A national of Singapore applying for an extension of stay — how should the supporting documents be translated and certified?

What the enquirer needs to know is “A national of Singapore applying for an extension of stay”, so it separates what is specific to this file from the standard certification chain. The next step is confirming the filing channel and the copy or file format required. When several certification layers are required, start with the slowest one. Leave buffer time in case a translation has to be amended or a source document re-issued. Attach a document index to the bundle so nothing is lost during review. Note who signed each certification and on what date for later reference. The biggest risk in cases like this is doing the certification steps out of order, which forces a restart. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. Before starting, plan the timeline so certification finishes before the real filing deadline, then ask in advance which category of certified translator the destination accepts, then make sure document numbers, issue dates and issuing-office names match across the set. The specifics here are destination: Sg, and those decide which translation and certification level applies. The terms that frame this page are national · Singapore · applying · extension. Supporting documents issued abroad — police clearance, marriage and birth certificates, qualifications or financial papers — normally need translation into Thai or English by an accountable translator and the certification the receiving office specifies, usually legalisation at the Department of Consular Affairs and/or the issuing country's embassy. On Apostille: Thailand deposited its instrument of accession on 30 June 2026, but the Convention is not yet in force for Thailand, so the working route is still consular legalisation — the Department of Consular Affairs first, then the destination embassy. Fees and scheduling depend on the number of documents, the source language, which authority must certify them and the destination country; we confirm scope in writing before starting. Send the checklist you were given, the applicant's nationality and the post or office you will file with 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