End of Capital Gains Tax Relief for Multiple Homeowners: Analyzing the 5% Drop in Seoul Apartment Listings
Following the expiration of capital gains tax relief for multiple homeowners in May 2026, Seoul apartment listings dropped by 5%. This article analyzes the causes and implications of the resulting lock-in effect driven by tax rates reaching 82.5%.
Policy Shifts and Immediate Market Reactions
As of May 9, 2026, the temporary relief on capital gains tax for multiple homeowners officially ended as scheduled. This policy shift is having an immediate impact on the housing supply dynamics in key metropolitan areas, including Seoul. Market data indicates a 5% decrease in Seoul apartment listings compared to the previous week, immediately following the expiration of the tax relief.
Key Details of Reinstating Surtaxes
Under the government's mandate, starting with transfers on May 10, 2026, multiple homeowners in regulated areas are once again subject to capital gains tax surcharges. Two-home owners face an additional 20 percentage points above the base rate, while those with three or more homes face a 30 percentage point increase. To mitigate market shock, transitional measures only exempted transactions where contracts were signed by May 9 and finalized within a specified grace period.
Significance of the Listing Decline
The 5% drop in inventory signals the onset of a 'lock-in' effect within the market. Multiple homeowners who intended to sell utilizing the temporary tax benefits have concluded their transactions. The remaining owners appear to be withholding their properties or exploring alternative wealth transfer methods, such as gifting, to avoid the steep tax burden.
Structural Causes of the Lock-in Effect
Effective Tax Rates Reaching Up to 82.5%
With the reinstatement of the surcharges, the maximum effective tax rate for multiple homeowners selling properties in regulated areas can reach up to 82.5%, including local income taxes. This structural limitation, where the vast majority of capital gains are absorbed by taxes, serves as the primary disincentive for homeowners to liquidate their assets.
Exclusion from Long-Term Holding Deductions
Compounding the higher tax rates, the complete exclusion of multiple homeowners from the special deduction for long-term holding has accelerated the withdrawal of listings. Losing a deduction that previously covered up to 30% means that properties held for longer periods now face an exponentially higher tax liability, creating a direct barrier to sale decisions.
Market Outlook and Implications
Potential for Short-Term Transaction Cliffs
With a reduced supply from multiple homeowners, the Seoul apartment market is highly likely to experience a contraction in transaction volume over the coming months. Prospective buyers are adopting a wait-and-see approach, while sellers are retracting listings, potentially leading to a market driven by asking prices rather than actual transactions. This short-term supply-demand imbalance will likely maintain downward rigidity in housing prices.
Shift Towards an End-User Driven Market
Reflecting the policy intent to curb speculative demand and restructure the market around end-users, future policy focus will likely remain on supporting the market entry of first-time buyers and single-home owners. In a scenario where transaction cliffs become reality, the government's subsequent housing supply measures and potential adjustments to loan regulations will serve as critical variables shaping the market's trajectory.