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Tax Obligation, Seller Liability
What is Real Estate Withholding Tax in Thailand?
Fact-checked by a REMAX Thailand Real Estate Expert
The Definition
Withholding Tax (WHT) in Thailand is a tax deducted at source from the seller during property transfer at the Land Department, primarily on the gain from selling land, houses, or condominiums. For individuals, it is calculated progressively based on the government's appraised value, years of ownership, and personal income tax brackets. For companies, it is a flat 1% of the registered sale value or appraised value (whichever is higher).
The Thai Legal Context
Governed by the Revenue Code of Thailand (Sections 48 and 50), WHT on immovable property sales is administered by the Revenue Department and collected at the Department of Lands. Western buyers often expect a simple capital gains tax on profit, but Thailand uses the government's appraised value (updated every 4 years) and ignores actual inflation or improvement costs. Deductions are standardized by ownership years. Rules are identical for foreigners and Thai citizens when selling as individuals—the progressive WHT based on appraised value applies regardless of nationality.
Benefits & Risks
Advantages
- Encourages long-term holding with higher deductions (up to 92% for 1-year owners, 50% for 8+ years), reducing effective tax.
- Can be treated as a final tax, avoiding year-end filings if lower than other income taxes, with refunds available if over-withheld.
Risks & Disadvantages
- Complex calculation often exceeds simple 1-2% estimates, hitting 2-5%+ of value for mid-term holds based on conservative appraised values.
- No credit for actual costs like renovations unless filing a full tax return, trapping cash and inflating costs on short-term flips.
Showcase: How It Works
Let’s look at a real-world scenario to understand how Real Estate Withholding Tax is applied during a property transaction.
The Scenario
- A Thai individual sells a Bangkok condo with an appraised value of 6,000,000 THB after owning it for 3 years.
- First, deduct 77% (for 3 years) leaving 1,380,000 THB net income, divided by 3 to find yearly assessable income (460,000 THB).
- Apply tax brackets to find the yearly tax (~23,500 THB), then multiply by 3 years.
The Result
The calculation uses the government's appraised value and standardized deductions based on the 3-year ownership period, resulting in a progressive tax amount rather than a flat percentage of the market price.
Outcome:Seller pays 70,500 THB WHT (~1.2% of appraised value)
Frequently Asked Questions
Who pays WHT in a property sale?
The seller is liable, but the buyer typically withholds and remits it at the Land Department during transfer. Negotiate sharing in your contract.
Can I reduce WHT if I've owned the property long-term?
Yes, deductions change based on years of ownership. They rise to 50%+ after 8 years, slashing the progressive tax impact compared to short-term holds.
Is WHT the final tax I have to pay?
Often yes, if elected. This avoids year-end personal income tax returns. Compare it to your total income first, as you may be eligible for refunds if overpaid.
Related Terms
Why It Matters
Ignoring WHT can derail closings with unexpected seller payments, risking deal collapse. Proper handling saves thousands via accurate calculations and refunds, protecting your net proceeds.
💡 REMAX Pro Tip
Always get a free WHT estimate from the Revenue Department's online tool 2 weeks pre-transfer. If over-withheld, elect it as final tax or file PND90 for a refund within 30 days.
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