Housing Type 20-Year Cost Calculator

Housing Type 20-Year Cost Calculator helps compare Korea-related property income, yield, purchase cost, and holding-period scenarios in English.

Housing type 20-year cost calculator

Uses the Korean 20-year housing model comparing purchase, jeonse, monthly rent, and semi-jeonse with taxes, rent credit, insurance, opportunity cost, and asset value.

Korean source inputs

Best option

Purchase

Lowest net cost across 20 years.

Best net cost

-₩23,050,000

Net cost after asset value and opportunity cost.

Purchase net cost

-₩23,050,000

Final asset ₩1,474,750,000.

Jeonse net cost

₩1,007,690,000

Loan interest, insurance, brokerage, moving, opportunity cost.

Monthly rent net cost

₩678,550,000

Rent, management fee, tax credit, brokerage, opportunity cost.

Breakeven points

0

Years where options cross in the source model.

This English calculator calls the same pure Korean calculation function used by the Korean page. Inputs and labels are translated; the formula is not replaced by a generic stub.

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Housing type 20-year cost calculator

This guide follows the Korean 20-year housing-cost calculator for purchase, jeonse, monthly rent, and semi-jeonse, including loan interest, taxes, insurance, opportunity cost, and resale effects.

Four housing choices

The Korean source compares purchase, jeonse, monthly rent, and semi-jeonse over the same 20-year horizon. Jeonse guarantee insurance is modeled at 0.128 percent, and the monthly rent tax credit is 15 to 17 percent with a KRW 10 million annual cap.

Mortgage rates are commonly modeled at 3.5 to 5.5 percent, and jeonse loan rates at 3.0 to 4.5 percent. A 1 percentage point change on KRW 300 million of borrowing means roughly KRW 3 million of annual interest difference.

Tax and opportunity cost

Ordinary acquisition tax is 1 percent at or below KRW 600 million, about 1.5 percent between KRW 600 million and KRW 900 million, and 3 percent above KRW 900 million, while regulated two-house and three-house cases can reach 8 percent and 12 percent. Property tax is modeled around 0.1 to 0.4 percent, and comprehensive real-estate tax applies to one-house official price above KRW 1.2 billion with 0.5 to 2.7 percent rates.

One-house capital-gains exemption can apply up to KRW 1.2 billion sale price, with excess gain taxed at 6 to 45 percent. The opportunity-cost branch uses a 4 percent return assumption, so KRW 300 million tied in housing equity represents about KRW 12 million per year.

Market-growth sensitivity

The Korean content distinguishes recent Seoul apartment growth of roughly 3 to 5 percent over a 10-year view from local-area growth around 1 to 2 percent, with inflation around 2.5 percent. A purchase decision can flip when appreciation assumptions change.

The English calculator reuses calculateHousingType20YearCost so debt, tax, deposit, rent, and resale assumptions stay aligned with the Korean page. Treat the output as a scenario comparison, then update it with actual quotes and local market assumptions.