A work permit for a foreign teacher or lecturer — what should you know about notarial signature certification?

The subject of this page is “A work permit for a foreign teacher or lecturer”, so the answer below starts with what this case actually needs before setting out the general rules. If the receiving body confirmed its requirements by email, keep that message with the file. Note who signed each certification and on what date for later reference. Once the set is complete, check it line by line against the destination's own checklist before filing. The terms that frame this page are work · permit · foreign · teacher. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. The point to fix before starting is the real deadline, so the steps can be scheduled backwards from it. Before starting, ask in advance which category of certified translator the destination accepts, then plan the timeline so certification finishes before the real filing deadline, then keep a digital copy of every page, including seals and signatures. Documents with a short validity window should be produced as close to the filing date as possible. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. Powers of attorney and declarations intended for use abroad are usually signed before a Notarial Services Attorney registered with the Lawyers Council of Thailand, then passed to the Department of Consular Affairs and the destination embassy for further legalisation. 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