Notarisation of Inheritance and Estate Documents — Thailand (2026)

Used when a deceased person held assets, bank accounts or policies abroad and heirs living in Thailand must file with a foreign court or financial institution.

Death certificate with English translation · Proof of relationship: house registration, birth certificate or marriage certificate · The court order appointing the estate administrator, if any · The destination institution's or court's own forms

Witnessing heirs' signatures and administering declarations of heirship

Not all heirs sign as the destination requires · Translating the death certificate without the certification the recipient requires · Underestimating timelines, as legalisation and embassy steps take several days

Thai civil documents such as death certificates must be MFA-legalised before embassy attestation.

One working day to notarise; 5–10 working days for the complete legalised set. Fees are based on the number of documents and stamps, and you get a written quote before any work starts.

No. Thailand is not a party to the Hague Apostille Convention, so Thai documents intended for use abroad follow the legalisation route: certification by a notarial services attorney, then legalisation at the Department of Consular Affairs (Ministry of Foreign Affairs), then attestation at the destination country's embassy or consulate in Thailand. Check the current status with the HCCH and the Department of Consular Affairs before you act.

Thailand has no notary public office in the common-law sense. Instead, lawyers registered with the Lawyers Council of Thailand under its 2008 regulation act as Notarial Services Attorneys, and their certifications are the form accepted by foreign authorities.

Yes for signature certification — you sign in the attorney's presence with an original passport or Thai ID. For a certified true copy, the original document must be produced.