Okane Keisan
Free calculators for money in Japan, in English: take-home pay, bonus and retirement-pay tax, using the official 2026 tax and social insurance rules. Japanese edition: お金計算.
Calculators
- Japan Take-Home Pay CalculatorEstimate annual and monthly take-home pay from a gross salary in Japan, after income tax, resident tax and social insurance.
- Japan Bonus Take-Home CalculatorNet bonus after social insurance and withholding income tax, using the National Tax Agency's bonus rate table.
- Japan Retirement Pay Tax CalculatorTax and take-home amount on a lump-sum retirement payment, from your pay and years of service.
More, in Japanese
The site also has calculators for income tax, resident tax, mortgage repayment and prepayment, and variable vs. fixed mortgage rates, plus written guides. Those are currently available only in Japanese.
日本語版を見る (Japanese edition)
Results are estimates for general information. They are not tax, legal, or financial advice; for your own situation, ask a tax accountant (zeirishi) or your employer's payroll department.