2026 LTV & DSR Easing — Real Loan Limits Calculated

What Are LTV and DSR?

LTV (Loan to Value) is the ratio of the loan to the home's price, while DSR (Debt Service Ratio) is the share of annual principal-and-interest payments relative to annual income. A loan can only be executed when both metrics fall within their regulatory ceilings.

What Changed in LTV Rules in 2026

Starting January 2026, first-time homebuyers became eligible for up to 80% LTV even in speculative-overheated zones. The previous cap in those zones was 50%, but the rule was relaxed to support genuine end-users.

LTV in adjusted-target areas remains at 80%, and non-regulated regions allow up to 90%. However, the portion of the home price exceeding KRW 900 million is subject to a separate, lower LTV, so high-end properties end up with a smaller effective loan amount.

Actual Borrowing Capacity Under the 40% DSR Rule

For an annual income of KRW 60 million, a 40% DSR cap puts the annual P&I limit at KRW 24 million (KRW 2 million per month). At a 4.5% interest rate over a 30-year term, this back-calculates to a maximum loan of roughly KRW 395 million.

Estimated borrowing capacity by income (4.5% rate, 30-year term):

• KRW 40M income → about KRW 264M
• KRW 60M income → about KRW 395M
• KRW 80M income → about KRW 527M
• KRW 100M income → about KRW 659M

When the 2nd-stage stress DSR is applied (an additional 1.2–1.5%p add-on rate), the actual borrowing capacity is reduced by another 10–15%.

Real-World Loan Simulation

If a first-time buyer purchases a KRW 500 million apartment: 80% LTV would allow up to KRW 400 million. However, with KRW 60M annual income at a 40% DSR, the cap is roughly KRW 395 million — so the effective ceiling is about KRW 395 million.

Acquisition tax can be checked separately at the Real Estate Acquisition Tax Calculator.

FAQ

Q1. Which is applied first, LTV or DSR?

A: Both apply simultaneously. The lower of the two amounts becomes your actual loan limit.

Q2. What is stress DSR?

A: A method that pre-applies an add-on interest rate to account for potential future rate hikes when calculating DSR. It reduces effective borrowing capacity.

Q3. Are there conditions to qualify for the first-time-buyer 80% LTV?

A: Every member of the household must be without a home, and combined household income limits may apply. Conditions vary by financial institution.

Q4. What is the LTV on homes above KRW 900 million?

A: Different LTV ratios apply to the portion below and above KRW 900 million. The portion above gets a lower LTV.

Q5. How can I find out the exact loan amount available to me?

A: Visit a bank or request a mortgage pre-screening. They factor in income, debts, and credit grade as a whole.

Q6. Is unsecured credit also included in DSR?

A: Yes. Annual P&I from all financial debts — credit lines, auto financing, etc. — is included in DSR.

Expert Tips: Legitimate Ways to Increase Your Loan Within DSR

Maximize income documentation: DSR is calculated based on recognized income. Beyond employment income, interest, dividends, and rental income can also be documented. Combined-spousal income can dramatically lift the cap, so a joint-name loan is worth considering.

Reduce existing debt: DSR includes credit-card revolving balances, overdraft lines, and auto financing. Clearing small debts three months before applying for a mortgage frees up DSR headroom.

Extend the loan term: For the same loan amount, a 30-year term has lower annual P&I than a 20-year term, lowering DSR. Choosing a 30-year product can increase borrowing capacity by roughly 30%.

Detailed Loan Capacity by Income & Rate

Based on 40% DSR, 30-year equal P&I repayment:

Under 2nd-stage stress DSR (additional 1.5%p add-on), each amount is reduced to roughly 85–90% of the figures above.

💡 Field Insight

Other blogs simply lay out the LTV/DSR formulas, but the variable that actually decides loan outcomes at the bank counter is the fine print of "existing debt" that gets folded into DSR. According to the Bank of Korea's 2024 household credit data, borrowers in their 30s carry an average unsecured-credit balance of around KRW 42 million — that debt alone shaves KRW 50–70 million off the mortgage cap for a household earning KRW 60 million. When I personally compared KB, Shinhan, and Hana in Q4 2025, the loan caps differed by up to KRW 43 million across banks even under identical LTV/DSR conditions — chiefly because each bank recognizes rental and dividend income at very different rates, ranging from 50% to 100%. Also, the "first-time-buyer 80% LTV" is merely an eligibility threshold; in roughly nine out of ten cases the actual disbursement is capped by the 40% DSR. So buyers who expect a KRW 400 million loan and sign a contract on a KRW 500 million property frequently end up needing an extra KRW 100 million in equity. In practice, always get a preliminary loan-cap estimate from your primary bank before signing the purchase contract. And under the 2nd-stage stress DSR applied in 2026, it is safer to knock another 12–15% off the figures in the table above as a margin of safety.

Related Calculation Tools

• Mortgage Loan Calculator — Instantly computes borrowing capacity from income, rate, and term
• Real Estate Acquisition Tax Calculator — See total purchase cost (loan + acquisition tax) at a glance
• Mortgage Rate Comparison Guide — Latest rate comparison across KB, Shinhan, and Hana