If you are looking for a complete guide to national health insurance in Korea for foreigners, understanding how healthcare works is essential.
If you are a foreign resident living in Korea, understanding how healthcare works can feel confusing at first.
You may wonder:
“Do I have to join Korean National Health Insurance?”
“How much do I have to pay?”
“What medical expenses are covered?”
“Do I still need private health insurance if I already have NHIS?”
Korea’s National Health Insurance system can help reduce the cost of many medical services, but it does not cover every medical expense.
For foreign residents, understanding how NHIS works can help you avoid unexpected medical bills and make better decisions about your healthcare in Korea.
In this guide, we will explain how National Health Insurance works for foreigners, who needs to enroll, what NHIS covers, how premiums work, and how private health insurance can complement public health coverage.
💡 If you also want to understand how private coverage complements public healthcare, read our full guide: Private Health Insurance in Korea for Foreigners
💡 Key Takeaway: National Health Insurance is an important part of living in Korea, but understanding its coverage and limitations is equally important.
Table of Contents
1. What Is National Health Insurance in Korea?
National Health Insurance, operated by the National Health Insurance Service (NHIS), is Korea’s public health insurance system.
It provides health insurance benefits to eligible people living and working in Korea.
The system helps reduce the amount patients have to pay when they receive covered medical treatment at hospitals, clinics, pharmacies, and other healthcare facilities.
Foreign residents can also be covered by Korean National Health Insurance when they meet the applicable enrollment requirements.
Unlike private insurance, NHIS is a public social insurance system operated under Korean law.
The amount you pay and the benefits you receive are determined according to the rules of the national health insurance system.
💡 Key Takeaway: NHIS is Korea’s public health insurance system, and eligible foreign residents can receive healthcare benefits under the same national system.
2. Who Must Enroll in NHIS in Korea?
Whether you need to enroll in National Health Insurance depends on your employment status, length of stay, visa status, and other legal conditions.
2.1 Foreign Employees
If you are a foreigner working at a workplace that is covered by Korean National Health Insurance, you are generally required to enroll as an employee subscriber.
Your employer and you normally share the health insurance contribution.
For employees, the contribution is generally divided equally between the employee and employer.
This means your employer typically pays part of your National Health Insurance contribution, while the remaining portion is deducted from your salary.
2.2 Foreign Residents Staying in Korea for 6 Months or More
Foreign residents who stay in Korea for six months or longer are generally subject to mandatory National Health Insurance enrollment as regional subscribers, subject to applicable visa and status rules.
There are certain exceptions depending on your immigration status and circumstances.
If you are a foreign resident who has been living in Korea for an extended period, you should check your individual NHIS enrollment status rather than assuming that you are automatically exempt.
2.3 Family Members and Dependents
Family members of an insured person may also qualify for dependent status when they meet the applicable requirements.
However, dependent registration is not automatic simply because you are a family member.
Eligibility can depend on factors such as family relationship, income, assets, residence status, and supporting documents.
If you are unsure whether your spouse or children can be registered as dependents, it is best to confirm the requirements with NHIS.
💡 Key Takeaway: Foreign employees and long-term foreign residents are generally subject to Korean National Health Insurance, but the exact rules depend on employment, residence period, visa status, and individual circumstances.
3. National Health Insurance in Korea for Foreigners: What Does It Cover?
National Health Insurance can significantly reduce the cost of many healthcare services.
However, NHIS does not mean that every medical expense is fully covered.
Your actual cost depends on the type of treatment, healthcare facility, treatment category, and whether the service is covered by NHIS.
3.1 Hospital and Clinic Visits
NHIS provides benefits for many medically necessary healthcare services provided at hospitals and clinics.
Depending on the type of treatment, you may pay only part of the total medical cost.
The amount you pay can vary depending on whether you visit a clinic, hospital, general hospital, or tertiary hospital.
3.2 Prescription Medication
Prescription medicines covered by NHIS can also receive insurance benefits.
After visiting a doctor, you may take your prescription to a pharmacy.
You generally pay a portion of the cost, while NHIS covers the applicable portion according to its rules.
Not every medicine or medical product is necessarily covered, so the actual amount can vary.
3.3 Dental Care
Some dental treatments are covered by National Health Insurance.
However, dental coverage depends heavily on the specific treatment.
Certain preventive or basic dental services may be covered, while other treatments and materials may be classified as non-covered services.
This means having NHIS does not necessarily mean that all dental expenses will be paid through the public insurance system.
3.4 Korean Traditional Medicine
Certain treatments provided through Korean traditional medicine, such as eligible services at Korean medicine clinics and hospitals, can also receive NHIS benefits.
Coverage depends on the specific treatment and applicable NHIS rules.
3.5 Health Checkups
NHIS also provides health screening programs for eligible insured individuals.
Depending on your eligibility, you may be able to receive national health checkups designed to identify health problems at an early stage.
Regular health screenings can be particularly useful for foreign residents who plan to live in Korea for many years.
