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Taxes When Buying and Selling a Condo in Phuket: 6 Numbers Every Investor Must Know
Buying a freehold condominium in Phuket looks straightforward on paper: choose a unit, sign a contract, wire the funds. But between the price on the developer's brochure and the actual amount that leaves your account, there is often a significant gap — one that most investors only discover at the Land Department registration desk.
Market data suggests that over 80% of buyers never have their developer contract reviewed by an independent lawyer. The consequences are predictable: overpaying on taxes, losing legal protections, and facing unpleasant surprises when it comes time to sell. Below, we break down every mandatory payment — from the moment you commit to a unit through to your eventual exit — and show exactly where money is lost.
Quick Answer
- Transfer Fee — 2% of the registered value, applied to every freehold transaction.
- Specific Business Tax (SBT) — 3.3%, payable by the developer (or by an individual seller who has owned the property for fewer than 5 years).
- Withholding Tax — 1% when purchasing from a developer (corporate entity); when selling as an individual, calculated using a progressive income tax scale.
- Stamp Duty — 0.5%, replaces SBT when the seller has held the property for more than 5 years.
- Land and Building Tax — 0.02% for residential use; 0.3% for commercial use (including leasehold units).
- Under Thai law, a buyer purchasing from a developer is legally required to pay a maximum of 1% (their share of the Transfer Fee) — not 6.3%, and not a 50/50 split of all taxes.
Scenarios and Options
Scenario 1 — Buying from a Developer (Freehold)
The total tax burden on a new freehold purchase from a developer is 6.3% of the property value. Here is how it breaks down:
- Transfer Fee 2% — under the standard contract approved by the Ministry of Interior, this is split 50/50 between buyer and seller. The buyer's legal share is therefore 1%.
- SBT 3.3% — the developer's obligation. Developers are exempt from VAT but pay SBT in its place.
- Withholding Tax 1% — a portion of the developer's corporate income tax, withheld at the point of registration. This is also the seller's responsibility.
The buyer's legal liability: 1%. On a unit priced at 10 million THB, that is 100,000 THB — not 630,000.
The problem is that many Phuket developers insert clauses into their contracts stating that 'all taxes and fees are borne by the buyer' or that costs are split 50/50. Some even add Stamp Duty (which does not apply to corporate transactions) and push the stated burden toward 6.8%. This is a direct violation of standard Thai property law.
Experience consistently shows: the further from Bangkok, the more frequently contracts deviate from the legal framework. An independent legal review of a contract typically costs around 10,000 THB per hour; a full contract audit with written commentary runs approximately 25,000 THB. On a 10-million-THB unit, the potential saving is 530,000 THB — a return on legal fees of roughly 20x.
Scenario 2 — Ownership and Annual Costs
Once you own the unit, recurring costs begin:
- Sinking Fund — a one-time reserve contribution paid at purchase. For premium projects, this can reach 300,000–500,000 THB or more depending on the development.
- Maintenance Fee — paid annually in advance for communal area upkeep. Typical range: 40–80 THB per sqm per month for standard projects; significantly higher in the luxury segment.
- Land and Building Tax — introduced in 2020. For residential property valued under 50 million THB, the rate is 0.02%. For commercial use (including rental income), the rate is 0.3%.
The leasehold trap. Any unit acquired on a leasehold basis is automatically taxed at the commercial rate of 0.3% — regardless of whether the owner lives there personally. The legal owner of record is a corporate entity, and a company cannot hold property for 'personal residential' purposes. Compared to a freehold unit used for personal residence, the tax rate is 15 times higher.
Additionally, if an individual holds 10 or more freehold units, the local district office may reclassify the use as commercial and recalculate the tax at 0.3%. Appeals are possible but require documented evidence of non-commercial use.
Scenario 3 — Selling on the Secondary Market
Consider a unit purchased for 30 million THB and sold a few years later for 33 million THB — an apparent gain of 3 million THB. The exit costs, however, can consume that entire profit.
Costs at the point of sale:
- Agent commission — typically 5% or more on the secondary market. On 33 million THB, that is a minimum of 1.65 million THB.
- Transfer Fee 2% — typically negotiated 50/50 between buyer and seller on resale transactions.
- SBT 3.3% — applies if the seller has owned the property for fewer than 5 years. After 5 years, this is replaced by Stamp Duty at 0.5%.
- Withholding Tax — calculated using the progressive personal income tax scale, adjusted for depreciation. This is not a flat 1% as in a developer purchase. Crucially, this tax is levied even if the property is sold at a loss.
One genuine advantage: taxes paid at the Land Department upon registration are considered final and fully discharged. There are no subsequent demands from the Thai Revenue Department for the same transaction.
