Filing with a social security or workers' compensation fund in Japan — what translation and certification is expected?

The issue to settle here is “Filing with a social security or workers' compensation fund in Japan”, so it flags what usually causes documents like this to be rejected before summarising the general practice. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. Keep a copy of every source document plus the receipt or docket from each step. If the receiving body confirmed its requirements by email, keep that message with the file. Plan the schedule with room for at least one review cycle at the receiving office. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. Before starting, check that names are spelled identically to the passport or ID card on every page, then confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then count the number of certified sets needed before work starts, because extra sets restart the certification steps. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. The most frequent cause of delay in this group is missing supporting documents on the first submission. The terms that frame this page are Filing · social · security · workers'. The specifics here are purpose: Socialsec; destination: Jp, and those decide which translation and certification level applies. A Thai-issued medical document intended for a foreign authority normally follows this order: obtain the original from the facility, have it translated by a translator the destination accepts, certify the translation at the Legalisation Division, Department of Consular Affairs, Ministry of Foreign Affairs, then obtain the destination embassy's attestation where required. Each step verifies only what falls within its own authority. A medical translation must preserve the diagnosis, disease codes, drug names, dosages, units and result values exactly as written — no rounding, no unit conversion, no summarising. Where the original is illegible handwriting, the facility should be asked for a typed version or a written confirmation rather than the meaning being guessed. ILC handles document work only — translation, certification of the translation, notarial signature certification and the legalisation run at the Ministry of Foreign Affairs and embassies. ILC is not a medical facility or an insurer, gives no clinical advice, and cannot guarantee any authority's decision. Cost and lead time depend on page count, the density of clinical terminology, the target language and the certification steps required, so every file is quoted before work starts. Send scans of the medical paperwork together with the written requirements from the hospital, insurer or receiving authority 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