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SUMMARY
Yes. Foreigners can lose control of Koh Samui villas when the land sits inside an illegal nominee structure, but properly documented leases, genuine Thai ownership and other lawful rights are not facing a blanket confiscation campaign.
The biggest change is not the law itself. It is enforcement. DSI and DBD are now screening large numbers of companies, tracing money, comparing shareholder finances and moving selected cases from database checks into searches and criminal investigations.
A 51% Thai, 49% foreign share split is no longer much comfort on its own. What counts is whether the Thai shareholders really invested, really control part of the company and receive an economic return that makes sense.
The source of funds has become one of the most important pressure points. If the foreigner supplied the money for the Thai shares, the land purchase and nearly everything else, investigators have a much easier path to questioning whether the Thai majority ever existed in substance.
Older villa companies are not automatically safer. A company can have held property for ten or fifteen years and still face scrutiny if its original funding, shareholder arrangements or control rights point back to nominee ownership.
The risk also extends beyond the company directly named on a villa contract. Developers can use separate entities for land, roads, common areas, construction and project management, so a nominee problem higher up the structure can affect buyers who thought their own paperwork was clean.
A registered 30-year lease usually carries much lower nominee risk because the foreigner openly accepts that someone else owns the land. The trade-off is obvious: the land right is time-limited, and promised years 31 to 90 should not be treated as though they are already secured.
Thai-spouse ownership is a different kind of exposure. It can be entirely lawful, but only if the Thai spouse genuinely owns the land; side arrangements that try to give the foreign spouse hidden ownership can undermine the structure.
Using a lawyer does not make a company safe by itself. The more useful test is whether an independent lawyer can reconstruct the share payments, land purchase, shareholder changes, loans, voting rights and bank flows and still make the ownership story add up.
The villas most exposed today are the ones where Thai shareholders were supplied mainly to create 51%, contributed little or nothing, have no meaningful control and receive little economic benefit. Those facts are much closer to the patterns authorities are actively investigating.
The practical downside is serious even when the state does not simply seize the property. An unlawful structure can lead to prosecution, compulsory restructuring, loss of corporate control or forced disposal of the land on a timetable the owner did not choose.
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Why are foreign Koh Samui villa owners worried right now?
Foreign Koh Samui villa owners have more reason to check their ownership structure today because Thailand is actively investigating nominee companies on the island, including companies that hold land and develop villas.
The current campaign is unusually concrete. The Department of Special Investigation and the Department of Business Development chose Koh Samui and Koh Phangan as the first locations for a proactive nominee-company screening program. They analyzed 11,426 registered companies, classified them by risk and sent 34 companies for deeper DSI investigation.
The investigations then moved from databases to physical searches. In one operation, DSI searched five targets across Samui and Phangan. One was a Bo Phut luxury-villa network that investigators said controlled 15 plots covering almost 98 rai. The land alone had an estimated value of about ฿1.57 billion, while the wider project was initially valued around ฿1.6 billion and may ultimately be worth several billion baht.
Investigators found roughly ฿1.99 billion moving through the main company’s bank accounts, with most incoming money transferred from overseas. Six connected companies held more than ฿2 billion in combined assets. DSI is now examining whether the Thai shareholders were genuine investors or were simply being used to make foreign-controlled companies appear Thai.
The worry is narrower than the headlines suggest. The real pressure is on villas whose land ownership depends on Thai shareholders who may struggle to prove that they actually invested in, owned and controlled the company.
| Current Koh Samui enforcement indicator | Scale | What authorities are checking | Why it matters |
|---|---|---|---|
| Companies screened in Samui and Phangan | 11,426 | Corporate risk patterns | This is systematic screening |
| Companies passed to DSI | 34 | Suspected nominee structures | High-risk cases are moving into investigation |
| Targets searched in one operation | 5 | Landholding and business networks | Authorities are going beyond paperwork |
| Land controlled by one investigated Bo Phut group | Almost 98 rai | Ownership and overseas funding | Large villa projects are directly involved |
| Bank flows through the main company | About ฿1.99bn | Source of capital | Investigators can compare ownership on paper with who paid |
Is Thailand actually taking villas away from foreigners in Koh Samui?
Thailand is currently targeting illegal foreign landholding structures in Koh Samui, but we have found no evidence of a blanket campaign to seize properly structured foreign-owned villas.
DSI has been quite explicit about this. During its Samui and Phangan operation, the agency said legitimate foreign investors complying with Thai law were not the target. Investigators were looking for corporate structures designed to hide foreign ownership or allow foreigners to run restricted businesses through Thai nominees.
