- When foreigners in Japan need private health insurance vs national health insurance
- Japan’s National Health Insurance explained — what it covers and what it doesn’t
- Top private health insurance providers for foreigners in Japan compared
- Costs by age, coverage level, and provider
- What happens if you leave Japan temporarily — travel insurance considerations
Japan has one of the world’s best healthcare systems — and mandatory national health insurance for all registered residents. But Japan’s national health insurance doesn’t cover everything, and some foreigners (new arrivals, digital nomads, those between jobs) need additional or alternative coverage. Here’s the complete guide.
Japan’s National Health Insurance: The Foundation
All foreigners registered as residents in Japan must enroll in one of Japan’s health insurance programs:
1. Shakai Hoken (社会保険) — Employer Health Insurance
If you’re employed full-time by a Japanese company, you’re automatically enrolled in Shakai Hoken:
- Premium split: ~50% employer, ~50% employee
- Employee cost: ~5% of monthly salary
- Coverage: 70% of medical costs (you pay 30%)
- Also includes: Pension (厚生年金) and employment insurance (雇用保険)
This is the best health insurance situation for most foreigners in Japan — comprehensive coverage at employer-subsidized rates.
2. Kokumin Kenko Hoken (国民健康保険 / NHI) — National Health Insurance
For self-employed people, freelancers, those between jobs, or those on certain visa types:
- Premium: Calculated based on previous year’s income and family size
- New arrivals with no Japan income: Minimum premium ~¥2,000–6,000/month
- After first year: Can rise significantly based on declared income
- Coverage: 70% of medical costs (you pay 30%)
NHI enrollment happens at your city hall (区役所/市役所). It’s mandatory — you cannot legally opt out if you’re a registered resident.
What Japan’s Health Insurance Does NOT Cover
Despite excellent coverage, gaps exist:
| Not Covered by NHI/Shakai Hoken | Notes |
|---|---|
| Dental cosmetic work | Fillings and extractions covered; crowns, implants, and orthodontics usually are not |
| Glasses and contact lenses | Generally not covered for adults |
| Private hospital room | If you want a private room vs shared ward, you pay extra |
| Some alternative medicine | Traditional Japanese medicine (kampo) is partially covered; acupuncture/massage varies |
| Maternity semi-private rooms | Standard birth is covered; enhanced rooms are extra |
| Medical care abroad | No coverage outside Japan (important for frequent travelers) |
| Some preventive screenings | Comprehensive health checks (人間ドック) partially subsidized but not fully covered |
When Do Foreigners Need Private Health Insurance?
Situation 1: You’re Not Yet Enrolled in NHI
If you’ve just arrived in Japan and haven’t registered your address at city hall yet (required before NHI enrollment), you have a gap in coverage. This gap is usually short (1–2 weeks), but it exists.
Situation 2: Digital Nomad Visa Holders
The Japan Digital Nomad Visa requires proof of private health insurance — NHI is not automatically available on this visa category. You must bring coverage from your home country or purchase an international plan.
Situation 3: Short-Term Visitors
Foreigners on tourist visa (90 days or less) cannot enroll in NHI. If you’re in Japan for less than 3 months and get sick, you pay 100% of costs unless you have travel or private insurance.
Situation 4: Supplementing NHI Coverage
Some foreigners purchase supplemental private insurance to cover the 30% co-pay under NHI, dental, vision, or other gaps.
Situation 5: Travel Outside Japan
When you travel outside Japan, your Japanese health insurance provides no coverage. You need travel insurance for trips abroad.
Top Private Health Insurance Options for Foreigners in Japan
1. AXA Japan — Best Comprehensive Coverage
Best for: Long-term residents wanting comprehensive local + international coverage Coverage: Inpatient, outpatient, dental, vision options Monthly cost estimate: ¥15,000–50,000 depending on age and coverage level International coverage: Yes — plans can include worldwide coverage English support: ✅ English-speaking customer service
AXA’s Japan plans are popular among corporate expats and provide genuine comprehensive coverage including dental and international travel.
2. Tokio Marine (東京海上) — Best Japanese Insurer
Best for: Foreigners who prefer a major Japanese insurer with local infrastructure Coverage: Broad hospital and outpatient coverage; cancer rider available Monthly cost estimate: ¥8,000–35,000 English support: Partial (major claims can be handled in English)
Tokio Marine is Japan’s largest insurer. Their expat/foreigner plans provide solid local coverage. The main limitation is that English support is less robust than international insurers.
