Document Legalization for Thailand · Apostille from 28 February 2027

Thailand document preparation: identify the document, check the recipient’s request, confirm the submission route. — For Thailand, confirm the receiving organization’s instructions before arranging document services.

Embassy legalization now · apostille scheduled

Thailand: verified treaty status and dates

Hague Apostille Convention status: Joined — not yet in force
Date joined / legal act: Accession deposited: 30 June 2026
Entry into force: 28 February 2027
Application with Canada: Scheduled for 28 February 2027, subject to the Convention operating with Canada
Official future date: Officially scheduled entry into force: 28 February 2027. This is an effective date, not a forecast accession date.
Route for Canadian documents: Canadian authentication → Thailand embassy/consular legalization until 28 February 2027
Status checked: 30 October 2026

Does Thailand accept a Canadian apostille?

Not yet under the Convention. Thailand deposited its accession on 30 June 2026; the HCCH schedules entry into force for 28 February 2027. Until then, a Canadian apostille alone does not replace Thailand embassy legalization.

Embassy legalization for Thailand

Use the Thailand embassy/consular legalization route now where legalization is required. The apostille route is scheduled from 28 February 2027, subject to any objection affecting Canada.

Until the Convention takes effect, the Royal Thai Embassy in Ottawa requires an appointment for legalization and describes notarization followed by a Canadian apostille as preparation for embassy submission. That Canadian apostille does not yet remove the Thai embassy step.

Thailand embassy and consular contacts

Confirm document requirements, fees, appointments and the office responsible for your location directly with the relevant mission before sending documents.

The directory can include non-resident missions and honorary consulates. Confirm that the office provides the service you need.

Official sources for Thailand

Thailand apostille and legalization FAQs

Does Thailand accept a Canadian apostille?

Is embassy attestation required for Thailand?

Use the Thailand embassy/consular legalization route now where legalization is required. The apostille route is scheduled from 28 February 2027, subject to any objection affecting Canada.

When did Thailand join, or when will it start accepting apostilles?

Accession deposited: 30 June 2026. Entry into force: 28 February 2027. Officially scheduled entry into force: 28 February 2027. This is an effective date, not a forecast accession date.

Treaty record checked on 30 October 2026. HCCH table last updated: 30 June 2026.