“Foreign-owned villa” covers very different legal setups. One person may have a registered 30-year land lease and legally documented ownership of the house. Another may have paid for the land through a Thai company in which three nominal Thai shareholders supposedly own 51%.
Where authorities establish unlawful foreign landholding, Thai land law provides mechanisms to force the land out of that structure. That can ultimately mean losing control of the property.
So yes, losing a Koh Samui villa is possible in some cases. Treating every foreign villa owner as though the government were preparing to confiscate their home would still be a big exaggeration.
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Can foreigners legally own land in Koh Samui?
Foreign individuals generally cannot buy ordinary Koh Samui land in their own names, so most foreign villa buyers need another legal structure for the land underneath the house.
Thailand does have narrow exceptions. Under Section 96 bis of the Land Code, a foreigner who makes at least ฿40 million of qualifying investment can potentially receive permission to acquire up to one rai for residential purposes, subject to several conditions and government approval. This route exists, but it is nowhere near the normal way foreigners buy villas in Samui.
Certain promoted companies can also receive land rights connected with approved investment activities. Again, that does little for the typical person who simply wants a holiday or retirement villa.
Most buyers therefore end up looking at a registered lease, separate ownership of the building, superficies, a genuine Thai company, ownership by a Thai spouse, or a combination of those rights.
Those routes are not interchangeable. Some openly accept that the foreigner does not own the land. Others depend on a Thai person or Thai company genuinely owning it.
| Structure | Can the foreigner own the land directly? | What the foreigner actually relies on | Main risk |
|---|---|---|---|
| Ordinary foreign buyer | Generally no | Another legal structure | Direct freehold normally unavailable |
| Section 96 bis exception | Potentially | Government-approved qualifying investment | Narrow and conditional |
| Registered land lease | No | Right to use the land | Lease expiry |
| Foreign ownership of the house | No land ownership | Ownership of the building | Still needs secure land rights |
| Genuine Thai-majority company | Company owns it | Genuine Thai corporate ownership | Ownership must be real |
| Nominee Thai company | Effectively tries to bypass the restriction | Artificial Thai shareholders | Investigation and forced unwinding |
Is a 51% Thai, 49% foreign villa company safe?
A 51/49 Koh Samui company can be perfectly legitimate, but the percentages alone tell us almost nothing about whether the structure is safe.
The familiar idea is simple: foreigners hold 49%, Thai shareholders hold 51%, so the company appears Thai. That numerical split has been used across Thai property markets for years.
Current enforcement is looking underneath the percentages. Investigators want to know who paid for the Thai shares, whether the Thai shareholders could actually afford them, who controls major decisions, who receives the financial benefit and whether the company does anything beyond holding property for the foreign investor.
Imagine a foreign buyer provides ฿20 million for the land and villa. A lawyer then places 51% of the company in the names of Thai individuals who contributed almost nothing, receive no meaningful return and have no real influence over the company. Calling those people “majority owners” does not make their ownership economically genuine.
The Foreign Business Act also prohibits Thai nationals from helping foreigners bypass restricted-business rules by holding shares as nominees. Land law creates an additional problem when the arrangement is being used to place Thai land under foreign control.
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How can Thai authorities prove a Koh Samui villa company uses nominees?
Thai investigators can increasingly reconstruct who really owns a Koh Samui company by following the money, comparing shareholders across companies and checking who actually controls the property business.
DSI’s recent Samui investigations show investigators comparing bank transfers, shareholder finances, land titles, company accounts, directors, registered offices and networks of related companies.
One investigated Samui law office was linked by DSI to more than 150 companies. More than 101 of those companies reportedly held property or other assets acquired for roughly ฿795 million. More than 103 used the same office as their registered headquarters. Investigators said financial tracing suggested that the real capital behind many of the entities came from foreigners.
Authorities are also paying attention to whether Thai shareholders had enough money to buy their shares in the first place. The Department of Business Development has tightened documentation around capital contributions in foreign-linked companies, making bank histories and the real movement of funds increasingly important.
A reputable-looking incorporation file therefore offers less comfort than it once did if the financial story underneath it makes no sense.
| What investigators can ask | Cleaner answer | More dangerous answer | Evidence they can check |
|---|---|---|---|
| Who paid for the Thai shares? | Thai shareholder used own funds | Foreigner supplied the money | Bank transfers |
| Could the Thai shareholder afford the investment? | Wealth matches the stake | Investment looks implausible | Financial history |
| Who makes important decisions? | Genuine shared governance | Foreigner controls almost everything | Resolutions and contracts |
| Who receives the return? | Economics broadly match ownership | Thai shareholders receive little | Dividends and cash flows |
| Do the same Thai names appear repeatedly? | Normal investment activity | Same people appear across many foreign-backed companies | DBD records |
| Does the company have a real business? | Operating business | Mainly holds one foreigner’s property | Accounts and operations |
Is Koh Samui really a special target for nominee enforcement?
