One Month After Capital Gains Tax Suspension Ends: In-depth Analysis of Seoul Apartment Supply Lock-in and Price Fluctuations
Following the end of the capital gains tax suspension for multiple home owners in May 2026, Seoul apartment listings have plummeted below 60,000, creating a distinct market lock-in effect amidst policy uncertainty.

A Market Turning Point Triggered by Policy Shifts
The temporary suspension of heavy capital gains taxes for multiple home owners, which had been in effect since May 10, 2022, officially ended on May 9, 2026. Consequently, starting May 10, multiple home owners selling properties within regulated areas face an additional 20 to 30 percentage points on top of the base tax rate, while also losing access to long-term holding special deductions. This abrupt shift in the tax landscape has disrupted the short-term supply and demand balance in the Seoul apartment market, fostering a palpable wait-and-see sentiment.
Data-Driven Evidence of Market Lock-in
The most prominent indicator of this shift is the sharp decline in available apartment listings across the market.
Listings Drop Below 60,000 and Volume Contraction
Leading up to the expiration at the end of April 2026, a surge of "last-minute" listings appeared as sellers attempted to avoid the impending tax burden, temporarily boosting transaction volumes. However, since mid-May, the Seoul apartment market has exhibited the exact opposite trend. As multiple home owners withdraw their properties, total apartment listings in Seoul fell below the 60,000 mark as of June 8. With distressed properties largely absorbed and the price gap between buyers and sellers widening, overall transaction volume has noticeably contracted compared to the April peak.
Portfolio Reallocation Strategies by Multiple Home Owners
Faced with diminished net returns from sales due to higher tax rates, multiple home owners are exploring alternative tax strategies rather than simply holding. Instead of placing properties on the open market, there is a detectable shift towards transferring wealth to direct descendants or conducting low-priced transfers between related parties to distribute the overall tax burden. This further restricts the supply of normal market listings.
Price Fluctuations and Localized Upward Pressure
Despite the overall decline in transaction volume, concerns over supply shortages are being priced in, creating upward price pressure in specific areas. Particularly in highly sought-after Seoul districts with strong educational and transportation infrastructure, as well as reconstruction complexes with high developmental expectations, the scarcity of listings has solidified a seller's market, maintaining strong asking prices. If the lock-in effect persists structurally, there is a possibility that these localized price increases could spill over into adjacent neighborhoods.
Outlook and Policy Uncertainty
Currently, market participants are refraining from taking aggressive positions, closely monitoring potential policy changes. In particular, ahead of the anticipated announcement of the July tax reform plan, there are widespread expectations regarding whether additional supplementary measures addressing capital gains and comprehensive real estate holding taxes will emerge. Buyers remain cautious due to perceptions of peak pricing and loan regulation burdens, while sellers are equally hesitant, anticipating potential tax relief. In the short term, the current phase of 'strong asking prices amid low transaction volume' is expected to continue until macroeconomic indicators stabilize and the concrete outlines of the upcoming tax reforms are revealed.