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 2026–2028. The 2028 dates are provisional.
- 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.
Operating and editorial responsibility
The korWork operator maintains the content and calculators and uses the email below as the contact channel. This is not an official government or insurer service. Agency names identify source publishers; they do not certify this site’s credentials or external professional review.
Writing and review
The korWork operator maintains the guides and calculators. We check applicable conditions and effective dates in laws and official agency materials, independently verify example dates, arithmetic and rounding, and state conditions the tools cannot handle. Korean and English guidance is checked for consistent assumptions, examples and sources.
- Distinguish laws, agency guidance and individual consultation responses, and link the supporting originals.
- State fictional inputs, calculation steps and exclusions.
- Check calendar dates and arithmetic; explain differences from the tool’s results through assumptions or processing rules.
- Check calculations, pages, links and mobile layout before incorporating changes.
We check annual values when their applicable year or period changes, and revisit affected sources, examples and calculations when a rule changes or an issue is reported. A guide’s review date records when its materials were checked; it does not mean later changes are automatically included. This process does not replace individual review by a qualified legal or tax professional.
Content update dates and source-check dates are separate. Editing an example does not mean every law and rate was reverified that day. When a source cannot be accessed or an effective date is unclear, we state the applicable period and what still needs checking. We do not guarantee scheduled full reviews or a fixed response time.
Reporting an issue
Email the page URL, reference year, fictional inputs without personal information, expected and actual results, and relevant official material. You do not need to send original payslips, identification numbers or bank details. Reports are checked for reproducibility and the official basis; when a correction is needed, the related explanation, examples and calculations are reviewed together.
For differences from payroll, first compare the conditions in the severance reconciliation guide or the monthly payslip comparison guide.
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.