WP.31 Work Permit Application on behalf of a Foreigner under Section 41 Paragraph 4 — Thailand

WP.31 (แบบ บต.31) is the Thai Department of Employment (DOE) "Work Permit Application Form for application made on behalf of a foreigner pursuant to Section 41 Clause 4".

It is filed by a licensee — a company licensed to bring foreigners to work for employers in Thailand. The form is bilingual (Thai and English) and has 4 pages.

• the licensee (recruitment agency) — itself through its authorized signatory, or through its employee holding a power of attorney;
• the form goes to the Department of Employment — in Bangkok the office for foreign workers, in other provinces the provincial employment office; check with DOE which office handles your case;
• the deadline, fee and processing time are not stated on the form — check them with the office.

• licensee: name, authorized signatory, licence number, date of issue and validity; how the application is made and, with a power of attorney, the employee's details and the date of the power of attorney;
• foreigner: title, name, nationality, date of birth, age, passport or document in lieu of passport (number, issuer, country, dates);
• type and nature of work, the employer and its address, the place of work, the duration applied for (years, months, days).

• a copy of the foreigner's passport (or document in lieu of passport);
• the employment certification by the soon-to-be employer stating the reason for not employing a Thai national;
• three 3 x 4 cm photographs of the foreigner;
• a copy of the licence to bring foreigners to work and a copy of the contract with the employer;
• employer documents: for a natural person — an ID document (or passport, or certificate of residence) and, if any, the business licence; for a juristic person — the registration document showing the business category;
• if the foreigner will work as a shop assistant — commercial documents, the income tax return and proof of employing Thai workers;
• when filed through a power of attorney — a copy of the employee identification card and the power of attorney.

After entering Thailand, the foreigner also submits a copy of the proof of permission to enter, a medical certificate and a copy of the employment contract (items 4.8–4.10). The office may ask for other documents — check in advance.

1. Open the chat on this page and tell it about the agency, the worker and the employer.
2. Answer the questions or send a photo of the passport — the assistant fills the boxes and ticks the attachments.
3. Check the fields and download the PDF.
4. Print it, attach the photo, sign and submit it with the attachments at the employment office.

Official WP.31 form on the Department of Employment website: doe.go.th (PDF); foreign workers section: doe.go.th/alien. Checked on 2026-10-08. This is not legal advice.