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Medical Expense Deduction Calculator Japan
Japan's medical expense deduction and the self-medication option.
Medical costs and pay
Tax back from the medical deduction
¥30,210
Deduction ¥200,000 · tax rate 5%
| Minus ¥100k or 5% of income | ¥100,000 |
| Deduction | ¥200,000 |
| Income tax back | ¥10,210 |
| Lower resident tax next year | ¥20,000 |
| Total | ¥30,210 |
Claim in a tax return (not the year-end adjustment); up to 5 years back.
Tax rate for a single person on salary only. Not tax or labour advice. 🔒 Everything stays on your device.
✅ Rules last checked:
📚 Official sources: 国税庁：医療費控除 · 国税庁：セルフメディケーション税制
We build every tool from the official rules and re-check them when they change. Always confirm with the official source before you rely on a result.
🛠️ Spotted a mistake or an out-of-date rule? Tell us
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Questions people ask
QMust costs exceed ¥100,000?
AIf income is under ¥2m, the threshold is 5% of income.
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