Notarisation of Corporate Documents — Thailand (2026)

Used to open corporate bank accounts abroad, register subsidiaries or branches overseas, execute cross-border contracts, bid on foreign tenders and file international trademark applications.

A DBD company affidavit issued within the last 3–6 months · ID or passport of the authorised signing director · The company seal where the affidavit requires it · English translations of the affidavit and shareholder list

True-copy certification and witnessing of the authorised director's signature

Not all directors sign as required by the signing authority in the affidavit · Relying on an affidavit older than the recipient bank allows · Leaving the shareholder list untranslated so the bank cannot verify the UBO

DBD-issued documents can be legalised directly at the MFA and then attested at the destination country's embassy.

One working day to notarise; 3–5 working days for the full 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.