Korea Comprehensive Real Estate Tax 2026 — Single vs Multi-Home Calculations and Saving Strategies

Key Summary - Korea's Comprehensive Real Estate Tax (jongbuse) is a national property tax that applies when the total publicly assessed value of your real estate exceeds the legal threshold on June 1 each year.

• For 2026, single-home owners get a basic deduction of KRW 1.2 billion, while multi-home owners get KRW 900 million. General rates range from 0.5%–2.7%, and surcharge rates for multi-home owners range from 0.5%–5.0%.
• Filing and payment are due from December 1 to December 15. If your tax bill is over KRW 2.5 million, you can pay it in installments over six months.
• Spouse co-ownership, registered long-term rental exclusions, and the temporary two-home exception can reduce your annual tax by KRW 1,000,000 or more.

What Is the Comprehensive Real Estate Tax — and How Does It Differ from Property Tax? The Comprehensive Real Estate Tax (CRET) is a national tax on people whose total real estate holdings exceed a set value. It is separate from local property tax, and the government determines your holdings based on what you own on June 1. - Local property tax: Charged to every property owner and paid in two installments, in July and September.

• Comprehensive Real Estate Tax: A national tax charged only when total holdings exceed the threshold, filed and paid once in December. Introduced in 2005 to support wealth redistribution and discourage speculation, the CRET changes from year to year with publicly assessed values and the assessment ratio. For 2026, the nationwide ratio averages around 69%, with the government keeping the realization ratio unchanged.

When Does a Single-Home Owner Start Paying CRET? Single-home owners become subject to CRET when their home's publicly assessed value exceeds KRW 1.2 billion. If a single home worth KRW 1.4 billion is held under one person's name, the taxable amount begins after the KRW 1.2 billion deduction, leaving KRW 200 million.

Step-by-Step Single-Home Calculation 1. Publicly assessed value KRW 1.4 billion – basic deduction KRW 1.2 billion = KRW 200 million

1. 1Apply 60% fair market value ratio → taxable base KRW 120 million
2. 2Apply 0.5% rate (for the up-to-KRW-300-million bracket) → about KRW 600,000
3. 3Subtract overlapping property tax → final CRET amount Long-term holding deductions (5 yrs 20%, 10 yrs 40%, 15 yrs 50%) and senior deductions (age 60/65/70 = 20/30/40%) can be combined, up to an overall cap of 80%.

How Much Heavier Is CRET for Multi-Home Owners? Multi-home owners become subject to CRET when their combined holdings exceed KRW 900 million. Owners with three or more homes, or two homes including one in a regulated zone, face surcharge rates of 0.5%–5.0%. | Taxable Base | General Rate | Surcharge Rate (3+ homes or 2+ in regulated zone) |

Is Spouse Co-Ownership Actually a Tax Saver? When a single home is jointly owned by spouses, each spouse is treated as a single-home owner. That gives each person a KRW 1.2 billion deduction, or KRW 2.4 billion combined. A KRW 2 billion apartment held by one spouse alone would leave KRW 800 million exposed to CRET, while joint ownership can bring the taxable amount down to zero. There is one important tradeoff: for the capital gains tax exemption under the 1-household-1-home rule, both spouses must individually meet the two-year residency requirement if you want both shares of the gain to qualify.

How to Register Rentals for the Exclusion (Hapsanbaeje) Homes registered as long-term private rental housing are excluded from CRET aggregation. As of 2026, the main requirements are: - Apartments cannot be newly registered (banned since the July 10, 2020 policy)

• Non-apartments (villas, multi-family, officetels) can register for the 10-year long-term plan
• Publicly assessed value caps: KRW 600M (metro) or KRW 300M (non-metro) Applications must be filed between September 16 and 30 each year through Hometax or your local tax office. Selling before the 10-year minimum period can trigger penalties, so rental registration only makes sense if you are confident you will hold the property long term.

Temporary Two-Home Exception — Keeping Single-Home Benefits If you buy a new home and sell your previous home within three years, you can keep the single-home benefits, including the KRW 1.2B deduction and general rates. The core conditions are: - Buy the new home only after holding the previous home for at least one year

• Sell the previous home within three years of buying the new one
• Failing either rule reclassifies you as a multi-home owner with retroactive penalty In regulated zones, the sale deadline is shortened to one year. If you are moving from one home to another, set the deadline from the purchase date and track it carefully.

Filing, Payment, and Installment Plans - Assessment date: June 1 each year

• Filing and payment window: December 1–15 each year
• Installments: bills over KRW 2.5 million can be split, with up to 50% deferred for six months
• Payment channels: Hometax, Witax, bank counters, credit card (1.0% fee) Hometax offers a CRET simulator, so you can estimate your liability before the official bill arrives. You can also check your property's exact assessed value through the Ministry of Land's Publicly Assessed Real Estate Value portal (realtyprice.kr).

Is CRET Going Away? Outlook for 2026 Since 2024, the government has raised the single-home deduction (KRW 1.1B → KRW 1.2B), gradually eased multi-home surcharges, and expanded rental exclusions. As of 2026, CRET remains in place and multi-home surcharges still apply, but the sharp reduction in regulated zones has lowered actual tax burdens by roughly 30% compared with 2022. Policy can still change quickly. Review your portfolio every May before the June 1 assessment date, check whether your title structure still makes sense, and reassess rental registration each year.

Five-Step Practical Tax-Saving Guide 1. Confirm assessed values: Pull every owned property from realtyprice.kr

1. 1Audit title structure: If a single home is held in one name, simulate switching to joint ownership (factoring in acquisition tax)
2. 2Evaluate rental registration: Check 10-year long-term registration if you own non-apartments
3. 3Use the two-home exception wisely: Mark the three-year sale deadline when switching homes
4. 4Use installment payments: If your bill exceeds KRW 2.5M, split it to manage cash flow > 💡 Insight from the field: Spouse co-ownership almost always helps with CRET, but it can make the capital gains exemption harder to use. Run both scenarios. If you plan to sell within a few years, single-name ownership may work out better over the full life of the investment.

Frequently Asked Questions (FAQ)

Q1. Are the Comprehensive Real Estate Tax and the local property tax the same?

A. No. Property tax is a local tax paid by all property owners. CRET is a national tax that applies only above the threshold.

Q2. What happens if I don't file the CRET return?

A. The tax office will still assess the tax. However, exclusions and deductions only apply when you file, so voluntary filing is often the better choice.

Q3. Does every single-home owner pay CRET?

A. No. CRET applies only when the assessed value exceeds KRW 1.2 billion. Below that, the tax is zero.

Q4. Is spouse co-ownership always better?

A. Usually yes for one home, but multi-home portfolios can sometimes benefit from single ownership. Run the full simulation, including capital gains.

Q5. Are pre-construction sales contracts (bunyangkwon) included?

A. The contracts themselves are not included. Once the balance is paid and title transfers, the property counts.

Q6. Does CRET installment payment carry interest?

A. The installment plan itself has no interest. Late payment, however, triggers a 3% surcharge plus a daily 0.022% delay penalty.

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