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Thailand Visa Services: Tourist Visas & Extensions

Practical help with Thai tourist visas, extensions at immigration, 90-day reports and TM.30 filing — what the process involves and what to prepare before you queue.

  • We check your paperwork before you queue, not after
  • Extension appointments handled at your local immigration office
  • 90-day reporting and TM.30 address filing
  • Document checklists in plain English
  • Honest advice — including when you don't need us
  • We confirm current rules for your nationality before you travel

Thai immigration paperwork is rarely difficult. It is, however, unusually unforgiving of small mistakes — a photocopy of the wrong passport page, an unsigned form, a photo of the wrong dimensions — and each mistake costs you a return trip to an office where the queue starts before it opens.

That is the entire value of what we do here. We’re not going to pretend visa work is glamorous.

Important: Thai immigration rules, visa-exemption lists and permitted stay lengths change from time to time, and they differ by nationality and by immigration office. Nothing on this page is legal advice or a statement of current rules. Tell us your nationality and dates and we will confirm what applies to you, from the official source, before you travel.

What we actually help with

Before you arrive

  • Working out whether you need a visa at all for your nationality and planned length of stay
  • Explaining which visa category fits your trip — and which doesn’t
  • Document checklists for your nearest Thai embassy or consulate, in plain English
  • Supporting documents that visitors commonly forget: confirmed accommodation, onward travel, proof of funds in the required format

Once you’re here

  • Extensions of stay at the immigration office covering your address
  • Preparing, copying and correctly signing the whole document set
  • Attending the office with you, or on your behalf where that’s permitted
  • 90-day reporting for long-stay visitors
  • TM.30 address notification — the filing that catches out people staying in private accommodation rather than a hotel
  • Re-entry permits if you need to leave and come back without losing your permission to stay

What we won’t do

We’ll be direct about this, because agents in Thailand have a mixed reputation and you deserve to know where the line is.

We will not misrepresent your circumstances to immigration, provide documents that aren’t genuine, or arrange any “special handling” that depends on a relationship rather than the rules. Beyond being illegal, it puts a black mark against your passport, not ours — and you’re the one who has to live with it at every future border.

If your situation doesn’t fit the rules, we’ll tell you that clearly and help you find one that does.

When you honestly don’t need an agent

Plenty of visitors don’t. If you are:

  • Entering visa-free for a short holiday, with a return ticket, staying in a hotel — you need nothing from us at all
  • Comfortable with bureaucracy, based near a quiet provincial immigration office, and not in a hurry — you can handle a straightforward extension yourself in a morning

Where people find us worth the fee is when there’s friction: a busy Bangkok office, a tight timeline before your permitted stay ends, a complicated set of documents, a language barrier, or simply not wanting to spend a day of a two-week holiday sitting on a plastic chair.

What the extension process actually looks like

Knowing the shape of it removes most of the anxiety:

  1. Check your permitted-to-stay date. It’s the stamp in your passport, and it is not always the date you assumed. This is where most problems begin.
  2. Assemble the documents — passport, departure card, photos, form, address proof, signed copies of specific pages.
  3. Go to the right office. Immigration is organised by the province and district you’re staying in, not by where you feel like going.
  4. Take a queue number early. Popular offices issue their day’s numbers well before lunch.
  5. Submit, pay the government fee, receive the stamp — usually the same day at most offices.

Individually each step is easy. The failure mode is almost always step 2 or step 3.

Common mistakes we see every month

  • Waiting until the last two days. If anything is wrong, you have no room to fix it. Start two weeks out.
  • Assuming your friend’s rules are your rules. Requirements differ by nationality, visa type and office.
  • Forgetting the TM.30. If you’re staying in a condo, an Airbnb or with a friend rather than a hotel, someone needs to have filed your address. Immigration may ask for it at your extension.
  • Overstaying “just a couple of days”. Overstay carries a daily fine and, past certain thresholds, entry bans. It is genuinely not worth it — an extension costs less and takes an afternoon.
  • Trusting an out-of-date forum post. Thai visa rules have changed several times in recent years. A confident answer from 2023 may be wrong today.

How we charge

Visa work is quoted per case, because the effort varies enormously — a single straightforward extension is a different job from a family of four with mixed nationalities and a tight timeline.

What you’ll always get is a fixed fee, quoted before we start, listed separately from the government fees (which we never mark up — those go to immigration, and we show you the official amount).


Tell us your nationality, your dates and where you’re staying → and we’ll come back with exactly what applies to you and what, if anything, it costs. If the answer is “you don’t need us”, that’s what we’ll say.

Sorting transport at the same time? See private van and driver hire → and Bangkok airport transfers →.

Visa Services: your questions answered

Do I need a visa to visit Thailand as a tourist?

It depends entirely on your passport. Many nationalities can enter visa-free for a set period, others need a tourist visa arranged before travel, and the lists and durations are changed by the Thai government from time to time. Send us your nationality and travel dates and we will confirm what currently applies to you — we check the official source rather than repeating what a blog said last year.

Can I extend my stay in Thailand once I'm here?

In most cases yes, at a Thai immigration office, for a government fee and with the right documents. The process itself is not complicated — the difficulty is that requirements vary by office, photocopies must be exactly right, and a missing signature means coming back tomorrow. That is precisely the part we handle.

What documents do I need for a Thai visa extension?

Typically your passport, the departure card from your arrival, passport photos, the completed application form, proof of your address in Thailand, and copies of specific passport pages — each signed. Exact requirements differ between immigration offices, so we send you a checklist for your specific office rather than a generic list.

What is a 90-day report and does it apply to me?

Foreigners staying in Thailand continuously on certain long-stay permissions must report their current address to immigration every 90 days. It does not apply to short tourist visits. If you are on a long stay and unsure whether it applies to you, ask us — the penalty for missing it is avoidable and irritating.

Is using a visa agent legal in Thailand?

Yes. Helping you prepare correct documents, book appointments and attend the office is a normal, legitimate service. What we will not do is anything that involves misrepresenting your situation to immigration — that puts your stay and your record at risk, and it is not a service worth having.

How far in advance should I sort my visa?

If you need a visa before travelling, start at least four to six weeks out — embassy processing times vary a lot by country and season. For extensions once you're in Thailand, come to us about two weeks before your permitted stay ends, not two days.

Get a fixed price for your trip

Tell us your dates and what you have in mind. We reply with a clear total and a suggested plan — no obligation.

Ask ATT for a quote