You Cannot Earn Money in Thailand on a Tourist Visa, and the List of Jobs You Cannot Do Is Longer Than You Think
Working a single shift behind a bar is technically illegal on every visa except a work permit, and the list of jobs closed to foreigners even with a permit runs to more than two dozen.
The reasoning goes like this: I am on a long-stay visa, I have a Thai girlfriend, her brother owns a bar, and I help behind the bar two or three nights a week. There is no salary. It is helping. Everyone is relaxed about it.
Under Thai law, help is work, and work without a permit is an offence with a fine attached to it and a deportation attached to the fine.
Last verified 5 September 2026.
Why the bar shift is illegal
Since the 2017 amendments, work means any physical or mental activity performed in Thailand, whether it is paid or not. That single clause closes the door on most of the arrangements people assume are fine. Unpaid help, bartering for accommodation, and volunteering are all inside the definition.
You need the right visa before you can get a permit, and the permit before you can start work. The sequence is not administrative detail. A work permit is applied for against a non-immigrant B or O category, and you may not begin the work until the permit is actually issued.
Enforcement is not theoretical. Thailand ran a nationwide sweep in May 2026 targeting both foreign workers without permits and the businesses employing them.
The list of jobs you cannot do, permit or not
Reserved occupations are closed to foreigners entirely. Holding a work permit does not unlock them. The Ministry of Labour has published the list, and the highest-profile items are:
Tour guiding. Even unpaid. Even for friends. Operating any sightseeing tour inside Thailand requires a Thai-licensed guide.
Thai massage. Reserved as a matter of cultural protection, which is the stated rationale and is taken seriously as a rule.
Driving motor vehicles for hire. This includes passenger taxis, public vans, tour buses, delivery vehicles, motorbike taxis and tuk-tuks. Renting motorbikes out to customers falls under the same prohibition, which surprises people who assume owning the fleet makes it a business rather than a driving job.
Hairdressing, beauty treatment, nail work and make-up. Reserved.
Street vending and market selling. Hawker stalls, push carts, selling at local fresh markets, selling lottery tickets on foot.
Clerical, secretarial, brokerage and agency work. Independent real estate agency, insurance brokering and stock representation are closed. The exemption is for genuinely cross-border or international trade business. A job title of business consultant does not help if your actual week is viewings and domestic contracts.
Accounting, auditing and bookkeeping. Public accounting work is reserved to Thai CPAs.
Traditional crafts. Wood carving, Thai doll making, goldware, silverware, lacquerware, bronze casting, making Buddha images.
Manual labour and security. Unskilled physical work, construction, and guarding premises.
The full list runs to more than two dozen entries once every annex is counted. The common thread is that anything manual, anything cultural, anything involving a customer in person, and anything low-wage is reserved.
What it costs to get it wrong
The worker: a fine of 5,000 to 50,000 baht, deportation, and a two-year ban on applying for a work permit. The ban is the part that is hard to undo. A two-year bar on the permit is a long time inside a visa system that already moves slowly.
The employer: 10,000 to 100,000 baht per foreign worker. Repeat offences bring up to a year in prison, fines of 50,000 to 200,000 baht per worker, and a three-year ban on employing foreign staff.
Reserved-occupation breaches carry a higher tier under the Alien Working Act, reaching 400,000 to 800,000 baht per worker.
Employers also commit an offence for retaining a foreign worker's identity documents, which is a real risk in a country where handing over your passport is still normal practice in some sectors.
What legitimate work actually looks like
The route is: non-immigrant B or O visa, sponsor applies for the permit, permit issued, then you start. The employer has to match the job description on the permit to what you actually do. Audits compare the two, and a mismatch in either direction is an offence.
You must carry the permit while working and produce it on request.
Minimum salary requirements apply and they vary by nationality, so a job that clears the bar for one applicant can be refused for another for exactly that reason.
The honest bit
Almost nobody who gets caught was trying to run a business in Thailand. It is the person who did three shifts for a friend, or helped in a family shop, or taught a language class for a couple of hours a week. The enforcement notices are unusually clear that it does not matter whether it was the main job or a side occupation, and the employer is fined on the same basis whether they knew or not.
If money is going to change hands in Thailand, the permit conversation comes before the first invoice, not after the second. The cost of doing it properly is measured in weeks. The cost of skipping it is measured in baht you will not see again, and a two-year hole in the middle of a long-stay plan.
