Thailand Property Sale Taxes: 7 Fees Every Investor Must Know in 2026
Selling a condominium in Bangkok for 5,000,000 THB can cost an international investor up to 315,000 THB in taxes and fees before a single baht is repatriated. Those who do not understand the cost structure hand over capital gains to tax authorities on two continents simultaneously. This guide breaks down every charge with precise rates, worked numerical examples, and cross-border tax implications.
Thailand applies a layered system where the tax burden depends on how long the seller has held the property, whether the seller is an individual or a corporate entity, and whether the entity conducts regular business. The rules are specific and the consequences of misreading them are expensive.
Quick answer
- Transfer fee: 2% of the Land Department's appraised value, typically split equally between buyer and seller
- Specific Business Tax (SBT): 3.3% of the sale price or appraised value (whichever is higher), borne by the seller when ownership is held for less than 5 years
- Stamp Duty: 0.5% of the sale price or appraised value, applies only when SBT does not (ownership held over 5 years)
- Withholding Tax (WHT): calculated on a progressive personal income tax scale for individuals; a flat 1% for Thai companies
- Total transaction costs for the seller range approximately 4% to 7.5% of the property value depending on holding period
- Double taxation treaty: Thailand and Poland signed a double tax agreement (DTA) in 1978, in force since 1983, allowing proportional credit for Thai taxes against home-country liability
- Holding property for more than 5 years eliminates the 3.3% SBT, producing savings of up to 140,000 THB on a 5,000,000 THB asset
Options and scenarios
Scenario 1, Selling a condominium within 5 years of purchase
An investor buys a condo in Pattaya for 3,000,000 THB and sells after 3 years for 3,500,000 THB. The Land Department's appraised value is 3,200,000 THB.
- Transfer fee: 2% of 3,200,000 THB = 64,000 THB (seller's conventional share: 32,000 THB)
- Specific Business Tax: 3.3% of 3,500,000 THB (sale price exceeds appraised value) = 115,500 THB, fully borne by the seller
- Withholding Tax: the appraised value is divided by the number of years held (3,200,000 / 3 = 1,066,667 THB per year). The progressive PIT rate is applied to this annual figure, and the result is multiplied by 3. Estimated total: approximately 105,000 to 120,000 THB
- Stamp Duty: not applicable (SBT takes precedence)
Total seller-side cost: approximately 263,000 to 268,000 THB, equivalent to around 7.5% of the sale price.
Scenario 2, Selling after more than 5 years of ownership
The same property, sold after 6 years of ownership.
- Transfer fee: 64,000 THB (seller's conventional share: 32,000 THB)
- Specific Business Tax: not applicable (ownership exceeds 5 years)
- Stamp Duty: 0.5% of 3,500,000 THB = 17,500 THB, borne by the seller
- Withholding Tax: appraised value divided by 6 years produces a lower annual base and a lower progressive rate. Estimated total: approximately 65,000 to 80,000 THB
Total seller-side cost: approximately 115,000 to 130,000 THB, equivalent to roughly 3.3% to 3.7% of the sale price. Compared with Scenario 1, the investor retains more than 130,000 THB in additional profit simply by crossing the 5-year threshold.
Scenario 3, Sale through a Thai company (Thai Co., Ltd.)
Some international investors hold Thai real estate through a locally registered company. In this structure:
- Withholding Tax: flat 1% of the sale price or appraised value (whichever is higher)
- SBT: 3.3% applies if the company has owned the property for less than 5 years
- Net income is additionally subject to Thai Corporate Income Tax at 20%
- Thai law requires that at least 51% of company shares are held by Thai nationals, which introduces separate legal and governance risks that must be carefully assessed before adopting this structure
Cambodia, a brief comparison
For context, Cambodia levies a property transfer tax of 4% of market value. The party responsible for payment is negotiable between buyer and seller. An annual property tax of 0.1% applies to the value exceeding 100 million KHR (approximately 25,000 USD). The Cambodian system is structurally simpler, but the absence of a double taxation treaty with most European countries, including Poland, creates additional tax exposure for international investors.
Comparison table
| Parameter | Thailand (under 5 years) | Thailand (over 5 years) | Cambodia | European resident |
|---|---|---|---|---|
| Transfer fee | 2% (conventionally split) | 2% (conventionally split) | 4% (negotiable) | Varies by country |
| Specific Business Tax | 3.3% (seller) | Not applicable | No equivalent | None |
| Stamp Duty | Not applicable (SBT applies) | 0.5% (seller) | No equivalent | None |
| Withholding Tax | Progressive PIT scale | Progressive PIT scale | 0% (individual) | None at source |
| Capital gains tax | Included in WHT calculation | Included in WHT calculation | 20% CIT (company) | 19-33% depending on country |
| DTA with Poland | Yes (1983) | Yes (1983) | No | Varies |
| Estimated total seller cost | Approx. 6-7.5% | Approx. 3-4% | Approx. 4-6% | 19%+ on net gain |
Risks and mistakes
1. Overlooking home-country tax obligations. International investors who are tax residents in their home country must typically declare income from the sale of foreign real estate. In many jurisdictions this is taxed at 19% or higher on the net gain (sale price minus documented acquisition cost and capital improvements). Tax paid in Thailand may be credited proportionally under applicable DTA provisions, but this requires correct documentation and filing.
