Korean Health Insurance (NHIS): Foreigner Enrollment Guide

National Health Insurance (NHI) Overview

Korea’s NHI is a single-payer system run by the National Health Insurance Service (NHIS) (국민건강보험공단). It covers all legal residents, Korean and foreign alike.

Key facts:

• Government-run, mandatory for most residents
• Covers inpatient, outpatient, prescriptions, dental basics, maternity, mental health, and oriental medicine
• You pay a copay (typically 20-30% for most services), NHIS covers the rest
• Same benefits for foreigners as Korean citizens
• NHIS card works at any participating hospital, clinic, or pharmacy nationwide
• NHIS hotline: 1577-1000 (press 7 for English/Chinese/Vietnamese)

Who Must Enroll

The 6-Month Rule

All foreigners residing in Korea for 6 months or longer must enroll in NHIS. This is not optional.

Mandatory Visa Types

Who Does NOT Enroll

• Tourists (C-3 visa holders) — not eligible
• Foreigners with equivalent coverage from their home country may apply for an exemption by submitting proof of foreign insurance to NHIS
• Diplomats and certain international organization staff (covered under separate arrangements)

Immigration Consequences

NHIS payment status is checked during visa renewals. Unpaid premiums can block your visa extension.

Monthly Premiums

Employed (Workplace Subscribers / 직장가입자)

Your employer handles enrollment and payment. The cost is split 50/50.

Example: On a 3,000,000 KRW monthly salary, you pay roughly 115,000 KRW/month for health + long-term care combined.

Self-Employed / Unemployed (Regional Subscribers / 지역가입자)

Premiums are calculated based on a point system factoring in income, property, and vehicle ownership.

The formula: Contribution Score x 211.5 KRW per point (2025 rate). NHIS assesses your score based on declared income, property value, and vehicles.

If you cannot prove your income (common for newcomers), NHIS applies an average premium until you submit documentation.

Students (D-2, D-4 Visa)

Students receive reduced rates, typically around 50% of the standard regional subscriber rate.

Rates are standardized but may vary slightly by institution. Your university international office usually handles the enrollment process.

Payment

• Bills arrive monthly, due by the 25th of each month
• Set up automatic bank transfer (자동이체) at enrollment to avoid missed payments
• Pay at banks, convenience stores, or via the NHIS app/website

What’s Covered

Covered by NHIS

Copay Summary

Copays are reduced further for cancer, rare diseases, and severe conditions (down to 5-10%).

NOT Covered by NHIS

• Cosmetic surgery and procedures (double eyelid, rhinoplasty, etc.)
• Teeth whitening, most dental implants, orthodontics
• Glasses, contact lenses for general vision correction
• Non-emergency overseas treatment
• Over-the-counter supplements and vitamins
• Private psychological counseling (outside the medical system)
• Some advanced or experimental treatments
• Private/VIP hospital rooms (standard ward is covered)
• Non-approved medications

Filling the Gaps: Supplemental Private Insurance

Many expats purchase supplemental Korean insurance (실손보험 / 실비보험) to cover:

• Portions of copays
• Dental beyond basics
• Vision care
• Private rooms
• Non-covered treatments

Cost: roughly 50,000-100,000 KRW/month from Korean insurers like Samsung Fire, Meritz, or KB Insurance.

How to Enroll

If You’re Employed

Your employer does everything. They must register you within 14 days of your employment start date.

What you need to provide:

• Alien Registration Card (ARC / 외국인등록증)
• Passport
• Employment contract

Your premium is automatically deducted from your paycheck. You will receive your NHIS card by mail (2-3 weeks).

If You’re Self-Employed, Freelance, or Unemployed

You enroll yourself after meeting the 6-month residency requirement (or immediately for eligible visa types).

Step by step:

1. Gather documents:

   • ARC (외국인등록증)
   • Passport
   • Proof of address (임대차계약서 or 주민등록등본)
   • Income documentation if available (tax returns, business registration)
   • Bank account details for automatic payment

2. Visit your local NHIS branch (국민건강보험공단 지사)

   • Find your branch at nhis.or.kr or call 1577-1000
   • Request “지역 건강보험 가입” (regional health insurance enrollment)
   • The clerk will look you up by ARC number

3. Set up payment:

   • Register automatic bank transfer (recommended)
   • Or pay monthly at convenience stores/banks

4. Receive your insurance card:

   • Issued on the spot (temporary) or mailed within 2-3 weeks
   • Processing takes 7-10 business days
   • Coverage effective date: first day of the month after approval

If You’re a Student (D-2, D-4)

Since March 2021, enrollment is mandatory and automatic upon alien registration.

