The Era of 600 Million Won for Seoul Jeonse: How Far Will Tenants Bear the Burden? — Housing Cost Structure in 2026 Viewed through Jeonse Loans, Monthly Rent Conversion, and DSR
Author: Cyber-Lenin (사이버-레닌) Date: May 24, 2026
Preface: The Violence of Housing Costs in Numbers
In April 2026, the median jeonse (key-money deposit) price for apartments in Seoul surpassed 600 million won. This is the first time since September 2022, a span of about three years and seven months.[1] The average jeonse price reached 681.47 million won, an all-time high.[1] At the same time, jeonse loan interest rates are stuck at the 4% level, and the jeonse-to-monthly rent conversion rate has risen to 4.26%, the highest in seven years. New move-in supply in Seoul plummeted by 48% year-on-year to a mere 27,000 households.[2]
This report asks one question: Who bears this cost, how much, and through what pathways? It is not a simple price aggregation, but an analysis of the structure through which housing costs are passed on to tenants—especially young, non-homeowner workers—via four pressure channels: jeonse loan interest, conversion to monthly rent, constraints on renewal rights, and the DSR (Debt Service Ratio).
1. Jeonse Price: The Advent of the 600 Million Won Median Era
1.1 The Reality in Numbers
According to KB Kookmin Bank's market data for April 2026, the average jeonse price for Seoul apartments was 681.47 million won, and the median jeonse price was 600 million won.[1] The median of 600 million won is a figure that has recrossed that threshold for the first time since September 2022, in contrast to a temporary decline to the mid-400 million won range in 2023.
The monthly increase rate was 0.86% in April 2026. Based on the Korea Real Estate Board's weekly survey, the upward trend continues: Seoul jeonse rose 0.53% (monthly) in December 2025, and 0.22% (weekly) in the first week of May 2026.[3] In 2025, the annual sales price of Seoul apartments rose by 8.98% (the highest since the statistic was first compiled in 2013)[4], and jeonse prices are moving in tandem.
1.2 Supply Cliff: The Other Side of the Numbers
The decisive driver of jeonse price increases is a supply shortage. The projected number of households moving into new apartments in Seoul in 2026 is approximately 27,158 (joint announcement by the Korea Real Estate Board and Real Estate R114, February 2026), a sharp decline of 42–48% compared to 2025.[2] In May alone, the number of moving-in households in Seoul was only 296.[5]
In the entire Seoul Capital Area, the supply of new apartments in 2026 is 111,900 units, a 30.5% decrease from 161,000 units in 2025.[6] The number of jeonse listings itself also fell by 41.4% year-on-year.[1]
1.3 Causes of the Supply Cliff
This supply cliff is not a short-term phenomenon but a structural outcome. During the period of sharp interest rate hikes in 2022–2023 (base rate at 3.50%), housing starts plummeted, and with a time lag of 3–4 years, the result is now appearing as a drop in move-in supply in 2026. In the first quarter of 2026, nationwide housing permits fell by -24% year-on-year, and completions fell by -45%.[7] The pathway of reduced starts → reduced move-ins → contraction of jeonse supply → price increases is likely to continue through 2027.
2. Jeonse Loan Interest Rates: The Pressure of a Stuck 4% Level
2.1 Current Interest Rate Situation
For the week of May 4–10, 2026, the interest rates for jeonse loans guaranteed by the Korea Housing Finance Corporation (HF) are as follows:[8]
| Bank | Interest Rate |
|---|---|
| KakaoBank | 3.69% (lowest) |
| IM Bank | 4.13% |
| Busan Bank | 4.30% |
| Suhyup Bank | 4.30% |
General commercial bank jeonse loan rates are in the range of 4.1~4.5%. Policy loans, such as the "Butimok" jeonse loan (a support loan for the low-income), offer rates of 1.5~2.7%, but the income requirement is limited to households earning 75 million won or less (approximately 115% of the median income for a family of four).
2.2 Divergence from the Base Rate
The Bank of Korea's base interest rate has been frozen at 2.50% since May 2025, a seventh consecutive hold (11 months).[9] The spread between the base rate and jeonse loan rates is about 1.2–2.0 percentage points. The problem is that even if the base rate is cut further, jeonse loan rates are unlikely to fall below the mid-3% range due to banks' add-on rate structures. Tenants are structurally excluded from benefiting from base rate reductions.
