The short answer

The rule of thumb: the bigger and more formal the business, the more likely it takes cards. The smaller and more local, the more likely it's cash or a QR code. Bangkok and the big resort areas are the most card-friendly; islands, rural areas and the north lean more heavily on cash.

The ideal set-up for most British visitors is two fee-free cards — a debit card and a credit card, on different networks — used wherever they're accepted, plus a modest amount of cash withdrawn in large amounts for everything else.

Where you need cash and where cards work

Where both work, a fee-free card is usually the better choice for anything over a few hundred baht — it's cheaper, leaves a record, and you're not carrying as much cash. For small purchases, cash or QR is often simpler and avoids holding up the queue.

Which is cheaper: cash or card?

It depends almost entirely on your UK card. Here's what ฿30,000 of spending — about £678 — costs each way:

On a fee-free card, paying by card wherever you can is the cheapest option, full stop. Every card payment is a payment you don't need ATM cash for. On a standard card, you pay your bank's fee either way, so switching to a fee-free card saves far more than any choice between cash and card.

Two things can tip the balance the other way. Some smaller businesses add a surcharge for card payments, and accepting dynamic currency conversion — being charged in pounds — wipes out the saving instantly. Always pay in baht.

Every way to pay, compared

The main ways a British visitor can pay in Thailand, and what each costs. Scroll sideways on a phone.

Merchant surcharges and conversion charges are separate — always pay in baht. Checked October 2026.

Contactless, Apple Pay and Google Pay

Contactless card payments are now normal in Thai malls, supermarkets, 7-Eleven, chain restaurants and on the Bangkok MRT. If you've added your UK card to Apple Pay or Google Pay, you can usually tap your phone wherever the terminal takes your card, and the payment goes through that card with exactly the same fees.

A few things work differently from home. Thai terminals often ask for your PIN even on modest amounts, so know the PIN for every card you carry. Some older terminals only take chip and PIN. And smaller businesses with a card machine may still prefer that you insert the card.

Phone payments are also a useful backup. If a physical card is lost or swallowed by an ATM, most UK digital banks let you add a replacement virtual card to your phone instantly, so you can keep paying by card while you wait — though you'll still need a physical card, or your second card, for cash.

Paying Thai QR codes as a visitor

Thailand is one of the most QR-heavy countries in the world. In 2024, 61.5% of people aged 16 and over used QR codes every month — the third-highest rate globally. The national system, PromptPay, lets anyone with a Thai bank app scan a code and pay instantly, with no fee. That's why you'll see QR codes at street-food carts, market stalls, massage shops and even on taxi dashboards.

The catch is that a UK bank app can't pay a PromptPay code. But visitors now have several ways in:

Whichever wallet you use, top it up in baht. If you top up with a UK card and are offered a pounds amount, decline — the conversion margin defeats the purpose. And keep a few hundred baht in cash anyway for when the signal drops, the QR code won't scan, or the vendor prefers notes.

Card surcharges and minimum spends

Your card being fee-free doesn't stop a Thai business adding its own charge. Some smaller hotels, tour agents, dive shops, tailors and restaurants add a surcharge of a few per cent to card payments, and some set a minimum spend. It's the merchant's charge, not your bank's, so no UK card avoids it.

• Ask before you pay whether there's a card surcharge.
• Compare with cash. A 3% surcharge is roughly what a ฿220 ATM fee costs on ฿7,000.
• Use a credit card for big bookings even with a surcharge, if you want Section 75 protection.
• Check the receipt for the surcharge and for any pounds amount (conversion).

Large hotels, malls and chain businesses generally don't surcharge. It's most common where card fees eat into thin margins — small tour operators and family businesses.

A typical day's payments

To show how it works in practice, here's how a day in Bangkok might look for a visitor with a fee-free debit card, a fee-free credit card and some cash:

Roughly half the payments are by card and half in cash — but by value, cards cover the majority. That's typical, and it's why a single ฿20,000 withdrawal can last a couple far longer than they expect.

Bangkok, the islands and the north

How much you'll rely on cash depends on where you are:

Before heading to a small island or a rural area, take out enough cash in town. ATMs exist almost everywhere, but they can run low at busy times, and a single machine on a small island is not something to rely on.

Using cash in Thailand: notes, change and tips

Cash in Thailand comes with a few habits worth knowing:

• Break ฿1,000 notes early. ATMs mostly give ฿1,000 notes, which street vendors and drivers often can't change. Use them at 7-Eleven, supermarkets and restaurants.
• Keep small notes and coins — ฿20, ฿50 and ฿100 notes for food, transport and tips.
• Agree prices first for tuk-tuks and motorbike taxis, and have roughly the right money ready.
• Bargain politely at markets — cash makes haggling simpler, but keep it friendly.
• Tip in cash. Small tips for massage staff, guides, drivers and hotel staff are appreciated and almost always given in cash.
• Count your change before you walk away, especially at busy stalls.
• Handle notes respectfully. Thai banknotes carry the King's portrait — don't step on dropped notes or write on them.

None of this needs a lot of cash. A sensible float of small notes, topped up from a large ATM withdrawal every few days, covers almost everything.

Living in Thailand: going almost cashless

For people who live in Thailand, the cash-versus-card question largely disappears. With a Thai bank account, you pay almost everything — street food included — by scanning a PromptPay QR code in your banking app, with no fee. Withdrawals at your own bank's ATMs are free. Bills, rent and school fees go by transfer.

That shifts the cost to a different place: moving money from the UK into your Thai account. Regular transfers through a specialist provider usually cost far less than a UK bank's international transfer, and for larger sums — a condo, a car, a year's rent or a retirement visa deposit — the exchange rate and timing matter far more than any card fee.

If you're planning a long stay or a move, it's worth setting up both sides properly: a Thai account for daily life, a UK account that accepts non-residents, and a plan for how and when you transfer money and draw on pensions or savings.

The best cards for paying in Thailand

A fee-free debit card for everyday payments and cash, and a fee-free credit card for bookings — ideally one Mastercard and one Visa.