Notary Public in Thailand

A Notary Public is an official of integrity appointed by the state government. These official acts are called notarizations, or notarial acts.

Notaries are publicly commissioned as “ministerial” officials, meaning that they are expected to follow written rules without the exercise of significant personal discretion, as would otherwise be the case with a “judicial” official.

Notary public in Thailand is quite different from other countries as you may require services from a notarial service attorney.

We are accredited by Thai Lawyer Council. You can verify the member status with Thai Lawyers Council Notary public undergoes unique licensing assessment to be able to perform these kinds of service.

Siam Attorney excels in providing quality Thai notary services. They have a number of lawyers who are qualified to do such jobs.

Siam Attorney has notary public in Bangkok and also a notary public in Phuket so finding a notary public in Thailand does not require tremendous amount of effort in choosing the perfect Thai notary.

Siam Attorney can do all notary services for each client with various requests.

Table of Content (Click to read):

What is the Notary Public?
Why you need Notary stamp?
Documents that usually need to certified.
How you can get certified by Notary Public?
How long it takes?
How much does Notary Public cost?
Thailand and the Apostille Convention (2026 Update)
Frequently Asked Questions

1. What is a Notary Public?

Notary Public is internationally recognized whether be it on the United States, Europe, or even in the Southeast Asia region.

Notary public is usually an official recognized by the government to validate certain documents, signature of a person, a title deed, or even a statement of a person under oath.

You may ask if it’s really important to have documents notarized so here is our answer.

Notarized documents are extremely essential in proving that it is authentic. A person that has a document notarized may have a valid proof or a strong grip of evidence when needed in a courthouse.

Get to know about Notary Public in 5 minutes.

2. Why you need Notary Public Stamp?

As you are in Thailand territory, and you need to use your document in oversea for your business propose or other reason. The destination that going to accept your document must make sure that is real document or real signature of you.

So, they need notary public in such territory to certified of the correctness.

Notary public in Thailand is quite different from other countries as you may require services from a notarial service attorney.

We are accredited by Thai Lawyer Council. You can verify the member status with Thai Lawyers Council Notary public undergoes unique licensing assessment to be able to perform these kinds of service.

3. Document that usually need to certified.

Copy of Passport: This is the basic document that you need to use for support for any application in aboard. Most likely, our client came to certified the True Copy of their passport.
Proof of Address: Normally, when you open bank account in oversea or set up business in oversea, the bank or the authority at aboard will need your exact address in Thailand to contact with you. In this case, you must provide the document shown your name and address to the Notary officer such as utility bill, credit card statement etc. Then the Notary will prepare letter certified you name and address. And also attached with the document that you are provided. In case you document in Thai language, our Notary can translate your name and address to English for you.
Embassy form: Sometime you need to submit the document to your embassy, but the Embassy need you sign some embassy’s form and certified by Notary public. In this case, you can bring such form to our office in Bangkok or Phuket to certified for you. Moreover, you can come to print the form at our office as well.
Signature: Any documents that you need to sign in Thailand, but you will courier to oversea for any business propose such as Power of Attorney, Loan & Mortgage Agreement etc. Most likely, they will ask you certified your signature from Notary Public. Because they need to make sure that it is the real signature of you. For this case, you must bring the document that you are going to sign along with your passport to our firm.
Translation: The original document that in Thai language, our Notary officer can translate to English and certified the correctness of translation. If you need help for translation of documents, please read information here as well: Translation Service
Wills and Testament: In order to make sure that you are intent to give your estate to someone when you passed away, some country require your Wills and Testament to certified by Notary Public in Thailand. You may read information about Thai Wills as here: information about Thai Wills and Testament
Degree Certificate: Sometime you need to study or apply to work in other country, they are require your Bachelor or Master or Doctor Degree Certificate need to be Notarized Public for your application.
Company Documents: Board resolutions, Power of Attorney for business, Certificate of Incorporation, and Affidavits for overseas business registration or bank account opening.
Property & Bank Documents: Foreign Exchange Transaction (FET) forms and related documents needed when purchasing a condominium in Thailand as a foreigner.

4. How you can get certified by Notary Public?

You can call or email us for arrange an appointment for see our officer in Bangkok Sukhumvit downtown area and has officer standby to assists you.

We are open on Monday to Friday between 9.00am-6.00pm. Please bring along your document that you need to certified and your passport for identification.

Moreover, we also have office in Phuket that our Notary Officer can accompany you.

