Do Foreigners Pay Capital Gains Tax in Thailand?

Thailand’s Tax System for Property Sales: The Basics

Unlike countries with a specific Capital Gains Tax rate, Thailand applies a combination of taxes that function similarly but are structured differently:

Tax	Rate	Basis	When Applied
Withholding Tax	1–3.5%	Declared or appraised value (higher)	At Land Office transfer
Specific Business Tax (SBT)	3.3%	Declared or appraised value	If held under 5 years
Stamp Duty	0.5%	Declared or appraised value	Replaces SBT if held over 5 years
Transfer Fee	2%	Appraised value	Always (split buyer/seller)
Personal Income Tax	0–35% progressive	Assessed net gain	Filed in annual tax return

In practice, the withholding tax and SBT/stamp duty are the primary costs. Personal income tax is theoretically owed on the gain, but the withholding tax is credited against it — and for most transactions, withholding tax effectively settles the tax liability.

Withholding Tax: How It’s Calculated

Withholding tax is collected at the Land Office at the time of sale. It is calculated using the higher of:

• The declared transaction price (what you agreed to sell for)
• The Land Department’s assessed (appraised) value (the government’s benchmark)

You cannot declare below the appraised value. If the appraised value exceeds your actual sale price (rare for prime Phuket property), you pay withholding tax on the appraised value.

Withholding tax rate formula:

The actual rate applied depends on the number of years of ownership and the number of years of use as a principal residence (for Thai residents). For non-resident foreigners, the calculation is:

1. Assess the “net income” from the property using a standard deduction based on years of ownership
2. Apply progressive tax rates (0–35%) to the net income
3. Divide by the number of ownership years to get annual income
4. The resulting tax is the withholding tax

Simplified practical result: For most non-resident foreigners selling at market price, withholding tax works out to approximately 1–3% of the sale price, with the precise figure depending on purchase price, sale price and holding period.

Specific Business Tax (SBT) vs. Stamp Duty

Specific Business Tax (SBT) at 3.3% applies if:

• You are selling within 5 years of purchase, OR
• The property is not your principal place of residence

Stamp Duty at 0.5% applies if:

• You have owned the property for 5 or more years, AND
• You have been registered as living there (less relevant for foreign investment properties)

For foreign investors who purchase for rental income rather than principal residence, the relevant comparison is:

Holding Period	Tax at Sale (excl. transfer fee)
Under 5 years	Withholding tax (~1-3%) + SBT (3.3%) = ~4.3-6.3%
Over 5 years	Withholding tax (~1-3%) + Stamp Duty (0.5%) = ~1.5-3.5%

Holding for 5+ years saves approximately 2.8% of the sale price in SBT. On a $300,000 property, that’s $8,400 in tax savings — a meaningful incentive for longer holds.

Transfer Fee: Who Pays?

The 2% transfer fee (based on the appraised value) is technically payable by the seller, but in practice it is often split 50/50 between buyer and seller through negotiation. Market convention in Phuket varies — some developer-to-buyer deals have the buyer paying all transfer costs; resale deals typically split them.

Tax Example: Foreign Investor Selling After 3 Years

Purchase price (2023): $200,000
Sale price (2026): $250,000 (25% gain)
Appraised value: $220,000 (Land Department assessed)

Tax	Basis	Rate	Amount
Withholding Tax	$250,000	~2%	~$5,000
Specific Business Tax	$250,000	3.3%	$8,250
Transfer Fee (50% seller)	$220,000	1%	$2,200
Total tax at sale			$15,450
Net gain after tax			$34,550

After a 3-year hold and 25% capital gain, the seller nets $34,550 — representing a 17.3% return on the $200,000 investment, or approximately 5.5% per year (before rental income).

Your Home Country Tax Obligations

Selling Thai property may also trigger tax obligations in your home country, separate from Thai taxes:

Country	Treatment
UK	Capital Gains Tax (18-24% on gain after annual exemption £3,000)
USA	Long-term CGT (0%, 15% or 20% after $250k/$500k home sale exclusion for residents)
Australia	CGT (50% discount if held over 1 year)
Germany	CGT applies if held under 10 years
UAE / Singapore	Generally no CGT
Russia	13-15% on gains, with exemptions for long holds

Thai withholding tax paid is typically creditable against home country tax via double taxation treaties (where they exist). Thailand has DTAs with approximately 60 countries including the UK, Australia, France, Germany and many others.

What This Means for Buyers

Thailand’s property tax regime is actually more favourable than many Western alternatives. There is no blanket CGT — the effective tax rate at sale for a 5-year hold is approximately 1.5–3.5% of the sale price versus 18-28% CGT in the UK or 15-20% in the USA.

Factor exit taxes into your ROI model from day one. A 5+ year hold is tax-optimal (Stamp Duty replaces SBT). Keep documentation of purchase costs — your acquisition price and transfer fees paid are deductible against your home country CGT calculation.

MORE Group provides exit cost modelling as part of our buyer advisory service.

Frequently Asked Questions

Does Thailand have capital gains tax? +

No separate CGT — property sale gains are taxed via withholding tax (1-3.5% of sale price) and Specific Business Tax (3.3% if held under 5 years). The effective rate is much lower than most Western CGT systems.

How much tax do I pay when selling a Phuket condo? +

Approximately 4-6% of sale price if selling within 5 years (withholding tax + SBT + transfer fee). Approximately 2-4% if selling after 5 years (withholding tax + Stamp Duty + transfer fee).

Does holding Thai property for 5 years reduce taxes? +

Yes significantly. After 5 years, Specific Business Tax (3.3%) is waived and replaced by Stamp Duty (0.5%) — saving 2.8% of the sale price. On a $300,000 sale, that's $8,400.

Do I pay tax in my home country when selling Thai property? +

Likely yes, depending on your country. UK, USA and Australia all tax foreign property gains. Thai withholding tax paid is typically creditable against your home country tax via double taxation agreements.

What is the transfer fee when selling Thai property? +

2% of the Land Department's appraised value. By convention, this is often split 50/50 between buyer and seller in resale transactions. Confirm cost allocation in your sale agreement.