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NPT Notary Public Thailand
บริการแปลและรับรองนิติกรณ์

Last reviewed: · by NPT Editorial Team

Reviewed by NPT Editorial TeamEditorial & Compliance TeamEditorially reviewed
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 (Thailand has been a contracting state since 2025).

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 (Thailand has been a contracting state since 2025).

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 130 Contracting Parties (Thailand joined in 2025).
What is the starting fee?
From Request a quote/set up to Request a quote 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 (entry into force for Thailand), Thailand has been a contracting state of the Hague Apostille Convention (HCCH 1961). Documents issued in Thailand may now be used directly in 130 Contracting Parties 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.

Key takeaways

  • Only attorneys registered with the Lawyers Council of Thailand under the Lawyers Act B.E. 2528 may certify
  • You must sign in front of the attorney and present an original passport or Thai ID card
  • Documents used abroad usually also require MFA Department of Consular Affairs legalization and/or destination-embassy endorsement
  • Procedures and timelines may change; verify with the responsible authority before filing

Process at a glance

StepPerformed byDocuments neededApproximate time
1. Review the file and confirm the certification formatNotarial Services AttorneyDraft document + receiving authority's requirementsapprox. 1–3 hours
2. Sign in the attorney's presenceSignatory with the Notarial Services AttorneyOriginal passport or Thai ID cardapprox. 15–30 minutes
3. Issue the certificate and record it in the registerNotarial Services Attorney (Lawyers Council of Thailand rules)Signed documentapprox. 1 working day
4. Onward steps for overseas useDepartment of Consular Affairs, MFA and/or destination embassyCertified document + translation where requiredapprox. 2–7 working days

Durations are estimates and depend on the responsible authority's queue. Always confirm current requirements with the receiving body before filing.

Additional frequently asked questions

What is needed to certify corporate documents?
Typically a company affidavit issued by the Department of Business Development within the recency window the recipient allows, ID or passport of the authorised director, the company seal if one is used, and the document to be attested. Scope and requirements are confirmed case by case by phone, LINE or email.
How long does an attested document stay valid?
The attestation itself has no expiry, but recipients such as embassies, banks and universities commonly require documents issued within the last 3–6 months. Always check the recipient's recency rule first.
What if the destination authority rejects the document?
Ask for the rejection reason in writing. Most rejections come from wording of the attestation clause, the order of the legalisation chain, or a translation that does not match the required format — each of which can be corrected without redoing the whole set.
Can the process be started from outside Thailand?
Document review, drafting the attestation wording and coordinating with authorities can all be done remotely. Only steps that legally require personal appearance must be completed before the attesting attorney or through a channel the destination accepts. Scope and requirements are confirmed case by case by phone, LINE or email.
Does Thailand have a Notary Public in the common-law sense?
Thailand has no common-law notary. The equivalent is a Notarial Services Attorney registered with the Lawyers Council of Thailand under Royal Patronage. Foreign authorities, embassies and universities generally accept this attestation where a notarised document is required. Scope and requirements are confirmed case by case by phone, LINE or email.
Do I have to sign in person before the attorney?
For signature attestation, yes — the signer must appear with an original passport or Thai ID card and sign in the attorney's presence. Certified true copies and certain fact attestations can be handled from originals without a fresh signature, depending on what the receiving authority requires.

How this connects to the next step

A notarised document rarely travels alone: most receiving authorities also require consular legalization at the Department of Consular Affairs (MFA), and for non-Hague destinations one further step of attestation by the destination country's embassy in Bangkok. The order of these steps cannot be swapped.

In depth: the real requirements and why documents get rejectedNotary Public

Written from the competent authority's published rules, not marketing copy.

Notarial work in Thailand is performed by lawyers registered with the Lawyers Council of Thailand who hold the notarial services endorsement. Verifying that the certifier's registration is current is a step the document owner can and should perform before discussing wording or scheduling.

Conditions you actually have to clear

  • When signing for a company, a recently issued company affidavit and evidence of signing authority consistent with the registered restrictions are required.
  • The certificate must state the date, the place, the signatory's name, the identification method, and the certifier's registration number; a missing element makes the certificate incomplete abroad.
  • Thai-language documents intended for foreign use need a translation permanently bound to the original rather than loosely attached.

Common causes of rejection

  • Using signature-witnessing wording when the destination asked for a certified true copy; the two forms are not interchangeable.
  • Name spellings that differ from the passport, even by a diacritic or the ordering of a middle name, are enough to justify refusal.

Once the destination country and the receiving office are known, the required certificate form and the following steps can be fixed immediately. Having our team review the case first substantially reduces repeat work.

Key facts at a glanceNotary Public certification

Indicative price
From Request a quote 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

Documents you need to prepareNotary Public certification

  1. 1Valid original passport or Thai ID card of the person signing
  2. 2The original document to be notarised — do not sign in advance; signing must occur before the attorney
  3. 3Details of the receiving authority — university, embassy, or overseas counterparty
  4. 4Company affidavit and power of attorney if signing for a legal entity

Before you start

  • Tell us early if you need a rush job so we can reserve attorney time and the courier slot.
  • Some documents have a limited acceptance window, so start the process close to your actual filing date.

Practitioner guidanceCertification by a Notarial Services Attorney

Competent authority: Lawyers Council of Thailand

Practitioner guidance

  • If the document is for overseas use, plan the next steps (MFA legalisation, Apostille or embassy) from the start.
  • For companies, bring a recent company affidavit and evidence of directors' signing authority.
  • Review how the foreign form expects the certifier to complete it before the appointment.
  • Thailand has no standalone Notary Public office; certification is performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand.
  • The signatory must sign in front of the attorney and present an original passport or Thai ID card.

