How to Read a Japanese Payslip: the 7 Deductions

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This is a translation of the Japanese original. The Japanese version is authoritative; figures follow Japanese tax law.

The "deductions" column of a Japanese payslip lists seven items: health insurance premium, long-term care insurance premium, employees' pension premium, employment insurance premium, income tax, resident tax, and the child and childcare support levy added in May 2026. On a monthly salary of 300,000 yen, social insurance premiums alone come to 44,120 yen a month (Tokyo, under 40), plus 6,320 yen of income tax and about 15,400 yen of resident tax, leaving take-home pay of about 244,000 yen. This article puts on one page how each item is calculated, why take-home pay changes in June and October, and what happens in the month you turn 40, using the 2026 figures from the Japan Health Insurance Association, the Japan Pension Service, the Ministry of Health, Labour and Welfare and the National Tax Agency. A payslip is an invoice for tax and social insurance. Once you can read it, you can see what happens at the year-end tax adjustment, when you change jobs, and when you get a raise.

The short answer: what a 300,000 yen monthly payslip looks like (Tokyo, FY2026, under 40, no dependents)

ColumnItemAmountHow it is worked out
PaymentsBase pay + allowances300,000 yenStandard monthly remuneration is 300,000 yen (grade 19)
Commuting allowance10,000 yenTax-free (up to 150,000 yen a month). Still counted for social insurance premiums
Gross pay310,000 yen
DeductionsHealth insurance premium14,775 yen300,000 yen ח 9.85% ÷ 2
Long-term care insurance premium0 yenAges 40 to 64 only (300,000 yen ח 1.62% ÷ 2 = 2,430 yen)
Child and childcare support levy345 yen300,000 yen ח 0.23% ÷ 2 (from the May 2026 payslip onwards)
Employees' pension premium27,450 yen300,000 yen ח 18.3% ÷ 2
Employment insurance premium1,550 yenGross pay of 310,000 yen ח 0.5% (the commuting allowance is included)
Income tax6,320 yenThe "taxable amount 255,930 yen" line of the withholding tax table (Column A, no dependents)
Resident taxAbout 15,400 yenThe annual amount fixed on last year's income, divided by 12 (June to next May)
Total deductionsAbout 65,800 yen
NetTake-home payAbout 244,200 yenAbout 79% of gross pay

Note: health insurance uses the FY2026 rates of the Tokyo branch of the Japan Health Insurance Association, employment insurance the employee's share for general businesses, income tax the Reiwa 8 (2026) withholding tax table (Column A), and resident tax a guide figure for a single person on 4.2 million yen a year. Companies with their own health insurance society have different rates.

Three things are worth remembering here: the four social insurance premiums are a rate applied to a grade called the standard monthly remuneration, so they do not change straight away when you work more overtime; income tax is a monthly advance payment settled at the year-end tax adjustment; and resident tax alone is fixed on last year's income.

Inside the seven deductions: who takes what, on what, and how it is calculated

ItemEmployee's rate (FY2026)What it is applied toWhat it pays for, and notes
Health insurance premium4.925% (Tokyo, Japan Health Insurance Association)Standard monthly remuneration70% coverage of medical costs, injury and sickness allowance, maternity allowance. The employer pays the same amount. Rates range from 9.21% (Niigata) to 10.55% (Saga) by prefecture[Japan Health Insurance Association]
Long-term care insurance premium0.81% (the same nationwide)Standard monthly remunerationFrom the month containing the day before your 40th birthday until age 64. From 65 it switches to being withheld from your pension
Child and childcare support levy0.115% (the same nationwide)Standard monthly remunerationFrom the April 2026 premium (withheld in May). It funds the expansion of the child allowance and similar measures. About 384 yen a month on an annual income of 4 million yen, rising in stages through FY2028[Children and Families Agency]
Employees' pension premium9.15%Standard monthly remuneration (capped at 650,000 yen)Your future old-age, disability and survivors' employees' pension. The employer pays the same amount[Japan Pension Service]
Employment insurance premium0.5% (general businesses)Gross pay (including the commuting allowance; the actual amount each month)Unemployment benefits, childcare leave benefits, family care leave benefits and so on. The employer pays 0.85%. Cut by 0.05 points from April 2026[MHLW]
Income taxAs per the tax tableGross pay −ˆ’ the tax-free commuting allowance −ˆ’ social insurance premiumsColumn A if you have filed the dependent deduction declaration, Column B (higher) if you have not. The full year is settled at the December year-end tax adjustment
Resident taxOne twelfth of the annual amountYour income from January to December of last yearThe same amount from June to next May (June alone is higher because of rounding). Nothing is withheld in your first year at work

Workers' accident compensation insurance does not appear on your payslip, because the employer pays all of it. On top of matching the four social insurance premiums above, the employer pays 0.85% for employment insurance, a 0.36% child and childcare contribution, and workers' accident compensation insurance, so for someone on 300,000 yen a month the employer's share is about 49,000 yen a month. Together with the employee's share, social insurance comes to more than 90,000 yen a month. There is a table by income level in how much social insurance costs at each income level.