3. Monthly Rent Conversion: What a Conversion Rate of 4.26% Means
3.1 What is the Jeonse-to-Monthly Rent Conversion Rate?
The jeonse-to-monthly rent conversion rate is the rate applied when converting a jeonse deposit into monthly rent. With a conversion rate of 4.26%, a deposit of 100 million won generates monthly rent of 355,000 won (4.26 million won annually).[10]
According to KB Kookmin Bank, the conversion rate for Seoul apartments in December 2025 was 4.26%, the highest in about seven years since January 2018 (4.26%). It has been steadily rising from the 3.8% level at the end of 2022.[10] KB data for Q1 2026 had not been published as of the time of writing this report, but given the sharp increase in the share of monthly rent (+8.2 percentage points, see Section 3.2 below) and the rise in Seoul jeonse prices, it is unlikely that the conversion rate has fallen below the end-of-2025 level.
3.2 What the Rising Conversion Rate Means for Tenants
Converting a median jeonse of 600 million won into monthly rent at a conversion rate of 4.26% yields 2.13 million won per month. In 2022, when the conversion rate was 3.8%, the same 600 million won would have meant 1.90 million won per month. Over three years, this represents an additional burden of 230,000 won per month for the same deposit.
A rising conversion rate strengthens landlords' preference for monthly rent, as the expected return from converting jeonse to monthly rent becomes higher. In fact, in Q1 2026, the share of monthly rent in all housing leases in Seoul reached 70.5% (Ministry of Land, Infrastructure and Transport Housing Statistics, March 2026). Even for Seoul apartments alone, the monthly rent share was 50.8%, a sharp increase of 8.2 percentage points from 42.6% in Q1 2025.[11] This figure has surged from the 40% range in 2021 to 68.3% (Seoul Capital Area total) in January–February 2026.
3.3 From Jeonse to Monthly Rent: The Cost of Forced Conversion
The decrease in jeonse listings (-41.4%) and the acceleration of conversion to monthly rent are two sides of the same coin. When tenants are forced to choose monthly rent because they cannot find a jeonse unit, the conversion rate of 4.26% is no longer a simple reference indicator, but a coerced formula for setting housing costs.
4. Housing Costs Relative to Income: Four Scenarios
In 2026, the median income for a four-person household is 6,494,738 won per month (Ministry of Health and Welfare announcement, +6.51% year-on-year).[12] The burden of meeting the housing cost for the median Seoul jeonse of 600 million won with this income is broken down into four scenarios.
Scenario A: Standard — Median Jeonse + Bank Loan (Mid-range Rate)
| Item | Value |
|---|---|
| Jeonse deposit | 600 million won |
| Loan amount (LTV 80%) | 480 million won |
| Loan interest rate | 4.0% (mid-range) |
| Annual interest | 19.20 million won |
| Monthly interest | 1.60 million won |
| Rent-to-Income Ratio (RIR) | 24.6% |
Even purely the interest burden, without any consideration of savings for purchasing a home, consumes roughly a quarter of income.
Scenario B: High Interest — Average Jeonse + Upper-Bound Rate
| Item | Value |
|---|---|
| Jeonse deposit | 681 million won (average) |
| Loan amount (LTV 80%) | 545 million won |
| Loan interest rate | 4.5% (upper bound) |
| Annual interest | 24.52 million won |
| Monthly interest | 2.04 million won |
| RIR | 31.4% |
An interest burden approaching one-third of income. This scenario is a reality for mid-credit borrowers subject to the upper-bound commercial bank rate.
Scenario C: Policy Loan — Those Eligible for Butimok Benefits
| Item | Value |
|---|---|
| Jeonse deposit | 600 million won |
| Loan amount (LTV 80%) | 480 million won |
| Loan interest rate | 2.5% (Butimok) |
| Annual interest | 12.00 million won |
| Monthly interest | 1.00 million won |
| RIR | 15.4% |
The interest rate benefit of the Butimok loan is substantial. However, the income requirement (annual 75 million won for a four-person household) is a hurdle. A household at the median income (about 77.94 million won annually) may be excluded from Butimok eligibility. Policy loans target the lowest-income groups, but the broadest segment of tenants—those around the median income—is left out.
Scenario D: Monthly Rent Conversion — Mediatization of Median Jeonse
| Item | Value |
|---|---|
| Jeonse deposit | 600 million won |
| Conversion rate | 4.26% |
| Monthly rent | 2.13 million won |
| RIR | 32.8% |
When converted to monthly rent, the housing cost burden exceeds one-third of income. Adding maintenance fees (200,000–300,000 won per month) and utility bills (electricity, gas, etc.) brings the effective housing cost to 36–38% of income. By international standards, spending more than 30% of income on housing is classified as "rent-burdened," and more than 50% as "severely rent-burdened."[13] Scenarios B and D have already entered or are close to the "rent-burdened" zone.
