Korean National Health Insurance (NHIS) in 2026: Premiums, Coverage & Guide for Foreigners
Quick Answer
Korea’s National Health Insurance (NHIS / 국민건강보험) is a mandatory single-payer system that covers nearly every resident — Korean and foreign alike. Employed workers contribute 3.595% of their monthly salary, with employers matching the same amount (combined rate: 7.19% in 2026). For outpatient visits, patients pay a copayment of around 30% at a local clinic and up to 60% at a tertiary teaching hospital. The standard inpatient copayment is 20%.
Contents
- What NHIS Is
- How Much You Pay: Premiums in 2026
- The April Premium Reconciliation: Why Extra Money Gets Deducted
- Copayment Rates by Hospital Tier
- What’s Covered — and What Isn’t
- Referral Letters and How the Hospital System Works
- Non-Covered Costs and Private Insurance
- The Annual Out-of-Pocket Ceiling
- What Foreigners Need to Know
- Related Guides
What NHIS Is
Korea runs its healthcare system through a single public insurer. There is one insurer — the National Health Insurance Service (국민건강보험공단, NHIS) — and virtually every clinic and hospital in the country is contracted with it.
When you visit a doctor, the facility bills NHIS directly for its share, and you pay only your portion at the counter. There are no claim forms to submit, no in-network providers to track down, and no bills arriving weeks later. What you pay at checkout is what you owe.
What surprises many newcomers isn’t the premium level — it’s how little paperwork is involved. You go in, get treated, pay at the counter, and leave. That’s it.
In practice: a visit to a local clinic for a cold or flu typically costs ₩5,000–₩10,000 out of pocket.
How Much You Pay: Premiums in 2026
Employed Workers (직장가입자)
The 2026 health insurance rate is 7.19% of monthly salary, split exactly 50:50 between employee and employer.
| Who Pays | Rate | Example: ₩3,500,000/month salary |
|---|---|---|
| Employee | 3.595% | ₩125,825 |
| Employer | 3.595% | ₩125,825 |
| Total | 7.19% | ₩251,650 |
On top of this, Long-Term Care Insurance (장기요양보험료) is added. It equals 13.14% of your health insurance premium (2026 rate), bringing your total health-related payroll deduction to roughly 4.07% of gross monthly salary.
Payroll deduction example: ₩5,000,000/month salary
| Item | Amount |
|---|---|
| Health insurance (employee share) | ₩179,750 |
| Long-Term Care Insurance | approx. ₩23,600 |
| Total deducted from paycheck | approx. ₩203,000 |
The 2026 rate was raised from 7.09% (which held from 2023 through 2025) — the first increase in three years.
Premium Caps and Floor
| Category | Monthly Cap (combined) | Max employee/subscriber share | Floor |
|---|---|---|---|
| Employed: salary-based premium | ₩9,183,480 | ₩4,591,740 | ₩20,160 |
| Employed: non-salary income premium | ₩4,591,740 | ₩4,591,740 | — |
| Self-employed / regional subscribers | ₩4,591,740 | ₩4,591,740 | ₩20,160 |
Self-Employed and Regional Subscribers (지역가입자)
If you’re not employed by a Korean company — freelancer, self-employed, retired, or between jobs — you’re classified as a regional subscriber. The premium calculation works differently.
2026 formula for regional subscribers:
Monthly premium = (Monthly income × 7.19%) + (Property score × ₩211.5 per point)
- Income: business income, financial income, pension income, and other sources
- Property: real estate (homes, buildings). A basic deduction of ₩100 million applies before scoring
- Vehicles: removed from the calculation as of February 2024 — car ownership no longer affects your premium
The national average monthly premium for regional subscribers in 2026 is approximately ₩90,242.
The April Premium Reconciliation: Why Extra Money Gets Deducted
Most salaried workers in Korea experience this at least once: in April, a noticeably larger amount disappears from their paycheck.
Health insurance premiums are collected monthly based on your current salary, but at the end of each year, NHIS recalculates what you should have paid based on your actual annual earnings. The difference is settled the following April. The reconciliation date is April 15 each year.
