How Foreigners Can Legally Buy a Villa in Koh Samui in 2026
Koh Samui remains one of Thailand's most sought-after islands for foreign buyers, yet 2026 has made the question of how you buy a villa here more important than the villa itself. A wave of nominee enforcement has swept through Surat Thani province, and the route you choose now determines whether your home is an asset or a liability. This guide sets out, plainly, what a foreigner can and cannot do, which structures are genuinely secure, and how to buy on Samui without stepping into the very trap the authorities are dismantling.
The one rule that shapes everything
Thai law does not allow foreign nationals to own land outright. The Land Code Act of 1954 is explicit, and no visa, investment sum, or marriage changes it. What the law does allow is a clean separation between the land beneath a property and the building that sits on it, together with several registered rights that give a foreigner long-term, legally protected use of both. Once you understand that a villa purchase is really a purchase of a building plus a right over the land, every legitimate option on Samui falls into place.
Why 2026 is different on Koh Samui
Samui is now a focal point of a nationwide crackdown on nominee ownership, the practice of using Thai nationals as "dummy" shareholders to hold land a foreigner actually controls. The Department of Business Development has flagged more than eleven thousand companies across Koh Samui and Koh Phangan, close to two-thirds of all registered firms on the two islands, and has singled out thousands as suspected nominee structures concentrated in property, tourism, and hospitality. Provincial operations have already led to arrests and land seizures, with search warrants approved through the Koh Samui Provincial Court. Detection is no longer manual: since October 2025 the DBD has run an AI screening system that cross-references company registries against land and tax records to spot Thai shareholders whose declared income cannot explain a multi-million-baht property. The practical message for buyers is simple. The old company workaround is being actively unwound, and agents on the island report that cautious buyers are pausing until they understand the safe routes. Those routes still exist, and there are several of them.
Route one: freehold condominium ownership
The cleanest form of ownership available to a foreigner on Samui is a freehold condominium unit. Under the Condominium Act, foreign buyers may hold full, inheritable title to a unit provided the building has not exceeded its 49% foreign quota, measured across the total saleable floor area. Title is registered in your own name at the Land Office, it does not lapse if you leave Thailand, and it passes to your heirs. Some developments market villa-style or low-rise units registered under condominium title, which is why certain buyers prefer them: they deliver a detached lifestyle with the security of direct freehold, though you should have your lawyer confirm the condominium registration is genuine before relying on it. The main constraints are the quota itself, which can be exhausted in popular projects, and the requirement that purchase funds arrive from overseas in foreign currency, recorded on a Foreign Exchange Transaction Form.
Route two: registered leasehold plus building ownership
For a standalone villa on its own plot, the standard and well-tested route is a registered leasehold over the land combined with separate ownership of the building. Thai law permits a lease of up to 30 years, and any lease longer than three years must be registered at the Land Office to be enforceable, at which point it is recorded against the title deed. A foreigner may then own the house itself outright, because the restriction applies to land, not to structures. Buyers often strengthen this with a registered right of superficies, which formalises building ownership on another party's land, or a usufruct, which grants a lifetime right to use and take income from the property. Assembled properly by an independent lawyer, this combination gives exclusive, registered, court-protected use for the full lease term.
The "30 plus 30 plus 30" promise is not what it seems
A great deal of Samui villa marketing still advertises leases as "renewable" for two further 30-year terms, implying 90 years of security. Treat this claim with real caution. Thai law guarantees only the first registered term. A renewal is a fresh contract that depends entirely on the landowner's willingness at that future date, and the Supreme Court has repeatedly held that pre-agreed automatic extensions are not enforceable. If the landowner sells, dies, or simply declines, a tenant relying on a verbal or contractual renewal promise has little recourse. A well-drafted lease can include a pre-emptive right to renew, compensation for the building on expiry, and a penalty for unreasonable refusal, but none of these converts a 30-year right into a guaranteed 90-year one.
Route three: the Thai company, and why it is now the risky choice
Using a Thai limited company to hold land was, for two decades, the informal workaround of choice on Samui. It is legal only where the Thai shareholders are genuine, contributing real capital and exercising real control. Where they are nominees holding shares on a foreigner's behalf, the structure breaches the Foreign Business Act and, increasingly, anti-money-laundering law, and it is precisely what the 2026 enforcement drive targets. The consequences on conviction are severe: forced disposal of the land, criminal penalties for the foreign buyer and the Thai nominees alike, and potential forfeiture of the property to the state. The procedural net has tightened too. Thai shareholders in higher-risk, land-holding companies can now be required to prove the source of their funds through bank statements, sign sworn statements as to the origin of their capital, and attend in-person interviews. Many genuine-looking arrangements simply cannot survive that scrutiny, which is why selling a company-held villa has become difficult as well as dangerous.
