Rule 1
Ordinary withholding on interest/dividends is 15.4% including local tax.
Separate vs. Comprehensive Tax Calculator
Korea Financial Income Tax Comparison
₩20M threshold: Financial income exceeds ₩20M — comprehensive taxation is mandatory.
Tax Comparison
Separate Tax Amount
462
Flat Rate 15.4% · ₩10K
Comprehensive Tax (incremental)
656
Marginal Rate on Financial Income: 24% · ₩10K
Employment Income (₩10K)5,000 ₩10K
Employment Deduction−1,225 ₩10K
Basic Deduction−150 ₩10K
+ Financial Income (interest+dividends, ₩10K)3,000 ₩10K
Taxable Income6,625 ₩10K
Verdict
✓ Separate taxation is more advantageous
Difference: 194 ₩10K
Includes employment income deduction and basic personal deduction (₩1.5M). Additional deductions/credits are not reflected.
Separate and comprehensive taxation is country-specific
This page estimates separate and comprehensive taxation 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
At or below KRW 20M, separate taxation applies automatically.
Rule 3
Above the threshold, marginal comprehensive rates apply.
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?
Actual filing reconciles withholding, deductions, losses, and local tax.
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.