Submitting a Thai national identity card to Singapore — how must it be translated and certified?

The scope of this answer is “Submitting a Thai national identity card to Singapore”, so the answer below starts with what this case actually needs before setting out the general rules. Cross-border service of process must go through the judicial cooperation channel. Settlement agreements must be translated clause by clause with nothing dropped. With a fixed filing date, count backwards from it and book each certification step in reverse. Documents with a short validity window should be produced as close to the filing date as possible. If the receiving body confirmed its requirements by email, keep that message with the file. Keep a copy of every source document plus the receipt or docket from each step. The point to fix before starting is the real deadline, so the steps can be scheduled backwards from it. The condition most often overlooked is that name spelling must match across every document in the set. Before starting, make sure document numbers, issue dates and issuing-office names match across the set, then keep a digital copy of every page, including seals and signatures, then plan the timeline so certification finishes before the real filing deadline. The specifics here are document type: Id; destination: Sg, and those decide which translation and certification level applies. The terms that frame this page are Submitting · Thai · national · identity. Attach the paid court-fee receipt to confirm the filing. Exhibits must be numbered to match the numbering used in the complaint. After certification, scan the full set before it leaves your hands. A Thai civil registration document for overseas use is normally translated into the language the destination requires, then legalised by the Legalisation Division, Department of Consular Affairs, Ministry of Foreign Affairs, and where required further legalised by the destination country's embassy or consulate. Most receiving authorities want a registrar-certified copy of the register rather than a photocopy made by the holder, because the certified copy carries the registrar's signature and seal that the Ministry of Foreign Affairs can verify; obtain a freshly issued certified copy before starting the translation and legalisation steps. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026, but the Convention is not yet in force for Thailand, so consular legalisation through the Ministry of Foreign Affairs and the relevant embassy remains the working route; confirm the current requirement with the receiving authority before filing. Cost and lead time depend on the number of documents, the language pair and the certification steps the receiving authority requires, so every file is quoted before work starts. Send a scan of the documents together with the receiving authority's own instructions via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

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