Extending a Thai Tourist Visa: The Real Procedure, Step by Step
Two documents, one rubber stamp, a queue at an immigration office that is free, and a 1,900 baht fee. The hard part is not the process, it is the two-week rule and people find out about it on day 58.
Thailand's tourist stay is 30 days, and for a lot of visitors the answer is to leave and come back. That works. It is also expensive and pointless if you were going to stay another month anyway, and the extension is a straightforward, legal, unglamorous procedure that costs a fraction of a flight.
Last verified 20 September 2026.
First, the thing everyone gets wrong
You can only apply for an extension when you have less than 30 days left on your current permission. Not when you have 30 days left, and not when you have 20. Inside the last 30 days.
Apply early and the office will turn you away. Apply late and you have left yourself no room. The sweet spot is somewhere between 10 and 20 days remaining, which sounds counter-intuitive and is correct.
The 30-day mark is not a deadline for leaving, it is a deadline for starting the process. Overstaying a tourist stay is a criminal offence in Thailand with a fine that scales with the length of the overstay and, over roughly a year, a blacklist. The fines are not enormous at short lengths. The blacklist is the part that matters, because it applies to the whole immigration movement and it is slow to get lifted.
What the current rules actually allow
Since 15 September 2026 the exemption is 30 days, not 60. Almost every figure you have read online, and every guide written before that date, still says otherwise. The visa exemption now gives you 30 days on entry. On top of that you may buy a single 30-day extension at immigration, which takes you to 60 days total and costs 1,900 baht. That is the ceiling for an ordinary visitor with no visa.
The visa on arrival is a different and much smaller thing. It was available to 31 countries and is now available to three: Azerbaijan, Belarus and Serbia. It is 15 days, costs 2,000 baht, and it is not extendable. If you are on the visa on arrival you cannot buy your way to a month, let alone two.
Extensions must be requested before your current permission expires, and you only get one. The 180-day annual cap still exists and still bites long-stay residents who have been extending for years, but you will not approach it on an exemption any more. Multiple entries do not reset the annual figure.
What you need
Your passport.
A completed TM6 arrival card. This is the genuinely annoying part and it has caught out long-stay residents who arrived on a different permit and then found they needed it for the extension. File it online. It is free and the official site is the only legitimate one, and every other site charging you is reselling a form that does not have access to anything.
Passport photos, 4x6 cm. One is enough for an extension. There is a photo booth at the immigration office and it costs about 100 baht, which is cheaper than getting them done elsewhere.
Your current permit or entry stamp. It is in your passport, so this is the same object, but if your stamp is faint or your passport is old, take a photocopy of the page.
Where to do it, and how long it takes
At immigration, not at your embassy. This is the single most common confusion. Your embassy issues visas; immigration extends stays. If you go to the embassy you will be politely told to go to immigration, having lost a morning.
Bangkok has several immigration offices and the main one, on Soi Suan Phlu, is busy. The smaller offices at Chaeng Wattana and at Suvarnabhumi airport are often faster for the same service. Chiang Mai, Phuket and the major tourist cities all have immigration offices that can do this, which matters if you are not in Bangkok.
Budget half a day, not an hour. The fee is 1,900 baht, charged per person per extension. Since there is no 60-day extension left to buy, 1,900 is the only figure you need to plan around. Payment in cash, and there is a bank counter in the building.
The processing itself is fast, often 15 minutes, once you are at the counter. The waiting is the queue. Go early in the morning on a weekday.
You leave your passport. This is the part people dislike. It is usually returned the same day, occasionally the next day, and you cannot leave the country without it. Plan the day accordingly.
What they will ask
They want to know why you are staying longer, they will ask what you are doing, and they will ask where your money is coming from. Answer these honestly and briefly. A short, clear answer, a bank statement, and the extension is granted. An evasive answer or an argument about your rights is a different interaction and a worse outcome.
The bank statement is not usually demanded, but having a current account with a balance is the thing that makes the conversation easy. Many long-stay residents open a Thai account for exactly this reason.
What people get wrong
Thinking the visa exemption and the visa on arrival are the same thing. They are not, and since 15 September 2026 they are not even the same length. The exemption is 30 days and extendable once by 30. The visa on arrival is 15 days, costs 2,000 baht, and cannot be extended at all. The extension rules attach to what you hold, so check which one you actually have before you plan around it.
Not understanding the 180-day annual cap. If you have been in Thailand for a long time already, the extension you can get may be shorter than the one you are entitled to by the sequence. Ask specifically how many days you are being granted and check the date on the new stamp before you leave the counter.
Overstaying on a "one more week" several times. Each overstay is recorded and the fines accumulate, and the blacklist is triggered by the total, not by any single event.
Running to the border to get a new 30 days. A run to Aranyaprathet and back is a real strategy that a lot of people use, and it is not a loophole so much as a grinding, expensive, and increasingly futile habit. The border runs are well known and the authorities are aware of them.
Is it worth it?
For an extra month, the answer is straightforwardly yes. 1,900 baht is about 50 dollars for thirty more days in a country you have already committed to being in. It is the cheapest month of travel available anywhere.
For a second or third extension, the calculation changes, because at that point you are living in Thailand rather than visiting it, and the DTV and the retirement permit are the instruments designed for that. Using a tourist extension to live for a year is technically possible and a poor decision for a dozen reasons that are not about immigration law.
