Withholding Tax Thailand: 7 Property Buying Costs

Buying a condominium in Bangkok for 5 million THB and expecting the contract price to be your only expense? In practice, Thailand's Land Department collects at least three - and sometimes five - separate fees before you receive the keys. One of them, withholding tax, regularly surprises even seasoned international investors.

Beyond local costs, foreign buyers must also consider their home-country tax obligations. This article breaks down every fee with precise rates, worked examples, and clear attribution of who actually pays.

Quick answer

Withholding tax on property sales in Thailand equals 1% of the sale price or appraised value (whichever is higher) for corporate sellers; for individuals, a progressive personal income tax (PIT) scale applies, based on the Land Department's appraised value and years of ownership.
Transfer fee is 2% of the appraised value and is typically split 50/50 between buyer and seller by market convention.
Specific Business Tax (SBT) is 3.3% of the appraised value or sale price (whichever is higher), applied when a property is sold within 5 years of acquisition.
Stamp Duty is 0.5% and is charged only when SBT does not apply - never both simultaneously.
In Cambodia, the property transfer tax is 4% of market value, payable by the buyer.
Rental income in Thailand is taxed at progressive PIT rates (0-35%); in Cambodia a flat 10% withholding tax applies to gross rental income.
Neither Thailand nor Cambodia has a double taxation treaty with most European countries, including Poland. Foreign buyers must account for potential dual tax obligations in their home jurisdiction.

Options and scenarios

Scenario 1: Buying a new condominium in Thailand from a developer

An international investor purchases a Bangkok condominium for 5,000,000 THB (approximately 135,000 USD at current exchange rates). The property is brand new, sold directly by the developer.

Transfer fee 2%: 100,000 THB. By market convention, typically split equally - the buyer pays approximately 50,000 THB.
Withholding tax 1%: 50,000 THB - this falls on the seller (the developer as a corporate entity). The buyer does not pay it directly.
Specific Business Tax 3.3%: 165,000 THB - charged to the developer, as the sale is conducted within the scope of commercial activity.
Stamp Duty: not applicable, as SBT has been levied.

Total transaction cost for the buyer: approximately 50,000 THB (50% of transfer fee) plus optional legal fees (15,000-30,000 THB for due diligence).

Scenario 2: Reselling a condominium after 3 years (individual seller)

The same investor sells after three years for 6,000,000 THB. The Land Department's appraised value is 5,500,000 THB.

Transfer fee 2%: 110,000 THB (based on appraised value). Conventionally split 50/50.
Withholding tax: calculated on the appraised value divided by years of ownership (3 years), then applied through the progressive PIT scale. At 5,500,000 / 3 = 1,833,333 THB annual equivalent, the estimated total tax is approximately 175,000-220,000 THB, depending on the Land Department's detailed computation. Charged to the seller.
Specific Business Tax 3.3%: 198,000 THB (applied to 6,000,000 THB as the higher figure) - charged to the seller, as the sale occurs before the 5-year mark.
Stamp Duty: not applicable.

Total cost for the seller: approximately 428,000-473,000 THB, representing 7.1-7.9% of the sale price - deducted by the Land Department at the point of registration.

Scenario 3: Buying a condominium in Phnom Penh, Cambodia

An international investor acquires a condominium in Phnom Penh for 120,000 USD.

Property transfer tax 4%: 4,800 USD. By market practice, this is borne by the buyer.
Annual property tax: 0.1% of value above the threshold of 100 million KHR (approximately 25,000 USD). At a value of 120,000 USD, annual tax is approximately 95 USD.
No SBT, no withholding tax on purchase.

Scenario 4: Rental income - Thailand vs Cambodia

Thailand: Rental income is subject to progressive PIT at rates from 0% to 35%. A typical net rental yield on a 5 million THB condominium generates 200,000-250,000 THB annually. After the standard flat deduction of 30% of gross rental income for expenses, the effective PIT rate at this income level is approximately 5-10%.

Cambodia: A flat 10% withholding tax applies to gross rental income. If the tenant is a registered company, it withholds and remits the tax directly. The rate carries no progressivity.

Home-country obligations: Foreign residents remain subject to worldwide income tax in their country of residence. Rental and capital gains income from overseas properties typically must be declared locally. Where a bilateral tax treaty does not exist with Thailand or Cambodia, proportional credit mechanisms may reduce - but not always eliminate - dual taxation. Always consult a tax adviser specialising in cross-border real estate.

Comparison table

Parameter	Thailand - purchase from developer	Thailand - resale before 5 years	Cambodia - purchase	Cambodia - resale
Transfer fee	2% (typically 50/50)	2% (typically 50/50)	4% (buyer)	4% (buyer)
Withholding tax	1% (seller)	Progressive PIT (seller)	None	20% on capital gain*
Specific Business Tax	3.3% (seller)	3.3% (seller)	None	None
Stamp Duty	0.5% (if no SBT)	0.5% (if no SBT)	None	None
Annual property tax	0.02-0.1% (from 2020)	Same	0.1% above threshold	Same
Rental income tax	PIT 0-35%	Same	10% flat	Same
Double tax treaty coverage	Limited - verify by nationality	Same	Limited - verify by nationality	Same
Estimated total buyer cost	approx. 1-1.5%	approx. 1-1.5%	approx. 4-5%	approx. 4-5%

*Cambodia's capital gains tax rate is formally 20%, but market practitioners note that enforcement has been inconsistent. Confirm the current position with a local tax adviser before any transaction.

