T-Money Card Korea: How to Buy, Charge, and Use It (2026 Guide)
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T-Money Is Not Optional for Most Foreign Visitors — Here Is Why
The T-Money card is Korea's standard transit card — a reloadable contactless card used to pay for the subway, buses, and some taxis across Seoul and most major Korean cities.
As of 2026, foreign-issued credit cards (Visa, Mastercard) cannot be tapped directly at Seoul subway gates or bus readers. Korea's transit system currently runs on a closed-loop payment network that only accepts T-Money cards, domestic Korean credit cards with transit functions, or mobile T-Money via Apple Pay or Samsung Pay.
Full open-loop integration — where foreign cards tap directly at the gate — is planned by Seoul Metropolitan Government, with subway terminal upgrades expected to complete by 2027 and full system expansion by 2030. In 2026, that system is not yet operational at the gate level.
There are two practical options for foreign visitors:
Option 1 — Physical T-Money card: buy at the airport or any convenience store, charge with cash, tap at every gate and bus reader. Simple, reliable, works everywhere in Korea.
Option 2 — Mobile T-Money via Apple Pay or Samsung Pay: download the MobileTmoney (모바일티머니) app, charge using Mastercard, Amex, or UnionPay (Visa not supported), add to Apple Wallet or Samsung Pay, and tap your phone. Available since early 2026 and works on subway and buses. Requires a smartphone with NFC and Apple Pay or Samsung Pay configured.
This guide covers both options — how to buy and use a physical T-Money card, and how to set up mobile T-Money if you prefer not to carry a separate card.
Where to Buy a T-Money Card
At Incheon Airport
The most convenient place to buy a T-Money card on arrival. Look for GS25 or CU convenience stores in the arrival hall — both sell T-Money cards at the counter. The card costs approximately ₩4,000 (around $3) — a one-time fee. You can load an initial amount at the same counter.
T-Money cards are also available at the AREX (airport express) ticket machines in the arrivals area, though the convenience store counters are often faster.
At convenience stores across Korea
GS25, CU, 7-Eleven, and Emart24 convenience stores all sell T-Money cards at the counter. If you did not pick one up at the airport, any convenience store near your hotel will have them. Simply ask for a "T-Money card" — the name is universally recognized.
At subway station vending machines
Seoul subway stations have ticket vending machines that sell and reload T-Money cards. The machines have an English interface. Select "T-Money card" from the menu, insert cash, and the machine dispenses a card with the loaded balance.
How to Charge (Top Up) a T-Money Card
The most reliable charging method is at a convenience store counter with cash. Hand the card to the cashier and say the amount you want to add — ₩10,000 or ₩20,000 is a common starting amount. Pay in Korean won cash — this works at every convenience store without exception. Some chains (GS25, CU) also accept credit cards for T-Money top-ups, but availability varies by terminal and location. If in doubt, use cash — it always works.
Subway station vending machines also reload T-Money cards. Select "Reload T-Money" from the English menu, insert the card, and add the amount in cash.
How much to load: for a one-week trip using the subway daily, ₩30,000 to ₩50,000 covers most visitors comfortably. The base subway fare is ₩1,550 per journey with T-Money (up to 10km), with additional distance charges beyond that. Most rides within central Seoul fall between ₩1,550 and ₩2,150. Bus fares are similar.
Check your balance: the subway turnstile display shows your remaining balance every time you tap in. You can also check at convenience store counters by handing over the card.
How to Use T-Money on the Subway and Bus
Subway
Tap the card on the yellow reader at the turnstile gate when entering. The gate opens and the display shows your remaining balance and the fare deducted. Tap again when exiting — the system calculates the exact fare based on distance traveled and deducts the difference.
Bus
Tap when boarding (on the reader near the front door). Tap again when exiting (on the reader near the back door). The transfer discount applies if you tap the same card within 30 minutes of a subway exit or a previous bus exit.
Tapping on buses is important: failing to tap when exiting means no transfer discount for the next leg of the journey.
Taxis
Most standard taxis in Seoul accept T-Money. Look for the T-Money logo on the taxi window. Tap the card on the reader near the driver at the end of the ride. Not all taxis accept T-Money — if the driver indicates cash only, pay the metered amount in cash.