Yes. Koh Samui is currently one of the clearest priority areas in Thailand’s nominee crackdown.
DSI and DBD started their proactive screening program with Koh Samui and Koh Phangan before planning expansion into Phuket, Krabi, Phang Nga, Pattaya, Hua Hin and other tourism centers.
That choice makes sense when we look at what investigators are finding. Samui combines expensive land, rapid villa development, heavy foreign demand, construction companies, brokers, rental businesses and a large number of small Thai companies connected to foreign investors.
One recent Bo Phut investigation found not only a landholding company but a network covering development, construction, advertising, sales and project management. Another Samui investigation involved a hotel company operating since 2013 with roughly ฿45 million of registered capital and more than ฿2 billion in assets. Investigators are checking the original source of investment and whether the Thai shareholders really had the ability to pay for their shares.
There has also been enforcement against individual foreign business operators. DSI recently announced the arrest of a Singaporean woman in Samui over alleged involvement in a nominee-related business network.
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Could an illegal nominee company be forced to sell a Koh Samui villa?
Yes. If Thai authorities establish that land is being held unlawfully for a foreigner, forced disposal is one of the clearest property risks.
Sections 94 and 96 of Thailand’s Land Code are important here. Where a foreigner acquires land unlawfully, the law allows the Director-General to order disposal within a specified period, generally between 180 days and one year. If the land is not disposed of, the authorities can arrange the disposal.
Section 96 applies that mechanism where someone acquires land as an owner on behalf of a foreigner. That directly reaches the basic nominee scenario.
For a foreign villa investor, the ugly part is that the company may still be listed as the legal owner of the chanote while investigators conclude that the Thai ownership behind it was artificial.
A forced sale does not automatically mean the state takes the entire property without compensation. The owner may still receive proceeds from a disposal. But having to sell a ฿20 million or ฿50 million property on a government timetable is very different from choosing when to exit.
Could an old Koh Samui villa company still be investigated?
Yes. A Koh Samui company can be many years old and still face scrutiny today if authorities suspect that its Thai shareholders were nominees from the start.
Registration history does not provide immunity. One company examined in DSI’s recent Samui operation had reportedly operated a hotel since 2013. Investigators are still checking where the investment came from and whether its Thai shareholders had enough money to fund their stakes.
Older structures can also be harder to defend. Original shareholders may have disappeared. Bank statements may be difficult to obtain. Loans may have been badly documented. A lawyer who established the company may no longer be involved.
A ten- or fifteen-year track record can feel reassuring. Legally, though, it proves less than many owners assume about whether the original ownership structure would withstand a serious nominee investigation now.
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Is a 30-year lease safer than owning a Koh Samui villa through nominees?
For foreign landholding risk, a properly registered 30-year lease is usually much cleaner than a nominee company because the foreigner openly accepts being the tenant.
Thai law generally caps a lease of immovable property at 30 years per term. This has become more important after Supreme Court Decision 4655/2566, which dealt with a structure promising an initial 30-year lease plus two further 30-year renewals agreed in advance.
The court rejected the attempt to use those prearranged renewals to create what was effectively a 90-year lease. According to the published judgment, the parties had agreed to all three periods at the outset and rent for the future periods had already been paid.
That does not make the first properly registered 30-year lease invalid. It means buyers should be careful about valuing “30+30+30” marketing as though years 31 through 90 were already secured.
A foreigner can also potentially own the villa building while leasing the land underneath it. A registered superficies can strengthen that separation by giving someone the right to own buildings or structures on another person’s land.
The documents still need to fit together. Owning the house is much less useful if the right to occupy the land expires or cannot be transferred. Access, assignment, inheritance, building ownership and what happens at the end of the lease all matter.
A properly structured lease plus clearly documented building rights is usually easier to defend than a sham Thai-majority company. The trade-off is simple: the land right is time-limited.
| Issue | Properly registered 30-year lease | Nominee-style company |
|---|---|---|
| Foreign ownership openly disclosed | Yes | Often disguised |
| Main legal weakness | Time limit | Ownership legality |
| First 30 years | Can be registered | Not relevant |
| Years 31-90 | Cannot simply be assumed guaranteed | Not relevant |
| Nominee investigation risk | Low if genuine | Potentially high |
| Long-term control | Limited | Looks permanent until challenged |
| Main downside | Expiry | Forced restructuring or disposal |
Is putting a Koh Samui villa in a Thai spouse’s name safer?
