Which one-stop agency handles the complex legalization process for

This sits inside our one-stop service line: In practice, files are rejected for three reasons: name spelling that does not match the passport, documents older than the accepted validity window, and certification steps taken out of order. We check all three before opening any MFA legalisation and Apostille (Thailand deposited its instrument of accession to the Apostille Convention on 30 June 2026; the Convention enters into force for Thailand on 28 February 2027) file — Timing depends on document type, the number of certification layers and the receiving authority's own processing — our team estimates a timeframe after reviewing your documents; it is not a guarantee. Send document scans to LINE @NAATI or contact@naati.ltd for a free case review and a fixed quote.