Risks and mistakes

1. Ignoring withholding tax when modelling exit returns. Many investors calculate ROI purely from the price differential, omitting transaction taxes that can reach 7-8% of the sale price. On a 5 million THB condominium, that exceeds 350,000 THB - enough to transform a profitable exit into a break-even outcome.

2. Failing to report overseas income at home. Investors who are tax residents in their home country are typically subject to worldwide income taxation. Rental income and property sale proceeds from Thailand or Cambodia must generally be declared locally. Tax authorities increasingly share information through the Common Reporting Standard (CRS), making non-disclosure a growing compliance risk.

3. Relying on verbal agreements about fee splits. In Thailand, the 50/50 transfer fee split is a market convention, not a legal requirement. A developer's Sale and Purchase Agreement (SPA) can legitimately assign 100% of the transfer fee to the buyer. Always review the SPA before signing.

4. Using outdated tax rates. Thailand periodically reduces the transfer fee (for example, from 2% to 1% for properties below certain value thresholds) as part of economic stimulus packages. Cambodia's tax framework is also evolving rapidly. Verify current rates with a qualified adviser before each transaction.

5. Confusing appraised value with market price. Thailand's Land Department applies its own appraised value, which may differ significantly from the agreed sale price. Withholding tax and transfer fees are calculated on whichever is higher - the transaction price or the appraised value. Do not assume the lower figure will be used.

6. Choosing an ownership structure after purchase. Whether you buy as an individual, through a Thai limited company, or via an offshore holding entity materially affects your tax exposure. Restructuring after acquisition is either expensive or legally constrained. Structure planning must happen before signing any agreement.

FAQ

What exactly is withholding tax on a property sale in Thailand?

Withholding tax is a tax withheld at source by Thailand's Land Department at the moment of ownership registration. For corporate sellers it equals 1% of the sale price or appraised value (whichever is higher). For individual sellers it is computed on a progressive PIT scale, applied to the appraised value divided by the number of years the property was held.

Who pays withholding tax - the buyer or the seller?

Withholding tax is the seller's liability. It is deducted from the transaction at the Land Department during registration. The buyer does not pay it directly, though it influences price negotiations in practice.

Does withholding tax apply when buying a new property from a developer?

Yes, but the developer (as a corporate entity) is the seller and bears the 1% withholding tax and the 3.3% Specific Business Tax. The buyer's direct costs are limited to their share of the transfer fee (typically 50%) and any legal fees.

What is the difference between Specific Business Tax and Stamp Duty in Thailand?

Specific Business Tax (SBT) at 3.3% applies when a property is sold within 5 years of acquisition or by a commercial entity. Stamp Duty at 0.5% applies only when SBT does not. The two are mutually exclusive - you will never pay both on the same transaction.

How much is the transfer fee in Thailand and who pays it?

The transfer fee is 2% of the Land Department's appraised value. Thai law does not specify which party must pay it. Market convention is a 50/50 split, but the Sale and Purchase Agreement (SPA) governs the actual allocation. Always check the contract terms.

What tax applies to rental income from a Thai condominium for a foreign buyer?

Rental income earned in Thailand is subject to progressive personal income tax (PIT) at rates ranging from 0% to 35%. Foreign individual owners may deduct 30% of gross rental income as a flat expense allowance before applying the tax scale. At typical rental yields on a 3-8 million THB condominium, the effective tax rate usually falls between 5% and 15%.

How is property taxed in Cambodia for a foreign buyer?

A foreign buyer purchasing a condominium unit in Cambodia pays a 4% transfer tax on the property value. Annual property tax of 0.1% applies to the portion of value exceeding 100 million KHR (approximately 25,000 USD). Rental income is subject to a flat 10% withholding tax on gross receipts.

Can withholding tax paid in Thailand be credited against home-country tax?

In many jurisdictions, even without a bilateral tax treaty, domestic tax law allows a proportional foreign tax credit for tax paid abroad. The credit is generally capped at the amount of home-country tax attributable to the foreign income. Retain all documentation proving tax payment in Thailand, as this will be required when filing your home-country return.

What are the total transaction costs for buying a condominium in Thailand?

For a buyer purchasing from a developer, total costs typically amount to 1-1.5% of property value (the buyer's share of the transfer fee plus legal fees). For a seller disposing of the property before 5 years, total costs can reach 6-8% of the sale price (withholding tax, SBT, and the seller's share of the transfer fee).

Is buying through a Thai company a tax-efficient structure for foreign investors?

A Thai limited company changes the tax profile: withholding tax on property sales is a flat 1% rather than progressive PIT, but the company is subject to corporate income tax (CIT) at 20% on profits. Structures relying on nominee Thai shareholders raise serious legal concerns under Thai law. Every situation requires individual analysis by a qualified local lawyer and tax adviser before acquisition.

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