Enter the total government-assessed value of houses you own, your house-count category, and the fair market value ratio to estimate the taxable base, calculated tax, the senior/long-term holding tax credit for single-house households, and the total tax due including the special rural development tax.
Enter the total assessed value to calculate the tax.
This is a simplified estimate only, based on Korea's Comprehensive Real Estate Tax Act housing rules as amended in 2023. It applies a deduction of ₩1.2 billion for single-house households under sole ownership (1세대1주택 단독명의) and ₩900 million otherwise, with progressive rates of 0.5-2.7% for 2 or fewer houses, and 0.5-1.0% up to a ₩1.2 billion base plus 2.0-5.0% above that for 3 or more houses. For single-house households, it applies the senior tax credit (20-40% for ages 60-70+) and long-term holding tax credit (20-50% for 5-15+ years held), combined up to a maximum of 80%. It does NOT account for the property tax credit (재산세액공제) for property tax already paid on the same base, the tax burden cap (세부담 상한) versus the prior year, houses excluded from aggregation (rental housing, etc.), or the special filing for jointly-owned single houses (부부 공동명의 1주택 특례) — so your actual liability may differ. The fair market value ratio (공정시장가액비율) is set annually by government policy, so check the current year's official rate before entering it. Confirm your exact tax liability via Hometax (홈택스) or a licensed tax professional. This is not legal or tax advice.
Korea's comprehensive real estate tax (종합부동산세, often called "jongbuse") is an additional annual tax on top of regular property tax, applying only to homeowners whose total assessed housing value exceeds a fairly high threshold — making it a tax that most homeowners never encounter, targeted specifically at higher-value property holdings. This tool estimates your tax liability based on your combined property value, number of homes owned, and (for qualifying single-home owners) your age and holding period.
A deduction (1.2 billion KRW for single-name single-home owners, 900 million for other cases) is subtracted from your total assessed value, and the remainder is multiplied by the fair market value ratio (currently 60%, though adjustable in the calculator since government policy periodically changes it) to get your taxable base. Progressive rates apply to that base — 0.5% to 2.7% for owners with 2 or fewer homes, and steeper 2.0% to 5.0% rates on the portion of taxable base above 1.2 billion for owners with 3 or more homes. Single-home owners meeting age (60-70+) and holding period (5-15+ years) requirements can apply tax credits (up to 80% combined) that substantially reduce the calculated tax, and a rural special tax (20% of the final determined tax) is added for the total amount due.