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Guide

Thailand Joins the Apostille Convention: What Changes on 28 February 2027

Thailand acceded to the Hague Apostille Convention on 30 June 2026, and the Convention enters into force for Thailand on 28 February 2027. Until then, foreign documents still need consular legalisation. From that date, documents from other member states should only need an apostille, while documents from non-member countries still need legalisation.

Written by the Thai Legal & Immigration legal team · Last reviewed · Editorial policy

What is an apostille?

An apostille is a certificate issued by a competent authority in the country where a public document was issued. Among member states it replaces the chain of embassy legalisation.

What should I do before 28 February 2027?

Continue to legalise foreign documents — degree certificates, police records, birth and marriage certificates — through the issuing country's authorities and the Thai embassy or consulate. Do not rely on an apostille alone before the entry-into-force date.

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What changes from 28 February 2027?

Documents issued in another member state should be accepted with an apostille, without embassy legalisation. Translations into Thai may still be required, and individual agencies may publish their own procedures.

  • Work permits: degree certificates and police records.
  • Marriage registration: certificates of single status issued abroad.
  • Visa applications: birth certificates for dependants.

What about countries that are not members?

Documents from non-member states — for example Vietnam, Myanmar, Cambodia and Laos as of our last check — still need authentication and legalisation.

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Frequently asked

Can I use an apostille in Thailand now?
Not as a replacement for legalisation before 28 February 2027.
Do I still need a Thai translation?
Usually yes. Thai agencies normally require certified translations.
Is my country a member?
Check the HCCH status table linked below, or see our guides by nationality.

Sources & references

  1. HCCH Apostille Convention status table — checked 2026-11-03
  2. Department of Consular Affairs – MFA — checked 2026-11-03

General information only, not legal advice. Immigration decisions rest with the Thai authorities.

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