Capital Gains Tax Calculator
Calculate Korean capital gains tax on real estate. Includes long-term holding deductions, single-home exemption, and multi-home surcharges. 2026 tax law.
About This Tool
The Capital Gains Tax Calculator estimates the tax you owe when selling real estate in Korea. It factors in acquisition cost, selling price, holding period, and applicable deductions to calculate your taxable gain and the corresponding tax under Korea's progressive CGT system.
Brokerage fees, acquisition tax, remodeling costs, legal fees, etc.
How to Use
- Enter the acquisition price (purchase price).
- Enter the sale price.
- Enter necessary expenses (brokerage fees, acquisition tax, remodeling costs, etc.).
- Select the holding period and number of homes, then check applicable options for regulated area and single-home exemption.
- Click Calculate to see your capital gains tax breakdown.
Frequently Asked Questions
What is capital gains tax?
Capital gains tax is a tax levied on the profit (capital gain) from selling assets such as real estate or stocks. The gain is calculated as sale price minus acquisition price minus necessary expenses. Tax rates vary based on holding period, number of homes owned, and whether the property is in a regulated area.
What are the conditions for single-home tax exemption?
If a household owns only one home, has held it for 2+ years (including 2 years of residence in regulated areas), and the sale price is 1.2 billion KRW or less, the capital gains tax is fully exempt. If the sale price exceeds 1.2 billion KRW, only the portion above 1.2 billion is taxed.
What is the long-term holding special deduction?
For properties held 3+ years, a percentage of the capital gain is deducted. The general rate is 2% per year up to 30% maximum. For single-home owners, combined holding and residence deductions can reach up to 80%.
What are the multi-home surcharge rates?
In regulated areas, owners of 2 homes face a 20%p surcharge on top of the base rate, while owners of 3+ homes face a 30%p surcharge. Multi-home surcharge taxpayers cannot claim the long-term holding special deduction.
What qualifies as necessary expenses?
Brokerage fees, acquisition tax, legal fees, interior/remodeling costs, and repair costs at the time of sale are recognized as necessary expenses. Higher expenses reduce the capital gain and thus the tax burden.
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How It's Calculated
Capital gains tax on real estate in Korea is calculated as:
1. Capital Gain = Selling Price − Acquisition Cost − Necessary Expenses (agent fees, renovation costs, etc.) 2. Long-term Holding Deduction: 2–4% per year for holding 3+ years (up to 30%), additional for 2+ years of residence (up to 80% total for 1-house owners) 3. Taxable Gain = Capital Gain − Long-term Holding Deduction − Basic Deduction (₩2.5M/year) 4. Tax = Taxable Gain × Progressive Rate (6%–45%) − Progressive Deduction
Multi-home owners face surcharges: +20% for 2 homes, +30% for 3+ homes (when regulated). 1-house owners with 2+ years holding and residence may be fully exempt up to ₩1.2B.
⚠️ Disclaimer
Capital gains tax rules for Korean real estate are complex and change frequently, especially regarding multi-home surcharges and regulated areas. This calculator provides rough estimates only. Consult a tax accountant before selling property.
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