Auction Profit Analysis Calculator

Auction Profit Analysis Calculator helps compare Korea-related property income, yield, purchase cost, and holding-period scenarios in English.

Auction profit analysis calculator

Uses the Korean auction-profit model for bid rate, acquisition tax, senior deposits, eviction, repair, loan cost, holding cost, sale tax, rental yield, and exit strategy.

Korean source inputs

Equity required

₩273,950,000

Total investment ₩633,950,000.

Acquisition cost

₩633,950,000

Tax rate 1%.

Holding cost

₩19,656,000

Loan interest ₩16,200,000.

Sale net profit

₩18,526,000

Annualized ROI 6.8%.

Rental net yield

N/A

Sale strategy selected.

Warnings

1

Source warnings generated from auction facts.

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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Auction profit analysis calculator

This guide translates the Korean auction profit calculator for bid price, acquisition tax, senior claims, eviction cost, holding cost, sale tax, and rental exit analysis.

Bid and acquisition cost

The Korean source starts from appraisal price, bid rate, and bid price, then adds acquisition tax, local education tax, special rural tax, registration cost, stamp duty, lawyer fee, eviction cost, senior deposit, repair cost, agency fee, and other acquisition cost.

For housing acquisition tax in 2026, one-house purchases use 1 percent at or below KRW 600 million, a variable 1 to 3 percent band between KRW 600 million and KRW 900 million, and 3 percent above KRW 900 million. Multi-house and regulated-area cases can jump to 8 or 12 percent.

Loan and holding cost

Loan amount, LTV, interest rate, period, and repayment method drive the holding-cost result. The source returns total loan interest, monthly loan interest, property tax, maintenance cost, and total holding cost separately.

Property tax uses an official-price ratio of 0.69 in the Korean constants. The bid-rate labels are not decoration: under 50, 50 to 65, 65 to 75, 75 to 85, and 85 or higher mean very different risk profiles.

Exit and tax

Sale analysis applies brokerage, capital gain, long-term deduction, capital gains tax, local income tax, net profit, total ROI, equity ROI, and annualized ROI. Short-term housing transfer rates are 70 percent under 1 year and 60 percent under 2 years.

Rental analysis is available for monthly rent or jeonse exit strategies. Vacancy rate, rent deposit, monthly rent, repair cost, holding period, and loan interest can turn a profitable sale scenario into a weak cash-flow scenario, so both outputs should be read together.