A work permit through the BOI One Stop Service channel — what should you know about document translation and certification?

The point raised here is “A work permit through the BOI One Stop Service channel”, so it deals with the case-specific points first and the shared rules afterwards. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. Record the reference number of each certification layer; it is the fastest way to trace status. Attach a document index to the bundle so nothing is lost during review. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. For documents going abroad, include international shipping time in the plan. Before starting, count the number of certified sets needed before work starts, because extra sets restart the certification steps, then verify the source document is still within any validity window the recipient applies, then check that names are spelled identically to the passport or ID card on every page. What changes the timeline most here is whether the source documents are complete on day one. The biggest risk in cases like this is doing the certification steps out of order, which forces a restart. The terms that frame this page are work · permit · through · Stop. Foreign documents used in a work permit or incorporation file — degrees, experience letters, the parent company's certificate of incorporation, powers of attorney and passports — must be translated into Thai or English as the office requires and certified along the correct chain: certification in the country of origin, then embassy or Department of Consular Affairs legalisation as applicable. Thailand deposited its instrument of accession to the Apostille Convention on 30 June 2026, but the Convention is not yet in force for Thailand, so embassy and Department of Consular Affairs legalisation remains the working route. ILC handles the document side only — certified translation, notarial signature certification and legalisation runs at the Department of Consular Affairs or an embassy. ILC is not the deciding authority and cannot guarantee an approval. Cost and lead time depend on page count, language pair and the certification steps the receiving authority requires, so every file is quoted before work starts. Send the checklist you were given, the applicant's nationality and the office you will file with via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

ปรึกษาฟรี — LINE @NAATI · โทร 080-5578887 · อีเมล ilc@thainotary.co.th