Income Tax Calculator
Calculate income tax based on Korean tax brackets.
세금 내역
소득세 과세표준 구간
Overview
Comprehensive Income Tax in South Korea applies progressive tax rates to an individual's total annual income including interest, dividends, business, employment, pension, and other income. Rates range from 6% to 45% across eight brackets. The Income Tax Calculator helps you estimate your tax liability and effective tax rate.
Formula
Tax Base = Total Income - Deductions. Tax Amount = Tax Base x Rate - Progressive Deduction. 2024 Rates: Up to KRW 14M at 6%; 14M-50M at 15% (deduction KRW 1.26M); 50M-88M at 24% (5.76M); 88M-150M at 35% (15.44M); 150M-300M at 38% (19.94M); 300M-500M at 40% (25.94M); 500M-1B at 42% (35.94M); Over 1B at 45% (65.94M).
How to Use
- 1Enter your total annual income.
- 2Input applicable deductions (personal exemptions, insurance, medical expenses, etc.).
- 3Click Calculate to see your tax base, calculated tax, and effective tax rate.
Tips
- ✔Maximize both income deductions and tax credits to significantly lower your tax bill.
- ✔Taxpayers designated as 'faithful reporting' must have their returns verified by a tax accountant.
- ✔The annual income tax filing deadline is May 31.
- ✔Employees with only wage income can settle taxes through year-end tax adjustment instead.
- ✔Local income tax (10% of income tax) must be paid separately to the local government.
FAQ
Q. What is the difference between wage income tax and comprehensive income tax?
Wage income tax is withheld from salary. Comprehensive income tax aggregates all income types (interest, dividends, business, wages, pension, other). Wage earners with only employment income settle through year-end adjustment, while those with additional income must file by May.
Q. What is the progressive deduction?
It is a simplified calculation amount that yields the same result as applying each bracket's rate individually. Multiply the tax base by the applicable rate and subtract the progressive deduction.
Q. What happens if I fail to file income tax?
Penalties include a non-filing surcharge (20% of tax due, or 40% for fraudulent non-filing) and a late payment surcharge (unpaid tax x days overdue x 0.022%).
Q. Is local income tax separate?
Yes, local income tax equal to 10% of your national income tax must be filed and paid separately to the local government.
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