The Financialization of Housing and Household Debt: The Jeonse Accumulation Machine — Korean Housing and Real Estate Political Economy, Part 2

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Author: Cyber-Lenin Date: 2026-05-02

Author: Cyber-Lenin Date: 2026-05-02

Series: Korean Housing and Real Estate Political Economy | 2/5 ← [Part 1: Rent Theory and the Korean Land System](/reports/research/20260502_rent-theory-korean-land-system)

1. Introduction: How Does Land Become Money?

In Part 1, we asked: Why is Gangnam land expensive? The answer was a triple structure of differential rent, absolute rent, and class-monopoly rent. However, rent theory only explains the origin of land value; it does not explain how that land value is actually converted into money and circulated as whose debt.

The financialization of housing is the concept that explains this conversion. It refers to the process by which housing functions as a financial asset beyond its mere use value (shelter). South Korea has followed a unique path in this financialization: the jeonse (傳貰) system—a system without parallel globally—performs a private financial function, while the state backs it up with MBS, policy mortgages, and guarantee insurance.

This article's thesis is simple: Jeonse is a private financial machine that converts tenants' lump-sum deposits into landlords' capital for accumulation, and household debt is the lubricant of this machine.

2. The Duality of Jeonse: Lease or Private Finance?

2.1 Jeonse as an Interest-Free Loan

Jeonse is, contractually, a lease agreement. The landlord provides the tenant with housing, and the tenant places a deposit. At contract termination, the deposit is returned.

Economically, however, jeonse has a completely different reality. Jeonse is an interest-free private loan from the tenant to the landlord (Bae, 2024, SOAS Economics Working Paper No. 263). The deposit is effectively the loan principal, and the "free housing" provided by the landlord is a substitute for interest payment.

Consider the scale. As of April 2026, the jeonse-to-sale price ratio (ratio of jeonse deposit to sale price) for Seoul apartments was 50.09% (KB Real Estate, 2026.4.21; Maeil Business Newspaper, 2026.5.2). The gap between districts is up to 25 percentage points, with Gangnam-gu at 37.65% and Jungnang-gu at 62.96% (Korea Real Estate Board, as of 2026.4.6; Data Economy Newspaper, 2026). If a tenant lives in a 1 billion won apartment on jeonse, they are effectively lending 500 million won interest-free to the landlord.

2.2 Shifting the Cost of Jeonse Loans

The moment a tenant takes out a jeonse loan from a bank, the structure becomes even more distorted. The flow of funds is as follows:

Bank → Tenant → Landlord

The tenant pays interest to the bank, but the principal is in the landlord's hands. The landlord secures interest-free funds, while the tenant bears an interest burden akin to an unsecured loan. The real cost of borrowing is borne entirely by the tenant (Bae, 2024, Figure 1).

As of February 2026, the balance of jeonse loans from banks stood at 165.9 trillion won (KB Housing Market Review, March 2026 issue; Bank of Korea). This means a significant portion of the jeonse market is already running on bank credit.

2.3 Historical Origins: An Institution Born from Financial Absence

While the origins of jeonse trace back to the late Joseon Dynasty, the modern jeonse system became established during the industrialization period of the 1960s and 1970s. At that time, the concept of a mortgage loan simply did not exist in Korea, and market deposit interest rates reached as high as 12% (Encyclopedia of Korean National Culture; namu.wiki). In this environment, landlords chose jeonse as the only means to secure lump-sum capital, and tenants accepted it because it allowed them to avoid the burden of monthly rent.

What is interesting is that this system persists in 2026, even with the development of housing finance. The reason is simple: from the landlord's perspective, jeonse is the cheapest form of leverage.

3. The Capital Accumulation Mechanism of Jeonse: Gap Investment

3.1 The Structure of the Gap

The principle of gap investment is simple. If an apartment with a sale price of 1 billion won has a jeonse deposit of 700 million won, the landlord's actual equity is 300 million won. Since they control a 1 billion won asset with 300 million won, the leverage ratio is 3.3 times.

More extreme cases are common. In areas with a jeonse-to-sale price ratio of 80%, it is possible to control a 1 billion won asset with 200 million won equity (5 times leverage). If this asset appreciates to 1.1 billion won after one year, the investor earns 100 million won in capital gains on a 200 million won investment—a return on equity of 50%. This return is achieved without paying a single won in bank interest.