3. CIGNA Global — Best for International Coverage
Best for: Expats who travel frequently or may return home Coverage: Worldwide coverage, hospital, outpatient, mental health, evacuation Monthly cost estimate: $100–400/month (USD-denominated plans) English support: ✅ Full English
CIGNA Global is designed for internationally mobile people. If you’re not sure how long you’ll stay in Japan or you travel frequently for work, a CIGNA plan maintains coverage across countries. More expensive than local plans but provides portability.
4. SafetyWing Nomad Insurance — Best for Short-Term and Nomads
Best for: Digital nomads, short-term visitors, people between visas Coverage: Inpatient, some outpatient, emergency evacuation Monthly cost estimate: ~$45/month (basic), ~$150/month (comprehensive) English support: ✅ Full English
SafetyWing is designed for remote workers and digital nomads. It’s much cheaper than traditional international insurance and provides adequate coverage for accidents and emergencies. Not suitable as your only coverage for serious medical conditions or as a substitute for NHI in Japan.
Best use case: Gap coverage (between NHI enrollment), digital nomad visa requirement, travel insurance for trips outside Japan.
5. Aetna International — Best for US Citizens
Best for: American expats who want US-style insurance that works in Japan Coverage: Comprehensive with US-style billing and coverage Monthly cost estimate: $200–600/month English support: ✅ Full English
Aetna International has specific plans designed for US citizens abroad. Useful for Americans who want insurance that interfaces with US billing systems and has strong US-based customer service.
Private Insurance Cost Comparison
| Provider | Monthly (30-year-old) | Monthly (50-year-old) | Coverage Level |
|---|---|---|---|
| SafetyWing (basic) | ~¥7,000 | ~¥9,000 | Emergency/accident |
| Tokio Marine | ¥10,000–20,000 | ¥20,000–40,000 | Comprehensive local |
| AXA Japan | ¥15,000–25,000 | ¥25,000–50,000 | Comprehensive + international |
| CIGNA Global | ¥15,000–40,000 | ¥30,000–60,000 | International comprehensive |
Prices are estimates and vary significantly by plan details, deductibles, and coverage options.
Recommended Setup by Situation
| Your Situation | Recommended Coverage |
|---|---|
| Employed full-time in Japan | Shakai Hoken (mandatory, employer-provided) |
| Self-employed/freelancer in Japan | NHI + optional supplemental |
| Digital Nomad Visa holder | Private international insurance (CIGNA or SafetyWing) |
| Short-term visitor (< 90 days) | Travel insurance before arrival |
| Traveling outside Japan | SafetyWing or AXA travel add-on |
| New arrival, not yet enrolled | SafetyWing gap coverage during enrollment period |
The 30% Co-Pay Problem
Under Japan’s national health insurance, you pay 30% of all medical costs at point of care. For most everyday care (doctor visits ¥1,000–3,000, prescriptions ¥200–2,000), this is manageable.
However, the High-Cost Medical Expense System (高額療養費制度) caps your monthly out-of-pocket costs:
- Most income brackets: ¥80,000–100,000/month maximum
- Higher income: ¥150,000–250,000/month maximum
This cap is a significant safety net — a serious illness won’t bankrupt you even under NHI. This is why many Japan residents rely on NHI alone without supplemental insurance.
Mental Health Coverage in Japan
Mental health services are available under Japan’s national health insurance, but:
- English-speaking mental health providers are limited outside Tokyo and Osaka
- Stigma around mental health means services are underutilized relative to need
- Wait times for English-language therapy can be long
Resources:
- TELL Japan (Tokyo English Lifeline) — counseling and crisis support in English
- AMDA International Medical Information Center — multilingual referrals
- Some international insurers (CIGNA, AXA) include mental health coverage with their plans
Frequently Asked Questions
Do foreigners need health insurance in Japan? Yes — enrollment in Japan’s national health insurance (NHI or Shakai Hoken) is mandatory for all registered residents. Opting out is not legal. Private insurance can supplement NHI but typically replaces it only for non-residents (tourists, digital nomad visa holders).
Is healthcare free in Japan for foreigners? No — but it’s heavily subsidized. Under NHI, you pay 30% of medical costs. A doctor visit typically costs ¥1,000–3,000 out of pocket, and hospital stays are capped at ¥80,000–100,000/month regardless of actual cost.
What does Japan’s national health insurance not cover? Cosmetic dental work, glasses and contacts for adults, private hospital rooms, medical care outside Japan, and most cosmetic procedures. Some supplemental private insurance addresses these gaps.
Do I need travel insurance when visiting Japan? If you’re visiting Japan as a tourist (not a registered resident), your home country’s travel insurance or a plan like SafetyWing is essential — Japan’s NHI is not available to non-residents.