The short answer

Visitors: use a fee-free UK card wherever cards are taken — hotels, malls, restaurants, Grab, the MRT — and carry cash from occasional larger ATM withdrawals for stalls, markets and taxis. Add a tourist QR option such as the TAGTHAi Easy Pay card if you want to scan QR codes. Residents: a Thai bank account with PromptPay does almost everything for free; keep a UK card for bookings and a little cash for the rest. Always pay in baht, never pounds.

Every payment method at a glance

Who can use each method, where it works, and the typical cost to a British visitor or expat.

Consistent with our guides to Thai QR payments (checked 12 October 2026) and paying for tours and domestic transport. The BTS Skytrain doesn't accept contactless bank cards. Tourist wallet rules change quickly — check each app.

The best way to pay in 16 everyday situations

What to reach for, wherever you are.

General guidance. Acceptance varies by place — carry a backup method, and always pay in baht if a card machine offers pounds.

Three tools that cover almost everything

With these three — or two of them plus some cash — you can pay for almost anything in Thailand.

The costs and charges to know

The charges that decide which method is cheapest.

Our ATM, card and QR guides (October 2026). At ฿44.38 = £1.

Visitor or resident: two payment kits

Our guides to fee-free cards for spending in Thailand and opening a Thai bank account explain each part of the kit.

PromptPay and Thai QR in a nutshell

PromptPay is Thailand's national instant payment system. Shops display a Thai QR code; customers scan it in a Thai bank app or e-wallet, check the name and amount, and confirm — the money moves instantly, usually free for both sides. UK banking apps can't scan Thai QR codes, and the UK isn't among the countries with cross-border QR links to Thailand, so visitors need a tourist option such as the TAGTHAi Easy Pay card or a verified TrueMoney Wallet. Residents with a Thai bank account — or a Thai-registered Wise account — can pay directly.

For the details of each tourist option, see our guide to Thai QR payments for foreign visitors.

Paying for transport

• BTS Skytrain: cash, QR at the machines, single-journey tickets or a rechargeable Rabbit card — no contactless bank cards yet.
• MRT, Yellow and Pink lines, Airport Rail Link: tap in and out with a contactless Visa or Mastercard.
• Grab and Bolt: add your UK card in the app before you land.
• Metered taxis and tuk-tuks: cash, in small notes.
• Trains, buses, flights and ferries: book online by card where possible; cash at small piers and bus stations.

Our guide to paying for tours and domestic transport has the full detail.

Paying safely

• Pay in baht, always. If a card machine or ATM offers pounds, decline — dynamic currency conversion costs far more.
• Check the name on every QR payment before you confirm; fake QR stickers over real ones divert payments.
• Use ATMs inside banks or malls, and cover the keypad.
• Keep cards in your sight when paying in restaurants and hotels.
• Carry two cards from different banks, kept apart, so one problem doesn't leave you stuck.
• Never scan a QR code to "receive" money — it's a scam.

Our guide to payment scams covers the warning signs.

Paying for big things

When a payment doesn't work

• UK card declined: your bank may have blocked it for security. Approve the payment in your banking app, then try again — or use your backup card.
• Online Thai site won't take your card: some Thai websites only accept Thai cards. Try a different card network, PromptPay, or pay at the counter.
• QR payment shows "failed" but money left: don't pay twice. Show the seller your app history; failed payments are normally reversed by the bank.
• Charged in pounds when you asked for baht: ask the merchant to refund and recharge in baht, and dispute it with your card provider if they won't.
• ATM kept your card: freeze it in your app, then contact the ATM's bank with your passport.

Small change and tipping

Large ATM notes (฿1,000) can be hard to use at small stalls and in taxis, so break them in 7-Eleven, supermarkets or restaurants and keep ฿20, ฿50 and ฿100 notes for small payments. Tipping isn't expected in most places, but rounding up a taxi fare or leaving small change in a restaurant is appreciated; some upmarket restaurants add a service charge to the bill.

How we compiled this reference

This reference draws on the research behind our Travel Money and International Banking guides: Thai QR and tourist wallet options (Sabaifly, January 2026; New Asia Living, May 2026; Bank of Thailand cross-border QR linkages), transport payments, Thai ATM fees, UK card fees, merchant surcharges and Wise's 2026 changes in Thailand (The Thailand Life). Payment options change quickly; check each app's current rules. Checked 13 October 2026. This reference is general information, not financial advice.