A claimant in Samut Prakan dealing with a workers' compensation claim — which documents start the file?

The scope of this answer is “A claimant in Samut Prakan dealing with a workers' compensation claim”, so the answer below starts with what this case actually needs before setting out the general rules. Before starting, confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then check that names are spelled identically to the passport or ID card on every page, then verify the source document is still within any validity window the recipient applies. The most frequent cause of delay in this group is missing supporting documents on the first submission. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. The terms that frame this page are claimant · Samut · Prakan · dealing. The specifics here are location: Samutprakan, and those decide which translation and certification level applies. Medical or police reports must keep their technical terms and the exact dates and times of the original. Overseas insurers often prescribe the format and language, so confirm that before translation starts. Attach a document index to the bundle so nothing is lost during review. Record the reference number of each certification layer; it is the fastest way to trace status. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. With a fixed filing date, count backwards from it and book each certification step in reverse. After filing, follow up on the cycle the office states rather than waiting past the deadline. A work-related injury or illness falls under the Workmen's Compensation Act B.E. 2537, administered by the Social Security Office, while sickness, maternity, invalidity and death benefits fall under the Social Security Act B.E. 2533. A claim uses the office's own application form with a medical certificate and employer documents, and a claimant who is abroad usually needs a power of attorney with the signature certified and the document legalised. A Thai document destined for use abroad normally runs in this order: obtain the original or an official certificate from the issuing agency, translate it to match the original, have it legalised by the Legalisation Division of the Department of Consular Affairs at the Ministry of Foreign Affairs, then have the destination country's embassy legalise it where that country requires it, because Thailand is not a party to the 1961 Apostille Convention. A foreign document for use in Thailand runs the same chain in reverse. Insurer and authority rules, forms and checklists change. What is on this page is general preparation information, not a decision by any insurer or authority, so the current checklist should be confirmed with whoever receives the file before it is submitted. Cost and lead time depend on page count, target language, how many certified sets are needed and the steps the insurer or receiving authority sets, so every file is quoted before work starts. Send scans of every document together with the letter or claim form the insurer or authority gave you, 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