CalculateLocal rules
Calculations reflect guidance from National Tax Agency and responsible bodies.
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Calculators for Japan
10 most popular calculators in Japan
Income Tax & Resident Tax
Income Tax (所得税) & Resident Tax (住民税) Calculator built around Japan rules, rates, and JPY amounts.
View calculator ›Net Salary
Net Salary (手取り) Calculator built around Japan rules, rates, and JPY amounts.
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Mortgage
Mortgage (住宅ローン) Calculator built around Japan rules, rates, and JPY amounts.
View calculator ›Furusato Nozei Limit
Furusato Nozei (Hometown Tax Donation) Limit Calculator built around Japan rules, rates, and JPY amounts.
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NISA & iDeCo Tax-Free Investment
NISA & iDeCo Tax-Free Investment Calculator built around Japan rules, rates, and JPY amounts.
View calculator ›Pension
Pension (年金見込額) Calculator built around Japan rules, rates, and JPY amounts.
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Car Weight Tax & Shaken Inspection Cost
Car Weight Tax & Shaken Inspection Cost Calculator built around Japan rules, rates, and JPY amounts.
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Severance & Retirement Allowance
Severance & Retirement Allowance Calculator built around Japan rules, rates, and JPY amounts.
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Inheritance Tax
Inheritance Tax (相続税) Calculator built around Japan rules, rates, and JPY amounts.
View calculator ›Consumption Tax
Consumption Tax (消費税) Calculator (10% / 8%) built around Japan rules, rates, and JPY amounts.
View calculator ›CALCULATORS FOR EVERY DECISION
20localizedExplore all calculators for Japan
Choose a topic below to find tools built for JPY, local rules, and familiar number formats.
calculators
Tax & Salary
Income tax, deductions and take-home pay
Loans & Mortgages
Home, personal and vehicle financing
Savings & Investment
Interest, retirement and investment returns
Property
Property taxes, fees and affordability
Everyday
Percentages, dates, costs and utilities
Health & Fitness
BMI, calories and physical wellbeing
Work & Career
Pay, leave and employment planning
Family & Life
Family benefits and life planning
Travel & Transport
Fuel, vehicles and travel costs
Built for Japan rules and formats
JPY and local formatting
Results use the ja-JP locale and local number conventions.
Regional accuracy
Regional selectors support tax, property and benefit differences.
Current-year ready
We review thresholds, rates and guidance as changes are published.
Sources & trust
Our calculators use official guidance and transparent assumptions.
- National Tax Agency
- National statistics and monetary authorities
- Regional government portals where applicable
Important
Results are estimates and are not a substitute for professional financial, tax, legal or medical advice.
ⓘ Check official guidance before making a decision.Frequently asked questions
Are these calculators specific to Japan?
Yes. Currency, formatting and explanatory content are tailored to Japan.
Which financial year do the calculators use?
Each calculator identifies its applicable period, update date and assumptions.
How are numbers displayed?
Amounts use JPY and the ja-JP number format.
How often are calculators updated?
We review them annually and whenever an official rule changes.