Thailand Work Permit Guide for Foreigners

A visa lets you seek entry or stay under an immigration purpose. It does not automatically give you permission to work. For ordinary Thai employment, the usual combination is an appropriate Non-B route and work authorisation through the Department of Employment.

Rules checked: 3 September 2026. The Department of Employment launched its current national e-WorkPermit service in October 2025. Specialist BOI programmes and defined exemptions can follow different procedures.

Who is involved

The process is rarely yours alone. It usually involves:

the foreign worker
the Thai employer or sponsoring organisation
the Department of Employment
Immigration for the visa and permission to stay
a professional regulator when the occupation requires a separate licence

If the employer cannot explain its part, do not start working on the promise that the paperwork will catch up later.

The normal sequence

For an ordinary employee, the route commonly includes:

Employer and job checks.
Employer documents supporting the Non-B application.
The correct immigration status.
Work-permit submission through the current Department of Employment process.
Permission before work begins.
Later updates or renewals when the job, employer or status changes.

Do not copy that sequence onto SMART, LTR, BOI-promoted or urgent-work cases without checking their rules.

What the permission covers

Work authorisation is connected to approved circumstances. Changing employer, job, duties or another recorded detail may require an update or new approval.

Ask a more useful question than "Do I have a work permit?": does the current permission cover this employer and this work?

Prohibited and restricted occupations

The Ministry of Labour publishes lists of work prohibited or conditional for foreigners. The current notification separates completely prohibited work from work allowed only under specified conditions or agreements.

The Department of Employment provides an unofficial English translation, but the Thai legal text controls. The list includes occupations many foreigners wrongly assume are harmless side work. Check before accepting the role or advertising the service.

A professional licence and a work permit solve different problems. An architect, engineer, teacher, medical professional or other regulated worker may need approval from another body as well.

Remote work and the DTV

The DTV has an official workcation route for qualifying remote workers, foreign talent and freelancers. That does not turn it into permission for ordinary Thai employment or local work.

If the customer, employer or company is in Thailand, get advice on the real activity. The marketing phrase "digital nomad" is not a legal analysis.

SMART and LTR

SMART Visa and certain LTR holders use programme-specific work arrangements. Their benefits apply to qualifying endorsed activities and should not be generalised to other visas.

If the job changes or ends

Work permission and an employment-based extension can both be affected. Ask the employer, Department of Employment and Immigration for the cancellation or change sequence before the final working day.

Keep copies of every submission and approval. An employer's HR team may handle the queue, but you still need to know the date your permission to stay ends.

Common mistakes

Starting work when only the visa has been issued.
Assuming unpaid work can never count as work.
Working for a second organisation without checking the permission.
Ignoring the prohibited-occupation rules.
Treating company ownership as automatic permission to work in the company.
Forgetting that the work permit and immigration stay have separate dates.

Official sources

Confirm the exact permission with the Department of Employment before work starts.