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Part-time salary calculator · Japan 2026

What you take home with fewer hours. Net pay often falls less than your hours, because income tax is progressive.

¥209,770 net a month
for 30 hours instead of 40 · ¥262,500 gross

You keep 76.4% of your full-time net pay (¥274,459) for 75% of the hours.

See the payslip ↓
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        Part-time pay in Japan 2026: what you keep with fewer hours

        Working fewer hours lowers your gross pay in proportion, but your net pay usually falls less: income tax is progressive, so a smaller salary is taxed at a lower rate. The calculator above shows your part-time net pay.

        Part-time pay from a ¥350,000 full-time salary

        Hours a weekGross a monthNet a monthShare of full-time net
        40¥350,000¥274,459100.0%
        35¥306,250¥243,16388.6%
        32¥280,000¥222,68081.1%
        30¥262,500¥209,77076.4%
        25¥218,750¥175,79364.1%
        20¥175,000¥141,72151.6%

        Full time = 40 hours. Single, aged 35, no children, 14 salaries a year, 2026 rules.

        Frequently asked questions

        How much do I keep on a 4-day week?
        With 32 hours instead of 40 you keep about 81.1% of your net pay for 80% of the hours.

        Is part-time pay taxed differently?
        No, the same rules apply to the lower salary.

        Rules and official sources: see “Rules applied (2026)” in the calculator. Last checked: October 2026. Estimates for information, not financial advice.

        Other questions about pay in Japan: What is my hourly wage? · How much unemployment benefit would I get? · How much notice must my employer give? · When can I retire? · What is my money worth after inflation?

        All questions about pay in Japan →

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