Who is this for?
Anyone dealing with Korean money rules in English: foreign employees and English teachers checking a job offer, students working part-time, and anyone signing a lease for the first time. Korean payslips, severance rules and the jeonse rental system are well documented — in Korean. These calculators do the same arithmetic the official rules describe and explain each step in plain English.
Every calculation runs inside your browser. The salary, deposit or dates you enter are not sent to any server and are not stored anywhere; refresh the page and they are gone.
Where do the numbers come from?
The figures follow Korea's 2026 rates as of October 2026: insurance rates published by the National Pension Service, the National Health Insurance Service and the Korea Workers' Compensation & Welfare Service; income tax rules from the Income Tax Act; the minimum wage set by the Minimum Wage Commission; and rental rules from the Housing Lease Protection Act. The English pages use exactly the same calculation code as the Korean edition, so both always show the same numbers.
Things foreign residents often miss
- Salaries are quoted per year and before tax. About 10% or more goes to social insurance and income tax before your pay arrives.
- Severance is a legal right after one year, whatever your nationality or contract type — roughly one month's pay for every year worked.
- Part-time workers get weekly holiday pay once they work 15 hours or more a week, which adds up to about 20% to weekly pay.
- Your pension may be refundable. Depending on your nationality or visa, you can claim back National Pension contributions as a lump sum when you leave Korea.
- A jeonse deposit is protected only if you register. Report your address to immigration (or the local community center) and get a fixed-date stamp on your lease.
Can I rely on the results?
Use them to plan and to check what you are told, but confirm anything important with the official source. Each calculator lists what it does not cover — personal tax deductions, company rules, your visa's special conditions — so read that list before relying on a number. Results are estimates, not legal or tax advice.