Signature Verification (Proof of Identity)
Confirm that the signer is genuinely the named person — for identity verification before foreign institutions. 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).
ทีมทนาย Notary Public ที่จดทะเบียนถูกต้อง 6 ท่าน
Confirm that the signer is genuinely the named person — for identity verification before foreign institutions. Performed by Notarial Services Attorneys licensed by the Lawyers Council of Thailand. Internationally accepte
Confirm that the signer is genuinely the named person — for identity verification before foreign institutions. 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
- 1Submit the draft to the attorney via LINE/email for review
- 2Book an in-office or on-site appointment
- 3Attorney verifies your Thai ID / passport
- 4Sign and complete the notarial act in the attorney's presence
- 5Attorney affixes stamps, signs, seals, and records in Logbook
- 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
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 — Signature Verification (Proof of Identity)
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.
Book an Appointment
Real customer questions, answered by our attorneys
Selected from our knowledge base of 3,300+ real questions we have answered.
Does the Department of Consular Affairs in Chaeng Watthana directly legalize foreign-issued documents?
How we handle this in practice to "Does the Department of Consular Affairs in Chaeng Watthana directly legalize foreign-issued documents?" — 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: MFA consular legalisationWhat is the fundamental legal difference between traditional MFA document Legalization and an Apostille stamp?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What is the fundamental legal difference between traditional MFA document Legalization and an Apostille stamp?" — 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 legalisationWhat are the correct procedures for obtaining authentication at a Royal Thai Embassy abroad?
Quick summary for expats, HR and law firms to "What are the correct procedures for obtaining authentication at a Royal Thai Embassy abroad?" — 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: Embassy legalisationWhat physical security hallmarks identify genuine Thai MFA consular seals and ribbons?
Practitioner's view to "What physical security hallmarks identify genuine Thai MFA consular seals and ribbons?" — 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: MFA consular legalisationHow do international telecommunication spectrum license agreements undergo review?
Practitioner's view to "How do international telecommunication spectrum license agreements undergo review?" — 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 translationHow are multi-name change certificates for foreign nationals processed through the MFA?
How we handle this in practice to "How are multi-name change certificates for foreign nationals processed through the MFA?" — 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: NAATI translationHow are foreign marine archaeology and shipwreck exploration authorization documents legalized?
Practitioner's view to "How are foreign marine archaeology and shipwreck exploration authorization documents legalized?" — 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 legalisationHow do I process MFA legalization for foreign medical records required by Thai hospitals?
Practitioner's view to "How do I process MFA legalization for foreign medical records required by Thai hospitals?" — 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 legalisationKey facts at a glance — Notary 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.
Ask us or request a quote right away
Continue with related services
The paths most clients take next — ask us by phone, LINE or email at any step.
