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WP.45 Request to Change or Add Type of Work in a Work Permit (Categories 2 and 3) — Thailand

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How it works

  1. 1

    Describe the change

    Tell the chat which type of work you want to change or add, and under which category.

  2. 2

    Check the fields

    The assistant fills in your permit, employer and workplace details and ticks the attached documents.

  3. 3

    Download the PDF

    Print, sign and submit with the photos and supporting documents at the employment office.

About the document

Country:
Thailand
Category:
Work permits
How to fill:
Chat in any language → original form → PDF
Price:
from 15 credits
Last updated:

What this document is

WP.45 (บต.45) is a foreigner’s request to the Department of Employment (DOE), Ministry of Labour, to change particulars of a work permit when the type of work is changed or a type of work is added under Category 2 or Category 3 appended to the Ministry of Labour notification on work prohibited for foreigners dated 1 April 2020.

Under that notification, Category 2 covers work that foreigners may do only under international agreements or obligations of Thailand, and Category 3 covers work that foreigners may do only with an employer. Check with DOE which category your work belongs to.

The form is bilingual (Thai and English) and has 3 pages: details of the foreigner and the current work permit, employer and place of work, the requested change, the checklist of attachments, the signature and a section for official use only.

Who files it and where

  • a foreigner holding a Thai work permit whose type of work under Category 2 or 3 changes or needs to be added;
  • the form is submitted to the Department of Employment — in Bangkok the DOE office for foreign workers or an area employment office, in other provinces the provincial employment office; check with DOE which office handles your permit;
  • the fee and processing time are not stated on the form — check them with the office.

What the form asks for

  • title, name, nationality, type of foreigner and the 13-digit foreigner ID (if any);
  • work permit number, province, date of issue and expiry;
  • address in Thailand, telephone, fax and e-mail;
  • whether the employer is the same as in the work permit or new, employer name and address, place of work;
  • the change requested under Category 2 and/or Category 3 — change from one type of work to another, or add a type of work; for Category 2 the professional licence details if the work requires one;
  • other changes to the permit, if any, and the reason; date of signing.

Documents to attach (checklist in section 4)

  • a copy of the foreigner’s identity document (usually the passport);
  • a copy of the professional licence or certificate, if the work legally requires one;
  • the work permit;
  • two 3×4 cm photographs;
  • copies of documents proving that the change actually took place;
  • employer documents: for a natural person — a copy of the identity document and, if any, of the business licence; for a juristic person — a copy of the registration certificate showing the business category.

The office may ask for additional documents — check with it before submitting.

How to fill it in with FoxDocs

  1. Open the chat on this page and say which type of work you want to change or add.
  2. Answer the questions or send photos of your passport and work permit — the assistant fills the boxes and ticks the attached documents.
  3. Check the fields, download the PDF, print, sign and submit it with the attachments at the employment office.

Source

Official WP.45 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.

Frequently asked questions

What is form WP.45 for?

To change particulars of a Thai work permit when the type of work under Category 2 or Category 3 is changed or a type of work is added.

What are Category 2 and Category 3?

They are lists appended to the Ministry of Labour notification of 1 April 2020: Category 2 — work allowed for foreigners only under international agreements or obligations of Thailand; Category 3 — work allowed only with an employer. Check with DOE which category applies to your work.

Where do I submit WP.45?

To the Department of Employment: in Bangkok, the office for foreign workers or an area employment office; in other provinces, the provincial employment office. Check with DOE which office handles your permit.

Which documents do I need?

According to the checklist on the form: a copy of your identity document, the work permit, two 3×4 cm photos, proof of the change, a professional licence if the work requires one, and the employer’s identity or registration documents.

How much does it cost and how long does it take?

The form does not state the fee or processing time. Check the current amount and timing with the employment office.

Can I change other details of the permit at the same time?

Yes, the form has a section for other changes to the permit with the old entry, the new entry and the reason. The office decides whether the change is accepted.

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