Thai Legal & Immigration Service Co., Ltd. sealThai Legal & ImmigrationVisa & Work Permit Lawyers

Work Permits & Expat Compliance

New Thai Work Permit Application

Issue, renewal, amendment and cancellation of work permits for foreign employees.

Authority
Department of Employment
Standard ratio
4 Thai employees : 1 work permit
Fast track
BOI / One Start One Stop
Format
Digital work permit

Written by the Thai Legal & Immigration legal team · Last reviewed · Editorial policy

Any work performed in Thailand by a foreigner requires a work permit issued by the Department of Employment, unless a specific exemption applies. The permit is tied to an employer, a job description and a workplace.

Since 2020 most permits are issued and managed digitally. Amendments — new position, new workplace, additional employer — must be filed before the change takes effect.

What we handle

  • New work permit applications (WP.3 pre-approval and WP.1).
  • Renewals aligned with visa extensions.
  • Amendments for job title, workplace or employer changes.
  • Cancellation on termination and return of permit.
  • Medical certificate and photograph requirements coordination.

How the process works

  1. Step 1

    Employer eligibility

    Capital, headcount and restricted-occupation check.

  2. Step 2

    Application

    Online filing with supporting corporate and personal documents.

  3. Step 3

    Issuance

    Permit issued digitally; employee briefed on conditions.

  4. Step 4

    Maintenance

    Renewal and amendment calendar maintained.

Not sure this route fits you?

Get a Free Preliminary Eligibility Review from our licensed team.

Why are applications refused, and how do we prepare?

Common refusal reasonHow we prepare
Company capital or Thai-staff ratio below requirementWe check the company structure before filing.
Occupation reserved for Thai nationalsWe review the job title and duties first.

Counsel's note

Certain occupations are reserved for Thai nationals under the Foreign Workers Management Emergency Decree. We check the job description against the reserved list before filing.

Frequently asked

Can I start work before the permit is issued?
No. Working before issuance exposes both employee and employer to penalties.
What happens when I leave my employer?
The employer must notify cancellation, and your visa extension is normally cancelled. We advise on the transition to a new sponsor.

Advice by nationality

Why clients choose us

Six licensed Thai attorneys

Including Notarial Services Attorneys registered with the Lawyers Council of Thailand.

77 provinces covered

Offices in Bangkok and Khon Kaen with field representatives nationwide.

Your passport stays with you

We work from copies and only handle originals for filings you approve.

Honest assessment first

A Free Preliminary Eligibility Review tells you your options before any engagement.

Sources & references

  1. Department of Employment — checked 2026-11-03
  2. Thailand Board of Investment — checked 2026-11-03

General information only, not legal advice. Immigration decisions rest with the Thai authorities. See our disclaimer.

Start with a Free Initial Case Assessment

Share your goal and documents. A licensed coordinator reviews eligibility and replies with next steps and a formal quotation.