Landing in Seoul is easy; working out how to pay for your first subway or bus ride can be less obvious. A T-money card in Seoul is the simplest starting point for most visitors. It is a reloadable transit card you tap on Seoul public transport.
This guide follows the order you will actually use it:
buy → top up → subway → bus → transfer → iPhone
It combines official guidance with photos taken at a Seoul station and convenience store in August 2026. Where a detail comes from one observed machine, rather than a city-wide rule, I say so.
Quick answer: For the least complicated start, buy a physical T-money card and add value before your first ride. Carry Korean won cash as a useful backup for physical-card top-ups, but do not assume every T-money top-up is cash-only. If you use an iPhone, Apple Wallet T-money is available on supported devices—but direct top-ups in Wallet require a Korea-issued debit or credit card. MobileTmoney has a separate route for certain overseas cards.
What is a T-money card in Seoul?
T-money is a prepaid transit card. You add money first, then tap the card on a reader. Visitors mainly use it for:
- Seoul subway and city buses
- Public transport in many other Korean cities
- Some taxis, convenience stores and other T-money merchants
For a Seoul trip, it saves you from buying a single-journey subway ticket each time. It can also keep an eligible journey inside the Seoul metropolitan integrated-fare system when you transfer correctly.
1. Where to buy a T-money card
Buy one at a convenience store
A convenience store is one of the easiest places to find a physical T-money card. Look near the counter or at a dedicated display. Card designs, prices and stock vary by shop.
If you do not see one, ask: “T-money card isseoyo?” (Do you have a T-money card?)
Buy one at a Seoul subway Ticket Kiosk
Convenience stores are not the only option. At one Seoul Metro Ticket Kiosk observed in August 2026, the English Purchase transportation card screen listed:
Tmoney Eco-friendly Transit card — ₩4,000- Climate Card products
- Some products marked
SOLD OUT
That confirms that this particular machine sold the card at that time. It does not mean every station, kiosk or date has the same card, price or stock.
2. The card price and your travel balance are separate
This catches many first-time visitors: the price of the plastic card is not the money you can ride with.
For example, a card listed at ₩4,000 does not mean it includes ₩4,000 of transit credit. After buying the card, add a separate balance for your rides.
Think of your starting cost as:
card purchase price + the balance you load for travel
3. Topping up a physical T-money card: do not assume cash-only
Keep physical and mobile T-money separate in your mind. Their payment options are not the same.
For a standard physical card, you can top up at convenience stores and station machines. Seoul’s public-transport guidance says station reload devices may accept cash, debit or credit cards, or mobile-bank transfers. The option actually available can still vary by machine, shop and card issuer.
Two blanket statements are both misleading:
- “Every T-money top-up is cash-only.”
- “Any foreign card can top up a physical T-money card.”
In particular, Seoul’s 2026 rollout of overseas-card payment at new ticket machines was announced for single-journey tickets and short-term Climate Cards. The announcement does not establish overseas-card top-ups for ordinary physical T-money cards.
So, Korean won cash remains a sensible backup for a physical card. Check the payment options on the exact machine or with the store before relying on an overseas card.
4. How to top up at a Seoul subway station
Find a Ticket Kiosk and switch to English
The Seoul Metro Ticket Kiosk photographed for this guide had a language option and equipment for cards, cash, coins and transit-card reloads. Machines vary, but choose English first when it is available.
On the English screen of one kiosk, the menu included:
Single Journey TicketReloading the transit cardPurchase transportation cardRefund / Ticket type change / Reuse
Choose Reloading the transit card for a card you already own, or Purchase transportation card to look for a new one. Treat those labels as an August 2026 observation from one kiosk—not a promise that every machine uses the same menu.
Put the card on the reload area
During the reload flow, the screen may ask you to place your transit card on the marked area. Follow the screen and the machine labels, and leave the card in place until the transaction finishes.
5. Using T-money on the Seoul subway
Once the card has a balance, tap it on the reader at the fare gate.
Entering the subway → tap Leaving at your destination → tap again
Use the same card or device for both taps. Follow the in-station signs when changing lines. For turn-by-turn directions after the gate, see How to Use NAVER Map in Korea.
6. On a bus, tap when you get on and when you get off
Most visitors remember the reader by the driver when boarding. The easy step to miss is the exit tap.
On Seoul metropolitan buses, tap when you board and tap again at the rear-door reader when you leave—especially if you plan to transfer to another bus or the subway. Seoul’s guidance says the exit tap is needed to receive the eligible transfer benefit.
The easiest rule to remember is:
Bus = tap in + tap out
7. How Seoul metropolitan transfers work
An eligible trip may combine buses and subways in Seoul’s integrated-fare system:
- bus → subway
- subway → bus
- bus → bus
According to Seoul’s guidance, board the next service within:
| Time of day | Time allowed after tapping out of the previous ride |
|---|---|
| Usual hours | 30 minutes |
| 21:00 to 07:00 the next day | 60 minutes |
The limit is up to four transfers, for five boardings in total. This is not always a free ride: distance and the service used can add a fare.
You also do not get the transfer benefit by boarding the same vehicle or the same route again. The exit tap matters—without it, the system cannot properly close the previous bus trip.
8. Can two people share one T-money card?
For the simplest subway and transfer experience, get one card per person.
One card can sometimes pay for more than one passenger on a bus, but special conditions apply, including matching boarding and alighting locations. Subway transfers do not apply in that situation. For visitors, one person = one transit card is far less error-prone.
9. Checking your balance
The remaining balance may appear when you tap at a subway gate or bus reader. You can also check it at a transit-card reload machine.
