Lead photograph: sunrise on Koh Samui, July 2008 (archive image). Lisa Tancsics / Wikimedia Commons, CC BY-SA 3.0. Uploaded without edits. Location illustration only, not evidence of any property offence.
TL;DR
- Thailand is matching company and property records to investigate suspected nominee arrangements, including existing structures.
- A company described as “51% Thai-owned” is not automatically unlawful, but the percentage alone does not establish that its Thai shareholders are genuine investors.
- Company-held land, a registered lease and a condominium title are different legal arrangements. Owners should establish which rights they actually hold before planning a sale or relying on renewal promises.
The villa may look exactly as it did when the keys changed hands. The question now receiving closer attention in Thailand is what sits behind the title: who supplied the money, who genuinely owns the company, and whether the arrangement withstands scrutiny beyond its shareholder percentages.
For foreigners who bought through a Thai-majority company, the government's nominee crackdown makes an old assurance worth revisiting: “It is fine because the company is 51% Thai.”
That description may explain the share register. It does not, by itself, explain the legal substance of the transaction.
What the Thai government is doing
This is more than a warning to future buyers. Authorities are examining corporate and landholding information that can reach existing arrangements.
In an official statement describing a meeting on 11 May 2026, the Department of Special Investigation (DSI) said it and the Department of Business Development (DBD) were using data from 11,426 companies to classify nominee risk. Koh Samui and Koh Phangan were the initial targets, with high-risk cases prioritised for investigation.
The DSI announced plans to extend inspections to Phuket, Krabi, Phang Nga, Pattaya and Hua Hin. Its statement described prosecution where offending conduct is established, not a finding that every company screened had broken the law.
The exercise subsequently widened. Reporting on a September inter-agency initiative, The Nation on 8 September 2026 said ownership records covering 125,622 companies were being used for nominee checks. The records included 36,277 companies with foreign investment holding 305,838 land plots.
Those numbers describe screening populations and recorded ownership, not convictions, confiscations or individual foreign homeowners. They should not be added to the earlier 11,426-company figure: the sources describe different exercises, and their overlap is not established.
According to The Nation, the DBD would supply company registrations, shareholder information and financial statements, while coordinating with agencies including the Department of Lands, police, DSI and the Anti-Money Laundering Office. Officials were also examining historical records.
The practical change for owners is the possibility of a wider evidential picture: a corporate filing can be compared with land records and financial information, rather than considered in isolation.
“51% Thai-owned” is not a lease
The familiar 51/49 arrangement concerns company shares. A Thai-majority company may hold the land, while the foreign buyer holds shares in that company. The buyer does not thereby acquire personal freehold ownership of the company's land.
A nominee concern arises where Thai shareholders hold shares on someone else's behalf to conceal foreign ownership or circumvent legal restrictions. Thai participation is not automatically a sham, and a genuine business partnership must not be equated with a nominee vehicle.
In its legal commentary, Thai law firm Closer Law identifies share-payment evidence, shareholders' financial capacity, actual control and side agreements as issues relevant to reviewing these structures. These are questions for a factual legal assessment, not a checklist that automatically proves guilt.
Having a local acquaintance, adviser or partner involved does not settle the question. What matters is whether the documents and actual conduct support the arrangement being represented.

What existing owners should check
Start with the rights already recorded, not the sales brochure. An independent Thai property lawyer should be able to reconcile the land title, company records and any registered lease or other rights with the buyer's understanding of the purchase.
A useful review should cover:
- Title and ownership: who is named on the land title, and what rights does the foreign owner personally hold?
- Funding: what evidence supports payment for the shares and property?
- Control: what do voting arrangements, director powers, loans and side agreements actually provide?
- Ongoing compliance: are corporate accounts, tax filings and any rental-operation permissions consistent with actual use?
- Exit and succession: what can be transferred or inherited, subject to which approvals, costs and legal restrictions?
An investigation is not a confiscation order. Equally, the fact that a structure has existed for years does not establish that it is lawful. Exposure depends on the facts, applicable legislation and any eventual legal findings. Criminal enforcement and disputes over rights cannot be reduced to a reassuring shareholding ratio.
Changing a nominee's name or preparing retrospective paperwork is not a substitute for a lawful resolution. Owners should take independent advice before restructuring, transferring shares or selling.
Leaseholders face a separate question
A registered lease grants contractual use rights; it is not the same as owning land through a company. Ordinary immovable-property leases are generally subject to the 30-year limit under Section 540 of Thailand's Civil and Commercial Code, with the terms and registration requiring individual review.
Promises described as “30+30+30” deserve particular care. In a March 2025 analysis, Addleshaw Goddard explained that Supreme Court case 4655/2566, decided in 2023, rejected advance arrangements for two additional terms that circumvented the statutory limit.
The firm stressed that the judgment did not overturn earlier decisions. It also explained that renewal after the initial term remains possible under the Code. The case is therefore not evidence of a new 2026 prohibition on every lease or every renewal.
For owners, the distinction is between the term registered now and assumptions about rights decades into the future. That distinction affects the holding period they can rely on and the interest they may eventually be able to sell.
FAQs
Is every company with 51% Thai shareholders illegal?
No. The issue is whether the ownership and conduct comply with the law, including whether Thai shareholders are acting as nominees. A percentage alone neither proves an offence nor resolves every ownership question.
Can authorities examine a structure set up years ago?
The September reporting explicitly describes examination of historical records. Age alone should not be treated as evidence that an arrangement is beyond scrutiny.
Does having a Thai partner protect a foreign buyer?
Not automatically. A genuine partner is different from someone holding shares on another person's behalf. Funding, rights, control and actual conduct need to be assessed together.
Are company ownership and leasehold affected in the same way?
No. Nominee enforcement concerns the substance of an ownership or business arrangement. A lease raises separate questions about registration, term, enforceability and renewal. Some transactions involve both, so all documents need review.
What should an owner planning to sell do first?
Establish exactly what can lawfully be transferred before making representations to a buyer. Legal uncertainty can affect marketability, costs and timing. Property values can fall, and an acceptable buyer may take time to find.
This article is general market and legal-context reporting, not advice on an individual ownership structure.
Sources and scope
DSI official statement; The Nation, 8 September 2026; Addleshaw Goddard legal analysis, 10 March 2025; Closer Law nominee-structure commentary. Reporting checked on 28 October 2026. Legal discussion is attributed commentary, not an independent translation of the court judgment or a determination about any owner.