding tickets constantly. More importantly, single-use tickets do not receive transfer discounts. Each tap is a full fare. Over a week of sightseeing, that adds up to a meaningful gap compared to what a T-Money user pays for the same journeys.

Single-use tickets make the most sense if you arrive at the airport with no Korean won, cannot immediately locate a convenience store, and need exactly one ride to your accommodation before sorting out a proper card.

Mobile Payments on Seoul Subway: What Actually Works in 2026

The short answer for foreign tourists: mobile payments do not work at Seoul subway gates with international cards, regardless of which wallet you use.

Apple Pay launched in Korea in 2023, primarily through Hyundai Card. For transit, it requires a Korean-issued card. Your international Visa or Mastercard in Apple Wallet will not tap through a subway gate. No change to this situation is expected through 2026.

Samsung Pay has broad retail acceptance in Korea, partly because its MST technology works with older card readers. But linking Samsung Pay to the T-Money function for transit requires a Korean bank account and a Korean-issued card. Foreign tourists are excluded.

Google Pay has the narrowest acceptance of the three in Korea and faces the same transit limitations.

Where mobile wallets do sometimes work for tourists is general retail — cafes, convenience stores, larger shops — where NFC terminals are common. But for the subway specifically, stick with a physical T-Money card or WOWPASS.

ATMs, Cash, and Currency Exchange Near Subway Stations

Cash remains relevant in Seoul even in 2026, primarily for topping up T-Money and at smaller traditional market vendors. The good news is that ATMs are genuinely easy to find.

Look for machines inside GS25, CU, and 7-Eleven stores — these are inside most subway station concourses. Major bank branches (KB Kookmin, Shinhan, Woori, Hana, NH Nonghyup) are also clustered near busy stations. Look for “Global ATM” signs, or the Plus, Cirrus, Visa, MasterCard, and UnionPay logos on the machine.

Fees stack from two sides. Your home bank will typically charge USD 3–5 per foreign withdrawal. The Korean ATM adds another KRW 3,000–5,000 (USD 2.20–3.70). Expect a combined hit of USD 5–9 per withdrawal, which means fewer, larger withdrawals are more efficient than topping up KRW 10,000 at a time.

Most machines cap withdrawals at KRW 700,000–1,000,000 per transaction. When the screen asks whether you want to be charged in your home currency or KRW, always choose KRW. Choosing your home currency (Dynamic Currency Conversion) hands the exchange rate over to the ATM operator, and it is almost always worse than your bank’s rate.

For currency exchange, Myeongdong’s private exchange booths consistently offer the best rates in the city. Bank branches (open weekdays 09:00–16:00) are second. Airport counters at Incheon and Gimpo are the most convenient but least competitive.

2026 Budget Reality: What Seoul Subway Actually Costs

The base subway fare in Seoul is projected at KRW 1,550 (USD 1.15) for 2026, reflecting an increase from the KRW 1,400 fare introduced in October 2023. This is the flat fare for most journeys within central Seoul on Lines 1–9 and the Airport Railroad (AREX local service).

• T-Money card purchase: KRW 3,000–5,000 (USD 2.20–3.70) — one-time, non-refundable
• WOWPASS card purchase: KRW 5,000 (USD 3.70) — one-time
• Single subway ride (T-Money): KRW 1,550 (USD 1.15)
• Single subway ride (single-use ticket): KRW 2,050 (USD 1.52) — base fare KRW 1,550 + KRW 500 deposit, deposit refunded at exit
• ATM withdrawal fees (combined): approximately USD 5–9 per transaction
• WOWPASS kiosk withdrawal fee: KRW 1,000 (USD 0.74)
• T-Money refund fee: KRW 500 (USD 0.37)

Budget traveller: Buy a T-Money card with KRW cash, reload at convenience stores, and use transfer discounts to keep daily transport at KRW 4,650–6,200 (USD 3.45–4.60) for three to four trips.
Mid-range: Use WOWPASS loaded with a foreign card at the kiosk — covers both transport and daily spending without repeated ATM trips.
Comfortable: WOWPASS for spending, occasional ATM withdrawal for cash-only situations, Myeongdong exchange booth for any remaining foreign currency.

Common Mistakes to Avoid at the Subway Gates

Not tapping out. On Seoul’s subway, you tap in and tap out. Skipping the exit tap means the system cannot calculate your fare correctly and may charge you the maximum distance fare — or block the card until the balance is corrected.

Assuming the WOWPASS T-Money chip is pre-loaded. It is not. Many visitors get to the gate with a fully loaded WOWPASS card and find the T-Money chip reads zero. Load the chip separately before your first ride.

Trying to use an iOS phone as a transit card. NFC transit payment via iPhone does not work on Korean public transport with foreign accounts. Bring the physical card.

Accepting DCC at ATMs or stores. When a screen offers to show you the amount in USD, GBP, or your home currency — decline. Pay in KRW every time.

Running the card to zero right before your last ride. Check your balance before long outings. The smell of a crowded subway platform at rush hour and the red flash of a zero-balance gate are not a combination you want to deal with. Subway vending machines show your balance when you tap for a recharge — even if you add nothing, the current balance displays.

Trying to refund a T-Money card with more than KRW 20,000 at a convenience store. Anything above that threshold requires a subway station service center. Plan this into your last day if you have a significant balance remaining.

Frequently Asked Questions

Can I use my foreign credit or debit card directly at Seoul subway gates?

No. Seoul subway gates accept T-Money cards (including the T-Money chip on WOWPASS) and single-use paper tickets only. Foreign Visa, Mastercard, and other international cards cannot be tapped at subway turnstiles. You need a T-Money card or WOWPASS loaded with the T-Money function before entering any station.

What is the difference between T-Money and WOWPASS for subway use?

Both use the same T-Money chip technology at the gate, so subway performance is identical. The difference is how you load them. T-Money requires KRW cash at most recharge points. WOWPASS lets you load foreign currency or a foreign card at a kiosk, making it more convenient if you want to avoid frequent cash exchanges during your trip.

How much should I load onto my T-Money card for a week in Seoul?

For a typical tourist taking four to six subway or bus rides per day, budget roughly KRW 10,000–15,000 (USD 7.40–11.10) per day in transport. For a seven-day trip, KRW 70,000–100,000 (USD 52–74) covers most itineraries comfortably, factoring in transfer discounts. Load in increments so you are not left with a large unspent balance at the end.

Can I use Apple Pay or Samsung Pay on the Seoul subway in 2026?

Not with a foreign-issued card. Both Apple Pay and Samsung Pay link to the T-Money transit function only through Korean-issued cards from participating banks. As of 2026, there is no mechanism for foreign tourists to pay subway fares through either wallet using an international card. A physical T-Money card or WOWPASS is required.

Where can I find a WOWPASS kiosk if I miss the ones at the airport?

WOWPASS kiosks are located at Seoul Station, Myeongdong Station, and Hongik University Station, among other major hubs. The WOWPASS app (available free on iOS and Android) has a live kiosk locator. The network expanded significantly after 2024, so kiosks are now within reach of most central Seoul neighbourhoods.

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📷 Featured image by Cecelia Chang on Unsplash.