Income Tax Calculator
Calculate comprehensive income tax based on Korean tax brackets
Input
Reviewed 2026-07-11 · 2023+ basic rates · before deductions and credits
Result
- Income Tax
- ₩1,740,000
- Local Income Tax (10%)
- ₩174,000
- Total Tax
- ₩1,914,000
- Effective Tax Rate
- 9.57%
| Bracket | Rate | Taxable Amount | Tax |
|---|---|---|---|
| 0–14,000,000 | 6% | ₩14,000,000 | ₩840,000 |
| 14,000,000–50,000,000 | 15% | ₩6,000,000 | ₩900,000 |
What is Income Tax Calculator?
This calculator applies the eight comprehensive-income basic brackets used from 2023 onward and reviewed on 2026-07-11. It splits taxable income across the 6% through 45% brackets, then estimates local income tax at 10% of income tax. The result is a basic calculated-tax estimate before individual deductions and credits.
How to Use
- Enter annual taxable income as a positive whole-won amount.
- The calculator applies the eight basic brackets used from 2023 onward.
- Review income tax and local income tax, which is 10% of income tax.
- Use the bracket breakdown as an estimate before deductions and credits.
Tips & Best Practices
- Enter annual taxable income as a positive whole-won amount, not gross receipts.
- Only income within each bracket uses that bracket's rate.
- Local income tax is calculated from income tax using the shared 10% policy.
- Treat the result as an estimate before individual deductions and tax credits.
- Use the official source links and review date when comparing this estimate with a filing.
Use Cases
Annual Tax Estimation
Enter your expected taxable income for the year to estimate your total tax liability and plan quarterly estimated tax payments.
Raise Impact Analysis
Compare the tax on your current income versus your income after a raise to see the actual after-tax value of the salary increase.
Freelance Income Planning
Calculate the tax on freelance or side income added to your employment income to understand the marginal tax impact.
Deduction Optimization
Test different taxable income levels to determine how much additional deductions you need to drop into a lower tax bracket.
FAQ
Which tax rates does this estimate use?
It uses the eight basic brackets from 6% through 45%, applicable from 2023 onward and reviewed on 2026-07-11.
Does this include deductions and tax credits?
No. It is a basic calculated-tax estimate before individual deductions and credits.
How is local income tax estimated?
Local income tax is floored at 10% of calculated income tax under the shared policy.
Why is income split across brackets?
Only the portion within each bracket uses that rate; the highest rate is not applied to all income.