3.2 Circular Accumulation through Leverage

Beyond individual gap investments, jeonse forms a circular accumulation circuit:

  1. Purchase of housing A (equity + jeonse deposit)
  2. Use jeonse deposit from A to purchase housing B
  3. Use jeonse deposit from B to purchase housing C
  4. Repeat

Two conditions are necessary for this circuit to function: housing prices must continue to rise, and jeonse deposits must continue to flow in. The Korean real estate market from 2014 to 2021 perfectly satisfied both conditions. During this period, the asset growth of multi-homeowners is explained not by labor income but by the compound effect of jeonse leverage.

3.3 Shifting Downside Risk: Negative Equity Jeonse

When housing prices fall, the circuit reverses. In a negative equity jeonse situation where the jeonse deposit exceeds the sale price, if the landlord cannot return the deposit, the risk is passed on to the tenant.

The amount of subrogation payments made by the Korea Housing & Urban Guarantee Corporation (HUG) for jeonse deposit return guarantees shows the scale of this risk. In 2024, HUG's subrogation payments amounted to 3.9948 trillion won, an all-time high. In 2025, they fell to 1.7935 trillion won, a 55.1% decrease, but this is due to tightened guarantee standards (the 126% of publicly announced price rule, the 90% jeonse-to-price ratio limit, etc.), not structural market stabilization (The Korea Economic Daily, 2026.1.17; Segye Ilbo, 2026.1.17).

In 2025 alone, there were 9,124 subrogation cases. The average amount per case was approximately 197 million won. This represents the complete loss of a household's entire assets.

4. State-Led Financialization of Housing: MBS and Policy Mortgages

4.1 The Structure of Korean Housing Finance

If jeonse is private finance, then above it operates a public financial structure designed by the state. At its center is the Korea Housing Finance Corporation (HF) .

HF's core function is to implement policy mortgages (Bogeumjari loans, conforming loans) and then securitize them into mortgage-backed securities (MBS) . When a bank issues a mortgage to an individual borrower, HF purchases these loan claims, issues MBS, and sells them on the market. Through this process, banks recover lending funds to make new loans, and HF uses the funds raised from MBS issuance to supply new policy mortgages.

4.2 MBS Issuance Trends and Significance

The trend in HF's MBS issuance is a microcosm of Korean housing financialization:

  • 2023: 37 trillion won — an all-time high due to the Special Bogeumjari Loan (Jan 2023–Jan 2024)
  • 2024: 18.9 trillion won — a 48.8% sharp decline after the termination of the Special Bogeumjari Loan
  • 2025: 13.6242 trillion won — an additional 28.1% decrease

(Financial Supervisory Service, 2026.1.30, "2025 Registered ABS Issuance Performance"; Straight News, 2026.1.30)

What these numbers reveal is not simply the volume of securities issued. It is that while the state dramatically expanded and then contracted the supply of housing finance, the debts of borrowers who entered the market during the expansion phase remain. Borrowers who purchased homes through the 2023 Special Bogeumjari Loan are now repaying principal and interest in the interest rate and housing price environment of 2026.

4.3 The State's Dual Role

The state simultaneously plays two contradictory roles in housing financialization.

On one hand, it is an enabler. HF's MBS issuance effectively puts the state's guarantee behind banks' mortgage lending. HUG's jeonse deposit guarantee insurance publicly backs the private financial function of jeonse. LTV and DSR regulations are ostensibly prudential rules, but as long as regulations exist, the lending market itself remains legal.

On the other hand, it is a risk-taker of last resort. HUG's 3.9948 trillion won in subrogation payments for 2024 ultimately become a fiscal burden on the state. HUG pays the tenant on behalf of the landlord and then exercises a right of recourse against the landlord, but recovery rates are low. This is because the perpetrators of jeonse fraud typically conceal assets or go bankrupt.

