If you’ve been in Korea for more than a few months, you’ve probably already been enrolled in the national health insurance system — possibly without fully understanding what it is or how it works.
Korea’s National Health Insurance Service (NHIS) is one of the most comprehensive public health systems in Asia. For foreigners living here, understanding how it works can save you a lot of money and a lot of confusion at the hospital.
Who Has to Enroll?
Since 2019, enrollment in Korea’s national health insurance has been mandatory for most foreign residents who hold a visa valid for 6 months or longer.
| Visa Type | Enrollment Status |
|---|---|
| D-2, D-4 (student visas) | Mandatory |
| E-series (work visas) | Mandatory |
| F-series (family, permanent resident) | Mandatory |
| Short-term visas under 6 months | Not eligible |
| Diplomatic visas | Exempt |
If you’re employed at a Korean company, your employer handles enrollment automatically and covers half your premium. If you’re self-employed, a student, or otherwise not covered through an employer, you enroll as a local subscriber and pay the full premium yourself.
How Much Does It Cost?
Your monthly premium depends on your income and how you’re enrolled.
If You’re an Employee
Your premium is calculated as a percentage of your monthly salary. In 2026, the total rate is 7.09% of your gross monthly income, split evenly between you and your employer — so you personally pay around 3.545%.
| Monthly Salary | Your Monthly Premium (approx.) |
|---|---|
| ₩2,000,000 | ~₩70,900 |
| ₩3,000,000 | ~₩106,350 |
| ₩4,000,000 | ~₩141,800 |
| ₩5,000,000 | ~₩177,250 |
If You’re a Local Subscriber
Your premium is calculated based on income, assets, and other factors. It varies quite a bit from person to person. The NHIS website has a calculator where you can get an estimate based on your situation.
What Does It Actually Cover?
| Service | Coverage |
|---|---|
| Hospital outpatient visits | 70–80% covered |
| Inpatient hospital stays | 80% covered |
| Surgery | 80% covered |
| Prescription medications | 70–80% covered |
| Dental (basic) | Partial coverage |
| Mental health services | Partial coverage |
| Cosmetic procedures | Not covered |
| Health screenings (every 2 years) | Free for enrolled members |
The 20–30% you pay out of pocket is called the copayment. For most routine visits this ends up being quite affordable — a typical clinic visit might cost you ₩3,000–₩10,000 out of pocket. For serious conditions requiring extended hospitalization or major surgery, costs can add up. That’s where supplementary private insurance comes in, but that’s a separate topic.
How to Use It at a Hospital
Using your health insurance in Korea is straightforward once you know the process.
Step 1. Present your ARC at the reception desk. Your ARC number is linked to your insurance, so the physical card isn’t always necessary.
Step 2. See the doctor. Treatment notes and prescriptions are recorded in the system.
Step 3. Pay your copayment at reception on the way out. The insurance portion is billed directly to NHIS.
Step 4. Take your prescription to any pharmacy nearby. You pay the copayment there too.
One thing worth knowing — Korea has a tiered hospital system. Starting at a local clinic rather than going straight to a large hospital saves you money, because copayments increase at higher-tier facilities.
What Changed for Foreigners in 2026
The NHIS has tightened verification requirements for foreign subscribers this year. If your residency status changes — visa renewal, job change, address update — you’re expected to notify NHIS within 14 days. Missing this can result in retroactive premium adjustments, which can catch people off guard.
Premium calculation for local subscribers was also adjusted in 2026 to more accurately reflect actual income rather than estimated income. If your income dropped significantly, it may be worth requesting a premium reassessment directly through NHIS.
Common Questions (Q&A)
Do I get coverage from day one?
For employees, coverage starts from your first day of employment. For local subscribers, it starts from the date of enrollment.
What if I miss a premium payment?
Coverage is suspended after a period of non-payment. You’ll need to pay the outstanding balance to reinstate it. Unpaid premiums accumulate, so it’s better to contact NHIS early if you’re running into difficulty.
Can I use Korean health insurance abroad?
No. NHIS only covers treatment received in Korea. For overseas medical care, you’d pay out of pocket and apply for reimbursement afterward — though reimbursement is typically limited to what the treatment would have cost in Korea.
I’m leaving Korea — what happens to my coverage?
Coverage ends when you depart. If you’ve overpaid premiums, you can apply for a refund through NHIS before leaving.
Korea’s health insurance system is genuinely one of the better public healthcare deals available anywhere. As a foreigner enrolled in the system, you have access to the same coverage as Korean nationals. The main thing is knowing how to use it properly and keeping your information up to date when things change.
References :
National Health Insurance Service nhis.or.kr
Health Insurance Review & Assessment Service hira.or.kr
Jung | Korea Insurance Guide
I have spent several years navigating the Korean insurance system as a foreigner. After making costly mistakes early on, I started writing the guides I wished had existed. All content is based on official sources including the NHIS, FSS, and relevant Korean government agencies, and updated regularly.
⚠️ Disclaimer: This article is for general informational purposes only. Insurance coverage, eligibility, and costs vary by individual circumstances — visa type, employment status, and personal situation all affect what applies to you. Before making any insurance decisions, always confirm directly with your insurer, the NHIS, the Financial Supervisory Service (FSS), or a licensed insurance advisor in Korea. This site does not provide legally binding insurance advice.