Notarisation of Affidavit and Statutory Declaration — Thailand (2026)

Confirms facts to overseas authorities — single status, family relationship, income, financial support, or explaining differing name spellings across documents.

A draft declaration in English with the facts set out in numbered paragraphs · Original passport or Thai ID card · Supporting documents referred to in the declaration (house registration, birth certificate, bank statements)

Administering the oath or affirmation and witnessing the deponent's signature

Vague or opinion-based wording — the attorney certifies the oath, not the truth of the facts · Failing to attach the exhibits the declaration refers to · Confusing it with the certificate of single status issued by a district office, which is a different document

Many recipients accept the notarised declaration directly; for official use abroad, add MFA legalisation and destination embassy attestation.

Same-day notarisation, with a free draft review before your appointment. 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.