Putting the land genuinely in a Thai spouse’s name can be lawful, but it only works cleanly when everyone accepts that the Thai spouse really owns the land.
The Department of Lands has specific procedures for land acquired by Thai nationals married to foreigners. The documentation can require confirmation that the purchase money belongs to the Thai spouse as separate property and that the foreign spouse has no hidden ownership claim over the land.
That creates a practical tension for some couples. The foreign spouse may provide much of the household wealth and casually think, “We bought this villa together.” Yet the land registration is deliberately structured around the Thai spouse being the actual owner.
If the marriage later breaks down, expectations and legal ownership can collide. And yes, that can get messy.
Side agreements designed to give the foreign spouse secret ownership are especially dangerous because they undermine the declaration used to register the land.
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Could a foreign buyer lose a Koh Samui villa because the developer has a nominee problem?
Yes. A foreign buyer can have a reasonably drafted contract and still get dragged into trouble if the developer or master landholding company has an illegal ownership structure.
This risk deserves more attention now because DSI’s current investigations include interconnected property networks rather than only one foreigner, one company and one villa.
The Bo Phut case shows the scale this can reach. Investigators described related companies involved in landholding, development, construction, advertising, project management and property sales. The main investigated group held 15 land plots and several connected companies shared the same project ecosystem.
An off-plan buyer may therefore need to check more than the company named on the reservation agreement. The master title may sit in another company. The road may cross separately owned land. Common facilities can belong to a related entity. The buyer’s lease might come from a landholding company whose shareholders were set up by the developer.
This becomes especially dangerous after substantial construction payments have already been made.
Does using a Koh Samui lawyer make a Thai company structure safe?
No. Using a lawyer can improve a Koh Samui villa transaction enormously, but the current investigations show why buyers should care about independence as much as professional involvement.
During the latest Samui searches, DSI investigated a law-office network allegedly connected with more than 150 companies. Investigators said more than 100 connected entities owned real estate or other assets and that the same office was used as the registered headquarters for more than 100 companies.
Those allegations remain subject to investigation and legal process. Even so, the pattern highlights a practical problem: the same professional can be the person selling the structure, creating the company, providing Thai shareholders and reassuring the foreign buyer that everything is normal.
For an existing company-held villa, we would want an independent Thai property lawyer to reconstruct the original share payments, land purchase, shareholder changes, loans, voting rights, company accounts, source of funds and actual economic relationship between the Thai and foreign owners.
The useful question is whether the company still makes sense when somebody independent follows the money. That is where things can get uncomfortable.
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Which foreign-owned Koh Samui villas look most exposed right now?
The most exposed Koh Samui villas today are the ones where the foreigner paid for nearly everything while Thai shareholders exist mainly on paper.
Several facts together would make us particularly uncomfortable. The company owns little beyond one foreigner’s villa. The foreign shareholder supplied practically all the purchase money. Thai shareholders were introduced by an intermediary. They invested little or nothing themselves. They receive little economic benefit. The foreigner controls every meaningful decision.
A genuine operating company looks different. Thai investors have real money at risk, participate in decisions, can explain why they invested and receive an economic return consistent with their ownership.
A properly registered lease also looks different. It gives the foreigner less permanent control, but there is little ambiguity about the fact that the land belongs to somebody else.
The grey area includes companies with real businesses but messy historic funding, projects in which developers created the ownership structure, and properties held by Thai spouses.
| Typical Koh Samui arrangement | Risk today | What we would check first |
|---|---|---|
| Thai shareholders supplied only to create 51% | Very high | Who actually paid for their shares |
| Foreign-funded shell company holding one villa | High | Whether Thai ownership has any economic reality |
| Developer-created Thai company | Medium to high | Developer, shareholder and landholding network |
| Real business with genuine Thai partners | Lower | Capital, governance and commercial activity |
| Genuine Thai-spouse ownership | Different risk | Whether everyone accepts the spouse truly owns the land |
| Registered 30-year lease | Lower nominee risk | Registration, expiry and building rights |
| Lease plus clearly documented building rights | Generally cleaner | Whether all rights remain enforceable together |
Should foreign Koh Samui villa owners restructure their Thai companies now?
Foreign villa owners should review questionable Thai-company structures now, but blindly changing shareholders can make a bad situation worse.
The useful first step is to reconstruct what really happened.
Who funded the original Thai shares? Where did the land-purchase money come from? Did Thai shareholders use their own capital? Have they ever received dividends? Who signs contracts? Who controls the bank account? Does the company run a genuine business? Are there shareholder loans? Did the foreign investor sign side agreements giving them nearly complete control?
