Thailand got the name from a tourism slogan, and it stuck because it is roughly true at the arrivals hall. What the slogan does not say is that 2 kinds of foreigner now come through that hall for longer than a holiday, and they are on different paperwork from the first day. One has a job offer, or a company of their own, and needs permission to work. The other has a hospital appointment, a rehab booking or a doctor’s letter, and needs permission to stay while they get better. The visas are not the same, the documents are not the same, and mixing them up is the most common reason either group ends up at an immigration office they did not plan to visit.
This is the plain version of both routes, the work one and the recovery one, with the visa that fits each and the rules that come with it. The numbers are from the Thai embassy pages and the US government’s own guide to Thai healthcare, and they move, so the embassy page for your own country is the final word on the day you apply.
Work needs a Non-Immigrant B visa plus a separate work permit. Recovery needs a medical visa, or for a short stay no visa at all, and neither of those lets you work.
What People Come To Thailand To Recover From
Three things, mostly. Surgery that is cheaper and quicker than at home, with the weeks after it spent somewhere warm. Dental work, which is the biggest single category by the number of people. And rehab, for alcohol, drugs or burnout, where Chiang Mai and the islands have a run of residential centers that take people from Australia, the UK and the Gulf for 4 to 12 weeks at a time.
The hospital side is bigger than most people picture before they arrive. The US Commerce Department’s healthcare guide to Thailand counts 62 hospitals accredited by Joint Commission International, the same body that accredits American hospitals, which puts the country fourth in the world on that count, and it puts the number of people who traveled there for treatment in a single pre pandemic year at about 3.5 million. Bumrungrad and Bangkok Hospital are the 2 names that come up, and both run international patient departments that handle the paperwork, the translator and the hotel across the road.
What the brochures leave out is the recovery part. A knee replacement is 4 days in the hospital and 6 weeks of physio after it, and the 6 weeks are the reason the visa question matters, because a holiday entry does not cover them.
People in demanding jobs have been doing this for a while, and the reasons they give are much the same, distance from the office, a lower price and privacy, which is the ground covered in why executives are seeking recovery abroad.
The Visa For Recovery Depends On How Many Days The Treatment Takes
The recovery route has 4 doors and the length of the treatment decides which one. The embassy pages sort them by days, so that is how they are sorted here.
Under 60 Days: Usually No Visa At All
Passport holders from most Western countries get 60 days on arrival with no visa, and immigration has for years allowed people on that entry to be in the country for treatment, with a hospital letter in the bag in case anyone asks. A dental course, a cosmetic procedure with its follow up, a 4 week rehab program, all fit inside that. The entry can usually be extended once at a local immigration office for a fee, which buys another 30 days, and that is the quiet way most short recoveries are done.
60 Days With A Hospital Letter: The Tourist Visa For Medical Treatment
For people whose passport does not get the exemption, or who want the purpose on paper, there is a single entry tourist visa marked for medical treatment, 60 days, applied for online through the Thai e-visa system before travel. The one document that matters on it is the appointment letter from the Thai hospital, on its letterhead, signed, with the applicant’s name and the dates on it. The Thai consulate’s own page is blunt that a screenshot of that letter instead of the file will stall the application.
Over 60 Days: The Non-Immigrant O For Medical Treatment
This is the one for a course of treatment that runs past 2 months, chemotherapy, a run of surgeries, a long rehab stay. It is a non immigrant visa in the O category, single entry, 90 days on arrival, and the embassies list what goes with it.
- Passport with at least 6 months left.
- The hospital’s appointment letter, plus a copy of the hospital’s registration certificate in some countries.
- Proof of money for the treatment and the stay, usually 3 months of bank statements or a sponsor’s letter.
- A medical certificate from a doctor at home saying what the condition is and why it is being treated in Thailand, in English, on letterhead.
The fee is around 2,000 baht for single entry at most embassies, and extensions after the first 90 days are done inside Thailand at the immigration office, not at the embassy.
Over 90 Days: The 1 Year Medical Treatment Visa
Thailand has been building a longer visa for patients whose treatment plan runs past 90 days, a 1 year stay with multiple re entries, with a doctor’s treatment plan as the core document and up to 3 family members allowed to come on their own Non-O visas. The embassy in Switzerland lists the long medical category as Non-Immigrant O4 among the O subtypes. Anyone whose plan is that long should ask the hospital’s international department which version is being issued at the time of booking, because the detail has shifted more than once since it was announced.
None of the 4 doors allows work. A person on a medical visa who takes a job, even remotely, is working illegally, and the hospital does not check.
