Observed arrival · 2026-10-28
A calculator for the tax bite of dental work
This Japanese-language tool estimates how much income and resident tax may be reduced by claiming dental expenses as a medical-expense deduction.
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- For
- Japanese taxpayers estimating dental medical-expense deductions
- Worth noticing
- For income below ¥2 million, the deductible-expense threshold changes from ¥100,000 to 5% of total income.
Field notes
The form asks for annual medical expenses, reimbursements, income, deductions and tax credits, and allows expense rows to be added. It separates the estimated income-tax refund from the following year's resident-tax reduction, and explains that dental-loan principal is treated differently from interest and fees. The page also links to related guides on implants, orthodontics, installment payments and tax-return paperwork.
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