Can Foreigners Own Businesses Under the Treaty of Amity in Thailand?

Establishing a business in Thailand as a foreigner can seem complex due to restrictions imposed by Thai law. However, for American citizens and companies, the U.S.–Thailand Treaty of Amity offers unique advantages that allow them to conduct business more freely than other foreign investors. At My Thailand Lawyer, based in Bangkok, we specialize in helping foreign entrepreneurs understand and use this treaty to their benefit when setting up companies in Thailand.

This guide provides a complete overview of the Treaty of Amity, the rights it grants, the restrictions involved, and the legal process for compliance.


Understanding the U.S.–Thailand Treaty of Amity

The Treaty of Amity and Economic Relations, signed between the United States and Thailand in 1966, was designed to promote stronger economic ties between the two nations. Under this treaty, U.S. citizens and businesses are granted special privileges that set them apart from other foreign investors.

The primary advantage is that American investors are allowed to hold majority ownership or even 100% ownership of a company in Thailand, something not usually permitted under Thailand’s Foreign Business Act.


Key Benefits of the Treaty of Amity

For Americans interested in starting a business in Thailand, the treaty provides several critical advantages:

1. Majority or Full Ownership Rights

Unlike most foreign investors who are restricted to a minority stake in many business sectors, U.S. citizens and companies can legally hold the majority share or 100% ownership in a Thai business.

2. Equal Treatment as Thai Nationals

Businesses established under the Treaty of Amity are granted “national treatment.” This means they are treated in the same way as Thai-owned businesses when it comes to most regulations, giving them a more level playing field.

3. Flexibility Across Many Sectors

While some industries remain restricted, the treaty allows U.S. citizens to operate in a wide variety of business fields that would otherwise require Thai partners.

4. Long-Term Business Opportunities

The treaty creates a secure legal framework for American investors, providing stability and encouraging long-term growth in Thailand’s dynamic economy.


Restricted Business Activities Under the Treaty

While the Treaty of Amity offers significant benefits, there are still certain areas where U.S. investors cannot engage. The treaty excludes activities considered sensitive to Thailand’s national interests. These include:

  • Communications

  • Transport

  • Banking (excluding international banking)

  • Land ownership

  • Domestic trade in agricultural products

  • Natural resource exploitation

U.S. businesses must carefully review these restrictions before planning their operations. At My Thailand Lawyer, we guide clients through the evaluation process to ensure their business complies with all regulations.


Legal Requirements to Register a Treaty of Amity Company

Setting up a Treaty of Amity company in Thailand involves several steps. The process requires attention to detail and a thorough understanding of Thai law.

Step 1: Company Registration

First, the business must be registered as a Thai limited company. While the treaty allows majority or full U.S. ownership, the company must still be properly registered under Thai corporate law.

Step 2: Certification by the U.S. Commercial Service

The company must obtain certification from the U.S. Commercial Service to confirm that it qualifies as a U.S.-owned business.

Step 3: Application with the Ministry of Commerce

Once certified, the business must apply with Thailand’s Ministry of Commerce to officially register under the Treaty of Amity.

Step 4: Foreign Business License

Depending on the type of business activity, the company may also require a Foreign Business License (FBL) to operate legally.

Our team at My Thailand Lawyer provides end-to-end support for these procedures, ensuring clients meet every requirement without unnecessary delays.


Common Challenges for Foreigners Setting Up a Business

While the Treaty of Amity provides unique opportunities, foreigners still face challenges when starting businesses in Thailand. Some of the most common issues include:

  • Complex paperwork and multiple government approvals.

  • Strict legal compliance with Thai corporate and labor laws.

  • Unfamiliar tax regulations and accounting requirements.

  • Language barriers in official documents and government communication.

Working with experienced legal professionals in Bangkok ensures these challenges are managed efficiently.


Why Work With a Law Firm in Bangkok?

Navigating Thai law requires local knowledge, and having a trusted legal partner is essential. At My Thailand Lawyer, we provide tailored advice for foreign clients under the Treaty of Amity, including:

  • Business registration assistance.

  • Corporate structuring guidance.

  • Drafting and reviewing legal documents.

  • Compliance with labor and tax laws.

  • Long-term legal support for business operations.

By working with a Bangkok-based legal team, U.S. investors can confidently establish their companies while focusing on business growth.


Business Opportunities for Americans in Thailand

Thailand offers a wide range of industries where U.S. businesses can thrive under the Treaty of Amity. Some promising sectors include:

  • Technology and software development

  • Consulting services

  • Import and export trading

  • Hospitality and tourism-related services

  • Manufacturing partnerships

These sectors continue to grow, making Thailand an attractive destination for American entrepreneurs.


Long-Term Strategic Benefits

Operating under the Treaty of Amity does more than allow U.S. investors to bypass foreign ownership restrictions. It also offers long-term strategic advantages:

  • Market Expansion – Access to Southeast Asia’s growing economy through Thailand’s central location.

  • Business Stability – Legal recognition ensures long-term stability for foreign-owned businesses.

  • Global Competitiveness – Treaty protection makes U.S. businesses more competitive in the region.


How My Thailand Lawyer Can Help

At My Thailand Lawyer, we have extensive experience assisting American investors in using the Treaty of Amity to set up businesses in Thailand. Our legal team based in Bangkok provides:

  • Step-by-step consultation on eligibility.

  • Handling of all registration and certification procedures.

  • Legal advice to ensure compliance with Thai law.

  • Ongoing corporate support for smooth operations.

We simplify the legal complexities so you can focus on building and growing your business in Thailand.


The Treaty of Amity between Thailand and the United States provides American investors with an exceptional opportunity to own and operate businesses in Thailand with fewer restrictions than other foreign nationals. While there are specific limitations and compliance requirements, the benefits far outweigh the challenges.

For U.S. citizens seeking to establish a business presence in Thailand, the treaty is one of the most effective legal pathways available. With the right legal support from an experienced Bangkok law firm like My Thailand Lawyer, navigating the process becomes seamless and efficient.

If you are an American entrepreneur or investor considering starting a business in Thailand, our team is here to help you understand your rights under the Treaty of Amity and ensure your company is fully compliant with Thai law.