2026 tax rules and premiums from April 2026, checked October 1, 2026. Your inputs never leave this browser.

Your salary

Per month Per year

Monthly salary before tax

Base pay plus allowances. Add bonuses below the result.

Your take-home pay

Per month (months without a bonus)

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How the taxes were worked out

This is an estimate. The final amounts are decided by your employer, the tax office and your city office. Guide, sources and FAQ

Bonuses: none

Bonuses per year, before tax

The total of all bonuses in the year.

Number of bonus payments

Age and health insurance: under 40, Tokyo

I am 40 to 64 (adds long-term care insurance)

Prefecture of your workplace

Kyokai Kenpo (Japan Health Insurance Association) rates differ by prefecture.

Company health insurance societies (kenpo kumiai) set their own rates, which this calculator does not have.

Spouse and children: none

I have a spouse

Spouse’s salary per year

Before tax. 0 if no income.

Children under 16

Aged 16 to 18

Aged 19 to 22

Ages are as of December 31. Children are treated as having no income.

Resident tax this year: included

I had a similar salary in Japan last year I had no salary in Japan last year

Resident tax is charged on last year’s income, so it starts about a year after you start work.

Not covered by this calculator

Non-residents (in Japan under a year with no home here) and tax treaties.
Deductions other than social insurance, spouse and children: life insurance, iDeCo, housing loan, furusato nozei, medical expenses.
Tax-free commuting allowance, a second employer, income other than salary, and yearly salary over ¥20 million.
Health insurance societies, ages 70 and over, and city-specific resident tax rates.

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