Non-Disclosure Agreement (NDA)

Notary Public reference — 12 document-specific answers

Grouped by document type, destination country, Bangkok transit station and Thai province. Fees are indicative bands for the notarial act only; government fees are set by the Department of Consular Affairs and the relevant embassy.

• Q5248. What do I need to bring to notarise a Non-Disclosure Agreement (NDA) in Bangkok?

  Notarised signing of an NDA between Thai and foreign parties, admissible as evidence in enforcement actions. Bring: ร่าง NDA · พาสปอร์ต/บัตรประชาชนผู้ลงนาม · หนังสือมอบอำนาจ (กรณีลงนามแทนบริษัท). Fee quoted per document before work starts (notarisation only; translation and consular/embassy legalisation are charged separately). Turnaround 1–2 ชั่วโมง. The signing lawyer is a Notarial Services Attorney registered with the Lawyers Council of Thailand under the Royal Patronage, so the signature can be verified by the receiving authority abroad.

• Q5250. How much does notarising a Non-Disclosure Agreement (NDA) cost and how long does it take?

  Fee quoted per document before work starts (notarisation only; translation and consular/embassy legalisation are charged separately), normally completed within 1–2 ชั่วโมง. The band reflects page count and the number of signatories. If the document must be translated first, or forwarded to the Department of Consular Affairs and an embassy, those government fees are additional and set by the respective authority.

• Q5252. Is notarisation alone enough for a Non-Disclosure Agreement (NDA), or is consular legalisation needed?

  In most cases the notarial certificate alone is accepted, because the receiving party (USA, UK, Singapore, Germany, Japan, Hong Kong) only needs the signatory's identity or a true-copy attestation verified. If the recipient is a foreign government body, ask them whether a consular layer is required. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026 and it enters into force on 28 February 2027; until then the destination embassy step still applies.

• Q5502. How do I get a Non-Disclosure Agreement (NDA) accepted in USA?

  Start with notarisation of the signature or true copy (1–2 ชั่วโมง). Recipients in USA generally accept the notarial certificate directly, with no consular layer. Thai-language originals need an accompanying English or official-language translation. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026 and it enters into force on 28 February 2027; until then the destination embassy step still applies.

• Q5504. How do I get a Non-Disclosure Agreement (NDA) accepted in UK?

  Start with notarisation of the signature or true copy (1–2 ชั่วโมง). Recipients in UK generally accept the notarial certificate directly, with no consular layer. Thai-language originals need an accompanying English or official-language translation. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026 and it enters into force on 28 February 2027; until then the destination embassy step still applies.

• Q5506. How do I get a Non-Disclosure Agreement (NDA) accepted in Singapore?

  Start with notarisation of the signature or true copy (1–2 ชั่วโมง). Recipients in Singapore generally accept the notarial certificate directly, with no consular layer. Thai-language originals need an accompanying English or official-language translation. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026 and it enters into force on 28 February 2027; until then the destination embassy step still applies.