What Working In Thailand Looks Like From The Employee’s Side
The jobs foreigners actually get are narrower than the expat forums suggest. Teaching English is the largest group by far. After that come hotel and resort management, the regional offices of multinationals in Bangkok, engineering and technical roles at the car and electronics plants on the Eastern Seaboard, and a growing number of people at Board of Investment promoted companies, which is the term that comes up again in the visa section because it changes the rules. Freelancing for foreign clients from a Bangkok apartment is common, widely done and, until the digital nomad visa arrived, not legal, which is a distinction a lot of people only found out about at the border.
Once the job is real, the law that governs it is the Labour Protection Act, and it is more protective of the employee than many people from the US expect. Probation runs 119 days almost everywhere because severance rights start on day 120, the working week is capped at 48 hours, there are 13 public holidays a year that the employer has to give, and severance is set by law on a scale that rises with years of service, from 30 days’ pay after 120 days to 400 days’ pay after 20 years. The guide to understanding labour & employment law in Thailand that the Acclime firm publishes runs through those numbers with the sections of the Act beside them, and it is the page to read before signing a contract, because a contract that gives less than the Act is unenforceable on those points and a surprising number of them do.
The other half of the law is what happens when it goes wrong. Thailand has a separate Labour Court, the employee can file there without a lawyer, and the court leans toward mediation first. The rules and regulations around a dispute, from the first written warning to the filing, are set out by JusLaws on its labor disputes page, and the thing worth knowing from it is that a foreigner’s work permit is tied to the employer, so losing the job and losing the right to stay happen in the same week unless the next employer is already lined up.
A Thai employment contract cannot give less than the Labour Protection Act, and the Act gives more than most foreign employees assume. Read the severance scale before the salary.
The Visa For Work Is 2 Documents, Not 1
This is the part that catches people. A work visa in Thailand is 2 separate things from 2 separate ministries, and having 1 without the other is the same as having neither.
The Non-Immigrant B Visa
The Non-B is issued by a Thai embassy outside the country, before travel, on the strength of a letter from the Thai employer. It is a permission to enter for work. On its own it does not permit work, and a person who arrives on it and starts on Monday is working illegally until the second document comes through.
The Work Permit
The work permit is issued by the Ministry of Labour inside Thailand after arrival, to the employer on the employee’s behalf, and it names the employer, the job title, the duties and the workplace. Work outside that description, a second job, a side contract, is work without a permit. The permit went digital in late 2025 and a temporary one now issues at approval, which has shortened the gap. Once the permit exists, the Non-B is extended inside Thailand for a year at a time, and both are checked again at each renewal.
The Rule That Decides Whether The Job Can Exist
The employer, not the employee, has to qualify, and the test is the one that stops most small companies from hiring a foreigner at all.
- 2 million baht of registered capital for each foreign employee.
- 4 Thai employees, registered for social security, for each foreign employee.
- The company registered for VAT and holding whatever licenses its business needs.
So a company that wants 3 foreigners needs 6 million baht of capital and 12 Thai staff on the books, and that is why so many expats work for Board of Investment promoted companies, which are outside the ratio, or arrive on an LTR visa, which is the long term resident route for high earners and also sits outside it.
Remote Work: The DTV
Since 2024 there has been a Destination Thailand Visa for people employed by, or freelancing for, companies outside Thailand. It is good for 5 years, allows stays of up to 180 days at a time, and asks for proof of about 500,000 baht in funds and of the foreign employment. It is the right paper for the person on a Bangkok balcony with a laptop, and it does not permit work for a Thai employer. That still needs the Non-B and the permit.
The Mistakes Each Group Makes, And The Order That Avoids Them
The recovery group gets the days wrong. They book a 6 week surgery and follow up on a 60 day entry, the follow up slips by a fortnight, and the last week is spent at an immigration office with a hospital letter asking for an extension that may or may not be granted on the day. The fix is to count the treatment in days before booking the flight, add 3 weeks, and pick the visa door that covers the total, not the planned one.
The work group gets the order wrong. They arrive on a tourist entry with a job offer in hand, expecting to sort the visa out in the country, and find that the Non-B has to be issued by an embassy outside Thailand, which means a flight out to a neighboring country and back before any of it can start. The fix is to have the employer’s letter before leaving home and to get the Non-B stamped at home.
Both groups underestimate the 90 day report. Anyone staying more than 90 days on any of these visas has to tell immigration their address every 90 days, in person, online or by post, and the fine for forgetting is small, but a missed report is noted on the file at the next extension.
For the money side of a long stay, which is where long stays run into trouble, the arithmetic is the same as any long trip and is laid out in simple ways families can travel on a budget, and the packing and paperwork list before a long medical stay is covered by the vacation checklist sorted by when things matter, which applies to a 10 week recovery with a few lines added for the hospital.
The order, for either group, is the same 3 steps. Get the letter first, the hospital’s or the employer’s. Apply at the embassy at home through the e-visa site at least 15 working days out. Then book the flight, and not before.
