Business Law in Thailand: A Guide for Foreign Companies

Last updated on August 16, 2026

Business Law in Thailand encompasses a range of regulations crucial for foreign investors and entrepreneurs. The Board of Investment (BOI) gives incentives to encourage foreign investment. These include tax breaks and land ownership rights. However, some restrictions still apply. Foreigners have limits on owning businesses due to the Foreign Business Act. This means many sectors need a Thai majority-owned company.

Additionally, foreigners must obtain a work permit to legally work in the country. There are different types of business entities in Thailand. These include limited companies, partnerships, and foundations. Each type has its own legal requirements and benefits. Understanding these regulations is essential for navigating the Thai business landscape and ensuring compliance with local laws. Do not forget that Thailand is a target destination for worldclass events.

Here are 5 business law in Thailand rules that any expats should know:

1.Company Registration Requirements In Thailand, private limited companies must register with the Ministry of Commerce. The process includes submitting a company name for approval, registering the company, and obtaining a corporate seal. It’s important for expats to prepare all documents in Thai, which often requires certified translations. The DBD, or Department of Business Development, helps create companies and registered partnerships in Thailand.

2.Foreign Business Act Compliance The Foreign Business Act (FBA) governs what businesses foreigners can engage in. Some business activities are restricted or require special licenses and a Foreign Business License. Understanding which activities are affected by the FBA is crucial to ensure compliance and avoid legal issues.

3.Employment Law Adherence Thai labor laws are protective of employees, covering working hours, welfare, termination, and severance pay. Expats running businesses must follow these laws closely to avoid legal issues. They need to make sure that employment contracts are complete and meet all legal requirements.

4. Intellectual Property Protection Protecting your intellectual property in Thailand is vital. The process involves registering patents, trademarks, or copyrights with the Department of Intellectual Property. This is very important for businesses that depend on unique products, designs, or brands. It helps prevent infringements and legal issues.
Tax Obligations Businesses in Thailand must pay different taxes. These include corporate income tax, value-added tax (VAT), and specific business taxes. The taxes depend on the type of business. Keeping accurate financial records and understanding tax obligations is essential to avoid penalties and ensure smooth operations.

Here’s more information about Business Law in Thailand from our website:

General principles

• Thai Corporate Law General Principles

Charity organizations

In Thailand, a foundation is a non-profit group. It is set up with donated money to help with charity work. Foundations follow the Civil and Commercial Code. They need at least three founders and a registered board of directors. An association is a group of people with a common goal or interest. It is governed by the Civil and Commercial Code. To register, it needs at least ten members. Associations focus more on activities than on funding. Charities organizations are not really part of Business Law in Thailand. But they are juristic persons and they most follow many of the same law. We are talking about work permits, accounting, taxes, etc.

• Opening a foundation in Thailand
• setting up a foundation in Thailand
• Treaty of Amity in Thailand

Companies

Companies and organizations are important in the global economy. They help run businesses smoothly and efficiently. This allows for large-scale economic activities that individual entrepreneurs cannot do alone. They offer a clear way to share resources, reduce risks, and attract investments. This helps drive innovation, create jobs, and boost economic growth. With legal recognition, companies can make contracts, own property, and be held responsible. This helps build trust and stability in business deals. This legal status lets businesses continue even after their founders are gone. This ensures stability and long-term planning, which are important for ongoing economic growth and social progress.

• Should you start a company in Thailand?
• What is required to be a successful business in Thailand
• Is Thailand a good place to invest in 2024?
• The Department of Business Development in Thailand (Responsible for Companies)

Intellectual Property

• Trademarks in Thailand
• Soon

Labour Law is an important part of Business Law in Thailand

Labour law is an important part of business law in Thailand. It governs the relationship between employers and employees. This law ensures fair treatment, safe working conditions, and fair pay. Labour law sets clear rules and standards. This helps stop exploitation and discrimination. It creates a fair and respectful workplace.

It includes rules for minimum wages, working hours, health and safety, and ways to resolve disputes. These rules protect workers’ rights and help their well-being and productivity. Additionally, labour law provides a framework for collective bargaining, enabling workers to negotiate terms of employment through unions. For businesses, following labor laws reduces the risk of legal issues. It also improves employee satisfaction and retention. This leads to a stable and efficient operation. In the end, it helps the economy stay healthy and sustainable.

• Some Labour Laws and Regulation in Thailand (and information)
• Summary of Labour Law in Thailand
• Social Security in Thailand
• Employment Agreements (templates to download – membership required)

Loan Agreements

• Loan Agreements in Thailand
• Templates of Loan Agreements for Thailand (need membership)

Corporate Law in Thailand: the Rules That Govern Your Company

Corporate law in Thailand is built on Book 3, Title XXII of the Civil and Commercial Code (CCC), sections 1012 to 1273, which governs partnerships and companies. For almost every foreign investor the vehicle that matters is the private limited company. This guide sets out how that company is formed, who controls it, what the foreign-ownership limits are, and what it costs to do it properly. Where a rule comes from a specific section of the Code, we cite it, so you can check it yourself.

The Private Limited Company: the Standard Vehicle

A limited company is one whose capital is divided into shares, and whose shareholders are liable only for the amount unpaid on the shares they hold (CCC section 1096). Once the company is registered, it becomes a juristic person distinct from its shareholders (CCC section 1015). That separation is the whole point: the company owns the assets, signs the contracts, and carries the liability, not the individuals behind it.

