Rule 1
Combines employment, business, financial, and other income into one taxable base.
Comprehensive Income Tax Calculator
Korea综합所得税 Simple Calculator
Total Tax
542
₩10K
Effective Rate
9.9%
Marginal Rate
15%
Tax by Bracket
Gross Income5,500 ₩10K
Employment Deduction−1,225 ₩10K
Basic Personal Deduction−150 ₩10K
Taxable Income4,125 ₩10K
Income Tax493 ₩10K
Local Tax (10%)49 ₩10K
Simplified calculation with employment deduction, basic deduction (₩1.5M), and 30% business expense deduction. Actual tax may differ due to additional credits.
Comprehensive income tax is country-specific
This page estimates comprehensive 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
Uses progressive rates from 6% to 45%.
Rule 3
Reflects employment deduction, KRW 1.5M basic deduction, and 10% local income tax.
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?
Dependents, special deductions, credits, and actual expenses can materially change the result.
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.