How to Notarize Documents in Thailand — Full Guide 2026

บทนำ / Introduction

This guide explains how the Thai Notary Public system works, when you need it, and how to prepare documents for use abroad — for expats, foreign investors, and international businesses.

The Thai Notary system

Thailand does not have a state-run notary role. Instead, licensed attorneys registered with the Lawyers Council of Thailand as Notarial Services Attorneys perform notarial acts under regulation B.E. 2551.

Their signatures and seals are recognised by MFA Consular Affairs and, downstream, by foreign embassies and Apostille authorities after Thailand's accession to the Hague Convention (effective 28 Feb 2027).

What Thai notaries can certify

• Signature authentication (Signature Certification)
• Certified True Copy of originals
• Certification of translation accuracy
• Affidavits, Statutory Declarations, oaths
• Corporate resolutions and POAs

Cost and turnaround

Notarial fees follow the Lawyers Council schedule per document. MFA and embassy legalisation each add their own official fee per document — verify the current rates with each authority.

Choosing a notary in Thailand

Verify the attorney's Lawyers Council registration. NYC has 6 registered notaries at its Bangkok (Lat Phrao 95) and Khon Kaen offices, with English, Chinese, Japanese, Korean, Russian, Arabic and German support.

About NYC Visa & Translation

NYC provides end-to-end Notary + MFA + Apostille + Embassy legalisation services with 6 registered Notarial Services Attorneys, offices in Bangkok and Khon Kaen, and multilingual support in Thai, English, Chinese, Japanese, Korean, Russian, Arabic and German.

อ่านเพิ่มเติม

• บริการ Notary Public
• Notary Public (English)
• ราคา Notary Public
• FAQ Notary

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