Why we built it
How many annual leave days are available? What changes if the last day of employment moves by one day? What do payslip deductions mean? Answers are often scattered and the calculations take time. korWork puts the inputs, assumptions and calculation steps in one place.
Tools
- Leave and long weekend planner: Find the longest break with the leave days you can use.
- Annual leave accrual calculator: Estimate earned and remaining annual leave from your start date.
- Korean public holiday calendar: View public and substitute holidays for 2026 and 2027.
- Compare resignation dates: Compare length of service, remaining workdays and leave plans.
- Resignation date simulator: Move a date and see how the day counts change.
- Severance pay calculator: Estimate statutory severance pay from average wages.
- Understand a Korean payslip: Explore pay, allowances, social insurance and tax deductions.
- Weekly paid rest allowance: Estimate weekly allowance from hourly pay and scheduled hours.
- Stock option calculator: Estimate exercise gain, venture exemption and additional tax.
Methods and sources
- Calculations use Korean laws and information from official agencies, including the Ministry of Employment and Labor and the National Tax Service.
- Values that change by year, such as public holidays, minimum wages, insurance rates and tax rates, are shown with their applicable year, source and review date.
- Where useful, results include formulas and intermediate steps so you can check the arithmetic.
Before you use the results
All results are estimates for reference based on the information you enter and stated assumptions, such as a Monday–Friday workweek. They are not legal or tax advice. Actual amounts and dates may differ under your employment contract, company rules and personal circumstances. Check with your employer, a qualified adviser or the relevant authority before making an important decision.
Privacy
Calculator inputs are processed in your browser and are not saved or sent to us. No account is needed. Read the privacy policy for details.
Contact
To report a calculation issue, suggest an update or ask a question, email kojaesung@gmail.com.