Written by How to Join Korea National Health Insurance as a Foreigner
If you move from the United States to South Korea for work, study, marriage, family, or another long-term stay, Korea National Health Insurance can become a required part of life. This guide explains the public NHIS enrollment routes, not travel insurance.
2026 check: The employee health insurance contribution rate is 7.19% of monthly wage, usually split 50/50 between employee and employer. Regional/self-employed subscribers are assessed by contribution score × KRW 211.5 per point.
Who needs Korea National Health Insurance?
Foreign nationals and overseas Koreans who register and live in Korea long term are generally covered through one of three routes: employee insured, regional/self-employed insured, or dependent. Foreigners who stay in Korea for over six months are generally subject to mandatory regional NHIS enrollment unless covered through another recognized route.
1. If you work for a Korean employer
If you are employed by a company covered by Korea National Health Insurance, you are generally enrolled as an employee insured person. Your contribution is normally deducted from payroll.
| Item | 2026 rule |
|---|---|
| Formula | Monthly wage × 7.19% |
| Share | Employee 50% / employer 50% |
| Process | The employer normally reports acquisition of employee-insured eligibility to NHIS. |
2. If you are not covered by an employer
If you are not enrolled through a workplace, you may become a regional or self-employed insured person. NHIS guidance says foreigners and overseas Koreans who have stayed in Korea for over six months are generally subject to mandatory subscription.
Regional premium: NHIS calculates the household contribution using income, property, and other assessed factors. In 2026, the contribution score is multiplied by KRW 211.5. The actual NHIS bill controls.
3. If you want dependent coverage
You may be able to register as a dependent under a spouse, parent, or other eligible family member who is employee insured. NHIS checks income, property, relationship, and sometimes marital status. A common income threshold is total annual income below KRW 20 million, but other rules can apply.
For U.S. applicants, prepare family documents such as marriage certificates, birth certificates, divorce documents if relevant, passports, residence cards, Korean translations, notarization, and Apostille or official confirmation when required.
Step-by-step checklist
Can U.S. insurance replace NHIS?
Usually, no. U.S. private insurance, travel insurance, Medicare, or Medicaid does not automatically replace Korean NHIS obligations. Some employee-insured foreigners may request exclusion only if equivalent medical benefits are proven under foreign law, foreign insurance, or an employer contract, and the required NHIS documents are accepted.
Practical warning: Do not assume a U.S. insurance card will solve routine medical coverage in Korea or remove NHIS enrollment requirements. Confirm your status directly with NHIS.
Contacts
- NHIS main call center: 1577-1000
- English consultant line: 033-811-2000
- 🔗NHIS English website
Sources
Bottom line
If you are moving from the United States to Korea for more than a short visit, plan NHIS early. Workplace employees are usually enrolled through their employer; long-term residents without workplace coverage may be billed as regional subscribers after the six-month mark; dependents should prepare U.S. family documents before departure when possible.