Income Tax Calculator
Enter your taxable base to approximate the computed tax across the 6-45% progressive brackets
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Just enter your total taxable income base and the calculator automatically finds the right 6-45% progressive bracket to compute your tax. It also shows your marginal rate, effective rate, and local income tax so you can grasp your overall tax burden at a glance.
How to use
- Enter your total taxable income base (KRW).
- Use the checkbox to choose whether to include the 10% local income tax.
- The computed tax is calculated automatically at the applicable bracket rate.
- Review the computed tax, marginal rate, effective rate, and total tax burden, then copy the result.
FAQ
- How do I find my taxable base?
- The taxable base is your total income minus your various income deductions. This calculator takes the taxable base as input and computes only the resulting tax.
- What's the difference between the marginal and effective rate?
- The marginal rate is the rate of the bracket your taxable base falls into, while the effective rate is your computed tax divided by your taxable base, the actual average burden. Because of the progressive deduction, the effective rate is lower than the marginal rate.
- Will this match my actual tax bill?
- This is a reference approximation. It is based on the computed tax before tax credits (for employment, children, pension, and so on), reductions, and penalties, so it may differ from the actual amount. Confirm your final tax with the tax office.