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Japanese Salary & Tax Calculators
Working in Japan and wondering where your salary goes? These calculators use the official 2026 tax rules — including the standard monthly remuneration grades most quick calculators skip.
Assumes single, age 30, Tokyo. Bonus, dependents and prefecture can be set in the full calculator.
Calculators in English
日本語のツール (Japanese only, 14 tools)
The full set of calculators — furusato nozei, mortgages, NISA compound interest, overtime pay and more — is available in Japanese.
Why trust these numbers?
Real premium grades, not flat rates
Japanese health and pension premiums are charged on 50 salary grades (標準報酬月額), not a flat percentage. This site implements the full grade table, including the ¥650,000/month pension cap.
2025 tax reform included
The basic deduction rose to ¥580,000–950,000 and the minimum salary deduction to ¥650,000 from tax year 2025. Calculators still using the old ¥480,000 figure will overstate your tax.
Private by design
Everything runs in your browser. Your salary never touches a server, and there is no account to create.