[Korea] LTV Regulated First Home 70%

Inputs and formula

The ratio on this page is 70%. Even in regulated areas, first-time home-purchase mortgages are guided at a looser ratio than ordinary 40%. FSC reports mention easing to the 60–70% range for first-time and policy mortgages. Here it is fixed at 70% to match the user segment table and 2026 practice guidance.

Formula: LTV limit = (market value × 0.7) − senior loan; the final amount is the minimum of that limit and the 600 million KRW cap when the cap is on. At 800 million KRW market value, 70% is 560 million KRW. That is below 600 million, so the cap does not bind. At 1 billion KRW, 70% is 700 million KRW → cut to the 600 million cap. The same 1 billion KRW as ordinary 40% is 400 million KRW. Changing one line of eligibility moves the limit by hundreds of millions of KRW.

The 40% in the comparison field is “when this home is under ordinary regulated-area rules.” If you are not a first-time buyer and still enter 70%, underwriting can come down toward that comparison value.

What this calculator shows and what it does not

This screen does not decide whether you are a first-time buyer. Banks look at past home ownership, sale rights, and inherited shares. Didimdol and Bogeumjari have separate income and home-price caps, and the June 2025 plan said the 70% first-time LTV in metro and regulated areas and the move-in duty also apply to policy loans. Policy-product limit cuts are a separate matter.

Move-in within 6 months, a 30-year maturity, and DSR sit outside the ratio. Even if 70% appears, if the monthly payment exceeds income that 70% is only on paper.

If your situation differs, this is not the page

If it is not a regulated area, see regional / Incheon etc. unregulated 70%; if you are not a first-time buyer, Seoul/Gyeonggi regulated ordinary 40%; if you want the metro story of the old 80% shrinking to 70%, see Seoul, Incheon, Gyeonggi first-time LTV 70%. The two 70% pages share the ratio but weight the explanation differently.