Rule 1
Assumes KRW 50M domestic and KRW 2.5M other basic deductions.
Korean Financial Investment Tax
Korea Financial Investment Income Tax (금투세) Calculator
Tax Payable
750
₩10K units
Effective Rate
7.5%
Taxable Income
3,750
Total Gains10,000 ₩10K units
Total Losses−1,000 ₩10K units
Basic Deduction (Domestic (Stocks/ETF/Funds))−5,000 ₩10K units
Basic Deduction (Bonds/Derivatives)−250 ₩10K units
Taxable Income3,750 ₩10K units
Bracket Breakdown
Up to ₩300M (20%)3,750 × 20%
750 ₩10K units💡 Tax Saving Tips
Realize losses in the same year to offset gains. Maximize basic deductions (₩50M domestic, ₩2.5M other). Long-term holding maximizes tax efficiency.
This calculator is for reference based on Korea's financial investment income tax. Consult a tax professional for actual liability.
Financial investment income tax is country-specific
This page estimates financial investment income tax under Korea rules. Because brackets, deductions, and social contributions are country-specific and can change yearly, use the result as a planning estimate before filing.
Core calculation rules
Rule 2
Current-year losses offset gains first.
Rule 3
Uses 20% up to KRW 300M taxable income and 25% above.
How to use
- Enter the required amounts and conditions.
- Review the tax, deduction, and contribution lines separately.
- Compare with current official rules before filing, paying, or making a decision.
Frequently asked questions
Which country does this calculator use?
It uses Korea rules. Do not apply it directly to another country’s tax, deduction, or social insurance system.
Why can the final amount differ?
Implementation details and timing can change, so actual liability may differ.
Do the rules change every year?
Yes. Tax rates, deduction limits, and social contribution rates can change each year. Confirm the current-year rules before filing or paying.
This is a general estimate. Confirm the final amount with the tax authority or a tax professional.