Changing employer or position on a work permit — what should you know about the issuing authority?

The issue to settle here is “Changing employer or position on a work permit”, so it flags what usually causes documents like this to be rejected before summarising the general practice. Note who signed each certification and on what date for later reference. Attach a document index to the bundle so nothing is lost during review. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. Before starting, keep a digital copy of every page, including seals and signatures, then make sure document numbers, issue dates and issuing-office names match across the set, then ask in advance which category of certified translator the destination accepts. With a fixed filing date, count backwards from it and book each certification step in reverse. When several certification layers are required, start with the slowest one. The terms that frame this page are Changing · employer · position · work. What changes the timeline most here is whether the source documents are complete on day one. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. Work by foreign nationals in Thailand is governed by the Royal Decree on Managing the Work of Aliens B.E. 2560 (2017) as amended by Decree No. 2 B.E. 2561 (2018); work permits are issued by the Department of Employment, Ministry of Labour. A visa and a work permit are separate matters handled by separate agencies: permission to stay is decided by the Immigration Bureau, while permission to work is decided by the Department of Employment, so both must be maintained in parallel. 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