Will I really be auto-enrolled after 6 months?

Yes. Under the mandatory enrollment system in force since July 2019, foreigners residing 6+ months are auto-enrolled as local subscribers regardless of intent. Enrollment cannot be refused, and non-payment leads to late fees plus possible disadvantages in visa renewal and re-entry.

How much is the premium, and what happens if I don't pay?

Foreigner local subscribers pay about KRW 142,000/month (2026 average). Workplace subscribers pay roughly 3.545% (employee share) of monthly salary. Non-payment accrues late fees; after 6+ months unpaid, NHIS shares the data with immigration and can affect visa renewal, re-entry, and permanent residence applications.

Can I skip Korean health insurance if I have home-country coverage?

No. Korean health insurance is mandatory regardless of home-country coverage. Short-term posted workers from countries with social security agreements (SSAs) can be exempted from the National Pension only; health insurance is generally not exempted. Home-country insurance is rarely usable directly at Korean clinics — most cases require post-hoc reimbursement claims.

Do accompanying family members (F-3) pay separately?

Dependents of workplace subscribers (spouse, children) can be added as dependents without additional premiums. For local subscribers, household members are either billed individually or as a single household premium. Confirm dependent eligibility with NHIS or HR.

Do I need a separate NHI card when going to the hospital?

Just showing your Alien Registration Card lets medical providers verify your eligibility via NHIS instantly — no separate card needed. Some facilities may ask for the paper NHI card, so keep it with your ARC. The NHIS mobile app (The Health Insurance) also issues a digital eligibility certificate.

I heard ER bills are very high — is it covered?

ER copay is 30–50% when classified as emergency, 50–60% for non-emergency (mild) cases — higher than regular outpatient. ER also has many non-covered items, so bills can run hundreds of thousands of won even after insurance. When possible, use a local clinic or hospital first for non-urgent care.

Are dental and oriental medicine covered?

Dental: basic care like cavity fillings, extractions, and root canals is covered (outpatient 30–50%); implants, orthodontics, and cosmetic work are mostly non-covered. Oriental medicine: acupuncture, moxibustion, and cupping have partial coverage (30–50% outpatient). Verify the non-covered scope with NHIS or your provider.

What happens when I leave Korea permanently?

Before departure, file a loss-of-eligibility report at an NHIS branch or via the 1577-1000 helpline so premiums stop. Without it, billing may continue, and on future re-entry you'll need to settle unpaid premiums before visa renewal proceeds. Departure proof (passport stamp or immigration certificate) is required.

Foreigner Korea health insurance enrollment guide (2026)

Foreigners residing in Korea for 6+ months are subject to mandatory National Health Insurance (NHI) enrollment. This guide covers the workplace vs. local subscriber split, social-security-agreement exemptions, premiums, copay ratios, and procedures — based on NHIS official information.

Korea's National Health Insurance at a glance

Korea's National Health Insurance (NHI) is a single-payer, mandatory public health insurance system operated by the National Health Insurance Service (NHIS). All Korean nationals and foreigners residing in Korea for 6+ months are required to enroll, and after paying premiums you receive medical care with only the prescribed copay at clinics and hospitals. Foreigners enroll in two main ways. ① **Workplace subscribers**: Foreigners employed full-time at a Korean company (E-7, F-2, F-4, F-5, F-6, etc.) are enrolled automatically by the employer along with the four insurances. Premiums are split 50/50 between employee and employer. ② **Local subscribers**: Self-employed, freelancers, students (D-2), dependents (F-3), and other foreign residents become local subscribers automatically after 6 months of residence. From July 2019, the mandatory enrollment system means that 6+ months of residence triggers automatic enrollment as a local subscriber, regardless of intent. Non-payment of premiums can lead to disadvantages in future visa renewal and re-entry. This guide covers enrollment procedures, premiums, copay ratios, and the possibility of exemption under social security agreements (SSAs) for both workplace and local subscribers.

Four enrollment types

Workplace
Workplace subscriber (full-time employment)
Foreigners hired full-time at a Korean company. Employer enrolls together with the four insurances. Premium is about 7.09% of monthly salary (2026), split 50/50. Dependents (F-3) can be added free of charge.
Local
Local subscriber (self-employed, students, others)
Foreigners not on workplace insurance. Auto-enrolled after 6 months of residence. The default premium is the foreigner average (KRW ~142,000/month in 2026). Reporting home-country income/assets may shift to the standard local subscriber formula.
Voluntary
Voluntary continuation (after leaving employment)
After leaving employment, a former workplace subscriber can continue under workplace-level premiums for up to 36 months. Apply within 2 months of losing workplace status.
SSA exemption
Social Security Agreement exemption
Short-term posted workers from countries with SSAs can be exempted from the National Pension upon proof of home-country coverage. However, health insurance is generally not exempted (mandatory enrollment continues).

Enrollment and registration procedure

The standard process for enrolling in Korean health insurance. Workplace is fully handled by the employer; local subscribers may need to file in person.