The Transfer Discount — Why T-Money Saves Money
The transfer discount is the main financial reason to use T-Money over paying with a single-use ticket.
The Seoul Metropolitan Area uses a distance-based integrated fare system. When you tap the same T-Money card across subway and bus within 30 minutes (60 minutes between 9 PM and 7 AM), you pay only one base fare for the entire connected journey — not a separate base fare for each vehicle.
In practice, this means: taking the subway to a bus stop and boarding a bus within 30 minutes costs the base fare of ₩1,550 for the whole journey (plus any distance surcharge if total travel exceeds 10km). Without the transfer discount, you would pay ₩1,550 twice — once for the subway and once for the bus.
The discount allows up to 4 transfers (5 vehicles total) within a single journey. The 5th vehicle triggers a new base fare.
For a visitor who uses subway-to-bus connections regularly, the savings per connected journey equal the bus base fare — approximately ₩1,500 per journey where a transfer would otherwise apply. Over a week of daily use, this adds up meaningfully on an already inexpensive transit system.
Option 2: Mobile T-Money (No Physical Card Needed)
Since July 2025, foreign visitors can use T-Money without a physical card by setting it up on their phone.
Download the MobileTmoney (모바일티머니) app from the App Store or Google Play. On the main screen, tap the "Foreigner" button — this bypasses Korean ID verification. Charge using Apple Pay with a supported card: Mastercard, American Express, or UnionPay are accepted. Visa cards are not currently supported for in-app top-ups. Add the T-Money card to Apple Wallet (iPhone) or Samsung Pay (Android) and tap your phone at subway gates and bus readers.
iPhone shortcut (since March 2026): You can also add T-Money directly from the Apple Wallet app — tap the + button, select Transportation Card, and choose T-Money — without downloading MobileTmoney first. However, topping up directly within Apple Wallet requires a Korean-issued card. For foreign card top-ups, the MobileTmoney app route is still necessary.
Note: in-app top-ups with foreign cards carry a service fee of approximately 3.7%. Loading ₩50,000 through the app costs approximately ₩51,850.
Visa cardholders who want a cashless option: the new subway kiosks at major Seoul stations now accept foreign Visa cards to purchase the Climate Card (unlimited transit pass) — an alternative worth considering if you do not have Mastercard or Amex.
Note: Apple Wallet T-Money support for foreign iPhones became available in early 2026. iPhone XS or later with iOS 17.2 or later is required.
This option works well for visitors who prefer not to carry a separate card and already have Apple Pay or Samsung Pay configured. The transfer discount applies to mobile T-Money the same way it does to the physical card.
Physical T-Money Card vs Mobile T-Money — Which to Choose
| Feature | Physical T-Money card | Mobile T-Money (Apple/Samsung Pay) |
|---|---|---|
| Works at subway gates | ✅ Yes — all gates | ✅ Yes — all gates |
| Works on buses | ✅ Yes — all buses | ✅ Yes — all buses |
| Transfer discount | ✅ Applies automatically | ✅ Applies automatically |
| Charge with foreign card | 🟡 Charge at convenience store with cash (most reliable) — some chains accept credit cards | ✅ Mastercard, Amex, UnionPay via MobileTmoney app — Visa not supported |
| Requires smartphone | ✅ No — card only | 🔴 Yes — iPhone or Android with NFC |
| Works when phone battery dies | ✅ Yes | 🔴 No |
| Works outside Seoul | ✅ Yes — across Korea | ✅ Yes — across Korea |
| Refund remaining balance | ✅ At convenience store (minus ₩500 fee) | ✅ Via app |
| Best for | All visitors — most reliable fallback | Visitors with Apple Pay or Samsung Pay already set up |
Refunding Leftover Balance
If you have remaining balance on your T-Money card at the end of the trip, you can refund it at a convenience store counter. Hand over the card and ask for a refund — a ₩500 processing fee is deducted from whatever remains.
Alternatively, keep the card for a return trip. T-Money cards do not expire and work every time you visit Korea. Keeping it saves the ₩4,000 card purchase fee on the next visit.
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→ Kakao T in Korea: How to Set It Up and Book a Taxi as a Foreign Visitor
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