The Dilemma of Real Estate Tax Reform: OECD's Holding Tax Recommendation and Metropolitan Concentration

Background of Real Estate Tax Reform Discussions and OECD Recommendations

The recently published '2026 OECD Economic Survey of Korea' strongly urged a structural overhaul of Korea's real estate tax system. Currently, the ratio of real estate taxes to South Korea's Gross Domestic Product (GDP) stands at 3.0%, significantly higher than the OECD average of 1.6%. However, looking closely at the detailed tax composition reveals that holding taxes, which are evaluated to cause relatively less economic distortion, account for only 29.4% of total real estate tax revenue—barely half the OECD average of 56.0%. Conversely, transaction taxes generated during asset transfers, such as acquisition and capital gains taxes, exhibit a disproportionately high concentration of 50.4%.

The OECD pointed out that the center of gravity in taxation must gradually shift from transaction taxes to holding taxes in order to enhance residential mobility and reduce market friction. From a long-term perspective, it proposed transitioning the tax base from official assessed values to actual market prices, and applying higher tax rates to underutilized assets such as vacant homes and secondary residences. This is a policy recommendation aimed at securing market flexibility while simultaneously inducing the efficient allocation of idle real estate assets.

Economic Ramifications of Lowering Transaction Taxes and Raising Holding Taxes

Theoretically, reducing transaction taxes has the positive effect of lowering housing turnover costs, injecting liquidity into the market, and facilitating upward residential mobility for single-home owners. On the other hand, strengthening holding taxes performs a powerful function of structurally suppressing excess demand for utilizing housing as speculative assets. However, such an abrupt paradigm shift in the national tax system requires a highly cautious approach to ensure market predictability.

Recently, realistic concerns over sharp increases in holding taxes have surfaced, particularly centered around online communities and public sentiment. For elderly retirees who hold real estate assets without stable labor income, or for genuine single-home owner-occupiers, a hike in holding taxes could act as severe cash flow pressure. The OECD also cautioned against these economic side effects, explicitly recommending that the system be designed in stages over a considerable period to minimize the shifting of the tax burden to tenants and the economic damage to low-income households.

Urban Rent Crisis and the Resurgence of Highly Leveraged Buying by Millennials and Gen Z

While macroeconomic tax reform discussions have surfaced, the physical real estate market is facing another practical problem: a shortage of jeonse (lump-sum deposit rental) supply in urban areas. As the jeonse-to-purchase price ratio in major urban centers, including Seoul, continues its upward trajectory, the housing purchase sentiment of the 2030 younger generation—who feel long-term residential insecurity—is being strongly stimulated once again.

According to major financial sector data, the proportion of housing purchases by the younger demographic, accompanied by all available leverage including mortgages and personal loans, has been surging in recent quarters. This is analyzed not as a pursuit for simple asset accumulation or capital gains like in the past, but rather as a blind, defensive buying trend to avoid the uncontrollable uncertainties of the jeonse market. However, in the current environment where macroeconomic uncertainties surrounding the timing of benchmark interest rate cuts persist, highly leveraged housing purchases run a high risk of acting as a ticking time bomb that amplifies future household debt insolvency risks.

Localized Regulations and the Balloon Effect in Unregulated Areas

Government regulatory measures, deployed to agilely respond to localized overheating in specific metropolitan areas, are also creating unexpected dilemmas in the market. Recently, major new city areas like Dongtan, where housing prices have surged, were additionally designated as speculative overheating zones, immediately subjecting them to stringent regulations such as reduced mortgage limits and restrictions on the resale of pre-construction housing rights.

The biggest problem is that these pinpoint target regulations are triggering a classic balloon effect, transferring purchase demand to nearby unregulated areas. Investment and actual demand are suddenly concentrating in peripheral regions that are geographically adjacent to regulated zones but have relatively loose lending and tax rules. Consequently, abnormal short-term spikes in asking prices for properties in these areas are being observed. This ultimately disrupts the market's autonomous price adjustment mechanism and exacerbates the negative outcome of asset price distortions between regions.

The Need for Policy Consistency and a Long-term Roadmap

Currently, the South Korean real estate market is in a multifaceted situation where the anxiety of actual buyers due to the urban rent crisis, balloon effects derived from localized regulations, and social debates over tax equity, such as real estate holding taxes, are intricately intertwined. Sophisticated policy coordination among government ministries is essential to ensure that short-term market price stabilization measures do not collide with the macroeconomic direction of long-term tax reform.

As suggested by the OECD's recommendations, the macroeconomic direction of easing transaction taxes and strengthening holding taxes possesses sufficient economic validity. However, to successfully anchor this in the actual market without side effects, a clear and predictable long-term roadmap that everyone can agree upon must precede it. To prevent market participants from paying unnecessary policy uncertainty costs, policy execution through a transparent public deliberation process and broad social consensus is more urgently required now than ever before.