A calendar of the months when the withholding changes: June, October, April and turning 40

WhenWhat changesEffect on take-home pay
JanuaryRevisions to the withholding tax table take effect (in January 2027 the higher basic deduction means less is withheld)Up or down depending on the year
April (the March premium)Health insurance and long-term care insurance rates are revised (for the Japan Health Insurance Association, from the March premium withheld in April). Employment insurance rates also change from AprilIn 2026 health insurance went down and long-term care went up
MayCollection of the child and childcare support levy starts (2026)A few hundred yen less
JuneResident tax switches to the new year's amount. It goes up if your income rose last year. June is higher than the other months because of the roundingLess for anyone who got a raise last year
October (the September premium)The new standard monthly remuneration set by the annual determination (the average of your April to June pay) takes effectLess for anyone with a lot of overtime in April to June
DecemberThe year-end tax adjustment settles up. Most people get income tax backMore (a refund)
The month you turn 40 (the month containing the day before)Collection of the long-term care insurance premium starts (2,430 yen on 300,000 yen a month)Less
The fourth month after a pay changeAn interim revision applies when fixed pay changes and moves you two grades or moreA raise means less (higher premiums)

If it feels as though your take-home pay has fallen, start by checking the month against this table. In June it is almost always resident tax, and in October the social insurance grade. How resident tax is fixed is covered in how resident tax works and how it is calculated, and the link between April to June overtime and your grade in overtime in April to June raises your social insurance premiums for a year.

Five things worth checking on your payslip

  1. Make sure income tax is not being withheld under Column B. Without the dependent deduction declaration, about 20,000 yen or more is taken on a monthly salary of 300,000 yen. Column B is normal at a second job you hold alongside your main one, but Column B at your main job means the declaration was never filed.
  2. Work your grade back out of the health insurance premium. The health insurance premium divided by 4.925% (Tokyo) is your standard monthly remuneration. 14,775 yen gives 300,000 yen. If it is far from your actual monthly pay, that is the effect of April to June overtime or an interim revision (how to look up your standard monthly remuneration).
  3. Check that the commuting allowance is not being taxed. Trains and buses are tax-free up to 150,000 yen a month, and a private car up to the limit for the distance. From April 2026 the limits widened for one-way distances of 65 kilometres or more, and a 5,000 yen allowance for parking fees was added (the tax-free limit for commuting allowances).
  4. Check the resident tax figure against last year's withholding tax statement. See whether the annual amount on the resident tax notice delivered through your employer in June matches the monthly amount on your payslip times 12. If you made furusato nozei donations, check that they are reflected in the "tax credits" box of the notice.
  5. Look for the year-end tax adjustment refund on your December (or January) payslip. It appears as a plus on a line such as "year-end adjustment over/under payment" or "year-end adjustment refund". In 2026 the higher basic deduction means bigger refunds than usual (the 1.04 million yen basic deduction runs through the 2027 tax year).

A bonus payslip works a little differently from a monthly one: no resident tax is withheld, and social insurance premiums are a rate applied to the bonus rounded down to the nearest 1,000 yen. That is sorted out in how much of a bonus you actually take home. For the annual totals, see how to read your withholding tax statement.

Frequently asked questions

There is no "child and childcare support levy" line on my payslip.

Legally it is a separate rate from the health insurance premium (0.23%, of which the employee pays 0.115%), but it is collected together with medical insurance premiums, so some payroll systems add it to the health insurance premium and show a single line. If your health insurance premium went up by a few hundred yen from May 2026, that is the levy.

Are health insurance and employees' pension premiums really split fifty-fifty with the employer?

Yes. The premium tables of the Japan Health Insurance Association show both the "full amount" and the "half share" for every grade, and the employee pays the half share. Fractions are rounded down at 50 sen or less and up above 50 sen, so your payslip can be 1 yen away from the table.

Summary

  • The deductions column on a pay slip lists seven items: health insurance, long-term care insurance, employees' pension insurance, employment insurance, income tax, resident tax, and the child and childcare support levy.
  • For a monthly salary of ¥300,000 (Tokyo, under age 40), total deductions are about ¥65,800, leaving take-home pay of about ¥244,200.
  • Social insurance premiums are calculated by applying a rate to the standard monthly remuneration. Income tax is a provisional monthly withholding reconciled at year-end adjustment, while resident tax is determined by the previous year's income.
  • Payroll deductions change in June (resident tax), October (social insurance grade), and the month a person turns 40 (long-term care insurance premium begins).
  • If income tax on a main job is withheld using the "Column B" (otsu-ran) rate, it usually means the dependent deduction declaration form was not submitted.

References (sources)

This article is based on the materials below. Rates change every year, so check them against the year on your payslip.

Note: this article is general information. Rates at health insurance societies and mutual aid associations, and resident tax amounts, differ case by case.