Complete Guide to Health Insurance for Expats in Japan
TOKYO – Whether you opt for EHI, NHI, or supplement with private insurance, understanding your options and coverage is crucial for making informed decisions about your health.

KEY TAKEAWAYS:
- Mandatory Health Insurance: All residents, including expats, must have health insurance in Japan. The main options are Employee Health Insurance (EHI) for company employees and National Health Insurance (NHI) for others like students and the self-employed.
- Coverage and Costs: EHI and NHI cover a wide range of medical services with a 30% co-payment. Private insurance can supplement coverage, offering additional benefits like international coverage.
- Enrollment and Use: EHI is handled by employers, while NHI requires registration at local offices. Always carry your health insurance card for medical services and understand your plan’s coverage to avoid unexpected costs.
English|Française|Tiếng Việt|Bahasa Indonesia|Wikang Tagalog|日本語
Understanding the Japanese Healthcare System
Moving to Japan as an expatriate is an exciting adventure, but it also involves a myriad of logistical challenges, one of the most crucial being securing health insurance. Health insurance is vital for ensuring access to necessary medical services without the burden of excessive costs.
Overview
Japan’s healthcare system is renowned for its quality and efficiency. The system is a blend of public and private health services, regulated by the government to ensure affordability and accessibility. Medical services are provided by both public and private hospitals, clinics, and medical facilities, with costs regulated by the government to keep them reasonable.
Health Insurance Mandate
In Japan, health insurance is mandatory for all residents, including expatriates. This mandate ensures that everyone has access to medical care. There are two main types of health insurance in Japan: Employee Health Insurance (EHI) and National Health Insurance (NHI).
Types of Health Insurance in Japan
1. Employee Health Insurance (EHI)
EHI is typically provided through employers and is available to employees of companies with more than five employees. This insurance covers a broad range of medical services, including outpatient care, hospitalization, surgery, and some dental care.
- Eligibility: Full-time employees of companies that offer EHI.
- Coverage: Includes medical treatments, hospitalization, surgeries, and some dental services.
- Premiums: Shared between the employer and the employee, generally deducted from the employee’s salary.
- Benefits: Employees can also get additional benefits, such as health check-ups and maternity care.
2. National Health Insurance (NHI)
NHI is available to those who are not eligible for EHI, such as self-employed individuals, part-time workers, students, and retirees. NHI offers comprehensive coverage similar to EHI.
- Eligibility: Residents not covered by EHI, including self-employed individuals and students.
- Coverage: Comprehensive medical treatments, hospitalization, and some dental services.
- Premiums: Based on income and are paid monthly.
- Benefits: Includes health check-ups and preventive care.
3. Private Health Insurance
While the public health insurance systems (EHI and NHI) cover a wide range of medical services, some expats may opt for private health insurance to supplement their coverage. Private insurance can offer additional benefits, such as more extensive dental care, private hospital rooms, and international coverage.
- Eligibility: Anyone can purchase private health insurance.
- Coverage: Varies by plan, can include additional dental care, private rooms, and coverage outside Japan.
- Premiums: Higher than public insurance, but offers more comprehensive coverage.
Enrolment Process
1. Employee Health Insurance (EHI)
- Registration: Your employer will typically handle the registration process. You will need to provide personal information and documentation, such as your residence card.
- Premiums: Deducted from your monthly salary.
- Health Insurance Card: Issued by the insurance provider, which you will need to present when receiving medical services.
2. National Health Insurance (NHI)
- Registration: Visit your local city or ward office with your residence card, passport, and proof of residence. Complete the necessary forms.
- Premiums: Calculated based on your income and paid monthly.
- Health Insurance Card: Issued by the NHI office, which you will need to present at medical facilities.
3. Private Health Insurance
- Research: Compare different private insurance providers and plans.
- Application: Submit an application directly to the insurance provider, often online.
- Approval: Once approved, you will receive a policy document and insurance card.
Costs and Premiums
1. Premium Calculation
- EHI: Premiums are generally a percentage of your monthly salary, split between you and your employer.
- NHI: Premiums are based on your previous year’s income and the number of dependents. Rates vary by municipality.
- Private Insurance: Premiums depend on the level of coverage, age, and health status of the insured.
2. Co-payments and Out-of-Pocket Expenses
Both EHI and NHI require patients to pay a portion of their medical costs, typically 30%, with the insurance covering the remaining 70%. For those aged 70 and above, the co-payment rate is reduced to 20% or even 10% depending on income. Private insurance may cover some or all of these co-payments.
Medical Services Covered
1. Outpatient Services
Includes consultations, diagnostic tests, treatments, and minor procedures. Both EHI and NHI cover these services, but patients must pay the co-payment amount.
2. Hospitalisation
Coverage includes room charges, surgeries, nursing care, and other necessary treatments. The insurance covers a significant portion, but private insurance can help cover additional costs for private rooms and extra services.
3. Dental Care
Basic dental services are covered under EHI and NHI, but for more advanced dental procedures, private insurance may be necessary.
4. Prescription Medications
Most prescribed medications are covered, with the patient paying a co-payment.
Special Considerations for Expats
Language Barriers
Language can be a significant barrier for expats seeking medical care in Japan. While many doctors and medical staff speak some English, it is beneficial to learn basic Japanese medical terms or seek services from hospitals with English-speaking staff.
International Coverage
For expats who travel frequently or split their time between Japan and other countries, international health insurance can provide coverage outside Japan. Many private insurance plans offer this option.
Maternity and Childcare
Both EHI and NHI provide coverage for prenatal care, childbirth, and postnatal care. Additionally, Japan offers a lump-sum birth allowance to help cover childbirth expenses.
How to Use Health Insurance in Japan
Visiting a Doctor
- Make an Appointment: Call or use online systems to book an appointment.
- Present Your Health Insurance Card: Always bring your health insurance card to present at the reception.
- Payment: Pay the required co-payment at the time of service.
Emergency Services
In case of an emergency, dial 119 for an ambulance. Emergency services are covered by health insurance, but you will be responsible for the co-payment.
Prescription Medications
- Visit a Pharmacy: Take your prescription to a pharmacy.
- Insurance Card: Present your health insurance card.
- Payment: Pay the co-payment for your medications.
Important Tips for Expats
- Keep Your Insurance Card Handy: Always carry your health insurance card, as you will need it for any medical services.
- Understand Your Coverage: Familiarise yourself with what is covered under your insurance plan to avoid unexpected costs.
- Regular Check-ups: Take advantage of the preventive care services offered under EHI and NHI to maintain your health.
- Stay Informed: Healthcare policies can change, so stay updated on any changes to health insurance regulations and benefits.
Conclusion
Navigating the health insurance system in Japan as an expatriate can initially seem daunting, but with the right information and preparation, you can ensure that you and your family have access to high-quality healthcare. Whether you opt for EHI, NHI, or supplement with private insurance, understanding your options and coverage is crucial for making informed decisions about your health. By following this guide, expats can confidently navigate Japan’s healthcare system and enjoy their time in this beautiful country.