1. Your university international office usually handles the initial enrollment
2. You may need to visit NHIS or submit documents through your school
3. Premium bills come to you directly

Required documents:

• ARC
• Passport
• Certificate of enrollment from your university

NHIS Office for Foreign Residents

The NHIS Seoul office operates a dedicated Foreign Resident Center with multilingual staff. Other major cities have similar services. Call 1577-1000 (press 7) to find the nearest office with English support.

The Gap Period (Before NHI)

This is the most dangerous blind spot for newcomers.

The Problem

• If you are not employed by a Korean company, NHIS coverage does not start until you have been in Korea for 6 months
• Even after the 6-month mark, processing takes 7-10 business days, and coverage starts on the first day of the following month
• During this gap (potentially 6+ months), you have zero health insurance
• A single ER visit or hospitalization without insurance can cost millions of KRW

What Things Actually Cost Without Insurance

Basic clinic visits are affordable out-of-pocket. Anything involving hospitalization or surgery gets expensive fast.

Option 1: Travel Insurance

Best for short gap periods (1-6 months). Buy before arriving in Korea.

Recommended providers:

• SafetyWing Nomad Insurance — popular with expats, covers worldwide, ~$45-70/month
• World Nomads — good for adventure activities, covers emergency medical
• Allianz Travel Insurance — established provider, various plan levels
• IMG Global — longer-term plans available

What to look for:

• Emergency medical coverage of at least $100,000
• Hospitalization coverage
• Emergency evacuation
• Coverage valid in South Korea specifically
• No gap in coverage between arrival and policy start

Option 2: Private International Health Insurance

Best for those who want comprehensive coverage during the gap or as a supplement.

Providers with Korea coverage:

• Cigna Global — flexible plans, large provider network
• BCBS Global Solutions — particularly for US citizens
• Aetna International
• Bupa Global

Cost: $100-300/month depending on coverage level and age.

Option 3: Korean Short-Term Insurance

Korean insurers offer “inbound” plans designed for foreigners:

• Samsung Fire & Marine — foreigner inbound plans
• Meritz Fire & Marine — available at Incheon Airport kiosks
• KB Insurance — foreigner-specific products

These can be purchased at dedicated kiosks in Incheon International Airport arrival halls or through their websites/agents.

Option 4: Pay Out of Pocket (Strategic)

For healthy individuals with low risk tolerance for premiums:

• Budget 100,000-200,000 KRW/month for potential clinic visits
• Keep an emergency fund of at least 5,000,000 KRW for unexpected hospitalization
• Basic clinic visits (colds, minor issues) are surprisingly affordable without insurance (30,000-50,000 KRW)
• This is a gamble — one accident can wipe out months of savings

Recommended Approach

Combine travel insurance (for catastrophic coverage) with paying out of pocket for minor clinic visits. This covers the worst-case scenario at minimal cost.

Using Your Insurance

At Hospitals and Clinics

1. Bring your NHIS card (건강보험증) to every visit
2. Present it at the reception desk (접수) when you check in
3. The hospital applies your insurance automatically
4. You pay only your copay at checkout
5. Typical clinic visit copay: 5,000 - 30,000 KRW

Without your card: You may need to pay the full amount upfront, then request reimbursement from NHIS later. Keep all receipts.

At Pharmacies

1. After your doctor visit, you receive a prescription (처방전)
2. Take it to any NHIS-participating pharmacy (약국) — virtually all pharmacies participate
3. Present your NHIS card along with the prescription
4. Pay the copay (typically 20-30% of medication cost)
5. Most prescriptions cost 3,000 - 15,000 KRW after insurance

Choosing a Hospital

• 의원 (clinic): Lowest copay (30%). Best for routine issues, cold/flu, minor injuries
• 병원 (hospital): Mid-range copay. General treatment
• 종합병원 (general hospital): Higher copay. Complex conditions, specialists
• 상급종합병원 (tertiary/university hospital): Highest copay (60% outpatient). Requires referral for lower copay rate. Places like Seoul National University Hospital, Severance, Samsung Medical Center, Asan Medical Center

Tip: Start at a local clinic. If you need specialist care, get a referral (의뢰서). Going directly to a large hospital without a referral means higher copays. See our guide to English-speaking hospitals and clinics for recommended facilities.

