Notary Public Services in Thailand

Thailand has no civil-law notary — and why that changes the paperwork

Thailand never adopted the Latin notariat. There is no public officer here equivalent to a German Notar or a French notaire. What exists instead is the Notarial Services Attorney: a lawyer licensed by the Lawyers Council of Thailand under the Lawyers Act B.E. 2528 (1985) who has completed the Council's notarial services course and holds a current registration number.

The practical consequence is that a Thai notarial certificate attests to acts the attorney personally witnessed or verified — a signature executed in their presence, a copy compared against an original, an oath or affirmation administered, a translator's declaration taken. It does not create a self-proving public instrument in the civil-law sense, and no Thai notarial act converts a private document into a public one.

Foreign counterparties frequently ask for 'a notarised and apostilled document'. Until Thailand's accession to the HCCH Apostille Convention enters into force on 28 February 2027, no Thai apostille exists. The working chain remains notarisation by a Notarial Services Attorney, certification by the Department of Consular Affairs of the Ministry of Foreign Affairs, and then legalisation by the destination country's embassy in Bangkok where that country requires it.

What the attorney can and cannot certify

Three routes for using a Thai document abroad — and how to choose

Almost every rejection we are asked to fix comes from picking the wrong route, or running the right route in the wrong order. There are only three, and the receiving authority — not the sender — decides which one applies.

Ask the destination office one question in writing before anything is signed: does it accept a notarial certificate alone, does it require legalisation by its own embassy in Bangkok, or will it require an apostille once Thailand's accession takes effect on 28 February 2027? The written answer is what we build the file around.

• Translate after the original is certified, never before, or the translation certifies a document that no longer matches the file
• Copies must be compared against an original; a copy of a copy cannot be certified at any stage of the chain
• Documents issued by a Thai government office often go to the consular stage directly, without a notarial certificate first
• Where the destination gives a freshness window — commonly three to six months — count backwards from its deadline before starting

Preparing for a notarial appointment

1. Send the draft before you attend: We read the document against the destination's formal requirements. Signature blocks that omit a witness line, or that name a capacity the signer does not hold, are corrected on paper rather than on the day.
2. Bring originals and current identification: Passports must be unexpired. For corporate signatories we need the company affidavit issued by the Department of Business Development, generally within the freshness window the counterparty specifies.
3. Sign only in the attorney's presence: A pre-signed page cannot be witnessed after the fact. If a document arrives already signed, the correct remedy is re-execution, not a back-dated certificate.
4. Confirm the downstream chain: Whether the document then needs MFA certification, embassy legalisation, or neither, depends entirely on the receiving authority. We confirm this in writing before the appointment closes.
5. Keep the register reference: Each act is recorded with a register entry. If the receiving authority later queries authenticity, that reference is what allows verification.

Where notarised Thai documents are most often used

• University applications and credential verification for study abroad, where the institution requires certified copies of Thai transcripts and degree certificates.
• Powers of attorney for property, banking or litigation in a foreign jurisdiction, executed in Bangkok by a person who cannot travel.
• Corporate resolutions, director signature verifications and shareholder consents required by an overseas registry or bank.
• Parental consent letters for a minor travelling or relocating abroad, usually paired with the household registration and birth certificate.
• Declarations of single status, income statements and sponsorship affidavits attached to family-based visa applications.
• Signature verification on inheritance and estate paperwork where the heir is resident in Thailand and the estate is administered overseas.

Common mistakes and how we avoid them

More questions we are asked

Is a Notarial Services Attorney recognised abroad?

Recognition depends on the receiving authority, which normally satisfies itself through the Ministry of Foreign Affairs certification and, where applicable, its own embassy's legalisation, rather than by inspecting Thai professional rules directly.

Can you notarise a document written only in Thai?

Yes. Where the receiving party reads only English or another language, we pair the notarial act with a certified translation and a translator's declaration witnessed at the same appointment.

Do both spouses need to attend for a joint declaration?

Every person whose signature is being witnessed must attend personally. Where one spouse is overseas, we usually split the instrument into two parallel declarations.

How long is a notarial certificate valid?

Thai practice sets no expiry, but receiving authorities commonly refuse certificates older than three to six months, so timing should follow the destination deadline.