Notary Public in Thailand for Foreigners (2026 Complete Guide)
How foreigners can have documents notarized in Thailand by a licensed Notarial Services Attorney — fees, processing time, accepted documents, and embassy legalization next steps.
If you are a foreigner in Thailand who needs documents notarized for use abroad — for visa applications, company incorporation, marriage, real estate, or court proceedings — this guide explains exactly how the process works in 2026.
What is a Notary Public in Thailand?
Thailand does not have a separate Notary Public office. Instead, the Lawyers Council of Thailand licenses qualified attorneys as Notarial Services Attorneys. They certify signatures, true copies, affidavits, Powers of Attorney, and company resolutions for international use.
Documents commonly notarized
- Power of Attorney (real estate, banking, company)
- Affidavit of single status / marriage / income
- Certified true copies of passport, work permit, degrees
- Board resolutions and company documents
- Translations into Thai/English/other languages
Process at ILC
- Send scanned documents via LINE @NAATI for quote and document check
- Walk-in or schedule appointment at our Bangkok / Khon Kaen / Udon Thani / Nong Khai offices
- Sign in front of the Notarial Services Attorney with photo ID
- Receive notarized originals same-day in most cases
After notarization
If the destination country requires apostille or consular legalization, ILC can run the document through the Ministry of Foreign Affairs (MFA) and the destination embassy on your behalf. See our MFA Legalization service and embassy directory.
Frequently asked questions
Is a Notary Public available in Thailand?
Thailand uses Notarial Services Attorneys licensed by the Lawyers Council of Thailand. They perform the same core functions as a notary — certifying signatures, copies, and affidavits accepted worldwide.
How much does notarization cost?
ILC starts at THB 800 per document. Multi-document or urgent service is quoted on request.
Do I need to be present in person?
Yes for signature certification. Copy/translation certification can be done remotely with scanned originals.
Will the embassy accept ILC notarization?
Yes. ILC notarizations are accepted by all embassies in Bangkok and by MFA Consular for apostille / legalization.
Go deeper on Notarial services attorney certification
Our advisory team has run these certification chains for 15+ years. Two references we keep updated for clients:
- Step-by-step playbook: documents, order of certification, rejection risks
- Route comparison: which certification path your receiving authority accepts
Not sure which route applies? Send us the scan — LINE @NAATI · 080-5578887 · ilc@thainotary.co.th
Documents usually required
- Original document plus one clear copy of every page
- Copy of the passport or Thai national ID card of the signatory
- Written statement of the purpose and the receiving authority
- Supporting records the receiving authority lists in its own checklist
Common reasons a bundle is rejected
- A Thai notarial services attorney is not identical to a foreign Notary Public; confirm what the destination accepts.
- The signatory must sign in front of the attorney, not beforehand.
- Spell every name exactly as it appears in the passport, across every document in the same bundle.
Prefer not to handle the chain yourself? Send the scans and we run every step for you, from translation to the final endorsement.
What clients typically use this for
- Signature and copy certification
- Powers of attorney used abroad
- Corporate and banking instruments
An advisor, not only a document processor
Before any work starts, our team assesses how many certification layers your document actually needs, which authorities are involved, and the correct order for the office you will really file with. One step out of order usually means restarting the whole bundle. More than 15 years of cross-border document work means we recognise how each authority rejects files and prevent it up front.
- The certification route is matched to the receiving authority before work begins.
- Rejection risks are checked, from name spelling to document validity windows.
- The filing sequence is planned around the deadline you actually have.
Consult us at LINE @NAATI · 080-5578887 · ilc@thainotary.co.th
Ask a question