
LTV vs DTI vs DSR in Korea: Which One Actually Sets Your Limit
Of Korea's three mortgage ratios, DSR usually decides the number. Running one case through a 40% LTV, the KRW 600m price-band cap and a 40% DSR shows which gate closes first.

Of Korea's three mortgage ratios, DSR usually decides the number. Running one case through a 40% LTV, the KRW 600m price-band cap and a 40% DSR shows which gate closes first.

Under stage-3 stress DSR, banks size a Seoul-area mortgage using the actual rate plus 1.50 percentage points. At a 60 million won income, 30-year term and 4% rate, the limit falls from 419 million to 352 million won.

With Seoul transactions significantly reduced and wait-and-see sentiment deepening after the capital gains surcharge, this post examines the stress DSR — the core axis of lending regulation. Understanding how the numbers work is what allows end-buyers to estimate their own borrowing capacity.