- Health insurance is mandatory for all residents and genuinely good, you pay 30% of most medical costs, the system pays 70%, and any clinic accepts it.
- Employees get Shakai Hoken (employer pays ~half, auto-deducted); the self-employed enrol in National Health Insurance at the ward office and pay it all.
- The high-cost ceiling (高額療養費) caps your out-of-pocket at ~¥80–90k/month for an average earner, no matter how large the bill, apply for a limit certificate in advance.
- On Shakai Hoken, a non-working spouse and children are covered free (below income threshold).
- Budget for year-two residence tax (~10%), it's billed on the prior year's income, so it appears in your second year.
It's mandatory, and genuinely good
Enrolment in Japan's health system is compulsory for all residents, including foreigners on a work visa. The upside is real: it's excellent and cheap at the point of use. You pay 30% of most medical costs, the system pays 70%, and a monthly ceiling protects you from catastrophic bills. There's no in-network/out-of-network game, any clinic or hospital accepts it.
The two systems
| Shakai Hoken (社会保険) | National Health Insurance (国民健康保険) | |
|---|---|---|
| Who | Company employees (most readers) | Self-employed, freelancers, between jobs |
| Enrol via | Employer (automatic) | Ward office (you enrol) |
| Premium split | ~50% paid by employer | You pay all of it |
| Bundles pension? | Yes, with Employees' Pension | No, National Pension is separate |
| Dependents | Covered free if under income threshold | Each person pays |
What it costs
For employees, health insurance + pension + employment insurance together typically run ~14–16% of gross salary as your half, with the employer matching much of it. Health insurance alone is roughly 5% of "standard monthly remuneration," split with the employer. NHI premiums for the self-employed are income-based, set by municipality, and feel steeper because there's no employer contribution.
The year-two residence-tax surprise
What's covered (the 70/30 rule)
You pay 30% of covered care; insurance covers 70% (the elderly and young children pay even less). Covered: doctor visits, hospitalisation, surgery, most prescriptions, dental, mental-health treatment, and maternity care via subsidies. A GP visit often costs you ¥1,000–3,000 out of pocket; a specialist consultation a bit more.
What's not covered
- Purely cosmetic procedures.
- Some advanced/elective or unapproved treatments.
- Normal pregnancy, not classed as illness, so it's handled by subsidies and a lump-sum payment rather than 70/30 (see below).
- Routine health checks beyond the subsidised ones, and some vaccinations.
The high-cost medical ceiling
The High-Cost Medical Expense system (高額療養費, kōgaku ryōyōhi) caps your out-of-pocket spending per calendar month. For an average earner the monthly ceiling is roughly ¥80,000–¥90,000 regardless of the bill's true size, so a major surgery or hospitalisation that "costs" millions of yen still caps your share around that level. Apply in advance for a limit-applicable certificate (限度額適用認定証) and the hospital bills you only up to the ceiling, instead of you paying in full and claiming back.
Using it, at the clinic
- Bring your health insurance card (or My Number Card if linked).
- Pay 30% at the desk on your way out.
- No referral needed for most clinics; large hospitals add a fee (¥7,000+) if you arrive without a referral, to discourage using them as walk-in GPs.
- Pharmacies fill prescriptions separately, also at 30%, keep your medicine notebook (お薬手帳, okusuri techō) for interaction checks.
Finding English-speaking doctors
Use the JNTO multilingual medical directory and your prefecture's medical information service (Tokyo runs Himawari) to find clinics that handle English. In big cities, dedicated international clinics exist (e.g. around central Tokyo and Yokohama), pricier but fully English. Many ordinary clinics manage basic English, and translation apps cover the rest. Keep a shortlist for your ward saved before you need it.
Emergencies & after-hours
- 119, ambulance and fire (free ambulance; you pay for treatment via the 30%).
- #7119 (where available), emergency medical advice line if you're unsure whether to go to hospital.
- #8000, after-hours paediatric advice.
- Carry your insurance card; ERs still bill through the normal system.
Covering family
On Shakai Hoken, a non-working spouse and children can be enrolled as dependents at no extra premium if their income is below the threshold, a significant benefit versus NHI, where each person is charged. Register dependents through your employer and at the ward office.
Pregnancy & childbirth support
Childbirth is well supported even though normal delivery isn't billed through 70/30: there's a lump-sum childbirth allowance (出産育児一時金) of about ¥500,000 per child, plus prefectural prenatal check-up vouchers. Register your pregnancy at the ward office to receive a Mother and Child Handbook (母子手帳, boshi techō), often available in English/bilingual versions, which tracks checkups and vaccinations. Pediatric care for young children is frequently free or near-free via municipal child medical subsidies (age cutoff varies by municipality).
Frequently asked questions
Is health insurance mandatory in Japan for foreigners?
Yes, enrolment is compulsory for all residents, including foreigners on a work visa. If you're a full-time employee, your employer automatically enrols you in Shakai Hoken (social insurance) and deducts the premium from your paycheck. If you're self-employed or between jobs, you enrol in National Health Insurance (NHI) at the ward office. There's no opting out.
How much does healthcare cost in Japan with insurance?
You pay 30% of covered medical costs; insurance covers 70%. A GP visit typically costs you ¥1,000–3,000 out of pocket, a specialist a bit more, prescriptions also at 30%. Critically, the high-cost medical ceiling caps your monthly out-of-pocket at roughly ¥80,000–90,000 for an average earner, so even a major surgery or hospitalisation that 'costs' millions of yen still caps your share around that level.
What's the difference between Shakai Hoken and National Health Insurance?
Shakai Hoken (社会保険) is for company employees, your employer pays about half the premium, it's auto-deducted, and it bundles pension and covers dependents for free. National Health Insurance (国民健康保険) is for the self-employed and people between jobs, you enrol at the ward office and pay the full income-based premium yourself, with pension handled separately. Most readers are on Shakai Hoken.
Can I find English-speaking doctors in Japan?
Yes. Use the JNTO multilingual medical directory and your prefecture's medical info service (Tokyo runs Himawari) to find clinics that handle English. Big cities have dedicated international clinics (pricier but fully English), and many ordinary clinics manage basic English with translation apps filling gaps. Save a shortlist for your ward before you need it. Emergency numbers: 119 (ambulance), #7119 (medical advice), #8000 (after-hours paediatric).
Does Japanese health insurance cover my family?
On employer Shakai Hoken, your non-working spouse and children enrol as dependents at no additional premium (if their income is below the threshold), a real saving versus NHI, where each person is charged. Childbirth is also well supported: a lump-sum allowance of about ¥500,000 per child, plus prenatal vouchers and often free/cheap paediatric care via municipal subsidies.