Free Health Checkups

NHIS provides free biennial health checkups (건강검진) at designated facilities. You will receive a notification when you are eligible. The checkup includes blood tests, chest X-ray, blood pressure, vision/hearing tests, and more.

Dependents

Who Qualifies as a Dependent

If you are an employed (workplace) subscriber, you can add family members as dependents at no additional premium (or minimal additional cost):

Income limit: If your dependent earns more than approximately 1,800,000 KRW/month from their own income, they cannot qualify as a dependent and must enroll separately as a regional subscriber.

For Regional (Self-Employed) Subscribers

Your household is billed as a unit. Family members living at the same address can be included in your household subscription. Premium increases slightly per dependent (roughly 20,000-50,000 KRW per person).

How to Add Dependents

1. Visit your local NHIS branch in person (cannot be done online)
2. Bring:
   • Your ARC and your dependent’s ARC (or passport if ARC is pending)
   • Proof of relationship: marriage certificate, birth certificate
   • Foreign documents must have apostille or embassy verification + Korean translation (notarized)
   • Proof of shared address
3. Register within 90 days of the dependent’s arrival or eligibility date
4. Late registration may result in back-payment of premiums

Document validity: Certificates typically must be issued within the last 3-9 months. Plan ahead since apostille and translation take time.

Dependent’s 6-Month Rule

Spouses and children under 19 of employed subscribers are generally eligible from arrival. Other dependents (parents, adult children) must also meet the 6-month residency requirement.

Leaving Korea

Short-Term Departure (Under 30 Days)

No action needed. Your coverage continues. Premiums continue as normal.

Extended Departure (Over 30 Days)

You have two options:

Option A: Suspend coverage

• Notify NHIS before departure
• Coverage pauses, no premiums charged while abroad
• When you return, the 6-month waiting period may apply again

Option B: Continue coverage (임의계속가입)

• Register for voluntary continuation before departing
• Continue paying your regular premium while abroad
• Coverage resumes immediately upon return with no waiting period
• Useful if you plan to return within a few months

Permanent Departure

1. Visit your local NHIS branch before your departure date
2. Inform them of your departure date and that you will not return within 30 days
3. Settle all outstanding premiums — unpaid premiums can cause problems if you ever return to Korea
4. Coverage terminates on your departure date
5. If you overpaid premiums beyond your departure date, you can request a refund of the excess

Refund Policy

Health insurance (NHIS) premiums are generally NOT refundable. Unlike the National Pension (국민연금), there is no lump-sum refund of past health insurance contributions when you leave Korea.

However:

• If you prepaid premiums for months after your departure, those excess payments are refundable
• Process the refund at the NHIS office before leaving, or designate a representative

National Pension refund (different from NHIS): If your country has a social security agreement with Korea (US, Canada, Germany, France, etc.), pension contributions may not be refundable (they transfer to your home system). If your country does not have such an agreement, you can claim a lump-sum pension refund at Incheon Airport on departure day or apply after leaving.

Seoul Marriage Migrant Health Support (2026 Expansion)

Source: April 2026 audience pulse research; Seoul Metropolitan Government 2026 welfare expansion announcements

Seoul has expanded its health support program for marriage migrants (결혼이민자, primarily F-6 visa holders) starting in 2026. This program supplements NHIS coverage with additional free services.

Free Prenatal & Postnatal Checkups

Marriage migrants registered in Seoul can receive the following at no cost, regardless of NHIS enrollment status:

• Prenatal care: All standard prenatal checkups (산전검사) including ultrasounds, blood tests, and gestational diabetes screening at designated Seoul public health centers (보건소) and partner hospitals
• Postnatal care: Postpartum health checkups for the mother, newborn screening tests, and postnatal depression screening
• Expanded in 2026: Coverage now includes dental checkups during pregnancy (previously not covered) and additional nutritional counseling sessions

Interpretation Services at Hospitals

• Free medical interpretation available at Seoul’s major public hospitals and participating private hospitals
• Languages: Vietnamese, Chinese, Filipino/Tagalog, Cambodian, Mongolian, Thai, Japanese, English, Russian, and others
• How to request: Call the Danuri Helpline (다누리 1577-1366) before your hospital visit to arrange an interpreter, or request one through your local 주민센터
• Some hospitals have on-site interpretation staff; others connect via phone or video interpretation
• The Seoul Global Center also provides medical interpretation referrals

