Tax calculator

Korean Capital Gains Tax Calculator

Estimate Korean capital gains tax from sale price, cost basis, expenses, deduction, and confirmed rates.

Confirm the deduction and rates for the asset, holding period, and transaction before entering them.

Estimated sale result

A planning estimate using the deduction and single tax rate entered.

Calculation details

Calculate to see the gain and estimated tax from your inputs.

Capital gain equals sale price minus acquisition price and deductible expenses.
Taxable gain subtracts the entered deduction from the gain and is floored at zero.
Local income tax applies the entered percentage to national tax; after-tax profit subtracts cost basis from net proceeds.

This calculator does not determine progressive brackets, long-term holding deductions, exemptions, surtaxes, or relief.
Rules vary by asset type, holding period, residency conditions, property count, and transaction date.
Confirm the tax base, deductions, and applicable rates with Korea's National Tax Service guidance or a tax professional before filing.

Why do I enter the tax rate?

Tax bases, progressive brackets, surtaxes, and relief differ by transaction, so the calculator uses a rate you have confirmed.

How is the local tax percentage applied?

It is multiplied by the calculated national capital gains tax, not directly by taxable gain.

Can I calculate a loss?

Yes. When the gain is zero or negative, taxable gain and tax are zero in this simplified estimate.

Can I file using this result?

No. It is a planning estimate based on one entered rate and does not replace an official filing calculation.

Important cautions

This calculator does not determine progressive brackets, long-term holding deductions, exemptions, surtaxes, or relief.

Rules vary by asset type, holding period, residency conditions, property count, and transaction date.

Confirm the tax base, deductions, and applicable rates with Korea's National Tax Service guidance or a tax professional before filing.

FAQ