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Medical Expense Deduction Calculator

Family-total medical expenses above ¥100,000 (or 5% of income, whichever is lower) become a deduction. File via 確定申告 in February-March of the next year.

最終更新 2026-04-30Tax / Foreign residents2分で読めます

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Family-aggregated medical expenses claimed by the highest-earning member yields the largest refund. Submit via final tax return (確定申告) the year after.

Estimated refund

Your medical expense deduction is ¥100,000, refund/saving total ¥30,419.

Income tax refund
¥20,419

Comes back via tax return

Resident tax saving
¥10,000

Reduces next year's resident tax bill

Threshold (¥100k or 5% of income)¥100,000
Net medical expenses¥200,000
Deduction amount¥100,000

※ Eligible: doctor visits, hospital, dental, prescriptions, transportation by public means, certain optical/orthopedic. NOT eligible: gym, supplements, cosmetics. Keep receipts. Special provision: "Self Medication" tax credit available for OTC drugs ≥¥12,000/yr.

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