How many shareholders you need. This changed recently and a lot of older guides still get it wrong. Section 1097 used to require three or more promoters. The Act amending the Civil and Commercial Code (No. 23) B.E. 2565, effective 7 February 2023, reduced the minimum to two. A private limited company in Thailand can now be formed and held by just two shareholders, and the quorum for a shareholders meeting is two persons (section 1178).

Formation Steps

1. Reserve the company name with the Department of Business Development (DBD).
2. File the Memorandum of Association. Section 1098 requires it to state the company name (which must end with the word “Limited”), the province of the registered office, the objects, a statement that shareholder liability is limited, the registered capital and the division into shares, and the promoters’ details. Each promoter must subscribe at least one share (section 1100).
3. Hold the statutory meeting to adopt the articles and appoint the first directors and auditor.
4. Register the company with the DBD. On registration it becomes a juristic person (section 1015). Registration of a company and its memorandum can be completed on the same day where the capital is fully arranged.

Directors and Management

A limited company is managed by a director or directors, under the control of the general meeting of shareholders and in accordance with the company’s regulations (CCC section 1144). The number of directors and their remuneration are fixed by the general meeting (section 1150). A casual vacancy on the board, other than one arising by rotation, may be filled by the remaining directors, but the person appointed holds office only for the remainder of the departing director’s term (section 1155).

A director owes the company duties of care and loyalty. Who may bind the company, and whether one authorised signature is enough or two are required, is set by the registered authorised-signatory rule, which appears on the company’s DBD affidavit. Getting that rule right at formation avoids a common and expensive problem later, when a bank or a counterparty refuses a document because it was signed by the wrong combination of directors.

Shareholders, Dividends and the Reserve Fund

No dividend may be declared except by a resolution of a general meeting, though directors may pay interim dividends where the position justifies it (CCC section 1201). One rule catches many new companies by surprise: at every distribution of a dividend the company must set aside at least one-twentieth (5%) of its profits into a reserve fund, until that reserve reaches one-tenth of the company’s capital (section 1202). A dividend paid without making that appropriation is irregular.

Foreign Ownership and the 49% Rule

For most business activities a company is treated as foreign if 50% or more of its shares are held by non-Thais, and foreign majority ownership of a restricted business is capped by the Foreign Business Act B.E. 2542 (1999). In practice this is why the “49/51” structure is so common. There are three main lawful routes to more than 49% foreign ownership:

• Board of Investment (BOI) promotion, which can allow 100% foreign ownership in promoted activities, along with tax and visa benefits.
• A Foreign Business Licence, granted case by case for activities on List Three of the Act.
• The US-Thailand Treaty of Amity, which lets American nationals and US-majority companies own up to 100% in most sectors.

Using Thai nationals as nominee shareholders to disguise foreign control is not a route. It is an offence under the Foreign Business Act, and it is currently the subject of an active nationwide crackdown. See our page on Thai nominee shareholders.

A Thai limited company pays corporate income tax at the standard rate of 20% on net profit, with reduced rates for qualifying small companies. It must keep audited accounts, file an annual return, and hold at least one shareholders meeting a year.

Winding a Company Up

A company can be dissolved voluntarily by special resolution, or by the Court on the grounds in CCC section 1237, which include failure to file the statutory report or hold the statutory meeting, and failure to commence business within a year. On a winding-up, company property is distributed to shareholders only after all the company’s obligations have been met (section 1269). Closing a company down properly takes several months because of the liquidation and tax-clearance steps, so it is worth planning the exit at the same time as the formation.

Need this done properly? See our business setup and company registration service for fees, timelines and what we handle for you.

Work permit for foreigners doing Business Law in Thailand

In Thailand, foreigners are required to obtain a work permit to legally engage in employment. This involves securing a specific job with an employer who sponsors the permit application. The Alien Employment Act B.E. 2551 (2008) outlines the legal framework for work permits. It includes requirements, procedures, and exceptions for certain categories such as diplomats and urgent short-term work. Violating work permit regulations can result in legal penalties. They could be fines and deportation, emphasizing the importance of compliance for foreign workers and employers.

• Work Permits in Thailand
• Prohibited Jobs for Foreigners in Thailand
• Labour Department phone numbers and emails (in Thai)
• Work Permits by the Labour Department or Ministry of Labour

Treaty of Amity

The Treaty of Amity and Economic Relations lets American companies own most or all of their businesses in Thailand. It also offers some exemptions from Thai rules that limit foreign business ownership.

• Soon

Tafta (Thailand Australia Free Trade Agreement)

The Thailand-Australia Free Trade Agreement (TAFTA) is a deal between Thailand and Australia. It aims to remove tariffs and boost trade between the two countries. It is fostering economic cooperation and enhancing market access for goods and services. Both the Treaty of Amity and the Tafta help Australians and Americans do business in Thailand. They make it easier for these countries to work together.

• Thailand Australia Free Trade Agreement

Tax Law

Taxation is essential for funding government operations and public services. Its rules are based on laws established by each country’s legislative body. Common types of taxes include income tax, consumption tax, property tax, and tariffs. In the U.S., the IRS oversees tax collection. In Thailand, the Revenue Department handles this task. Tax systems strive for fairness through progressive rates, ensuring those with higher incomes pay more. International rules, such as double taxation agreements, prevent tax evasion in a globalized economy. Compliance is required, and there are penalties for not following the rules. Taxes also help achieve larger economic and social goals. These goals include wealth redistribution and protecting the environment.

• Personal Income Tax in Thailand
• Corporate Income Tax in Thailand
• Specific Business Tax (Real Estate in Thailand)
• How to register a Tax ID in Thailand for an expat
• Inheritance Tax in Thailand