- If your income rose the previous year → additional payment required
- If your income fell, or you took parental leave → refund
If the additional amount is large, installment payment is available — up to 10 monthly installments. Some employers automatically apply this split as a company benefit, so that a large lump-sum deduction never hits a single paycheck. If your salary increased significantly in the prior year, it’s worth checking your April pay stub in advance.
Copayment Rates by Hospital Tier
Korea’s medical facilities are organized into four tiers. The higher the tier, the higher your copayment — and the stricter the referral requirement.
| Facility Type | Examples | Outpatient Copay |
|---|---|---|
| Local clinic (의원) | General practice, orthopedics, ENT | 30% |
| Hospital (병원, 30+ beds) | Small to mid-size hospitals | 40% |
| General hospital (종합병원) | Regional medical centers | 50% |
| Tertiary teaching hospital (상급종합병원) | Seoul National University Hospital, Samsung Medical Center, Asan, Severance | 60% |
For inpatient stays, the standard copayment is 20%.
A ₩500,000 procedure at a local clinic costs you about ₩150,000 out of pocket. The same procedure at a tertiary hospital costs roughly ₩300,000 — and you need a referral letter to get there in the first place.
What’s Covered — and What Isn’t
Every itemized medical receipt in Korea lists two columns: covered charges (급여) and non-covered charges (비급여). What you pay is the sum of your copay on the covered portion plus the full non-covered amount.
Covered Items (급여)
| Item | Notes |
|---|---|
| Outpatient visits | 30–60% copay depending on facility tier |
| Inpatient stays | ~20% copay |
| Surgery | Covered |
| Prescription drugs (formulary) | Covered |
| Basic dental (fillings, extractions, annual scaling) | Covered |
| Prenatal care, delivery, postnatal care | Covered + National Happy Card subsidy ₩1M–₩1.4M |
| Psychiatry (medication-based treatment) | Covered |
| Cancer, rare diseases, severe conditions | Copay reduced to 5–10% |
| Acupuncture (traditional Korean medicine) | Partially covered |
| Biennial health check-up | Free for employed subscribers |
| Emergency treatment | Covered |
Non-Covered Items (비급여)
For non-covered items, the provider sets its own price. NHIS does not regulate these costs, which is why the same treatment can vary significantly in price between clinics.
The following are clearly classified as non-covered under current NHIS rules:
| Item | Notes |
|---|---|
| Manual therapy (도수치료) | Fully non-covered |
| Cosmetic and aesthetic procedures | Fully non-covered |
| LASIK / LASEK | Non-covered |
| Glasses and contact lenses | Non-covered |
| Orthodontic treatment | Non-covered |
| Private room upgrades (single/double rooms) | Surcharge ₩100,000–₩500,000+/night |
| Herbal medicine (non-covered traditional remedies) | Non-covered |
| Psychological counseling (non-medication therapy) | Very limited NHIS coverage |
Important: Injection treatments, shockwave therapy, MRI, and CT scans may be covered or non-covered depending on the specific diagnosis, clinical indication, and how the procedure is classified. The same treatment name does not guarantee the same coverage status. Ask the clinic whether a specific item is being billed as 급여 or 비급여 before the procedure.
Referral Letters and How the Hospital System Works
Korea’s healthcare system is designed to be used in sequence:
- Local clinic (의원) — First point of contact. No appointment needed for most visits. Lowest cost.
- Hospital (병원) — When the clinic can’t handle the case, they refer you.
- General hospital (종합병원) — Specialist care.
- Tertiary teaching hospital (상급종합병원) — Top tier. Without a referral, your first outpatient consultation is 100% out of pocket.
To receive NHIS coverage at a tertiary hospital, you need a referral letter (진료의뢰서) from a lower-tier facility. Without one, NHIS does not apply to that first visit. Once admitted or scheduled for follow-up treatment, standard coverage resumes.
From experience: For lower-back pain that needed further evaluation, the first stop was a local orthopedic clinic. After an initial assessment, the doctor wrote a referral for a university hospital. The hospital registration process was straightforward, and NHIS coverage applied normally from the first covered visit. Skipping that step and going directly to the university hospital would have meant paying the full outpatient fee out of pocket.
