A visa or permission to stay and a work permit solve different legal problems. A non-immigrant visa may allow entry or residence, but it does not by itself authorise employment. Before doing productive work, confirm that the role is open to foreign workers, that the employer and application route qualify, and that the required permission has been granted.
Requirements vary by nationality, job, employer, location and legal route. Use this guide to prepare, then confirm the live checklist with the Department of Employment or the agency responsible for the specific route.
Confirm that the activity counts as work
Do not assume that an unpaid role, directorship, short assignment or work for an overseas company falls outside the rules. If you will perform duties, manage staff, provide services, meet clients or otherwise carry out business activity while in Thailand, establish the correct route before starting.
Share ownership and the right to work are separate. A shareholder or director may still need work authorisation when actively performing duties.
Check the occupation and actual duties
Thailand reserves or restricts a number of occupations for Thai nationals. Check the real duties, not only the job title, against the current Department of Employment list.
- Describe the actual work rather than relying on a broad job title.
- Compare those duties with the current prohibited-occupation rules.
- Identify any professional licence or sector approval needed in addition to a work permit.
- Make sure the approved description will match the work actually performed.
Choose the correct application route
Standard Employment Department route
Most ordinary private-sector applications go through the Department of Employment's e-WorkPermit service or the relevant employment office. The employer prepares company evidence; the worker provides identity, immigration, qualification and employment evidence.
BOI-promoted employer route
A BOI-promoted company may request approval for foreign expert positions and qualifications through BOI's Single Window process. Promotion supports this route but does not remove the need to complete the required immigration and work-permit steps.
Urgent and necessary work
The Department of Employment provides a notification route for qualifying urgent and necessary work lasting no more than 15 days. It is not a general exemption for short assignments. Confirm eligibility and make the required notification before relying on it.
Other special routes
Treaty, government, diplomatic, regional skills-recognition and other special categories can use different evidence and procedures. Follow the checklist issued for the specific route rather than combining requirements from unrelated applications.
Check employer readiness
Depending on the route, officers may examine:
- current company registration and authorised signatories;
- shareholders, foreign ownership and paid-up capital;
- the nature of the business and the proposed role;
- tax, VAT, financial statement and Social Security records;
- Thai and foreign employee information;
- the workplace and evidence of genuine operations;
- sector licences and BOI documents where applicable.
Requirements and exemptions vary, so do not treat one capital or employee ratio from an old article as universal.
Prepare the worker's evidence
The live checklist may request:
- passport identity and relevant visa or permission-to-stay pages;
- a current photograph in the required format;
- employment documents, job title, duties and work location;
- qualifications or experience evidence where required;
- medical certification if the current checklist calls for it;
- professional approval for a controlled occupation;
- previous permit details for a renewal, transfer or amendment.
Names, passport numbers, dates, employer details and job descriptions should agree across every document.
Follow the application sequence
- Define the role. Record the actual duties, employer, location and intended start date.
- Check restrictions. Resolve prohibited occupations, professional rules and sector licences.
- Choose the route. Identify the standard, BOI, urgent-work or other special route.
- Align immigration status. Confirm the visa or stay permission required by that route.
- Prepare the employer. Bring corporate, tax, workforce and workplace evidence up to date.
- Submit the current checklist. Use the instructed official system and retain the reference number.
- Wait for permission. Do not begin merely because the application has been submitted.
- Check the approval. Verify the employer, occupation, scope and validity period.
Stay compliant after approval
- Work only for the authorised employer and within the approved scope.
- Deal with material changes before they take effect.
- Track immigration and work-permit deadlines separately.
- Prepare renewals early enough to correct missing records.
- Follow the required process when employment ends or changes.
- Keep copies of applications, approvals and supporting evidence.
Working without authorisation or outside its scope can expose both worker and employer to enforcement. If the facts are unclear, obtain a written answer from the responsible authority or a qualified adviser before work begins.
Pre-application checklist
- Actual duties checked against prohibited occupations
- Employer, location and start date confirmed
- Correct standard, BOI, urgent-work or special route identified
- Immigration position aligned with the route
- Employer records and licences current
- Worker documents consistent
- Professional approvals ready where needed
- Renewal and change deadlines assigned
Verify the live requirements through the Department of Employment e-WorkPermit service, official prohibited-occupation guidance and the BOI foreign-expert procedure where relevant.