What a Thai Notarial Services Attorney (NSA) actually is
Thailand does not have Notaries Public in the civil-law European sense. Instead, the Lawyers Council of Thailand licenses selected practising lawyers as Notarial Services Attorneys (NSA) empowered to certify signatures, administer oaths, certify true copies, and issue notarial certificates recognised by most Common Law jurisdictions on a reciprocity basis. Each NSA holds a registration number, an official seal, and must record every act in a Notarial Register.
Legal basis and scope
The authority derives from the Lawyers Council Regulation on the Registration of Notarial Services Attorneys B.E. 2551, as amended. NSAs may perform: certification of signatures, certification of true copies, administration of oaths, affidavits, powers of attorney for overseas use, statutory declarations, and certificates of no impediment support letters. NSAs are frequently accepted by embassies in Bangkok for documents destined abroad.
Step-by-step workflow
Send us the document by email or LINE, along with a scan of the signer's ID or passport. We check which of the 66 notarial acts applies, quote a fixed price within 30 minutes, and book an in-person signing (or mobile notary within Bangkok metro). The lawyer verifies identity, witnesses the signature, applies the seal, and logs the act. Standard turnaround: 60–90 minutes on site.
Documents and identity evidence required
Original document; national ID (Thai) or passport with valid entry stamp (foreigner); company affidavit no older than 90 days plus board resolution when signing as an authorised person; draft wording for affidavits so counsel can align the jurisdiction clause; consent documents where minors or spouses are involved.
Why fees vary
Fees combine (a) the lawyer's professional fee, (b) drafting when the client has no template, and (c) mobile / after-hours logistics. Baseline notarial acts start at THB 1,500–3,000; complex affidavits, cross-border commercial contracts, and multi-signer packages price higher. Every quote is itemised — no hidden add-ons.
Common mistakes and how to avoid them
Sending a Thai-notarised document straight to a Hague Apostille country without first passing MFA legalisation is the number-one rejection cause. Other frequent failures: signing before meeting the notary, using an off-the-shelf affidavit that references the wrong jurisdiction, or asking for a certified true copy without producing the original.
Practitioner insight
Destination countries such as Germany, France, and Japan inspect the notarial certificate wording, seal placement, and signature block carefully. Attaching a copy of the notary's lawyer licence and a Bar Council attestation up-front prevents document rejection at the receiving end and shortens the round-trip by weeks.