Siam Attorney excels in providing quality and reliable Thai notary services. We have a number of lawyers who are qualified to do such jobs.

Siam Attorney has notary public in Bangkok and also a notary public in Phuket so finding a notary public in Thailand does not require tremendous amount of effort in choosing the perfect Thai notary.

Siam Attorney can do all notary services for each client with various requests.

Siam Attorney has many officers in Bangkok downtown and also in Phuket located at Royal Phuket Marina available to assist you.

Whatever the reason for having the assistance of a Thai notary, Siam Attorney will always be ready to help with its top lawyers to notarize your document.

Please feel free to contact us via call or email, we are always on standby to assists you. You can click here to see our contact number and address: contact number and address

Our Notary Public Member

Name: Mr. Chumpol Bhuvphant

Attorney at Law, License No.1602/2548

Notarial Service Attorney, Registration No.12376/2566

Experienced as Attorney: 30 years

5. How long it takes?

We are going to take about 30 – 45 minutes for processing of Notary Stamp.

However, in case you need to certified translation of document, you need to prepare sometime for our translator to translate your documents as well.

6. How Much Does Notary Public Cost in Thailand?

One of the most common questions clients ask before booking is how much notarization costs. Here is a general price guide:

Service	Approximate Price
Certified true copy (e.g. passport)	THB 2,000 per document
Signature certification	THB 2,000 per signature
Proof of address / embassy form	THB 2,000 per document
Certified translation + notarization	THB 2,000 per document

Final pricing depends on the number and type of documents, and whether translation is required. Contact us for an exact, no-obligation quote.

7. Thailand and the Apostille Convention: 2026 Update

If you have researched notarizing documents for use abroad, you may have come across the term “Apostille.” Here is where Thailand currently stands:

On 30 June 2026, Thailand formally deposited its instrument of accession to the 1961 Hague Apostille Convention.
The Convention will officially enter into force for Thailand on 28 February 2027.
Until that date, documents notarized in Thailand for use abroad generally still require the traditional route: notarization by a Notarial Services Attorney, followed by legalization at the Department of Consular Affairs (Ministry of Foreign Affairs) and, in many cases, further legalization at the destination country’s embassy or consulate in Thailand.
From 28 February 2027 onward, most public documents will only need a single Apostille certificate instead of multi-step consular legalization — making the process faster and simpler.

Our team stays up to date with these changes and will guide you through whichever process applies at the time of your application.

8. Frequently Asked Questions

Is there a “Notary Public” in Thailand like in the US or UK?

Not exactly. Thailand does not have the same public notary system as common-law countries. Instead, documents are notarized by a “Notarial Services Attorney” — a licensed Thai lawyer who has completed additional certification from the Thai Lawyers Council to perform notarial acts. Siam Attorney’s notarial service attorneys are fully accredited and internationally recognized.

How much does notary public service cost in Thailand?

Pricing depends on the document type and whether translation is required — see the price guide above. Contact us for an exact quote.

Do I need an appointment?

Yes, we recommend booking ahead by phone or email so an officer is ready for you at our Bangkok or Phuket office.

Will my notarized document be accepted by my embassy or authority abroad?

In most cases, yes. Notarized documents from Thailand are recognized internationally, though many countries still require an additional step of consular/embassy legalization on top of notarization — see the Apostille Convention update above.

Is Thailand part of the Apostille Convention?

Not yet. Thailand deposited its instrument of accession on 30 June 2026, and the Convention enters into force on 28 February 2027. Until then, documents notarized in Thailand for use abroad generally still require additional legalization by the relevant embassy or consulate.

How long does the process take?

About 30–45 minutes for standard notarization. Certified translations require additional time depending on document length.

Conclusion:

Notary Public in Thailand even in Bangkok or Phuket is the Lawyer who are accredited by Thai Lawyers Council Under the Royal Patronage and has authority to certified your document that you are going to use in oversea or submit to your embassy in Bangkok, Thailand.

The intention of Notary is to certified correctness of document, signature or even translation

Siam Attorney has many officers in Bangkok downtown and also in Phuket located at Royal Phuket Marina available to assist you.

Whatever the reason for having the assistance of a Thai notary, Siam Attorney will always be ready to help with its top lawyers to notarize your document.

Please feel free to contact us via call or email, we are always on standby to assists you.

And if your documents are headed abroad, ask us about the upcoming Apostille Convention changes so you know exactly what process applies to you.