Cash, ATMs and Cards on Koh Phangan: What to Know in 2026

Why this is worth ten minutes of planning

Koh Phangan runs on cash far more than most visitors expect. A Bank of Thailand and Visa study released at the end of 2025 found that cash remains the dominant payment method for tourists in Thailand, even as cashless options gain ground . On an island where a good deal of the food, transport and massage economy is one person with a cash box, that gap is wider still.

The problem is that getting hold of baht here is expensive if you do it badly, and the difference between doing it well and doing it badly over a two-week stay is easily two or three thousand baht. Almost all of it comes down to three decisions.

Decision one: how much to take out at once

Every Thai ATM charges a fee on the Thai side when you use a foreign card. The standard figure has been 220 baht per withdrawal , and it applies regardless of which bank's machine you use — there is no clever bank to seek out. There are now reports of machines quoting more than that, so read the fee screen before you confirm rather than assuming. Whatever the number, it is flat. It costs the same to withdraw 2,000 baht as 20,000.

That makes the withdrawal limit the single most valuable thing to know. Krungsri — the yellow machines — officially allows up to 30,000 baht in one transaction, although your own bank or card may cap you lower . Most other machines stop well short of that. Taking 20,000 baht once instead of 5,000 baht four times saves you three fees for the same money.

Separately, your home bank will usually add its own foreign transaction charge, commonly 2–3% , so a card that waives that — the usual travel fintech cards — is worth sorting out before you fly.

One more route exists: some bank branches will do an over-the-counter cash advance on a Visa or Mastercard, which can avoid the machine fee, though policies vary by bank and branch and staff will often simply point you at the ATM outside . Worth asking at a Thong Sala branch if you need a large sum; not worth a special trip.

Decision two: decline the conversion

The ATM will offer to show you the amount in your own currency and "guarantee" the rate. Say no. Accepting means the machine converts at its own rate and adds a percentage on top; choosing "decline conversion", "without conversion" or "charge in THB" hands the conversion to your own bank instead . The gap can be two or three baht to the pound or dollar — on a 20,000 baht withdrawal that is real money, and it is the fastest way to lose it.

The same screen appears on card machines in restaurants and shops. Same answer: pay in baht.

Thai ATMs only dispense baht , so there is no reason to arrive with foreign cash beyond a small emergency reserve. Exchange booths on the island exist but the rates are quietly worse than in Bangkok or on Samui, and their "no commission" framing hides the spread. If you do use one, check the posted rate against the real mid-market rate on your phone first.

Decision three: where you top up

Thong Sala is the island's banking town and the only place with a proper choice of branches — about ten minutes' drive from the villa, and the obvious stop on the way back from the ferry or the fresh market. Machines are easy to find in the main centres and in 7-Elevens; the rule gets thinner the further you go.

Plan around these gaps:

• Thong Nai Pan has a handful of ATMs but no bank branch and no money changer, so the far north-east is not the place to discover your card has been blocked.
• Than Sadet, Bottle Beach and the smaller east-coast bays are cash-only in practice, and the national park and boat fees that go with them are collected in cash.
• Sunday and public holidays empty machines fast in the smaller villages, particularly around the full moon when the island's cash demand spikes.

Tell your bank you are travelling. A card frozen for suspicious activity on a Saturday night is a genuinely annoying way to spend a Sunday.

Cards and QR codes: where they actually work

Cards are fine at supermarkets, bigger restaurants, dive shops, pharmacies and most hotels. Below that line, expect either cash or a QR code. Smaller places that do take cards sometimes add a surcharge for it, which they should tell you about before swiping — ask.

Thailand's QR system, PromptPay, is what locals use for almost everything, and it is slowly opening to visitors. Travellers from China (via Alipay, WeChat Pay or UnionPay), Malaysia, Singapore, Vietnam, Cambodia, Indonesia, Laos, Hong Kong, Korea and Japan can scan Thai QR codes directly from their home banking or e-wallet apps . There is also a tourist e-wallet, TAGTHAi Easy Pay, which lets foreign visitors pay by Thai QR without a Thai bank account . If you are coming from Europe, Australia or North America, assume you will still be handing over notes.

A sensible plan

Withdraw once on arrival — at Samui airport, the pier, or Thong Sala on your first afternoon — and take the maximum your card allows. Keep most of it at the villa and carry a few thousand baht a day. Top up on a market run rather than making a separate journey. Keep a second card from a different network somewhere other than your wallet.

And keep small notes. Nobody selling you a coconut at a roadside stall wants a thousand-baht note at nine in the morning, and the songthaew drivers rarely have change either.

If you are working out the rest of the practical side of a stay — getting here, getting around, what the island does in each season — the rest of the journal covers it. At Villa Ullassa we are happy to point guests at the nearest machine that still has cash in it, which on this island is a more useful piece of local knowledge than it sounds.