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keisanHigh-precision calculations for everyday life and work

Payroll Calculation Simulation

Author: sampomichExecutions: 18357

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This calculator determines the take-home pay by subtracting social insurance premiums from the total gross pay (monthly salary)
and calculating the withholding income tax.
This differs from the actual payroll calculations performed by your employer.
Please list the commuting allowance (monthly) separately from the total gross pay.
You may enter social insurance premiums based on the standard monthly remuneration reported to the Pension Office or similar agency.
(Example) Employees' Pension Insurance Premium ÷ 91.5 = Standard Monthly Remuneration (thousand yen)
Total Gross Pay
yen(Please list the commuting allowance separately on the next line.)
Commuting Allowance
yen(Monthly fee
/ Taxable Commuting Allowanceyen)
Resident Tax Amount
yen(Monthly amount / current amount deducted, if applicable)
Dependent Deduction Declaration Form
DependentsPeople
Social Insurance Premium Entry
Rounding Rules
 Handling Fractional Amounts Less Than One Yen in Insurance Premiums
Health Insurance Premium Rates
%Kyokai Kenpo (Tokyo)/Includes Long-Term Care Insurance
Child-Rearing Support Payment Rate
%
Employment Insurance Premium Rates%As of R8.4
Employee Pension Insurance Premium Rate
%Nationwide Uniform Rate
Total Gross Pay yen - Deductions (Employee Pension Insurance Premiums) yenHealth Insurance Premiums yen
Child-Rearing Support Grant yenEmployment Insurance Premiums yenTotal Social Insurance Premiums yen
Taxable Amount yenWithholding Income Tax yenResident Tax yen))≒
Estimated Take-Home Pay yenCommuting Allowance yenPaid separately
If you are not covered by Health Insurance, Employees’ Pension Insurance, or Employment Insurance, enter 0%; if a different rate applies,
please replace it with the applicable rate.
The calculation of income tax withheld from monthly salary uses the calculator’s special provision (Reiwa 8 edition).
This calculator does not support commuting allowances paid over multiple months.
For resident tax, please enter the most recent amount.
Results may vary depending on the amount of overtime, revisions to social insurance premiums, the start of resident tax collection, and other factors.
No verification checks have been performed. The accuracy of the calculation results is not guaranteed.

The formula is based on Reiwa 8 laws and regulations. This was created purely out of curiosity,
and I do not plan to update it for the next fiscal year.
Please use this tool with that understanding.

No customer feedback for this calculation yet.