Korea tax guide
Korean Tax vs National Pension and Health Insurance for Foreigners
Income Tax
Who this guide is for
- Foreign employees reading Korean payslips
- E-2 and E-7 workers checking deductions
- Foreigners comparing tax refund and pension refund
- People unsure why take-home pay is lower than salary
Quick Answer
Korean income tax, local income tax, national pension, and health insurance are different deductions. Foreign workers should not treat every payslip deduction as tax. Income tax and local income tax relate to tax filing and settlement, while pension and health insurance follow separate systems with different rules, offices, and refund or adjustment procedures.
Key points
- Not every payroll deduction is income tax.
- Income tax and local income tax are different from national pension and health insurance.
- Tax refunds and pension refunds are separate issues.
- Payslip labels should be compared with employer records and official guidance.
Step-by-step explanation
Why payslip deductions are confusing
Foreign workers in Korea often look at a payslip and see several deductions: income tax, local income tax, national pension, health insurance, employment insurance, or other items. It is easy to call all of them “tax,” but they are not the same.
This distinction matters when you ask about refunds, certificates, year-end settlement, or take-home pay. Hometax is mainly a tax system. Pension and health insurance have their own systems and offices.
Common deductions on Korean payslips
| Deduction | General meaning |
|---|---|
| Income tax | Tax withheld from salary and adjusted through year-end settlement or filing |
| Local income tax | Local tax connected to income tax, often shown separately |
| National pension | Pension contribution under the pension system, not an income tax payment |
| Health insurance | Insurance contribution under the health insurance system, not income tax |
Tax refund vs pension refund
An income tax refund may happen when the final tax calculation is lower than tax withheld. A pension lump-sum refund, when available, follows pension rules and is not paid through ordinary income tax filing. Health insurance adjustments are also separate.
If you are leaving Korea, make separate checklists: one for Hometax and tax records, one for pension, and one for health insurance. Mixing them together can cause confusion and missed steps.
What to ask your employer
Ask for a clear payslip, a withholding receipt, and year-end settlement records. If a deduction label is unclear, ask the payroll team to explain which office or system it belongs to. For tax questions, compare the withholding receipt with Hometax. For pension or insurance questions, check the relevant official service.
When to get help
Ask for help if your payslip deductions seem inconsistent, if your employer cannot explain withholding, if you changed jobs, or if you are leaving Korea and expecting refunds from more than one system. The amounts may look similar on a payslip, but the rules behind them are different.
Documents you may need
- Payslips
- Employment contract
- Withholding receipt
- Year-end settlement records
- National pension records
- Health insurance notices
- Tax payment records
Common mistakes
- Calling every deduction tax
- Expecting pension refund through Hometax
- Ignoring local income tax
- Comparing gross salary to take-home pay without deductions
- Using pension or insurance records as income tax proof
When should you ask a tax professional?
Ask a qualified tax professional if you have income from several countries, business income, unclear tax residency, treaty questions, missing documents, late filing concerns, or a visa situation that depends on tax records. This site explains general patterns only and cannot review your personal facts.
FAQ
Is national pension a tax in Korea?
National pension is not income tax. It is handled through a separate pension system with different rules and procedures.
Is health insurance part of my tax refund?
Health insurance is separate from income tax. Adjustments or refunds follow different procedures from Hometax income tax refunds.
Why do I see income tax and local income tax?
Local income tax is connected to income tax but can appear separately. Check payment and filing records carefully.
Which deduction affects year-end settlement?
Income tax withholding is directly connected to year-end settlement. Pension and insurance may also affect records, but they are separate systems.
Official Sources to Verify
Tax rules and filing procedures in Korea may change depending on your visa status, income type, tax residency, and the tax year. Before making a tax decision, always verify your situation with official sources or a qualified professional.