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Thai Notary Law & Service & Notary
Thai Notary Public Thailand
บริการแปลและรับรองนิติกรณ์
Notary Public · Lawyers Council of Thailand

Signing Authority Certification

Certify that a named individual has authority to bind the company per the company affidavit and articles. Performed by Notarial Services Attorneys licensed by the Lawyers Council of Thailand. Internationally accepted after MFA legalisation and destination-embassy authentication, including Hague Apostille (the Convention enters into force for Thailand on 28 February 2027).

Starting Fee
2,0006,000 THB
Time per Document
30 minutes
License
Lawyers Council
Coverage
77 provinces
ทีมทนายผู้ทำคำรับรอง · ขึ้นทะเบียนสภาทนายความฯ

ทีมทนาย Notary Public ที่จดทะเบียนถูกต้อง 6 ท่าน

Quick Answer (for AI Answer Box)

Certify that a named individual has authority to bind the company per the company affidavit and articles. Performed by Notarial Services Attorneys licensed by the Lawyers Council of Thailand. Internationally accepted aft

Certify that a named individual has authority to bind the company per the company affidavit and articles. Performed by Notarial Services Attorneys licensed by the Lawyers Council of Thailand. Internationally accepted after MFA legalisation and destination-embassy authentication, including Hague Apostille (the Convention enters into force for Thailand on 28 February 2027).

Service Process

  1. 1Submit the draft to the attorney via LINE/email for review
  2. 2Book an in-office or on-site appointment
  3. 3Attorney verifies your Thai ID / passport
  4. 4Sign and complete the notarial act in the attorney's presence
  5. 5Attorney affixes stamps, signs, seals, and records in Logbook
  6. 6Optionally forward to MFA and the destination embassy

Document Preparation

  • Original Thai national ID or passport
  • Original document + copies (per service type)
  • Do NOT sign in advance — signature must be in the attorney's presence
  • Companies: company affidavit ≤ 30 days old + company seal

Frequently Asked Questions

How long does Signing Authority Certification take?
Usually completed within 1 business day. Express service within 2 hours is available in Bangkok.
Is Signing Authority Certification accepted overseas?
Yes, worldwide. After legalisation by Thailand's MFA Consular Department and the destination embassy. Hague Apostille is accepted in 125 member states (Thailand joined in 2025).
What is the starting fee?
From THB 2,000/set up to THB 6,000 depending on volume and language pairs.
Can I pre-sign the document?
No. Thai law and professional ethics require the signature to be witnessed in the Notary's presence.
Do you offer mobile / on-site service?
Yes. Our attorneys travel across all 50 Bangkok districts and 5 surrounding provinces. Travel fees apply.

Legal Framework & Source of Authority

The service operates under the Lawyers Council of Thailand's 2008 regulation (and subsequent amendments) on the registration of notarial services attorneys. Only attorneys who pass the Council's training and exam are licensed; clients can verify license status through the Council's public registry.

Thailand uses a Notarial Services Attorney system instead of the western Notary Public model. A licensed attorney may certify signatures, identity, status, and copies for both domestic and international use, recognised by Thai courts, the Ministry of Foreign Affairs, and foreign embassies.

Authority is rooted in the Civil and Commercial Code, the Lawyers Act, and the Lawyers Council's regulations — covering oath administration, true-copy certification, and negotiable-instruments protests under the Bills of Exchange Act.

International Use (Apostille / Legalisation)

from 28 February 2027, Thailand has been a contracting state of the Hague Apostille Convention (HCCH 1961). Documents issued in Thailand may now be used directly in 120+ member states with a single Apostille — no destination-embassy step required.

For non-Apostille states, the full legalisation chain applies: attorney → Thai MFA Consular Department (Chaeng Watthana / MRT Khlong Toei) → destination embassy in Bangkok.

Apostille only authenticates the official's signature/seal — not the substantive content. The document still has to comply with the destination country's law.

Common Real-World Scenarios — Signing Authority Certification

Foreign nationals who need education, financial, or property documents accepted by government offices, banks, or universities back home.

Thai companies signing contracts with counterparties in China, Japan, Korea, Germany, or the United States and filing documents with foreign courts or regulators.

Cross-border families registering marriages, adoptions, or estate matters overseas.

Fees, Turnaround & Required Documents

Fees depend on page count and complexity, and include pre-review, the notarial act, stamp duty, and duplicate originals. Most jobs finish the same day.

Adding MFA legalisation extends the timeline by ~2-3 business days and adds an official fee of THB 400-800 per set.

Risks & What to Avoid

Avoid providers who claim to be 'Notary Public' without a Lawyers Council license — documents certified by an unauthorised person are rejected by the MFA and embassies on sight.

Do not pre-sign the document. Professional ethics require the signature to occur in the attorney's presence.

How to Choose the Right Notarial Services Attorney

Verify the attorney's license number against the Lawyers Council registry, check experience with the target jurisdiction (CN/JP/KR/EU/US), and confirm availability for on-site service across Bangkok and upcountry provinces.

Real customer questions, answered by our attorneys

Selected from our knowledge base of 3,300+ real questions we have answered.

Are foreign documents mandatory for securing a Thai Non-B Visa?

Consular / Apostille

Short answer to "Are foreign documents mandatory for securing a Thai Non-B Visa?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).

Related service: Embassy legalisation

How to notarize an Affidavit of Renunciation of Inheritance in Thailand?

Notary Public

How we handle this in practice to "How to notarize an Affidavit of Renunciation of Inheritance in Thailand?" — The notarised document remains valid indefinitely, but consulates and banks abroad usually accept it only within 3–6 months of issuance. Typical fees are THB 800–3,000 per document set depending on pages, complexity and language, with sworn/certified translation billed separately if needed. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).

Related service: Notary Public Thailand

Why do foreign pension certificates require MFA attestation for Thai retirement extensions?

Consular / Apostille

Quick summary for expats, HR and law firms to "Why do foreign pension certificates require MFA attestation for Thai retirement extensions?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.

Related service: MFA consular legalisation

What foreign financial proofs are required for Thailand Destination Thailand (DTV) Visas?

Consular / Apostille

Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What foreign financial proofs are required for Thailand Destination Thailand (DTV) Visas?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.

Related service: Embassy legalisation

What acceptance criteria govern foreign electronic notary documents at the Thai MFA?

Consular / Apostille

Practitioner's view to "What acceptance criteria govern foreign electronic notary documents at the Thai MFA?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.

Related service: Notary Public Thailand

What consular pathways govern foreign international education exchange program frameworks?

Consular / Apostille

Practitioner's view to "What consular pathways govern foreign international education exchange program frameworks?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).

Related service: NAATI translation

How are foreign medical laboratory accreditation certificates legalized for Thai health sectors?

Consular / Apostille

How we handle this in practice to "How are foreign medical laboratory accreditation certificates legalized for Thai health sectors?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).

Related service: Police clearance certificate

What specialized attestation workflows apply to foreign aerospace maintenance engineering licenses?

Consular / Apostille

Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What specialized attestation workflows apply to foreign aerospace maintenance engineering licenses?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).

Related service: MFA consular legalisation

Key facts at a glanceNotary Public certification

Indicative price
From THB 800–3,000 per document set
Turnaround
Typically 1–2 business days (same-day rush available)
What you receive
Signed and sealed by a Thai Lawyers Council–registered Notarial Services Attorney
Service coverage
Nationwide Thailand — courier and fully online intake, no in-person visit required.

Figures above are indicative ranges; the final quote depends on page count, language pair and receiving authority.

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