Salary Calculator

Korea's four major insurances — national pension, health insurance, long-term care insurance, and employment insurance — are compulsory by law for both employees and employers. National pension provides retirement income security; health and long-term care insurance fund medical costs; and employment insurance covers unemployment benefits and vocational training. Premiums are split between the employee and employer at fixed ratios, and some insurances have a contribution ceiling based on the standard monthly income cap. Your monthly take-home pay is the amount remaining after deducting the employee share of these four insurances plus income tax and local income tax from your gross monthly salary — the result is shown instantly on this page's result card.

The four major insurances are national pension, health insurance, long-term care insurance, and employment insurance. Rates are set annually by law, and national pension contributions do not increase beyond the standard monthly income ceiling. For the latest rates, check the National Pension Service and National Health Insurance Service official websites.

The simplified withholding tax table is designed so that the income tax withheld varies with the number of dependents. More dependents means less income tax withheld each month, which slightly increases take-home pay. Note that social insurance contributions are calculated solely on salary and are unaffected by the number of dependents.

Non-taxable allowances are pay items excluded from income tax calculation — common examples include meal subsidies and vehicle allowances. The monthly limit for each type of non-taxable allowance is set by law and may change periodically. If your employer provides such allowances, enter the actual monthly amount you receive. Higher non-taxable amounts reduce your taxable income, which lowers your income tax.

This calculator uses the simplified withholding table at 100%. Your actual pay may differ because companies handle non-taxable items (meal, commuting) differently, the withholding table ratio can be adjusted according to company policy, and the actual withholding is determined by the company's payroll system. Year-end tax settlement also adjusts the final tax amount. Use this result as a reliable estimate, then check your pay stub for exact figures.

The simplified withholding tax table is published annually by the National Tax Service (NTS) and is available for download at hometax.go.kr. The table cross-references monthly salary and the number of dependents to determine the standard income tax withholding amount. Your payroll department uses this table to calculate monthly income tax deductions.

Income tax is designed with a progressive rate structure, so the applicable rate rises step by step as the taxable income bracket increases. Four major insurance deductions also grow in proportion to monthly pay. The deduction ratio gauge on the result card rises as you move the salary slider — that is the progressive structure at work. Try the slider to see directly how the same raise amount produces a smaller take-home increase at higher salary levels.

Non-taxable allowances are excluded from the taxable base used to calculate income tax and four major insurances, so more non-taxable pay means more take-home. Adjusting the non-taxable allowance slider lets you watch the income tax and insurance deductions on the result card decrease in real time. Compare for yourself how take-home changes based on whether non-taxable allowances are included — even when total gross pay is the same.