11. Workplace subscribers — The HR team submits the eligibility acquisition report to NHIS within 14 days. You only need to provide ARC and a passport copy to HR.
22. Local subscribers — Auto-enrolled at the 6-month mark. Visit your nearest NHIS branch to file an alien eligibility confirmation report (ARC, passport, immigration record certificate).
33. Dependent registration — A workplace subscriber's spouse and children (F-3) can be registered as dependents free of charge through the NHIS branch or HR. Spouses must meet income/asset requirements.
44. Premium billing — NHIS sends monthly bills to your ARC-registered address. Setting up auto-debit is recommended. Non-payment incurs late fees, plus potential consequences for visa renewal and re-entry.
55. Medical use — Present your ARC or NHI card at medical providers. Copay varies by facility and care type (outpatient 30–60%, inpatient 20%).

Premiums and copay ratios (2026)

**Premiums** — Workplace subscribers pay about 7.09% (2026) of monthly salary, split 50/50 with the employer. Foreigner local subscribers pay the average premium (about KRW 142,000/month) by default, or can switch to the standard local-subscriber formula (points-based) by declaring home-country income/assets. Long-Term Care Insurance is about 12.95% of the health premium. **Copay ratios** — Outpatient: 30% at clinics, 40% at hospitals, 50% at general hospitals, 60% at tertiary hospitals. Inpatient: 20% across all facilities, with an annual out-of-pocket cap (KRW 810K–6.04M depending on income decile). Emergency room: 30–50% if recognized as emergency, 50–60% if non-emergency. Drug copay is 30–50% depending on drug classification. **Non-covered care** — Services outside NHI (cosmetic procedures, certain dental/oriental medicine, non-covered drugs) are 100% out of pocket. Facilities with high non-covered ratios can produce high out-of-pocket costs — confirm non-covered items before treatment.

Timing and visa status requirements

After receiving the Alien Registration Card, workplace subscribers are enrolled automatically by the employer. Local subscribers are auto-registered by NHIS at the 6-month residence mark; foreigners are encouraged to visit an NHIS branch for an eligibility confirmation. Short-term stays (under 6 months, B-2, C-3, D-3, etc.) are not subject to mandatory enrollment, but coverage begins automatically at the 6-month mark. Before leaving Korea permanently, file a loss-of-eligibility report with NHIS to stop premium billing.

Frequently asked questions

Will I really be auto-enrolled after 6 months?: Yes. Under the mandatory enrollment system in force since July 2019, foreigners residing 6+ months are auto-enrolled as local subscribers regardless of intent. Enrollment cannot be refused, and non-payment leads to late fees plus possible disadvantages in visa renewal and re-entry.
How much is the premium, and what happens if I don't pay?: Foreigner local subscribers pay about KRW 142,000/month (2026 average). Workplace subscribers pay roughly 3.545% (employee share) of monthly salary. Non-payment accrues late fees; after 6+ months unpaid, NHIS shares the data with immigration and can affect visa renewal, re-entry, and permanent residence applications.
Can I skip Korean health insurance if I have home-country coverage?: No. Korean health insurance is mandatory regardless of home-country coverage. Short-term posted workers from countries with social security agreements (SSAs) can be exempted from the National Pension only; health insurance is generally not exempted. Home-country insurance is rarely usable directly at Korean clinics — most cases require post-hoc reimbursement claims.
Do accompanying family members (F-3) pay separately?: Dependents of workplace subscribers (spouse, children) can be added as dependents without additional premiums. For local subscribers, household members are either billed individually or as a single household premium. Confirm dependent eligibility with NHIS or HR.
Do I need a separate NHI card when going to the hospital?: Just showing your Alien Registration Card lets medical providers verify your eligibility via NHIS instantly — no separate card needed. Some facilities may ask for the paper NHI card, so keep it with your ARC. The NHIS mobile app (The Health Insurance) also issues a digital eligibility certificate.
I heard ER bills are very high — is it covered?: ER copay is 30–50% when classified as emergency, 50–60% for non-emergency (mild) cases — higher than regular outpatient. ER also has many non-covered items, so bills can run hundreds of thousands of won even after insurance. When possible, use a local clinic or hospital first for non-urgent care.
Are dental and oriental medicine covered?: Dental: basic care like cavity fillings, extractions, and root canals is covered (outpatient 30–50%); implants, orthodontics, and cosmetic work are mostly non-covered. Oriental medicine: acupuncture, moxibustion, and cupping have partial coverage (30–50% outpatient). Verify the non-covered scope with NHIS or your provider.
What happens when I leave Korea permanently?: Before departure, file a loss-of-eligibility report at an NHIS branch or via the 1577-1000 helpline so premiums stop. Without it, billing may continue, and on future re-entry you'll need to settle unpaid premiums before visa renewal proceeds. Departure proof (passport stamp or immigration certificate) is required.

Related tools and guides

Official Sources

Always verify with the official sources below

Foreigner Korea health insurance enrollment guide (2026)

Korea's National Health Insurance at a glance

Four enrollment types

Workplace subscriber (full-time employment)

Local subscriber (self-employed, students, others)

Voluntary continuation (after leaving employment)

Social Security Agreement exemption