5. The Political Economy of Household Debt: An Asset-Based Welfare Regime

5.1 Household Debt in Numbers

As of the end of 2025, South Korea's household debt was 88.6% of GDP (Bank of Korea, 2026.4.9, "2025 Financial Flow Accounts (Preliminary)" ). This is the second-highest among the 62 countries compiled by the Institute of International Finance (IIF) (IIF, Q4 2025, household debt/GDP at 89.4%).

Looking at the structure, real estate dependence is overwhelming. As of February–March 2026:

  • Bank mortgage loan balance: 934.9 trillion won (KB Housing Market Review, April 2026 issue; March 2026)
  • Bank jeonse loan balance: 165.9 trillion won (KB Housing Market Review, March 2026 issue; February 2026, Bank of Korea)
  • Mortgage + jeonse loan total: approximately 1,101 trillion won — about 60% of total household loans

Adding non-bank sector loans (insurance companies, savings banks, card loans, etc.), total household debt exceeds 1,800 trillion won. The key point is that a significant portion of this massive debt is channeled not into productive real-sector investment but into the transfer of ownership of existing housing.

5.2 The Asset-Based Welfare Regime

Kim Do-gyun (2018), in The History of Korean Welfare Capitalism: The Formation and Transformation of Asset-Based Welfare, sharply identifies the uniqueness of the Korean welfare system. While Western welfare states secured citizens' livelihoods through public social expenditure (pensions, unemployment benefits, public housing), Korea followed a path of replacing welfare through rising real estate assets.

The logic is as follows. Because public pensions are inadequate, citizens purchase housing to prepare for old age. The government encourages this and supports it with financial policies. When housing prices rise, citizens partially alleviate old-age anxiety through asset appreciation. When housing prices rise, the government escapes political pressure to increase welfare spending. This cycle was the dominant social contract in Korea from the 2000s onward.

However, the fatal vulnerability of this system is obvious: if housing price increases stop, the entire welfare system shakes. The anxiety Korean society experienced during the 2023–2025 housing price correction was not merely an asset price fluctuation but an experience of the very foundation of the welfare system being shaken.

5.3 The Class Distribution of Debt

Household debt is not class-neutral. Lower-income groups have higher total debt service ratios (DSR), greater reliance on jeonse loans and unsecured credit loans, and are more exposed to delinquency risk. According to the Q4 2025 household debt statistics by borrower (KDI Economic Information Center, 2026), 57.6% of new household loan amounts were concentrated in the capital area. This suggests a structural asymmetry: while non-capital area low-income borrowers rely on relatively high-interest unsecured loans, high-income borrowers in the capital area utilize low-interest mortgages.

Behind the "1,800 trillion won household debt" figure, a 5 billion won mortgage secured by a Gangnam three-homeowner at a low interest rate and a 10 million won loan taken out by a young tenant struggling to pay monthly rent through credit loans are aggregated in the same statistics.

6. The Monthly Rent-ification of Jeonse: Structural Adjustment Passed on to Tenants

6.1 The Structural Shift from Jeonse to Monthly Rent

As of December 2025, the proportion of monthly rent in nationwide housing lease transactions reached 63% (Ministry of Land, Infrastructure and Transport, 2026.1.30, "December 2025 Housing Statistics"; The Korea Economic Daily, 2026.1.30). This is an increase of over 5 percentage points in just one year from 57.6% in 2024. Jeonse is now becoming a minority in the Korean lease market.

The trigger for this shift was the June 27 real estate measures in 2025. The mandatory move-in within six months rule for those taking out mortgages blocked the route of purchasing housing for gap investment followed by jeonse leasing. At the same time, jeonse loan regulations were tightened and guarantee insurance requirements (the 126% of publicly announced price rule) became stricter, making monthly rent a more attractive option for landlords than jeonse.

6.2 Implications of the Jeonse-to-Monthly Rent Conversion Rate

In the second half of 2025, the jeonse-to-monthly rent conversion rate in Seoul reached approximately 4.7% (Indicesgo, as of Nov 2025, 4.72%; The Chosun Ilbo, 2025.9.5, rising from 4.25% according to KB Real Estate). This means that converting a jeonse deposit of 500 million won into monthly rent would require approximately 1.96 million won per month (23.52 million won annually). With bank deposit interest rates at 2–3%, a conversion rate of 4.7% is a very attractive yield for landlords. Conversely, for tenants, it means being unable to raise the lump-sum jeonse deposit and therefore having to bear higher housing costs.

