2026 Korean Income Tax Calculator — Bracket, Effective Rate & Tax Tips
Calculate 2026 Korean income tax (6%–45%) automatically. Applies employment deduction, personal deduction, and tax credits. Shows effective rate, bracket visualization, and rule-based tax-saving diagnosis — all free.
This calculator is for reference only and may differ from actual amounts due to law changes or individual circumstances. Please consult a licensed professional (tax accountant, labor attorney, etc.) for accurate calculations.
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Frequently Asked Questions
Q. What are the 2026 Korean income tax brackets?
2026 rates: ≤₩14M→6%, ≤₩50M→15%, ≤₩88M→24%, ≤₩150M→35%, ≤₩300M→38%, ≤₩500M→40%, ≤₩1B→42%, >₩1B→45%.
Q. What is the employment income deduction?
A deduction for employees: 70% for income under ₩5M, tapering to 2% for income above ₩100M. Applied automatically when you select "Employee."
Q. What is the difference between income deduction and tax credit?
Income deductions reduce taxable income before computing tax. Tax credits reduce the computed tax directly — generally more valuable.
Q. What is the difference between income tax and withholding tax?
Withholding tax is deducted at source from wages. Comprehensive income tax is a May self-assessment filing combining all income types (business, interest, dividends, wages, pensions, other).
Q. How much tax can I save with IRP/pension accounts?
Up to ₩9M combined IRP/pension contributions qualify for a 16.5% tax credit (income ≤₩55M) or 13.2% (income >₩55M), saving up to ₩1,485,000 in tax.
Q. Is local income tax separate?
Yes — local income tax is 10% of the national income tax, billed separately. This calculator shows the total including local tax.
Q. Can I use this for actual tax filing?
For reference only. File via NTS Hometax (hometax.go.kr) or consult a certified tax accountant for accurate filing.
How to Use
Enter your annual pre-tax income. If you're an employee, select "Yes" to auto-apply the employment income deduction.
Input additional deductions (medical, education, donations) and tax credits.
Taxable income, computed tax, final tax, local tax, and effective rate are calculated instantly.
Check the tax-saving diagnosis for IRP/pension tips, overlooked deductions, and bracket optimization advice.
Expert Knowledge: 2026 Korean Income Tax Calculator — Bracket, Effective Rate & Tax Tips
Korea's income tax system is progressive, with the 2026 top marginal rate reaching 45% for income over ₩1 billion. Adding the 10% local income tax, the combined top rate is effectively 49.5%.
The most powerful tax-saving tools for salaried workers are IRP (Individual Retirement Pension) and pension savings accounts, which together provide a tax credit on up to ₩9M in contributions. For those earning under ₩55M, the 16.5% credit rate saves up to ₩1,485,000 annually — an immediate 16.5% return on investment.
Self-employed individuals and freelancers should maximize deductible business expenses: rent, payroll, marketing, depreciation, and professional fees all reduce taxable income directly. A quarterly consultation with a certified tax accountant (세무사) often pays for itself through legally optimized deductions.
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