2. Failing to document acquisition costs. Without the original purchase contract, renovation invoices, and bank transfer records, an investor cannot substantiate allowable deductions either in Thailand or in the home country. This directly inflates the taxable base.
3. Underreporting the transaction price. The Thai Land Department maintains its own appraised values. Where the contract price is materially lower than the official appraisal, authorities will use the higher figure as the tax base. Attempts to reduce liability through price manipulation expose sellers to penalties.
4. Miscounting the 5-year threshold. In Thailand, the holding period is measured from the date of registration with the Land Department, not the date of signing a reservation or purchase agreement. Different jurisdictions apply different counting rules. Both clocks must be tracked independently.
5. Proceeding without specialist tax advice. Withholding Tax in Thailand is collected by the Land Department at the point of transfer registration. It cannot be recovered after the fact without proper prior documentation. Additionally, tax authorities in many European countries increasingly cross-reference foreign income declarations through the CRS (Common Reporting Standard) automatic exchange of information framework.
6. Currency risk on repatriation. Selling in Thai baht and converting to a home currency at an unfavourable rate can eliminate a significant portion of the capital gain. The THB exchange rate against major European currencies has fluctuated by more than 15% over the past three years.
7. Investing in Cambodia without a DTA. As of 2026, Poland has no double taxation agreement with Cambodia. This creates a genuine risk of the same income being taxed twice. Some domestic relief provisions may apply, but their scope is limited and requires case-by-case legal analysis.
FAQ
Who pays the transfer fee when selling property in Thailand?
Thai law does not specify which party must pay. Market convention is a 50/50 split of the 2% transfer fee between buyer and seller. However, this is fully negotiable, either party can agree to absorb the full amount in the sale contract.
What is the Specific Business Tax rate in Thailand in 2026?
The Specific Business Tax stands at 3.3% (3% base tax plus a 10% municipal surcharge). It is borne by the seller when the property has been owned for less than 5 years. The tax base is the higher of the actual sale price or the Land Department's appraised value.
Do I need to pay tax in my home country on the sale of Thai property?
In most cases, yes. International investors who are tax residents in their home country are required to declare income from the sale of foreign real estate. The applicable rate depends on domestic legislation. Under a valid DTA, tax paid in Thailand can be credited proportionally against home-country liability, reducing the risk of full double taxation.
How is withholding tax calculated for an individual seller in Thailand?
The Land Department divides the property's appraised value by the number of years of ownership (up to a maximum of 10). The progressive Thai PIT rate is applied to the resulting annual figure (scale: 0% to 35%), and the resulting tax is multiplied by the number of years held. The longer the holding period, the lower the effective rate.
Is it worth waiting 5 years before selling Thai property for tax reasons?
From a tax perspective, yes, unambiguously. Crossing the 5-year threshold eliminates the 3.3% Specific Business Tax, replacing it with a 0.5% Stamp Duty. On a property valued at 5,000,000 THB, this difference amounts to approximately 140,000 THB retained by the seller.
What documents are needed for tax reporting on a Thai property sale?
Key documents include: the original purchase contract (with certified translation if required), the sale agreement, the Withholding Tax receipt issued by the Thai Land Department, bank transfer records evidencing the acquisition payment, and invoices for any renovations or capital improvements made during the holding period.
Does Cambodia have a double taxation treaty with European countries?
As of 2026, Cambodia has signed only a limited number of DTAs, and most European countries, including Poland, are not covered. This means income from the sale of Cambodian property may be taxable in both Cambodia and the investor's home country. Domestic relief provisions may partially apply but require individual legal assessment.
How much does property transfer cost in Cambodia?
Cambodia levies a 4% transfer tax on the market value of the property. Which party pays is a matter of negotiation. An annual property tax of 0.1% applies to the portion of value exceeding 100 million KHR (approximately 25,000 USD).
Can renovation costs be deducted from Thai property sale tax?
In Thailand's WHT calculation, the tax base is the Land Department's appraised value, not a net figure reduced by renovation costs. However, documented capital expenditures are relevant for home-country tax reporting, where they increase the allowable cost base and reduce the taxable gain subject to domestic capital gains tax.
How should Thai baht proceeds be converted for home-country tax reporting?
Most tax authorities require the use of the official central bank exchange rate from the last business day preceding the date on which income was received, typically the date of registration with the Land Department. Acquisition costs are converted using the rate applicable on the date each expense was incurred.
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