Those answers tell us whether the company has a documentation problem, a fixable governance problem or a fundamental nominee problem.
Cosmetic changes are particularly risky these days. Replacing one Thai shareholder with another does not rewrite the source of the original purchase money. Moving funds around now cannot honestly prove that a Thai shareholder invested their own capital years ago.
Current DSI investigations are tracing money and connected entities rather than relying only on the latest shareholder list.
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Could foreigners really lose their Koh Samui villas?
Yes. Foreigners can genuinely lose control of Koh Samui villas when the land sits inside an illegal nominee structure, and that risk is more immediate now than it was when these arrangements were widely treated as routine.
Thailand has not suddenly outlawed foreign villa ownership. Foreigners can still hold legitimate leases, own buildings separately from land and use other properly structured rights. Genuine Thai companies and genuine Thai-spouse ownership also remain possible.
Koh Samui is currently one of the first places where the government is systematically testing who really sits behind supposedly Thai companies. Authorities screened 11,426 companies in Samui and Phangan, referred 34 for deeper investigation and then searched corporate networks holding substantial amounts of land and property.
For years, many foreign buyers could look at a company that had owned a villa without problems for a decade and conclude that the structure must therefore be safe. Today, longevity is weak evidence. If the Thai majority never really existed economically, the passage of time does not repair it.
The likely outcome can range from prosecution and compulsory restructuring to loss of corporate control or forced disposal of the land. The owner may recover substantial money in a sale and still lose what they thought they had bought: permanent control of a Koh Samui villa.
The answer is fairly sharp. Foreigners with properly documented legal rights are not facing a general threat to their villas. Foreigners whose ownership depends on Thai people pretending to own land for them have a much harder position in Koh Samui today.
OUR METHODOLOGY
This analysis tests whether Thai company-owned villas in Koh Samui are still safe for foreign owners by separating legal ownership from nominee risk. We looked at what authorities are doing now, what foreigners can legally own, how genuine Thai ownership differs from a nominee structure, how investigators test that difference, and what can happen if the structure fails.
For current enforcement, we gave the most weight to the Department of Special Investigation and Department of Business Development because they are the agencies actually screening companies, tracing funds, conducting searches and referring higher-risk cases for deeper investigation. The 11,426-company Samui and Phangan screening program, the 34 companies referred to DSI and the later searches were treated as one enforcement sequence rather than as separate proof of a broader crackdown.
We did not treat a 51% Thai, 49% foreign share split as evidence that a company is either safe or illegal. The more useful tests are economic: who supplied the capital, whether Thai shareholders could realistically fund their stakes, who controls important decisions, who receives the financial return and whether the company has a genuine business beyond holding property for one foreign investor.
The risk labels used above are comparative, not statistical. “Lower,” “high” and “very high” do not mean we calculated a probability of prosecution. They reflect how closely an ownership structure resembles the patterns currently being investigated and how heavily the foreign owner’s position depends on Thai ownership being accepted as genuine.
We treated leases, Thai-spouse ownership, genuine Thai companies and nominee companies as legally different structures with different failure modes. For leases, the analysis focuses on the ordinary 30-year ceiling and the danger of treating prearranged renewal periods as though they were already secured. For Thai-spouse ownership, the key issue is whether the Thai spouse truly owns the land and whether the funding and declarations used for registration are consistent with that.
We also separated direct villa-company risk from developer-network risk. Recent DSI investigations show why the company named on a buyer’s contract may not be the only entity that matters: land, roads, common areas, construction and project management can sit across several related companies.
Key sources used for this analysis include DSI and DBD on the proactive Koh Samui and Koh Phangan nominee screening program, DSI on the July 2026 Samui and Phangan searches and the Bo Phut villa network, DSI on nominee-property cases sent to prosecutors, DSI on the Samui nominee-related arrest, DBD rules on financial-capacity evidence in foreign-linked companies, the Department of Lands foreign-land guidance hub, Department of Lands guidance on the Section 96 bis residential-land exception, Department of Lands anti-nominee guidance, Department of Lands guidance on compulsory disposal, Department of Lands guidance for Thai nationals married to foreigners, and Thailand Board of Investment guidance on land rights for promoted companies.
Where an official DSI, DBD, Department of Lands or BOI source was available, we preferred it over law-firm articles, property websites and press rewrites. The conclusion therefore comes from the overlap between the legal framework and the way Koh Samui ownership structures are being tested in practice now.
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Fact-checked and reviewed by our local expert
Daniel Rouquette 🇫🇷
CEO & Co-Founder at Villa Finder