4.5 Generational Disparities
Young households (in their 20s and 30s) have lower incomes and fewer assets, leading to higher dependence on loans. According to Statistics Korea's Survey of Household Finances and Welfare (2025), the median net worth of a household head in their 20s is less than 100 million won. For them, raising the 20% self-funding (120 million won) for a 600 million won jeonse is nearly impossible. Ultimately, their dependence on jeonse loans exceeds 90%, making them more vulnerable to interest rate shocks.
5. The Trap of Renewal Right: Protection or Pitfall?
The Contract Renewal Request Right (renewal right) allows a tenant to demand an additional two-year extension after a two-year contract, with the rent increase capped at 5% during renewal.[14] On the surface, this is a tenant protection mechanism.
However, as of May 2026, the renewal right is functioning as a structural trap.
First, the explosion of the new-renewal gap. The maturity of jeonse contracts that exercised the renewal right in the first half of 2024 is concentrated in the first half of 2026. The deposit gap between renewal contracts (capped at a 5% increase) and new contracts (market price) has widened to as much as 370 million won.[5] Moving from a renewal to a new contract means the deposit jumps by several hundred million won.
Second, the paradox of mobility constraints. While tied to the renewal right, the gap with the market price widens, effectively blocking the tenant's ability to move at the end of the renewal period. "Protection" ends up removing options.
Third, May's move-in supply of 296 households. With only 296 households scheduled to move into new Seoul apartments in May 2026[5], tenants whose renewal periods expire find it physically nearly impossible to find a new jeonse. The market power of landlords is absolute.
6. The DSR Link: Jeonse Loans Block Home Purchases
The DSR (Debt Service Ratio) is the ratio of all loan principal and interest payments to annual income. The Yoon Suk Yeol administration (Note: context may refer to the government in power at the time? The text says "이재명 정부" — that's President Lee Jae-myung, an error? Actually the text says "이재명 정부" but the original post date is 2026-05-24, and the author is a leftist analyst. Possibly it refers to the Lee Jae-myung government if he is president in 2026 in this alternate timeline? But the instruction says "Do not invent Western politician names." However, 이재명 is a real Korean politician. I'll keep the name as is because it's a proper noun. But note the instruction says "Keep proper names and organization names sensible. Do not invent Western politician names." So we keep it as "President Lee Jae-myung's government".) President Lee Jae-myung's government, through a real estate measure on October 15, 2025, applied a DSR stress rate of 3.0% and set a mortgage loan limit of 600 million won.
Jeonse loans are also included in DSR calculation. A tenant holding a jeonse loan of 480 million won (80% of the median 600 million won jeonse) sees the interest burden (1.60 million won per month, Scenario A) consume a significant portion of the DSR limit. This effectively blocks additional loans for purchasing a home.
The effect is a double bind: tenants cannot accumulate assets because they are paying jeonse loan interest, and they cannot obtain mortgage loans because of DSR constraints. The ladder from jeonse to homeownership has been structurally dismantled.
7. Class Costs: Who Bears the Burden?
7.1 Tenants, Especially Young, Non-Homeowner Workers
The primary bearers of direct costs are tenants. Among them, those with no assets and low incomes—young people, non-regular workers, and single-person households—are the most vulnerable. For them, jeonse loan interest functions as a direct deduction from labor income.
7.2 Landlords: Rent Collectors
Landlords of Seoul apartments profit through two channels. One is the traditional rent collection by utilizing jeonse deposits at near-zero cost. The other is the monthly rent business, collecting rent at a conversion rate of 4.26%, yielding returns higher than market interest rates. The fact that the conversion rate is 1.76 percentage points higher than the base rate (2.50%) means landlords capture a higher margin than financial intermediaries.
7.3 Banks: Stable Capture of Interest Income
Because jeonse loans are guaranteed by HF, the credit risk for banks is effectively eliminated, making them a "risk-free, high-margin" product. A significant portion of the 1,993 trillion won in household debt is tied to jeonse loans[15], and banks are reluctant to lower loan rates even when interest rates are falling.
7.4 The State: Policy Failure and Contradiction
The state (government, Bank of Korea, financial authorities) is caught between incompatible goals. To prevent jeonse prices from rising, supply must be increased, but the 3–4 year time lag between starts and move-ins makes short-term responses impossible. Lowering interest rates to ease the interest burden would increase household debt, while raising rates to curb debt would explode the interest burden. Suppressing demand through DSR regulations blocks tenants' transition to homeownership. All policy pathways converge to the detriment of tenants.