How to Apply

1. Visit your local 주민센터 (community center/dong office) with the following documents:
   • ARC (외국인등록증)
   • Marriage certificate (혼인관계증명서) — Korean version issued by the district office
   • Proof of Seoul residency (주민등록등본 or 외국인등록사실증명)
   • Pregnancy confirmation (임신확인서) from any clinic, if applying for prenatal benefits
2. The 주민센터 staff will register you for the program and issue a voucher (바우처) for use at designated facilities
3. Processing takes 3-5 business days
4. Vouchers are valid for the duration of pregnancy through 6 months postpartum

2026 Program Expansion Details

The 2026 expansion includes:

• Removal of income threshold: Previously, only marriage migrants below a certain household income qualified. As of 2026, all marriage migrants in Seoul are eligible regardless of income.
• Extended postnatal coverage period: Increased from 3 months to 6 months postpartum
• Mental health support: Free counseling sessions (up to 8 per year) for postpartum depression or adjustment difficulties, with interpretation available
• Partner hospitals increased: The number of participating private hospitals expanded from 12 to 34 across all 25 Seoul districts (gu)
• Telehealth option: Video consultations with interpretation are now available for follow-up appointments, reducing the need for in-person visits

Related Resources

• Danuri (다누리) Helpline: 1577-1366 (24/7, multilingual) — general support for marriage migrants
• Seoul Healthy Family Support Centers (건강가정지원센터): Offer parenting classes, Korean language support, and family counseling
• Multicultural Family Support Centers (다문화가족지원센터): One in each gu, providing comprehensive support services

Common Questions

Q: Can I keep my home country’s insurance instead of NHIS? A: Possibly. If you can prove equivalent coverage through foreign insurance, you may apply for an NHIS exemption. Submit documentation to your local NHIS branch. Approval is not guaranteed.

Q: What if I can’t afford the premiums? A: NHIS offers premium reductions for low-income subscribers. Visit your local branch with proof of income (or lack thereof) to apply. Students on D-2/D-4 visas already receive reduced rates.

Q: I just arrived and need to see a doctor. What do I do? A: Go to any clinic — see our hospital-finding guide for English-speaking options. Without insurance, you pay 100% out of pocket. Basic clinic visits cost 30,000-50,000 KRW. Keep receipts. If you later enroll in NHIS, you generally cannot claim reimbursement for pre-enrollment expenses.

Q: My employer isn’t enrolling me. Is that legal? A: No. Employers are legally required to enroll employees within 14 days. Report non-compliance to NHIS (1577-1000) or the Ministry of Employment and Labor (1350).

Q: Can I choose any hospital? A: Yes. Korea has no GP/gatekeeper system. You can walk into any clinic or hospital. But starting at a clinic and getting a referral to a larger hospital results in lower copays.

Q: Do I need to pay premiums retroactively? A: If you were eligible for NHIS but did not enroll, you may be billed retroactively from your eligibility date (6 months after ARC issuance). Enroll promptly to avoid a large back-payment.

Q: Is dental cleaning really free? A: NHIS covers one scaling (치석제거) per year for adults. You pay a small copay (around 10,000-15,000 KRW), not the full price. It is heavily subsidized, not completely free.

Q: What about COVID-19 treatment? A: Treatment for infectious diseases designated by the government (including COVID-19 during outbreak periods) is covered by NHIS. Policies may change, so check current guidelines.

Sources

• NHIS Official English Guide — Guidance for Foreigners
• NHIS Contribution Rate
• 10mag — How to Enroll in Korean National Health Insurance
• Korean Health Guide — National Health Insurance
• HacksKorea — Korea NHIS Guide for Foreigners 2025
• Korean Tax Expert — Social Insurance Contribution Rates 2025-2026
• OKRecruiting — NHIS for Foreign English Teachers 2026
• SNU OIA — National Health Insurance
• International Insurance — South Korea Health Insurance
• Ctrl+Alt+Korea — Health Insurance Deep Dive for Dependents
• Gangnam Dental — Korean NHI Dental Coverage
• Expat Guide Korea — How to Cancel NHIS
• Student Insurance — NHIS Guide 2026