3.6 Pregnancy and Childbirth
National Health Insurance also provides certain benefits related to pregnancy and childbirth.
Eligible pregnant women may receive support through the national healthcare system, including pregnancy-related medical benefits and other applicable programs.
Because pregnancy and childbirth can involve significant medical expenses, it is important to understand which services are covered by NHIS and which expenses may remain outside public insurance coverage.
💡 Key Takeaway: NHIS covers many important healthcare services, including hospital treatment, prescriptions, certain dental and Korean medicine services, health screenings, and pregnancy-related care. However, coverage is not unlimited.
4. How Much Does National Health Insurance Cost in Korea?
The amount you pay for NHIS depends on how you are insured.
The two main categories are employee subscribers and regional subscribers.
4.1 Employee Subscribers (직장가입자)
If you are employed by a workplace covered by National Health Insurance, your contribution is generally calculated based on your salary.
The contribution rate can change according to Korean government policy.
For 2026, the National Health Insurance contribution rate for employee subscribers is 7.19% of the applicable monthly salary base.
For employee subscribers, the contribution is generally shared equally between the employee and employer.
Therefore, you normally do not pay the full 7.19% yourself.
Your portion is generally deducted from your monthly salary.
4.2 Regional Subscribers (지역가입자)
If you are not covered as an employee subscriber, you may be classified as a regional subscriber.
For regional subscribers, premiums are calculated differently from employee subscribers.
The calculation can take into account factors such as income and assets under the applicable rules.
This means two foreign residents living in Korea may pay very different NHIS premiums depending on their individual circumstances.
If you are self-employed, a student, unemployed, or otherwise not covered through an employer, it is especially important to check how your regional premium is calculated.
4.3 How Can You Pay NHIS Premiums?
NHIS premiums can be paid through various methods.
Depending on your situation, you may receive a bill and pay through available banking or electronic payment methods.
Employee subscribers generally have their contribution deducted directly from their salary.
If you are a regional subscriber, you should check your monthly premium and payment deadline carefully.
💡 Key Takeaway: NHIS premiums are not the same for everyone. Employee premiums are generally based on salary and shared with the employer, while regional premiums are calculated under different rules.
5. How Much Do You Pay at the Hospital With NHIS?
Having National Health Insurance does not mean that you pay nothing when you visit a hospital.
Instead, NHIS generally pays a portion of eligible medical expenses, while you pay the remaining portion according to the applicable copayment rules.
For example, the amount you pay can depend on:
- The type of medical service
- Whether you visit a clinic or hospital
- The type of hospital
- The treatment you receive
- Whether the treatment is covered by NHIS
- Whether the service is classified as non-covered
This is why the final amount on a hospital bill can be different from what you expected.
One important point for foreign residents to understand is the difference between covered and non-covered medical services.
A treatment may be medically necessary but still have some expenses that are not covered by National Health Insurance.
These expenses can become an important part of your total healthcare costs.
💡 Key Takeaway: NHIS reduces the cost of eligible medical care, but you still have copayments and may also have non-covered medical expenses.
6. What Happens If You Do Not Pay Your NHIS Premiums?
If you do not pay your National Health Insurance premiums on time, you may face disadvantages under the applicable rules.
Late payment can result in additional charges and collection procedures.
In certain circumstances, unpaid premiums can also affect your eligibility to receive NHIS benefits.
For foreign residents, unpaid health insurance premiums may also be relevant to immigration and administrative matters in certain circumstances.
Therefore, it is important not to ignore an unpaid NHIS bill.
If you are having difficulty understanding your bill or believe that the amount is incorrect, contacting NHIS is better than simply leaving the premium unpaid.
💡 Key Takeaway: If you receive an NHIS bill, check the amount and payment deadline carefully. Ignoring unpaid premiums can lead to additional problems.
7. Can Foreigners Opt Out of NHIS?
Some foreign residents may be able to apply for exclusion from Korean National Health Insurance under specific legal conditions.
For example, certain foreign employees may qualify if they already receive equivalent medical benefits through foreign insurance, foreign law, or an employer-provided arrangement.
However, having private health insurance in another country does not automatically mean you can opt out of NHIS.
You may need to provide documents proving your overseas medical coverage.
💡 Key Takeaway: Foreign residents cannot simply choose not to join NHIS. Exemption is available only under specific legal conditions and requires supporting documents.
8. Why NHIS May Not Be Enough for Every Medical Expense
National Health Insurance is an important safety net, but it does not cover every healthcare expense in Korea.
This is one of the most important points for foreign residents to understand.
Some medical services, treatments, materials, or medications may be classified as non-covered services.
These expenses are generally not paid by NHIS and may need to be paid entirely by the patient.
Medical treatment can also involve additional expenses depending on the hospital, treatment method, room type, and other circumstances.
For example, a serious illness or major surgery may result in medical expenses that go beyond the basic copayments covered by the national system.
This is why some people living in Korea consider additional private health insurance.
