Health Insurance in Japan for Foreigners: The Complete Guide Series
If you live in Japan, you need health insurance. It's not optional: it's the law.
Japan operates one of the world's most comprehensive universal healthcare systems. Every resident staying three months or longer, regardless of nationality, must enroll in a public health insurance plan. Under this system, you pay just 30% of medical costs out of pocket, and a built-in safety net called the High-Cost Medical Expense Benefit caps your spending based on income. When the system works as intended, the risk of medical bankruptcy is virtually zero.
But the system is complex, almost entirely documented in Japanese, and changing fast. Insurance cards have been replaced, premiums now include a new child-support levy, the caps on medical spending rose in August 2026, a law passed in 2026 will make normal childbirth free, and from June 2027 unpaid premiums can block a visa renewal.
This series was built to help you keep up.
About This Series
"Health Insurance in Japan for Foreigners" is a 9-article guide series that explains Japan's health insurance system for international residents, from the basics of public insurance to premiums, seeing a doctor, having a baby and leaving Japan.
Who this series is for:
- Foreign employees in Japan (full-time, freelance, part-time)
- International students
- Spouse visa holders
- People planning to move to Japan
What makes this series different:
- Based on primary sources from the health ministry, the Japan Pension Service, the Immigration Services Agency and municipal governments
- Written from a neutral standpoint: we don't sell insurance
- Updated for the FY2026 premiums, the August 2026 change to the High-Cost Medical Expense Benefit and the June 2027 visa rule
- Practical guidance by residence status
- Part of our "Living & Money Guide for Foreign Residents in Japan" alongside our NISA investment series
All 9 Articles at a Glance
① The Complete Guide (Pillar Article)
Your starting point. The three pillars of the system, which one applies to you by visa type, the 14-day enrollment rule, the three benefits only Shakai Hoken offers, what the 30% copay covers, the High-Cost Medical Expense Benefit with the August 2026 caps and new annual cap, how premiums work, the switch to My Number Cards and the optional Specified Residence Card, which social security agreements cover Japanese health insurance, and the June 2027 rule.
→ ① Health Insurance in Japan for Foreigners: The Complete Guide
② NHI Deep Dive
For freelancers, the self-employed, students and anyone not on employer insurance. Who is on NHI, the 14-day rule, the documents you need, which visas qualify, how premiums are built (including the new child-support portion and the FY2026 caps), a worked example, the 70/50/20% reductions with FY2026 thresholds, why a zero-income declaration matters, what NHI covers, how to pay, and when Voluntary Continuation of your old employer's insurance is cheaper.
→ ② National Health Insurance (NHI) Deep Dive
③ Shakai Hoken Deep Dive
For company employees. The five insurances in one package, who qualifies (including the part-timer expansion and its next steps from October 2027), how premiums are set from your Standard Monthly Remuneration with FY2026 rates, the sickness, maternity and dependent benefits, your options when you leave a job, avoiding gaps between jobs, which social security agreements exempt you from Japanese health insurance, what to do if your employer won't enroll you, and how to read your pay slip.
→ ③ Shakai Hoken (Employee Insurance) Guide
④ The Comparison
NHI and Shakai Hoken side by side on 14 points, the premium gap at the same income, the benefit gap when you can't work or have a baby, the six gaps that private insurance can fill, the main types of private insurance and whether foreigners can buy them, recommended combinations for employees, freelancers, students, accompanying spouses and working holiday makers, and the three most common insurance mistakes.
→ ④ NHI vs Shakai Hoken vs Private Insurance
⑤ Practical Guide: Seeing a Doctor
The article to open in a waiting room. Clinic or hospital, which department to choose, the seven steps from reception to the pharmacy, what to show at reception now that old insurance cards have expired, typical costs, finding English-speaking facilities and interpreters, ambulances (119) and the #7119 advice line, after-hours care, dental care, over-the-counter medicines and a list of essential phrases.
→ ⑤ How to See a Doctor in Japan
⑥ The 2027 Rule Change
The most urgent article in the series. From June 2027, unpaid NHI premiums and National Pension contributions can lead to a visa renewal or change being denied. What will be checked, who is most at risk, the separate permanent residency rule that takes effect on April 1, 2027, how to clear arrears or set up installments, the job-change gap, what employers need to do, and an action checklist.
