Contact
Report a calculation error, suggest a feature or ask about partnerships by email. I usually reply within 2–3 working days.
Reporting an error
- Which calculator or page you used
- The values you entered
- The result you expected and where it came from (payslip, official notice, etc.)
Please do not send your residence card number, bank details or photos of your payslip. The numbers alone are enough.
Need help with your own case?
I cannot give individual legal or tax advice. These official services help foreigners, most with interpretation for English and other languages:
| Service | Phone | For |
|---|---|---|
| Ministry of Employment and Labor | 1350 | Unpaid wages, severance, minimum wage, leave |
| National Tax Service | 126 | Income tax, year-end settlement, flat tax |
| National Pension Service | 1355 | Pension coverage and refunds |
| National Health Insurance Service | 1577-1000 | Health insurance premiums |
| Korea Immigration Service / Hi Korea | 1345 | Visas and residence, multilingual |