What is a Notary Public? Why Do Certain Documents Need Notarization?

You may have heard the term “Notary Public,” especially when dealing with legal documents related to overseas matters. However, many people still don’t fully understand what it means, why it’s important, and why certain documents require this kind of verification. This article will explain it clearly to help you avoid legal issues in the future.

What is a Notary Public?

A Notary Public in Thailand is a licensed lawyer who has been officially appointed by the Lawyers Council of Thailand. They are authorized to verify signatures, certify documents, and confirm certain facts. The notarization process gives a document legal credibility and enables it to be accepted in other countries.

The role of a Notary Public is not just to stamp and sign. They must also verify the authenticity of the document, identify the person signing, and ensure that the document truly exists and is genuine. This helps prevent forgery and fraudulent use.

What Types of Documents Require a Notary Public?

Notarization is often necessary for documents involving international dealings, such as:

1.     Power of Attorney
Especially when used abroad, such as authorizing a lawyer in another country or handling overseas property transactions.

2.     International Business Contracts
Including joint venture agreements, sales contracts, or documents submitted for foreign tax filings or company registration.

3.     Documents for Visa Applications or Overseas Study
Such as income certifications or parental consent forms.

4.     Educational or Government Certificates
Required for embassy procedures or use in another country, often needing both signature and document authenticity verification.

5.     Affidavits
Used to confirm someone’s identity or legal standing in overseas legal applications.6.     Documents for Embassies or Consulates
Many embassies require notarized documents before translation and legalization by the Ministry of Foreign Affairs or the embassy itself.

What Happens If You Don’t Have a Notarized Document?

If your documents are not notarized when required, you may face:

• Rejection by foreign authorities.
• Delays due to having to redo the documents properly.
• Visa rejections or failed financial/property transactions.
• Missed business opportunities due to invalid or late documentation.

That’s why it’s important to check beforehand whether your documents require notarization and to prepare them correctly from the start.

Common Misunderstandings About Notary Publics

Some people believe that their own signature or a witness is enough. Others mistakenly think a village headman or local official can act as a Notary Public. In Thailand, only licensed lawyers who have been formally certified may serve as Notary Publics.

If someone who lacks legal authority certifies your documents, those documents may be invalid or rejected outright.

Notary Publics Are More Relevant Than Ever

In today’s globalized world, international transactions are common—for students, businesspeople, or even travelers. Many will eventually need notarization services.

Even if you’re not currently dealing with foreign affairs, having certified documents from a qualified lawyer helps prevent future legal issues.

Notarization Builds Trust

A Notary Public is a legal safeguard that ensures your documents are trustworthy and valid—especially when used internationally. Don’t overlook this crucial step.

If you’re unsure whether your document needs notarization or you don’t know how to prepare it properly, consult a lawyer to avoid unnecessary problems.

Certified Notary Public Services from Wongsakorn Law Office

Wongsakorn Law Office offers notarization services through licensed Notary Public lawyers who are officially recognized by Thai law. We can notarize all types of documents, whether for education, business, or international litigation.

We focus on accuracy, speed, and security—so you can be confident your documents will be accepted and legally valid wherever they go.

📞 Need Notary Public services? Contact us today or reach us on LINE: @wongsakorn