From gross salary to net pay
The calculator combines monthly salary and annual bonus, estimates employee social insurance, applies Japan's salary income deduction, then estimates national income tax and resident tax.
Salary Calculator
Estimate monthly net pay for a regular employee in Tokyo using 2026 public tax and social insurance rates. V1 focuses on Kyokai Kenpo Tokyo branch assumptions.
How it works
The calculator combines monthly salary and annual bonus, estimates employee social insurance, applies Japan's salary income deduction, then estimates national income tax and resident tax.
V1 is scoped to regular employees in Tokyo enrolled in Employees' Health Insurance, Employees' Pension, and employment insurance. Care insurance is added for ages 40 to 64.
Use the result to compare job offers, set rent targets, estimate savings, or decide whether a salary package is enough before relocating to Japan.
FAQ
The estimate starts with annual gross pay, applies the salary income deduction, then subtracts employee social insurance, national income tax, reconstruction income tax, and resident tax when applicable.
Resident tax is usually based on prior-year income and January 1 residence status. Many new arrivals do not pay it in their first year, but it can reduce later-year monthly pay.
No. This V1 is an estimate for Tokyo employees. Payroll systems use standard remuneration classes, exact bonus handling, company rules, dependents, and other deductions that can change the final amount.
Next calculators
The next passive-income path is a cluster of related tools: rent affordability, move-in costs, monthly living costs, and savings planning.