→ ⑥ The 2027 Rule: Unpaid Premiums Will Block Your Visa Renewal
⑦ The Cost Breakdown
The numbers article. NHI premiums at six income levels using a Tokyo ward's official FY2026 rates and how much your own city can differ, the extra cost from age 40, Shakai Hoken premiums at FY2026 rates, the effect of family members, the first year in Japan, the High-Cost Medical Expense Benefit caps with a worked example, the National Pension, the effect on take-home pay, and premium reductions.
→ ⑦ How Much Does It Cost? Premium Simulations by Income
⑧ Leaving Japan
Everything to handle before you go: the move-out notification, leaving NHI or Shakai Hoken, the pension Lump-Sum Withdrawal Payment (amounts, the 60-month cap, the 2-year claim window and how to recover the withheld tax), when to keep your pension record under a social security agreement instead, settling premiums, overseas medical claims and a 30-day checklist.
→ ⑧ Leaving Japan: Insurance Exit, Pension Refund & Pre-Departure Checklist
⑨ Having a Baby in Japan
Pregnancy and childbirth for foreign residents: the Maternal and Child Health Handbook and the ¥100,000 Pregnancy Support Payment, prenatal checkup subsidies, what delivery actually costs, C-sections and epidurals, the ¥500,000 lump sum, maternity pay and childcare leave benefits (including the 80% Post-Birth Leave Support Benefit), premium exemptions for NHI members, procedures after the birth, and the 2026 law that will make normal delivery free by June 2028.
Find the Right Article for Your Situation
Just arrived in Japan or planning to move: Start with ① The Complete Guide for the big picture, then ② NHI Deep Dive for enrollment steps. Read ⑤ Seeing a Doctor early so you're prepared before you need care.
Working as a company employee: ③ Shakai Hoken Deep Dive explains your coverage in detail. Check ④ The Comparison to see if supplemental private insurance is worth it. ⑦ The Cost Breakdown shows your actual premium burden.
Freelancer or self-employed: ② NHI Deep Dive is your most important article. ⑦ The Cost Breakdown gives income-based premium estimates. ④ The Comparison shows how private insurance can fill NHI's gaps. ⑥ The 2027 Rule Change is required reading, because freelancers on NHI are the group most affected.
Student: ② NHI Deep Dive covers the premium reductions you can get. ⑤ Seeing a Doctor walks you through using the system. ④ The Comparison explains how university insurance works alongside NHI.
Spouse visa holder: ④ The Comparison explains whether you can join your spouse's Shakai Hoken as a dependent. ⑨ Having a Baby is essential reading if you're planning a family.
Planning to leave Japan soon: ⑧ Leaving Japan covers every step. Also check ⑥ The 2027 Rule Change so you don't leave unpaid premiums behind that could cause problems if you ever return.
Why This Guide, Why Now
Japan's health insurance system is at a turning point for foreign residents. These are the changes that matter most:
December 2025 to March 2026: All old insurance cards expired on December 1, 2025, and the grace period for expired cards ended on March 31, 2026. You now use a My Number Card registered for insurance or an Eligibility Confirmation Certificate. Since June 14, 2026, you can also choose the Specified Residence Card, which combines your Residence Card and My Number Card.
April 2026: A child and child-rearing support levy was added to every health insurance premium, both Shakai Hoken and NHI.
August 2026: The monthly caps of the High-Cost Medical Expense Benefit rose and a new annual cap was introduced. In August 2027, each income tier except the lowest will be split into three.
June 2026 law: Normal childbirth will become free at the point of care by June 2028 at the latest, with a new cash benefit for every birth.
April 1, 2027: Willful non-payment of taxes or social insurance becomes grounds for revoking permanent residency.
June 2027: NHI and National Pension payment records will be checked during visa renewals and changes. Of the roughly 970,000 foreign NHI enrollees, only about 63% have been paying.
These aren't abstract policy changes. They directly affect your ability to live, work and stay in Japan.
Related Series
This guide is part of kantenna.com's Living & Money Guide for Foreign Residents in Japan.
→ NISA for Foreigners: Complete Guide Series: Everything you need to know about Japan's tax-free investment accounts. Build your financial foundation in Japan alongside your healthcare coverage.
This guide series is for general informational purposes only and does not constitute medical advice. Insurance premiums vary by municipality, income, and household composition. For advice specific to your situation, consult your local municipal office or a qualified professional.
Content is current as of October 2026 and will be updated as regulations change.
How does Japan's health insurance compare to your home country? We'd love to hear your experience. Drop a comment below or join the conversation on our social media channels.