A VAT registration certificate (Por Por 20) — what should you know about the translation and legalisation sequence for overseas use?

The point raised here is “A VAT registration certificate (Por Por 20)”, so it deals with the case-specific points first and the shared rules afterwards. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. When several certification layers are required, start with the slowest one. For documents going abroad, include international shipping time in the plan. High-resolution photos of seals and signatures help when the destination asks for re-verification. Record the reference number of each certification layer; it is the fastest way to trace status. What sets this case apart is the number of certified sets and the window in which they must be used. 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. The specifics here are document type: Vat, and those decide which translation and certification level applies. The terms that frame this page are registration · certificate · know · translation. A Thai corporate 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 further legalised by the destination country's embassy or consulate where that country requires it. 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 destination before filing. Australian government agencies and financial institutions require non-English documents to be translated by a NAATI-certified translator showing the stamp and practitioner number; a corporate translation without the NAATI stamp is commonly rejected at the document-check stage. 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, auditor or tax adviser and cannot guarantee the decision of any authority or counterparty. Cost and lead time depend on page count, the language pair and the certification steps the destination requires, so every file is quoted before work starts. Send a scan of the documents together with the receiving authority's or counterparty'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