8. Conclusion: Comprador-Monopoly Capitalism and Housing Costs
600 million won jeonse, loan rates at the 4% level, a conversion rate of 4.26%, and move-in supply of 296 households — these four numbers are not separate phenomena but a single structural outcome.
In the Korean real estate system, housing is a commodity in which exchange value (asset appreciation) takes precedence over use value (residence). The jeonse system is merely one form of lease relationship in which workers who do not own this commodity pay rent to its owners. The fact that the conversion rate of 4.26% is higher than the base rate of 2.50% shows that this rent is set above the average profit rate of financial capital, absorbing labor income.
The supply cliff is not an accident. It is the result of construction capital's profit-maximizing behavior—increasing supply during periods of rising sale prices and stopping starts during downturns—and the state's structural choice to avoid introducing public land rights and to rely on private pre-sale housing.
The housing cost crisis of 2026 is not a short-term "jeonse shortage" but a symptom of the accumulation structure of comprador-monopoly capitalism, in which labor income is absorbed through the triple pathway of rent, interest, and monthly rent. A real solution for tenants lies not in financial fine-tuning such as interest rate cuts or easing loan regulations, but in a structural transformation: decommodification of housing, substantive introduction of public land rights, and mass supply of public rental housing.
[1] Hankook Ilbo, “Seoul Apartment Jeonse Price Breaks 600 Million Won ‘Maginot Line’,” April 27, 2026. https://www.hankookilbo.com/news/article/A2026042709290005952
[2] Yonhap News, “Will New Apartments Rise Further?…2026 Seoul Apartment Move-in Volume Down 71% from This Year,” August 21, 2024. https://www.yna.co.kr/view/AKR20240821029300003
[3] Yonhap News, “Seoul Apartment Jeonse Up 0.22%… Upward Trend for Third Consecutive Week,” May 15, 2026. https://www.yna.co.kr/view/AKR20260504113500003
[4] Yonhap News, “December 2025 National Housing Price Trends… Seoul Apartment Annual Increase 8.98%,” January 15, 2026. https://www.yna.co.kr/view/AKR20260115095300003
[5] Data Economy Daily, “[Real Estate Read with Data] 2026 Seoul Move-in Plunges 48%, Analysis of May Jeonse Renewal Right Expiry Shock,” May 2026. https://www.dataeconomy.co.kr/news/articleView.html?idxno=35957
[6] Seoul Economic Daily, “Supply Cliff Becomes Reality, Jeonse Shortage and Price Rise… End-User Strategies Key,” 2026. (Seoul Capital Area move-in: 172k in 2024 → 137k in 2025 → 112k in 2026 households). https://www.sedaily.com/NewsView/2H1VOWB9EG
[7] Cyber-Lenin, “2026 Structural Diagnosis of the Korean Economy” (citing Q1 2026 permits -24%, completions -45%), May 23, 2026. https://cyber-lenin.com/reports/research/korea-economy-structural-diagnosis-2026-may
[8] Korea Housing Finance Corporation, Jeonse Loan Interest Rate Guide (week of May 4–10, 2026). http://www.hf.go.kr/ko/sub02/sub02_01_07_01.do
[9] Bank of Korea, Base Rate Trends. https://www.bok.or.kr/portal/singl/baseRate/list.do
[10] Chosun Ilbo, “Seoul Jeonse-to-Rent Conversion Rate Highest in 7 Years 7 Months… Moving Season Housing Cost Burden Likely to Increase,” September 5, 2025 (August 2025 4.25% → December 4.26% further rise). https://www.chosun.com/economy/real_estate/2025/09/05/33LGWRHWCJEJLPGTHHZMKHZ7UM
[11] Ministry of Land, Infrastructure and Transport, “March 2026 Housing Statistics,” April 30, 2026. (Seoul apartment monthly rent share 50.8%, up 8.2%p from 42.6% in same period last year. Seoul total housing monthly rent share 70.5%). Herald Economy report. https://v.daum.net/v/20260430060216954
[12] ZDNet Korea, “Next Year’s 4-Person Household Median Income Set at 6.494 Million Won, Up 6.51%,” July 31, 2025. https://zdnet.co.kr/view?no=20250731161831
[13] U.S. Department of Housing and Urban Development (HUD), “Rental Burdens: Rethinking Affordability Measures.” Over 30% classified as rent-burdened, over 50% as severely rent-burdened.
[14] Housing Lease Protection Act Article 6-3 (Contract Renewal Request Right). Limits rent increase to 5% upon renewal.
[15] Bank of Korea, “Q1 2026 Household Credit (Preliminary),” May 19, 2026. Household credit balance 1,993.1 trillion won. https://www.bok.or.kr/portal/bbs/P0000559/view.do?nttId=10089222