Investing in Thailand: Due Diligence Before Starting a Business

Thailand offers opportunities for entrepreneurs, long-term residents and international businesses, but the decision to invest should begin with documents rather than enthusiasm. A promising partner, attractive premises or an appealing sales forecast does not remove the need to understand ownership restrictions, licences and the costs of operating legally.

Start by defining the investment

Buying shares in an existing Thai company is not the same as opening a new business, acquiring a condominium or financing someone else’s project. Each arrangement has different questions about control, liability and rights if the relationship ends.

Write a simple statement of what you are buying, from whom, at what price and in exchange for which legal rights. A useful investment proposal should survive scrutiny without relying on phrases such as “everyone does it this way” or “the paperwork can be fixed later”.

Understand foreign-business rules

Thailand’s Foreign Business Act is an important starting point for some foreign-owned or foreign-controlled operations. Whether a licence, certificate or other approval is relevant depends on the precise business activity, company structure and any applicable exceptions. There is no single foreign-ownership rule that correctly describes every industry.

The Department of Business Development (DBD) provides corporate registration services and channels relating to foreign-business applications. The Board of Investment (BOI) publishes guides on starting and operating a business and on investment promotion.

Investment promotion can offer benefits to eligible projects, but it should not be confused with a universal exemption from licensing, work authorisation or other legal duties. Verify whether the actual activity qualifies, rather than assuming that an attractive proposal will later become eligible.

Check ownership, partners and signatory powers

Before sending money, obtain current registration records, the shareholders’ structure, authorised directors and evidence of the company’s right to use important assets. Verify these independently through appropriate official channels and qualified advisers.

Ask who can sign contracts, operate bank accounts, approve payments and sell assets. A minority investment may provide economic exposure without control of management decisions. Shareholders’ agreements should address information access, voting rights, additional funding needs, disputes and exit arrangements.

Do not use a person as a nominal shareholder to conceal the true ownership or to evade legal restrictions. Thai authorities actively scrutinise nominee arrangements. Any proposed ownership structure should reflect genuine funding, genuine beneficial interests and lawful operation.

Do due diligence on the business itself

Company registration is not evidence that the business earns what its seller claims. Request financial statements, tax documents, material supplier agreements, leases, employment obligations and outstanding debt information where appropriate. Compare management claims with independent records and, when possible, observed operations.

Watch for cashflow dependence on a single large customer, inventory that cannot be verified, unexplained related-party payments and revenue forecasts based on exceptional tourist seasons. Tourism and property demand can vary, and a historical annual return should never be advertised as guaranteed.

Work permits and operational permissions are separate

Owning shares does not automatically authorise a foreign national to perform any job in Thailand. Immigration status, work authorisation and the nature of the role need independent review. Depending on the activity, operating permits, zoning, health, safety or environmental requirements may also apply.

A business may be registered but still lack a required licence for a particular service. Before signing a long lease or beginning construction, confirm that the proposed use is permitted and that the rights granted by the lease or property agreement are enforceable.

Make the contract workable when things go wrong

Discuss how directors are appointed and removed, how financial records will be shared and what happens if a partner leaves. The most valuable protections are often mundane: reliable accounting, two-person approval for material transfers, documented expenses and independent professional advice.

Ensure important agreements are in a language each signing party understands. Where translations differ, have counsel explain which text controls. Never sign an empty form or transfer funds to an unrelated personal account merely because the transaction is described as urgent.

Practical checks before investing

• Verify the registered business and the people legally authorised to represent it.
• Identify the precise activity and check relevant foreign-business restrictions and licences.
• Review audited or independently examined financial information where available.
• Confirm land, lease and property-use rights through qualified local professionals.
• Document the source and destination of invested funds.
• Agree clear reporting, governance and dispute provisions.
• Have an independent Thai legal and accounting adviser review the transaction.

Replace rumours with reliable records

Some old accounts of investing in Thailand revolve around a named individual’s dispute with authorities or business partners. Such experiences may raise legitimate questions, but a single contested story cannot establish the rules or risks for every investor. A stronger decision is based on current law, independently checked documents and a plan that remains realistic when conditions become difficult.