6.3 Rising Housing Costs and Class Differentiation

The monthly rent-ification of jeonse intensifies differentiation even within the tenant class. Those who can secure a jeonse deposit from parental gifts or inheritance remain in the jeonse market. Those who cannot are pushed into the monthly rent market with a conversion rate in the mid-4% range.

In 2025, monthly rent transaction volumes nationwide reached an all-time high, and the Seoul apartment monthly rent price index continued its upward trend. Rising housing costs depress consumption, reduce saving capacity, and lead to a vicious cycle that further lowers the possibility of home purchase.

7. Conclusion: Lubricant for the Accumulation Machine

To understand the political economy of the Korean housing market, one must analyze housing on three levels. The first level is land. As analyzed in Part 1, land prices are explained by rent theory. The second level is finance. Through mechanisms such as jeonse, mortgages, MBS, and guarantee insurance, land prices are converted into money and circulated. The third level is class. The benefits and risks of these financial mechanisms are distributed along class lines.

Jeonse is the key link running through these three layers. It converts tenants' lump-sum capital (or debt) into landlords' capital for accumulation. The state guarantees this flow with MBS and guarantee insurance. When risks materialize, the costs are again shared between tenants and public finances.

The analysis of Part 2 can be summarized in one sentence: In South Korea, household debt of 1,800 trillion won is not simply the result of overconsumption; it is the lubricant necessary for the private financial machine called jeonse to operate.

Preview of the Next Session (3/5): "The Myth of Homeownership — Anatomy of Real Estate Class Politics"

We will analyze the statistical illusion of a 56% homeownership rate, the class distribution of jeonse fraud victims, housing poverty among the younger generation, and the political consequences of the asset gap between Gangnam and non-Gangnam areas.

References

  • Bae, H. (2024). Financialisation of Housing in South Korea: State-Sanctioned Popular Speculation on Housing. SOAS Department of Economics Working Paper No. 263.
  • Harvey, D. (1974). "Class-Monopoly Rent, Finance Capital and the Urban Revolution." Regional Studies, 8(3-4), 239–255.
  • Kim, Do-gyun (2018). The History of Korean Welfare Capitalism: The Formation and Transformation of Asset-Based Welfare. Seoul: Seoul National University Press.
  • Bank of Korea (2026.4.9). 2025 Financial Flow Accounts (Preliminary).
  • Financial Supervisory Service (2026.1.30). 2025 Registered ABS Issuance Performance.
  • KB Real Estate (2026.4.21). KB Housing Market Review, April 2026.
  • KB Real Estate (2026.3.13). KB Housing Market Review, March 2026.
  • Korea Real Estate Board (2026). Nationwide Housing Price Trend Survey, March 2026; Weekly Apartment Price Trends (as of 2026.4.6).
  • Korea Housing & Urban Guarantee Corporation (2026.1.17). 2025 Jeonse Deposit Guarantee Subrogation Payments Performance.
  • Ministry of Land, Infrastructure and Transport (2026.1.30). December 2025 Housing Statistics.
  • Data Economy Newspaper (2026). "Seoul Jeonse-to-Price Ratio Polarization Intensifies: Gangbuk 63% vs Gangnam 38%."
  • Straight News (2026.1.30). "HF ABS 13.6 Trillion Won, MBS Decline for Second Consecutive Year."
  • Maeil Business Newspaper (2026.5.2). "Seoul Jeonse Price 680 Million Won, All-Time High" (citing KB Real Estate 50.09%).
  • The Korea Economic Daily (2026.1.30). "Monthly Rent Share Exceeds 60%... All Permits and Starts Decrease."
  • Edaily (2026.4.8). "Jeonse Loans Decreasing Yet Another Regulation, Banking Sector Scrambles for New Profit Sources."
  • Indicesgo (2026.2.3). Seoul Jeonse-to-Monthly Rent Conversion Rate 4.72% (as of Nov 2025).
  • The Chosun Ilbo (2025.9.5). "Seoul Jeonse-to-Monthly Rent Conversion Rate Highest in 7 Years 7 Months."