💵 Annual Salary Calculator
Calculate monthly salary, take-home pay, insurance premiums from annual salary.
What This Calculator Works Out
Enter your annual pre-tax salary to see the monthly gross, the four social insurance contributions withheld from a Korean payslip, and your estimated take-home pay. Korea withholds national pension, health insurance, long-term care insurance and employment insurance from the employee, while the employer pays a comparable amount on top of the salary — so the true cost of employment is higher than the salary itself.
Social Insurance Rates (2025)
| Item | Rate |
|---|---|
| National Pension | 4.5% |
| Health Insurance | 3.545% |
| Long-term Care Insurance | 12.95% of health premium |
| Employment Insurance | 0.9% |
The above rates are employee contributions and may vary based on salary and dependents.
Employee contributions are fixed percentages of monthly taxable pay: national pension 4.5%, health insurance 3.545%, long-term care insurance calculated on the health insurance premium, and employment insurance 0.9%. Industrial accident insurance is paid entirely by the employer.
Worked Example
A Korean salary of 40,000,000 KRW (about 29,000 USD) is roughly 3,333,333 KRW a month before deductions.
The four contributions take about 9-10% of monthly pay, leaving around 3.0 million KRW (about 2,160 USD).
What the Estimate Leaves Out
This is a simplified estimate based on the 2025 statutory rates. It does not apply the earned income tax credit, the year-end settlement, non-taxable allowances, dependent deductions or the local income tax, so your actual payslip will differ. Bonuses and overtime are treated as ordinary monthly pay. Use it to compare offers, not to file a tax return.
Frequently Asked Questions
- What is the difference between gross and take-home pay?
- Gross pay is the salary before anything is withheld; take-home pay is what reaches your bank account after social insurance and income tax. In Korea the four social insurances take roughly 9% of monthly pay before income tax.
- Who pays the employer share of the social insurances?
- Your employer pays a separate, similar amount (about 10–11%) on top of your salary. That is why the total cost of employing someone exceeds the salary itself.
- Does the number of dependents change my deductions?
- Yes. Dependents reduce income tax through the personal allowance rather than changing the insurance rates, and health insurance can cover registered family members. Enter them to see the effect on the estimate.