Pitfalls — why documents get rejected

  • Describing the role as international 'Notary Public' when the Thai system uses a different designation.
  • Signing in advance — the attorney cannot certify a signature made out of their presence.
  • Presenting a passport copy instead of the original on the day.
  • Documents containing alterations or strike-throughs without initials.
  • Assuming attorney certification alone is accepted everywhere, when many countries require consular or embassy steps.

Official sources: www.lawyerscouncil.or.th · consular.mfa.go.th/th/publicservice/legalization

General guidance only. Requirements and processing times change — always verify with the competent authority before filing.

Unsure which route applies to your case? Ask our staff directly.

Contact / booking

  • notarial services attorney Bangkok document courier service

Service areas

  • notary public Thailand Bangkok
  • notary public Thailand Sathorn Silom
  • notary public Thailand Phuket
  • notarial services attorney Bangkok Bangkok
  • notarial services attorney Bangkok Sathorn Silom
  • notarial services attorney Bangkok Phuket

Compare options

  • notary public Thailand vs alternative

Can't find your exact case? Ask our staff directly — enquiries are free.

In-depth questions and answersCertification by a Notarial Services Attorney

Answers follow the competent authority's published requirements, not marketing copy.

What should a first-time applicant know about Certification by a Notarial Services Attorney?

Tell the attorney the destination country and authority in advance, since the certification wording differs by use. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What is commonly overlooked in Certification by a Notarial Services Attorney but affects the outcome?

If the document is for overseas use, plan the next steps (MFA legalisation, Apostille or embassy) from the start. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

How can a Certification by a Notarial Services Attorney document set be kept internally consistent?

For companies, bring a recent company affidavit and evidence of directors' signing authority. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

In what order should Certification by a Notarial Services Attorney steps be sequenced to avoid rework?

Review how the foreign form expects the certifier to complete it before the appointment. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Why are Certification by a Notarial Services Attorney documents rejected?

Observed cause: Signing in advance — the attorney cannot certify a signature made out of their presence. If you are unsure whether your case is affected, confirm with Lawyers Council of Thailand, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which mistake in Certification by a Notarial Services Attorney forces the process to restart?

Observed cause: Presenting a passport copy instead of the original on the day. If you are unsure whether your case is affected, confirm with Lawyers Council of Thailand, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What is a common misunderstanding about Certification by a Notarial Services Attorney?

Observed cause: Documents containing alterations or strike-throughs without initials. If you are unsure whether your case is affected, confirm with Lawyers Council of Thailand, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which situation in Certification by a Notarial Services Attorney wastes the most time unnecessarily?

Observed cause: Assuming attorney certification alone is accepted everywhere, when many countries require consular or embassy steps. If you are unsure whether your case is affected, confirm with Lawyers Council of Thailand, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Your case may have specific conditions — ask our staff directly.

094-895-8999LINE @ThainotaryNotary@ilc.ltd

Official sources: www.lawyerscouncil.or.th · consular.mfa.go.th

Continue with related services

The paths most clients take next — ask us by phone, LINE or email at any step.

Verified professional credentials

  • Member, Lawyers Council of Thailand (สภาทนายความ) verify
  • Registered certified translator, Ministry of Justice (Thailand) verify
  • Recognized agent for MFA Legalization Division, Thailand verify

Consumer protection & guarantees

  • Acceptance-or-rework guarantee: we redo the work at no charge if the receiving authority rejects a first submission due to a fault on our side.
  • Transparent fees quoted in writing before any work begins — no hidden surcharges.
  • Confidentiality: documents handled under a written non-disclosure undertaking.
  • Direct human contact for questions and quotations by phone, LINE or email.

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Composite cases assembled from commonly seen matters — not individual clients, no personal data.

parental travel consent from Ayutthaya for an overseas company incorporation

an authorised representative of a Thai-registered company from Ayutthaya — a tight travel or filing deadline required resequencing the work

What we handled: tracked progress between steps and reported status along the way · delivered a scanned set plus the originals with lodgement instructions · sequenced the certification chain to match the destination authority's rules · prepared the translation and reconciled every name spelling against the passport

What clients usually ask in matters like this: if the destination rejects this set, do we start over from scratch?

Indicative timeline: roughly 7–14 working days end to end

power of attorney from Ubon Ratchathani for a study or scholarship application

a Thai–foreign couple filing together from Ubon Ratchathani — the destination prescribed a specific translation and certifier type, so the right track had to be chosen upfront

What we handled: arranged the signing or lodgement appointment and listed what to bring · tracked progress between steps and reported status along the way · delivered a scanned set plus the originals with lodgement instructions · sequenced the certification chain to match the destination authority's rules

What clients usually ask in matters like this: how long does the set stay valid after certification?

Indicative timeline: roughly 10–20 working days end to end

affidavit from Chiang Mai for an overseas property transaction

a Thai national working overseas from Chiang Mai — the destination prescribed a specific translation and certifier type, so the right track had to be chosen upfront

What we handled: arranged the signing or lodgement appointment and listed what to bring · tracked progress between steps and reported status along the way · prepared the translation and reconciled every name spelling against the passport · sequenced the certification chain to match the destination authority's rules

What clients usually ask in matters like this: are true originals required, or will certified copies do?

Indicative timeline: roughly 10–20 working days end to end

Browse every case for this serviceCertification by a Notarial Services Attorney