Comprehensive Real Estate Tax (종부세): Who Pays and How Much?

Most Korean property owners are familiar with the annual 재산세 (jaesan-se, property tax) — a modest levy collected by local governments every July and September. Far fewer are prepared for the 종합부동산세 (jongbu-se), commonly abbreviated 종부세 — the national Comprehensive Real Estate Tax that specifically targets high-value properties and multi-home households. For those it applies to, 종부세 can generate annual tax bills in the millions of KRW, yet with the right understanding of the exemption thresholds and calculation methodology, many homeowners can legally minimize their exposure.

Who Pays 종부세?

종부세 applies annually to individuals and corporations whose total real estate holdings exceed specified assessed value thresholds as of June 1 of each year. The June 1 date is critical: if you buy property after June 1 or sell it before June 1, you avoid that year's 종부세 assessment for that property.

Owner Type	Exemption Threshold (공시가격 기준)
Single-home owner (1세대 1주택)	1,200,000,000 KRW (1.2 billion)
Multi-home owner (다주택)	900,000,000 KRW (900 million) combined

The thresholds apply to the official assessed value (공시가격 또는 공시지가), which is set by MOLIT and is typically 60–80% of market value. A property with a market value of 2 billion KRW may have an assessed value of 1.3–1.6 billion, depending on location and property type.

How the Tax Is Calculated

종부세 calculation involves multiple adjustment steps:

Step 1: Calculate the aggregate taxable assessed value

Add up the assessed values of all residential properties. For a single-home owner, use the individual property's assessed value. For multi-home owners, aggregate all properties.

Step 2: Subtract the exemption threshold

Taxable base = Total assessed value − Exemption threshold

For a single-home owner with an assessed value of 1.8 billion KRW:

Taxable base = 1.8B − 1.2B = 600 million KRW

Step 3: Apply the fair market value ratio (공정시장가액비율)

The taxable base is multiplied by the government-set fair market value ratio, currently 60% (2025):

Adjusted taxable amount = 600M × 0.60 = 360 million KRW

Step 4: Apply the tax bracket

Taxable Amount (After Adjustment)	General Rate
Up to 300 million KRW	0.5%
300 million – 600 million KRW	0.7%
600 million – 1.2 billion KRW	1.0%
1.2 billion – 2.5 billion KRW	1.3%
2.5 billion – 5 billion KRW	1.5%
5 billion – 9.4 billion KRW	2.0%
Above 9.4 billion KRW	2.7%

For the 360 million KRW taxable amount: the first 300M is taxed at 0.5% (1.5M) and the remaining 60M at 0.7% (420,000 KRW). Total 종부세 (before credits) = 1,920,000 KRW.

Step 5: Apply the 재산세 credit

To avoid double-taxation on the same property, the 재산세 (local property tax) already paid on the same property is credited against the 종부세 bill. This credit typically reduces the final 종부세 by 20–60% for most primary-residence owners.

Age and Long-Term Holding Credits (고령자·장기보유 공제)

Single-home owners who are elderly or have held the property for a long time receive additional deductions:

Criteria	Credit Rate
Age 60–65	20% of 종부세
Age 65–70	30% of 종부세
Age 70+	40% of 종부세
Held 5–10 years	20% of 종부세
Held 10–15 years	40% of 종부세
Held 15 years+	50% of 종부세

These credits are additive up to a maximum of 80% of the 종부세 amount (combined). An 80-year-old single-home owner who has lived in their home for 20 years would receive the maximum 80% credit, dramatically reducing their effective 종부세 bill.

Payment and Deferral

종부세 is assessed and billed in December of each year, with payment due by December 15. Those who face a tax bill over 2.5 million KRW may split the payment into two installments.

For elderly homeowners facing large bills on appreciated properties despite limited cash flow, a deferred payment system (납부유예) allows postponement until the property is sold — effectively converting the annual tax into a lien that is collected at disposal. This option requires application each year and is available to homeowners over 60 with income under a specified threshold.

Common Planning Strategies

• Time the sale before June 1: If you are planning to sell, completing the transaction before June 1 avoids that year's 종부세 assessment. Even one day matters.
• Household separation (세대분리): If adult children become legally independent households, their properties are no longer aggregated with parents' holdings.
• Gift to spouse: Some couples restructure ownership to distribute property value between two separate taxpayers, each with individual exemption thresholds — but gift tax implications must be carefully weighed.