Thailand’s foreign investment environment entered a significant new enforcement era on 1 April 2026 following the implementation of Department of Business Development (“DBD”) Order No. 1/2569. While the Foreign Business Act (“FBA”) itself has not fundamentally changed, the government’s interpretation of foreign dominance and nominee shareholding structures has become substantially more aggressive and sophisticated.
For decades, many foreign investors relied on Thai-majority shareholding arrangements where Thai nationals held shares on paper while operational control, financing, and economic benefits remained with foreign stakeholders. Under the DBD’s new enforcement approach, these structures are no longer being assessed purely based on legal documentation. Instead, regulators are increasingly examining the “actual control” behind the company.
The result is a major shift in Thailand’s foreign investment landscape — one that pushes businesses toward transparent, defensible ownership models and significantly increases the strategic importance of BOI-promoted structures.
Thailand Moves Beyond Formal Shareholding Analysis
The core objective of the new DBD measures is to identify whether Thai shareholders are genuine investors or merely acting as nominees for foreign parties. Company registrars now have broader authority to request extensive supporting evidence regarding a Thai shareholder’s financial capability and source of investment funds.
In practice, this means Thai shareholders may be required to provide bank statements, proof of income, loan agreements, and evidence demonstrating that their investment capital was not directly or indirectly funded by foreign investors. The focus is no longer limited to who legally holds the shares, but rather who ultimately finances, controls, and benefits from the business.
This reflects a broader global regulatory trend toward “substance over form” analysis. Similar to international beneficial ownership and anti-money laundering standards, Thai authorities are increasingly evaluating the economic reality behind corporate structures rather than relying solely on corporate registration documents.
For foreign investors, this creates a much higher level of legal and operational risk for traditional nominee arrangements that previously operated within regulatory gray areas.
Cross-Agency Enforcement Is Becoming More Aggressive
The DBD’s 2026 initiative is not operating in isolation. Enforcement efforts are now being coordinated across multiple government agencies, including the Revenue Department, Immigration Bureau, Anti-Money Laundering Office (AMLO), Department of Special Investigation (DSI), and Tourist Police.
Authorities have also begun utilizing data analytics to identify high-risk ownership patterns and abnormal corporate structures. Businesses operating in sectors heavily associated with foreign participation — particularly tourism, hospitality, real estate services, restaurants, and villa operations — are facing heightened scrutiny.
Tourism-driven provinces such as Phuket, Pattaya, Koh Samui, and Koh Phangan have become major enforcement targets due to the concentration of foreign-controlled businesses using Thai shareholding structures.
Regulators are reportedly reviewing various indicators of hidden foreign dominance, including repeated use of the same Thai shareholders across numerous companies, shareholders lacking sufficient financial capability, foreign nationals exercising exclusive signing authority, and company financing arrangements inconsistent with declared ownership structures.
Importantly, recent investigations suggest that authorities are no longer reviewing isolated companies alone. Entire ownership networks and related-party structures are increasingly being examined together, significantly expanding enforcement exposure for foreign investors relying on nominee-based arrangements.
Why BOI Promotion Has Become More Important Than Ever
At the same time that Thailand is tightening foreign ownership enforcement, multinational groups are also adapting to the OECD Pillar Two Global Minimum Tax (“GMT”) framework, which reduces the practical value of traditional corporate tax holidays for many large international groups.
As a result, legal certainty and regulatory sustainability are becoming more important than pure tax incentives alone.
This is one of the key reasons why Thailand’s Board of Investment (“BOI”) regime has become strategically critical in 2026.
Unlike nominee arrangements that attempt to indirectly preserve foreign control, BOI promotion provides a fully lawful framework allowing eligible businesses to operate with 100% foreign ownership. More importantly, BOI-promoted companies benefit from stronger institutional alignment with Thai government policy objectives.
In addition to tax incentives, BOI companies receive substantial non-tax benefits, including streamlined visa and work permit procedures, digital work permit integration, relaxed foreign ownership restrictions, land ownership rights for promoted activities, and greater administrative support across government agencies.
From a risk management perspective, BOI structures now offer something increasingly valuable in Thailand’s evolving regulatory environment: long-term defensibility.
As enforcement standards become stricter, foreign investors are placing greater value on structures that can withstand regulatory review without relying on technical loopholes or undocumented side arrangements.
The Future of Foreign Investment Structuring in Thailand
Thailand’s 2026 “actual control” enforcement initiative signals a broader transformation in the country’s investment environment. The government is clearly moving toward greater transparency, stronger beneficial ownership scrutiny, and more sophisticated cross-agency enforcement mechanisms.
For foreign investors, the message is becoming increasingly clear: the era of passive nominee structures is gradually ending.
Future-proof investment structures in Thailand will likely depend on transparent capitalization, genuine commercial substance, defensible governance frameworks, and regulatory-approved ownership models. Businesses that continue relying on undocumented control arrangements may face growing exposure not only under the Foreign Business Act, but also under broader financial, tax, and anti-money laundering investigations.
At the same time, Thailand continues to actively welcome legitimate foreign direct investment, particularly in sectors aligned with national economic development priorities. The government’s objective is not to discourage foreign participation, but rather to eliminate artificial ownership structures that undermine regulatory integrity and fair competition.
In this new environment, BOI promotion is no longer viewed merely as a tax incentive mechanism. It is increasingly becoming the most secure and sustainable legal foundation for foreign investors seeking long-term operational control in Thailand.