A more secure long-term structure
Because a bare 30-year lease offers no guaranteed continuity and the company route now carries criminal risk, a middle path has emerged: a securitised lease, in which the standard registered lease is reinforced with additional registered instruments such as a mortgage and a share pledge, held through a regulated offshore trust so the arrangement survives changes of beneficial owner and passes cleanly to heirs. This is the approach behind Better-than-Freehold™, which is built to deliver the long-term security and succession that buyers hoped to get from freehold, while staying firmly inside what Thai law recognises. It is not ownership of land, which no structure can lawfully give a foreigner, but it addresses the two weaknesses, enforceability and continuity, that the crackdown has exposed in the older models. Any structure of this kind should be reviewed by your own independent lawyer before you commit.
If you are married to a Thai national
Where a foreigner is married to a Thai citizen, the land may be registered in the Thai spouse's name. The foreign spouse is generally required to sign a declaration confirming the funds were the Thai spouse's own property, waiving any claim to the land itself. In 2026, these purchases increasingly trigger source-of-funds checks, so the declaration is not a formality. A foreign spouse can add a layer of protection by taking a registered lease or usufruct over the property, which secures a right to remain and, in the leasehold case, a defined interest that survives a change in the family's circumstances.
Buying safely on Samui: a short checklist
The mechanics matter as much as the structure. Before any money moves, work through the essentials:
- Instruct your own independent lawyer, not one recommended by the seller or developer, whose duty is to you alone.
- Verify the land title. Insist on a full Chanote (Nor Sor 4 Jor), the highest form of title, and have your lawyer check it at the local Land Office.
- For a condominium, confirm the current foreign quota in writing before reserving.
- Transfer purchase funds from overseas in foreign currency, in your own name, and obtain the Foreign Exchange Transaction Form, which the Land Office requires as evidence for freehold registration.
- Register the lease, superficies, or transfer at the Land Office; an unregistered long lease is not enforceable beyond three years.
- Treat any "guaranteed 90-year lease" or "just use a company, everyone does it" pitch as a warning sign, not a reassurance.
Costs and taxes to budget for
Beyond the purchase price, expect a Land Office transfer fee of 2% of the appraised value, stamp duty of 0.5% where it applies, and Specific Business Tax of 3.3% if the seller has held the property for fewer than five years, which is usually the seller's responsibility but is always negotiable. Independent legal fees for a villa purchase typically run from around THB 20,000 to THB 80,000 depending on complexity. Rental income from the property is taxable in Thailand under progressive rates, and depending on your own country of tax residence it may be reportable at home as well, so take tax advice early rather than after completion.
Frequently asked questions
Can a foreigner buy a villa on Koh Samui outright? Not the land. A foreigner can own the villa building outright and hold the land through a registered lease, superficies, or usufruct, or can own a villa-style unit in full freehold where it is registered under condominium title within the 49% foreign quota.
Is a company still a safe way to buy a villa on Samui? Only where the Thai shareholders are genuine investors with real capital and control. Nominee companies are illegal, are the specific target of the 2026 crackdown on the island, and now risk forced sale, prosecution, and forfeiture. Most lifestyle buyers neither need nor should use a company.
Are 90-year leases real? The first 30-year term is real and registrable. The further terms are contractual promises that Thai courts have declined to enforce as automatic, so they cannot be relied on as guaranteed tenure.
What happens to my villa when I die? Under a freehold condominium, the unit passes to your heirs, subject to quota rules for foreign heirs. Under a lease, continuity depends on how the lease and any trust or succession arrangement were drafted, which is one reason buyers increasingly look at structures designed to pass on cleanly.
Before you buy
Koh Samui is still very much open to foreign buyers, but 2026 rewards those who choose the right structure and punishes those who cut corners. Start from the legal routes that the Land Office actually registers, insist on independent advice, and be honest with yourself about long-term security rather than relying on renewal promises. Do that, and a Samui villa can be exactly the home or investment you intended.
This article is general information about buying property in Thailand and is not legal or financial advice. Thai property law is detailed and changes over time. Before buying or restructuring any property on Koh Samui, take independent advice from a qualified Thai lawyer who can assess your specific circumstances.
About the Author: Andrew Moore
Andrew Moore has been an active investor in Thai property since 2004. He is a Chartered Director and a Fellow of the Personal Finance Society. He has invested in and built properties in several countries since the late 90’s and first invested in Thailand 20 years ago. Having owned residencies in Bangkok, Samui, Phangan and Phuket he can offer a unique perspective on the island’s property markets together with past and future trends in both ownership and investor opportunities
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