Thailand's 30-Day Visa Rule: Extending Your Koh Phangan Stay

What changed on 15 September 2026

For two years, most visitors to Thailand walked off the plane and got 60 days without a visa. That scheme is gone. The Ministry of Interior published the new rules in the Royal Gazette on 31 August 2026 and they took effect on 15 September.

The shape of it now:

• 30 days visa-free for nationals of 60 countries and territories, including the UK, the US, Canada and Australia — and for tourism only.
• 15 days for Mauritius and Seychelles, as a separate tier.
• Visa on Arrival cut from 31 eligible countries to three.
• Bilateral agreements still run separately, giving 90, 30 or 14 days depending on the arrangement.

Anyone already stamped in before 15 September kept the stay they were granted — nobody's 60 days was retroactively shortened.

For a four-night or two-week stay, none of this touches you. For the people who come to Koh Phangan for a month, decide the island suits them, and start doing sums on the back of a beach menu, it changes the arithmetic completely.

Thirty days is usually enough. When it isn't, you have two routes

Extend once, on the ground

Thai immigration confirmed after the change that the 30-day exemption can be extended by up to another 30 days inside the country. That takes you back to roughly where the old rule left you, but with a trip to an immigration office and a fee in the middle.

The mechanism is the standard one: form TM.7, Application for Extension of Temporary Stay, with your passport and copies, one recent 4 × 6 cm photograph, and a 1,900 baht fee in cash. Most offices decide the same day. Offices also commonly ask for your TM30 — the notification your accommodation files for you — and your TDAC confirmation.

Two things worth being clear about. It is an application, not a purchase: paying the fee does not guarantee the days, and the decision sits with the officer. And the fee is not refunded if the answer is no.

Or arrive on a tourist visa instead

If you already know you want longer than a month, applying for a tourist visa before you travel is the calmer option. A tourist visa gives 60 days on entry and can itself be extended by 30 at immigration for the same 1,900 baht — potentially 90 days without any border hopping. Decide this at home, not in week three.

Where you actually go on Koh Phangan

There is an immigration office on the island, in Thong Sala, listed at 112 Moo 3 with weekday hours of 08:30 to 16:30. From the hills above Maduawan it is about ten minutes down the road, which is the whole appeal — no ferry, no day lost.

The honest caveat: the Thong Sala office is small, and sources disagree about which services it will process for tourists on any given week. Some say extensions are handled there; others send foreigners to the provincial office on Koh Samui, at Maenam, which is the main immigration office for the Gulf islands. Two different phone numbers circulate online for the Phangan office, which tells you how much of the published information is out of date.

So: ring before you ride down, and ask specifically whether they are processing tourist extensions that week. If the answer is no, the Samui trip is a full day — first ferry from Thong Sala, taxi across to Maenam, back in the afternoon — and worth timing well before your stamp expires rather than on the last morning.

Practical things that save a second trip:

• Bring cash. Immigration fees are not a card transaction, and queues move faster than ATMs on this island do. If you are unsure where to draw money, we have written about cash and ATMs on Koh Phangan.
• Get photocopies made before you arrive at the counter: passport photo page, entry stamp, current visa, any previous extension stamps.
• Carry a passport photo in your luggage from home. Finding one at short notice in Thong Sala is possible but it costs you an hour.
• Sign every copy. Officers ask for it and it is easier done at the table than in the queue.
• Ask your accommodation for the TM30 filing. Hotels and licensed villas do this as a matter of course; private rentals sometimes forget, and it is the document most likely to be missing.

The arrival card everyone forgets

Separate from any of this, the Thailand Digital Arrival Card (TDAC) has been compulsory since 1 May 2025 for every foreign national entering by air, land or sea — including infants, including children, one submission per person. You register online within three days before arrival and keep the QR code on your phone.

It is valid for a single entry. Cross out to Malaysia for a weekend and you submit a fresh one to come back. It is free, it takes five minutes, and it is the single most common thing people discover they have not done while standing at a check-in desk.

Visa runs: the rule that quietly broke the old plan

The border-bounce strategy has narrowed. From 15 September 2026, visa-exempt travellers may generally enter Thailand through a land border no more than twice per calendar year. Nationals of Malaysia, Brunei, Indonesia and Singapore sit outside that cap. Air arrivals are not capped by the same rule — but immigration retains discretion at every checkpoint, airports included, and repeated visa-run patterns can lead to refusal of entry or of an extension.

If your plan for a six-month winter on Koh Phangan depends on repeatedly hopping to a land border, it no longer works as it did. Look at a proper visa before you come.

And if the dates slip anyway: overstay is fined at 500 baht per day, capped at 20,000 baht, with worse consequences the longer it runs. It is not a thing to be casual about.

A note on planning a long stay

Rules of this kind change with a Royal Gazette notice and fifteen days' warning — the current ones did exactly that. Check your own nationality against the current list before you book flights, and treat anything you read online, including this page, as something to confirm.

If you are considering a longer season here, the practical question is usually not the visa but the rhythm: somewhere to cook, space to practise, quiet enough to work and sleep. Villa Ullassa takes bookings from four nights and is comfortable for much longer than that — and Thong Sala, with its ferries, its market and its immigration counter, is ten minutes down the hill.