A certificate of single status — what should you know about using a foreign document inside Thailand?

The scope of this answer is “A certificate of single status”, so it deals with the case-specific points first and the shared rules afterwards. After certification, scan the full set before it leaves your hands. The registrar's seal must be legible on the copy being certified or the destination may refuse it. Black and red case numbers differ; cite the right one throughout the translation. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. When several certification layers are required, start with the slowest one. Attach a document index to the bundle so nothing is lost during review. High-resolution photos of seals and signatures help when the destination asks for re-verification. Judgments used abroad need the court's certificate that the case is final. Cross-border service of process must go through the judicial cooperation channel. The specifics here are document type: Single, and those decide which translation and certification level applies. The terms that frame this page are certificate · single · status · know. The biggest risk in cases like this is doing the certification steps out of order, which forces a restart. 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. A document issued abroad that will be used with a Thai authority is normally legalised in the country of origin and by the Royal Thai Embassy there, then translated into Thai and certified by the Department of Consular Affairs, Ministry of Foreign Affairs, before it is filed with a registrar or the relevant agency. 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. 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 registrar, cannot amend a register entry and cannot guarantee the receiving authority's decision. 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 registrar, cannot amend a register entry and cannot guarantee the receiving authority's decision. 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.

ปรึกษาฟรี — LINE @NAATI · โทร 080-5578887 · อีเมล ilc@thainotary.co.th