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High-Cost Medical Refund

高額療養費制度

🏥 Get ¥100,000+ back if you had expensive medical treatment!

Japan limits how much you pay per month. The rest is refunded!

📋 What is 高額療養費制度?

Japan's health insurance has a monthly cap on medical costs. If you pay more than the limit, you can get a refund. Most foreigners don't know about this!

Calculate Your Refund

This is the full cost shown on your receipt, not what you paid

💡 Yamada Hack: Limit Card (限度額適用認定証)

Get this card BEFORE expensive treatment, and you only pay the limit amount upfront - no need to wait for refund!

  • • Apply at: City hall (National Insurance) or HR (Company Insurance)
  • • Show at hospital: They'll only charge you the limit amount
  • • Valid for: 1 year, renewable
  • • Best for: Planned surgery, childbirth, ongoing treatment

❓ FAQ

❓ Do foreigners qualify for this?

✅ Yes! If you have Japanese health insurance (National or Company), you qualify. Even students and part-time workers.

❓ What medical costs are covered?

✅ Hospital stays, surgery, expensive medicine, dialysis, cancer treatment, childbirth (medical parts). NOT covered: cosmetic surgery, dental work, glasses.

❓ How long do I have to apply?

✅ 2 years from the treatment date. But apply early - money takes 2-3 months to arrive.

❓ What if I have multiple hospital visits?

✅ Costs from the same month at different hospitals can be combined (合算) to reach the limit.

❓ Does this apply to childbirth?

✅ Yes for the medical parts. Plus you get the separate 出産育児一時金 (¥500,000 lump sum).

Important Notes

  • • Limits are per person, per month
  • • Income level is based on previous year's tax
  • • Actual limits may vary - check with your insurance
  • • Keep all receipts for 2 years

Frequently Asked Questions

The kogaku ryoyohi system caps the amount you pay out-of-pocket for medical expenses in a single month, with the limit varying based on your income bracket — from approximately ¥35,400 per month for low-income households to around ¥252,600 for high earners. If your total medical costs in a month exceed your personal threshold, the excess is refunded by your health insurer. This health cost refund system applies automatically if you apply within two years of the treatment month.
For National Health Insurance, apply at your city hall's health insurance counter with your receipts (ryoshusho) from medical providers, your insurance card, your bank account details, and your My Number card. For company-based shakai hoken, submit the application to your employer's health insurance society (kenpo kumiai). Medical expense refund claims must be submitted within 2 years of the month in which the treatment occurred.
Eligible expenses for the health cost refund system include hospital and clinic fees, prescription medications dispensed by a pharmacy, some dental procedures, and childbirth-related medical costs. Not eligible are cosmetic surgery, vitamins or supplements not prescribed by a doctor, fees for a private hospital room chosen by the patient, and non-covered examinations. Always keep all medical receipts as you need them to file the refund claim.
Yes, the deadline for applying for the kogaku ryoyohi high-cost medical expense refund is 2 years from the last day of the month in which you received treatment. For the separate medical expense tax deduction (iryo hi koujo) on your income tax return, you have up to 5 years to file an amended return. Missing the 2-year deadline for the health cost refund means losing the money entirely, so track your medical spending monthly.
The concept is identical — both cap your monthly medical spending and refund the excess — but the application process differs. For company shakai hoken, you apply to your employer's health insurance society (kenpo kumiai) or Japan Health Insurance Association (Kyokai Kenpo). For National Health Insurance (kokumin kenko hoken), you apply at your city or ward office. Your insurer should notify you automatically in many cases, but you can also apply proactively with your receipts.

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