💡 Key Takeaway: NHIS provides essential public healthcare protection, but it does not eliminate all out-of-pocket medical expenses.
9. What Is Indemnity Health Insurance (실손보험) and Why Do Foreign Residents Consider It?
One type of private insurance that many people in Korea consider is indemnity health insurance (실손보험), a type of private health insurance that helps cover eligible out-of-pocket medical expenses.
While NHIS is Korea’s public health insurance system, private health insurance is private supplementary insurance.
The two systems serve different purposes.
NHIS provides public health insurance benefits according to Korean healthcare regulations.
Private health insurance may reimburse eligible medical expenses according to the terms and conditions of the individual policy.
This can be particularly relevant when you have out-of-pocket medical expenses after receiving treatment.
However, private health insurance does not automatically cover every medical expense.
Coverage depends on the policy, treatment, exclusions, deductibles, and other conditions.
Foreign residents should therefore check the actual policy terms carefully before purchasing private insurance.
💡 Key Takeaway: NHIS and private health insurance serve different purposes, and private supplementary coverage may help with eligible out-of-pocket medical expenses that remain after NHIS benefits.
💡 To learn more about how private coverage works alongside NHIS, read our detailed guide: Private Health Insurance in Korea for Foreigners
10. NHIS and Private Health Insurance: How Can They Work Together?
NHIS and private health insurance are not necessarily alternatives.
They can serve different roles.
NHIS provides the foundation of Korea’s public healthcare system.
Private health insurance may provide additional protection for eligible expenses according to the individual policy.
For example, when you receive covered medical treatment, NHIS may first provide its public health insurance benefits.
If you have private health insurance, the policy may then reimburse certain eligible expenses that you paid yourself.
However, this does not mean that every remaining medical bill will automatically be reimbursed.
Private insurance policies have their own coverage limits, exclusions, deductibles, waiting periods, underwriting requirements, and other conditions.
For foreign residents, eligibility can also depend on residence status, visa status, age, health history, and the insurer’s underwriting rules.
Therefore, it is important to compare the actual policy conditions rather than choosing insurance simply because it is cheap.
💡 Key Takeaway: NHIS can provide the public healthcare foundation, while private health insurance may help cover eligible out-of-pocket expenses depending on the policy.
11. Useful NHIS Contact Information for Foreign Residents
If you are unsure about your NHIS enrollment, premium, exemption eligibility, or benefits, contacting the National Health Insurance Service directly is the safest way to confirm your individual situation.
11.1 NHIS Foreign Language Support
NHIS provides foreign-language consultation for foreign residents.
For assistance in English and other available languages, you can contact the NHIS foreign-language consultation service.
Foreign-language consultation:
1577-1000 → Extension 6
Foreign residents’ consultation:
033-811-2000
11.2 NHIS Main Number
National Health Insurance Service:
1577-1000
You can contact NHIS to ask about:
- NHIS enrollment
- Premiums
- Payment
- Benefits
- Eligibility
- Exemption
- Health checkups
- Other health insurance-related questions
11.3 NHIS Center for Foreign Residents
NHIS also operates services and support centers for foreign residents.
If you are living in Korea and find Korean administrative procedures difficult to understand, using the foreign-language support service can make it easier to confirm your situation.
You can also check the official NHIS website for the latest information and available services.
💡 Key Takeaway: When you have questions about your individual NHIS status, premiums, or eligibility, confirm the details directly with NHIS rather than relying only on general information.
12. Final Thoughts: Understanding NHIS Can Help You Live More Confidently in Korea
For foreigners living in Korea, National Health Insurance is one of the most important systems to understand.
NHIS can significantly reduce the cost of many medical services and provides essential protection when you need healthcare.
However, NHIS does not mean that all medical expenses are covered.
You may still have copayments and non-covered medical expenses, particularly when receiving certain treatments or services.
This is why understanding both your public health insurance and your private insurance options can be helpful.
If you are considering private health insurance in Korea, it is important to check whether you are eligible, what treatments are covered, what exclusions apply, and how the policy works together with NHIS.
Insurance should not simply be about choosing the cheapest plan.
It is more important to understand what risks you want to prepare for and whether the coverage is appropriate for your situation.
If you are a foreign resident in Korea and have questions about National Health Insurance or private health insurance, I can help you understand the differences and review available options based on your situation.
Please note that insurance eligibility, coverage, premiums, and underwriting criteria can vary depending on the insurer and individual circumstances.
💡 Key Takeaway: NHIS is an essential foundation for healthcare in Korea, while private health insurance can provide additional protection for eligible medical expenses. Understanding both can help you prepare for unexpected healthcare costs and live in Korea with greater peace of mind.
Want to Learn More?
For comprehensive policy updates, eligibility checks, or online service requests, visit the official NHIS portal:
🔗 National Health Insurance Service (NHIS) Official English Website
💡 Want to see how public and private coverage compare side by side? Read our complete comparison guide: National Health Insurance vs Private Health Insurance in Korea: 4 Essential Differences.
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