Most Koreans don’t start with a university hospital for an ordinary illness. They walk into a neighborhood clinic — often without an appointment — get seen within 20 minutes, and pay ₩5,000–₩10,000. There’s no reason to start higher in the system than the problem requires.
Non-Covered Costs and Private Insurance
Real out-of-pocket costs often come not from copayments on covered care, but from non-covered (비급여) charges. Orthopedic treatments are a common example.
When you look at a Korean medical receipt, two totals appear: your covered copay and your non-covered charges. You pay both.
Private indemnity insurance (실손보험) is the standard Korean response to this gap. It’s a supplemental product sold by private insurers that reimburses eligible out-of-pocket and non-covered medical expenses, above a deductible threshold.
From experience: After several clinic visits for lower-back pain that involved non-covered injection treatments, the costs added up quickly — NHIS did not apply to any of them. Having a private indemnity insurance policy made it possible to recover most of those costs above the deductible.
When private insurance is worth considering:
| Situation | Need for Private Insurance |
|---|---|
| Young and healthy, occasional clinic visits | Low — NHIS alone is sufficient |
| Regular use of orthopedics, manual therapy, non-covered injections | High |
| Chronic condition with likely non-covered treatments | High |
| Expecting private room hospitalization | High |
Premium and coverage terms for private indemnity insurance vary significantly based on age, policy generation, insurer, and add-on riders. Contact insurers directly for current pricing.
The Annual Out-of-Pocket Ceiling (본인부담상한제)
One of the less-known protections built into NHIS: once your total covered copayments in a calendar year (January–December) exceed a certain threshold, NHIS reimburses the excess at year-end.
The ceiling is tiered by income decile (1st through 10th). Lower-income subscribers hit the ceiling sooner and receive more protection.
What’s excluded from the ceiling: This protection applies only to covered (급여) copayments. Non-covered charges, certain selectively covered items, items classified as full patient responsibility, and private room surcharges are not counted. Even after major surgery, if a significant portion of the bill was non-covered, the ceiling may provide limited relief — which is another reason private indemnity insurance is widely held in Korea.
Current income-tier ceiling amounts are listed on the NHIS official site.
What Foreigners Need to Know
Mandatory Enrollment
Since July 2019, any foreigner holding an Alien Registration Card (ARC) who has stayed in Korea for six months or longer is required to enroll in NHIS.
| Subscriber Type | How Enrollment Works | Notes |
|---|---|---|
| Employed at a Korean company | Enrolled as workplace subscriber from day one | Employer handles registration; 50:50 premium split |
| International student (D-2 visa) | Auto-enrolled from ARC issuance date | 50% premium reduction applies |
| Self-employed, unemployed, other | Auto-enrolled as regional subscriber after 6 months | See note on minimum premium below |
Important for foreign regional subscribers: Korean nationals pay based on their actual income and property score. For foreign regional subscribers, if the calculated premium falls below the all-subscriber average, the average is used as a floor. The 2026 minimum monthly premium for foreign regional subscribers is approximately ₩158,630 (health insurance ₩140,210 + Long-Term Care Insurance ₩18,420). This is a different figure from the Korean national regional average of ~₩90,242.
Dependent Coverage
A workplace subscriber’s spouse and children under 19 can be added as dependents at no additional premium. As of April 2024, most other dependent categories require six months of Korea residency first — but the spouse and children under 19 of a workplace subscriber are exempt from this requirement.
Consequences of Non-Payment
Unpaid premiums create problems at visa renewal. Arrears exceeding ₩500,000 can result in a refused visa extension or blocked status change. NHIS can also pursue wage or asset garnishment for persistent non-payment.
What About Home-Country Insurance?
It doesn’t matter. NHIS enrollment is mandatory regardless of whether you hold insurance from your home country. Citizens of countries with bilateral social security agreements with Korea (such as the US and Germany) may be exempt from the National Pension — but health insurance enrollment is not waivable on that basis.
Sources
