Working legally in Thailand requires two separate documents, and confusing them is the most common mistake foreigners make. You need a Non-Immigrant B (Business) visa, obtained from a Thai embassy or consulate before you arrive, and a separate work permit, issued by the Ministry of Labour after you arrive. The visa lets you stay; the work permit lets you work. You need both, and you cannot legally start working until the permit is in your hand. This guide covers the full 2026 process, the strict employer requirements, and the jobs foreigners are banned from doing.
The two-step system
- Non-Immigrant B visa: apply at a Royal Thai Embassy/Consulate in your home country. You generally cannot convert a tourist visa or visa-exempt entry into work status from inside Thailand.
- Work permit: after entering on the Non-B visa, your employer applies to the Department of Employment. With a WP.32 pre-approval, the permit must usually be obtained within 15 days of arrival.
- One-year extension: once you hold the work permit, your employer can apply to extend your stay to one year at the Immigration Bureau.
Strict employer requirements
Thailand limits foreign hiring to protect local jobs. The sponsoring company must:
- Be a properly registered Thai entity in good standing.
- Hold at least THB 2 million in registered capital per foreign worker.
- Employ at least four Thai nationals for every one foreign worker.
- Match your job description to the company’s actual registered business activity.
BOI-promoted companies enjoy relaxed capital/staffing rules and fast-track processing.
Documents and requirements
- Valid passport and Non-Immigrant B visa.
- Passport photos (3×6 cm), CV, and educational certificates (a bachelor’s degree is typically expected).
- A medical certificate from a licensed Thai hospital confirming you’re free of the prohibited diseases.
- Employer documents: company registration, shareholder list, VAT filings, financial statements and social-security records.
Processing at the Department of Employment is roughly 7 days; the overall journey from visa to permit is typically 4–8 weeks. Government fees are modest (around THB 3,000 for the permit).
Jobs foreigners cannot do (prohibited occupations)
Under the Royal Decree on Occupations Prohibited for Foreigners, Thailand reserves a list of around 40 occupations exclusively for Thai nationals — and working in them is illegal even with a visa and work permit. The list includes much manual labour, certain agricultural work, handicrafts, carpentry/wood carving, and various service and retail activities. The Ministry of Labour updates this list periodically, so always check whether your intended role is permitted. Penalties for working without a valid permit are serious — fines up to THB 100,000, imprisonment, and deportation.
Key rules to remember
- The work permit is tied to a specific employer, position and location — you can’t switch jobs without a new permit.
- Foreign workers pay Thai income tax (usually deducted by the employer).
- You’ll have ongoing immigration duties: the digital arrival card before entry, TM30 address notification, and 90-day reporting.
If you work remotely (not for a Thai employer)
If you’re a remote worker or freelancer employed by a company outside Thailand, the work visa isn’t the right fit. The Destination Thailand Visa (DTV) was created for this — it offers long validity and stays without needing a work permit. High earners and specialists may also look at the LTR or SMART visa tracks.
Avoiding scams
- No agent can guarantee a Thai work permit — the Ministry of Labour and Immigration decide.
- Verify that your sponsoring company is a real, registered Thai business that meets the capital and staffing rules.
- Never start working before the permit is issued, even if an employer pressures you to.
Disclaimer: This is a general guide based on publicly available official information current at the time of writing. Visa rules, fees and the prohibited-occupations list change — always confirm the latest requirements with the Royal Thai Embassy and Thailand’s Ministry of Labour before applying or paying any fees.
