Thailand is not yet a Hague Apostille Convention member -- though it is actively moving toward accession -- so a Power of Attorney executed in Thailand currently still needs the older legalization chain: Thai Ministry of Foreign Affairs legalization, followed by attestation from the Embassy of India, Bangkok.
Thailand's pending Apostille accession, and the current legalization chain
Thailand is not yet a Hague Apostille Convention member. Thailand joined the Hague Conference on
Private International Law in March 2021, its Ministry of Foreign Affairs formally initiated accession
procedures by 2024, and the Thai Cabinet approved accession in principle around 9 December 2025 -- but as
of a mid-December 2025 legal-industry writeup, Thailand remained a non-party, with no instrument of
accession yet deposited. Estimates suggest the Convention could enter into force roughly 6-8 months after
deposit, though this platform treats this as an estimate rather than a confirmed date, and it could not
confirm which Thai authority will ultimately issue apostilles. Until accession is complete, the current
legalization chain remains in effect: a document is typically certified by a licensed Thai lawyer acting
as a Notarial Services Attorney (Thailand has no independent common-law-style notary public system), then
legalized by the Thai Ministry of Foreign Affairs' Legalization Division in Bangkok, and then attested by
the Embassy of India, Bangkok.
The current process, step by step
- Certification before a Thai Notarial Services Attorney, confirming the
signatory's identity and the document's content.
- Legalization at the Thai Ministry of Foreign Affairs, Legalization Division
(Department of Consular Affairs), Bangkok.
- Attestation by the Embassy of India, Bangkok, commonly handled through the
India Visa & Consular Application Centre (ICAC) -- a Power of Attorney, Affidavit, or Will
generally must be signed in person before a consular officer at the ICAC. The ICAC's own page cites
a processing time of generally 3-5 business days; this platform could not confirm current fees from
a primary source and recommends checking directly with the Embassy.
- Send the attested original to India.
Registration in India, and watching for the Apostille transition
The attestation process above does not complete matters on the Indian side. Under Section 17 of the
Registration Act, 1908, the POA itself still needs to be adjudicated for stamp duty and registered in
India before the transaction it authorizes can be completed. Given how actively Thailand's Apostille
accession is progressing, anyone planning a Thailand-connected transaction should confirm the current
authentication requirement close to the transaction date, since the process described here could change
once Thailand formally deposits its instrument of accession.
Common mistakes people connected to Thailand make with this process:
- Assuming Thailand already offers a single-step apostille, when as of this writing it remains a
non-Hague-member country still using the older legalization chain.
- Skipping the Thai Ministry of Foreign Affairs legalization step and going straight to the
Embassy of India for attestation.
- Using a General Power of Attorney when a Specific Power of Attorney would have been the safer,
more easily evaluated choice.