There is no need to load a large amount on day one. Start with a practical amount and add more if needed.
10. iPhone users: Apple Wallet T-money
Apple and Tmoney launched T-money for Apple Pay on July 21, 2025. On a supported iPhone or Apple Watch, you can add a prepaid T-money card to Apple Wallet and tap the transit reader without a physical card.
Apple’s published minimum requirements are:
- iPhone Xs, iPhone XR or later with iOS 17.2 or later
- Apple Watch Series 6 or later, or Apple Watch SE (2nd generation) or later, with watchOS 10.2 or later
With Express Mode, you can tap without unlocking your device or opening Wallet first. See Apple’s T-money announcement for the current device and setup details.
11. Can you top up Apple T-money with a foreign card?
This is the important distinction for overseas visitors.
Topping up directly in Apple Wallet
Apple says adding money directly to T-money in Apple Wallet, including Auto Reload, requires a credit or debit card issued in South Korea. Adding a foreign credit card to Wallet does not by itself make it eligible for this top-up route.
Apple’s Korea issuer list checked on August 26, 2026 names Hyundai Card. Issuer participation can change, so check Apple’s current issuer list before depending on it.
Topping up through the MobileTmoney app
MobileTmoney is a separate app-based route. Its iOS App Store release notes list overseas-issued cards from:
- Mastercard
- American Express
- UnionPay
- JCB
For an eligible iPhone user, the flow to investigate is:
Add T-money to Apple Wallet → top up in MobileTmoney → tap with iPhone or Apple Watch
The listed card brands do not guarantee approval: your issuing bank, country and card conditions can still decline a transaction. Visa is not listed in the relevant MobileTmoney App Store release notes. Check the MobileTmoney App Store listing before you travel.
12. Physical T-money or Apple T-money: which is better?
| Physical T-money | Apple Wallet T-money | |
|---|---|---|
| What you need | A physical card | A supported iPhone or Apple Watch |
| How you tap | Card | iPhone or Apple Watch |
| Top-up practicalities for visitors | Check each store or machine; cash is a useful backup | Check MobileTmoney’s supported overseas-card brands and your bank’s approval |
| Battery | Not relevant | Keep your device powered |
| Setup | Almost none | Initial setup required |
| Best for | Visitors who want the least setup | Supported-device users who want one device for transit |
If you want the most straightforward arrival-day option, choose a physical card. If you have a supported device and payment method, Apple Wallet T-money can be convenient.
13. T-money or the Climate Card?
You may see both products on a Seoul kiosk.
| T-money | Climate Card | |
|---|---|---|
| Basic model | Pay as you travel | Time-based pass |
| Travel scope | Useful across many Korean cities | Check the eligible Seoul-area routes and pass conditions |
| Best for | Flexible or multi-city itineraries | Visitors taking a lot of eligible Seoul public transport |
If you will make many eligible Seoul rides in a short period, compare the Climate Card. If your itinerary is flexible or includes travel beyond Seoul, T-money is usually the easier starting point. Check the current conditions before buying a short-term Climate Card.
First-time visitor checklist
- Buy a physical T-money card at a convenience store or an available Ticket Kiosk.
- Remember that the card price and the travel balance are separate.
- Check payment options at the exact shop or machine; keep Korean won cash as a backup for physical-card top-ups.
- Tap when entering and leaving the subway.
- Tap when boarding and leaving the bus.
- For a transfer, board again within 30 minutes—or 60 minutes from 21:00 to 07:00.
- If you use an iPhone, distinguish Apple Wallet’s Korea-issued-card requirement from the MobileTmoney overseas-card route.
FAQ
Can tourists buy a T-money card?
Yes. Convenience stores are an easy place to look. The August 2026 field observation in this guide also shows T-money on the purchase screen of one Seoul Metro Ticket Kiosk; availability and stock vary.
How much does a T-money card cost?
It depends on the card type and seller. At one Seoul Metro kiosk observed in August 2026, Tmoney Eco-friendly Transit card was listed at ₩4,000. The card price and loaded transit balance are separate.
Can I top up a physical T-money card with a credit card?
It depends on the T-money product and the place you top up. Seoul says station reload devices can accept cash, debit or credit cards, or mobile-bank transfers, but there is no official basis to say an overseas-issued card works for every standard physical T-money top-up. Check the machine or shop.
Do Seoul subway ticket machines have English?
One Seoul Metro Ticket Kiosk observed for this guide did. It showed Reloading the transit card and Purchase transportation card. Other machines may differ.
Do I need to tap out of the bus?
Yes—particularly if you will transfer. Tap again at the exit reader.
How long do I have to transfer?
Usually 30 minutes after tapping out. From 21:00 to 07:00 the next day, it is 60 minutes. The maximum is four transfers and five boardings total; taking the same route or vehicle again is excluded.
Can two people use one T-money card?
For subway and transfers, one card per person is the simplest choice. Multi-passenger bus payment has separate conditions and does not include subway transfers.
Can I top up T-money on an iPhone with a foreign card?
Not directly in Apple Wallet: Apple says that route needs a Korea-issued debit or credit card. MobileTmoney’s iOS release notes list Mastercard, American Express, UnionPay and JCB for overseas-issued-card top-ups, subject to issuer approval and conditions.
Official sources
Apple: T-money for Apple Pay · Apple Pay issuer list · MobileTmoney App Store listing · Seoul transfer rules · Seoul overseas-card ticket-machine announcement
For a broader travel setup, see our guide to the best Korea travel apps for first-time travelers.
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