Comparison Table
| Tax / Cost | Buying from Developer (Freehold) | Selling — Under 5 Years Held | Selling — 5+ Years Held | Leasehold Ownership |
|---|---|---|---|---|
| Transfer Fee | 2% (buyer pays 1% legally) | 2% (negotiated 50/50) | 2% (negotiated 50/50) | 2% at purchase |
| Specific Business Tax (SBT) | 3.3% — paid by developer | 3.3% — paid by seller | Not applicable | Not applicable |
| Stamp Duty | Not applicable | Not applicable | 0.5% | Not applicable |
| Withholding Tax | 1% — paid by developer | Progressive scale (personal) | Progressive scale (personal) | 1% at purchase |
| Land and Building Tax (annual) | 0.02% (residential) | — | — | 0.3% (commercial rate) |
| Buyer's legal tax burden | 1% | — | — | — |
| Total transaction cost | ~6.3% (mostly on developer) | ~7.3–8%+ | ~4.5–5.5%+ | Higher annual holding cost |
Main Risks and Mistakes
1. Signing the contract without independent legal review. Developers routinely shift up to 5.3% in taxes onto buyers through contract language. Once signed, recovering those funds is extremely difficult.
2. Making a full payment before EIA approval and building permits are issued. Some developers collect what amounts to a full first payment — not a returnable deposit — before the necessary permits are in place. Thai law permits only a refundable reservation deposit at this stage. Non-refundable deposits of 40% or more at pre-permit stage represent a serious legal violation and should trigger immediate caution.
3. Trusting developer-commissioned due diligence. A due diligence report ordered and paid for by the developer is a marketing document, not a legal guarantee. It reflects the status on a specific date only — title encumbrances can be registered, and shareholders can change, the very next day.
4. The flipping illusion. A price appreciation of 10% over 3–5 years, when offset against the combined costs of purchase, holding, sale, and agent commission, can result in zero or negative net returns. Model your exit costs before entering any deal.
5. Unusually low maintenance fees are a warning sign. If a project with a hamam, fitness centre, and multiple pools charges only 30–50 THB per sqm per month, the reserve fund will be insufficient within years. The inevitable result: deteriorating common areas and falling resale values.
6. The 49% freehold governance problem. Foreign buyers can collectively own a maximum of 49% of a condominium's total floor area under freehold. The remaining 51% stays with the developer, often on leasehold terms. At co-owners' meetings, the developer can block any vote to change the management company, raise service standards, or pass any resolution they find inconvenient.
FAQ
Is the buyer legally required to pay 6.3% when purchasing from a developer? No. Under the standard contract approved by Thailand's Ministry of Interior, the buyer is responsible only for their share of the Transfer Fee — 1%. All other transaction taxes are the developer's obligation.
What should I do if the contract places all taxes on the buyer? Before signing, negotiate with the developer and cite the standard contractual framework. If the contract has already been signed, consult an independent lawyer before proceeding to Land Department registration. Such clauses are inconsistent with standard Thai property regulations.
When does Stamp Duty replace SBT? When an individual seller has held the property (calculated from the date of official registration, not from the first payment) for more than 5 years. The rate is 0.5% instead of 3.3%.
Is Withholding Tax at sale a flat 1%? Only when the seller is a corporate entity. For individual sellers, it is calculated on a progressive personal income tax scale, adjusted for depreciation and years of ownership. It can be substantially higher — or occasionally lower — than 1%.
Do I owe Withholding Tax if I sell at a loss? Yes. The Thai formula uses assessed value and depreciation tables, not the actual difference between your purchase and sale price. A nominal loss does not eliminate the liability.
What Land and Building Tax rate applies to a leasehold unit? 0.3% — the commercial rate — even if the owner resides in the property personally. The legal title-holder is a company, and companies cannot hold property for personal residential use. By comparison, a freehold unit used as a primary residence is taxed at just 0.02%.
Do I need a Thai tax identification number if I am not a resident? Yes, if you derive income from Thailand — whether from rental income or a property sale. Physical presence in Thailand is not required to obtain a TIN; property documentation is generally sufficient.
What is the standard agent commission on resale properties? At least 5%, and often higher. Agents have limited incentive to work resale transactions at lower rates, so finding a motivated agent at 3% is genuinely difficult in today's market.
Can the developer unilaterally increase the maintenance fee? Formally, no — changes require a vote at a co-owners' meeting. In practice, if the developer controls 51% or more of votes, they can pass any resolution unilaterally.
Is due diligence necessary for a unit in a completed condominium? Always, at minimum a basic review. The scope depends on the asset: a resale unit with clean title may require only a standard title check, while off-plan projects or land-heavy structures warrant a comprehensive legal audit.
The core takeaway for any investor: your legal tax obligation when buying from a developer is 1%, not 6.3%. On a 10-million-THB unit, the difference is 530,000 THB — enough to cover dozens of legal consultations. Never sign a contract without understanding the tax allocation. When planning an exit, budget a minimum of 7–10% in combined costs (taxes plus agent fees) and calculate your net return against your actual holding period.
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