手取りチェッカー

"Net Pay Checker" is a payroll calculation app that supports the latest rates and deductions for fiscal year 2026 (Reiwa 8). It not only calculates net pay from gross pay, but also allows you to work backward from your target net pay to determine the required gross pay, calculate bonus net pay, and even compare net pay between company employees and self-employed individuals.


■ Four Calculation Modes
- Forward Calculation: Calculates net income from gross (monthly) salary
- Backward Calculation: Calculates the required gross income from a desired net income of ¥X
- Bonus: Calculates net bonus income
- Comparison: Compares net income received by a company employee and a self-employed individual with the same annual income

■ Reflects Detailed Conditions
- Health Insurance, Long-Term Care Insurance, Employees' Pension, Employment Insurance, Childcare Support Fund
- Prefectural Insurance Premium Rates for the Japan Health Insurance Association
- Estimated Income Tax (Withholding Tax) and Individual Resident Tax
- Taxable/Non-Taxable Determination of Commuting Allowance
- Number of Spouses and Dependents, Age Categories for Long-Term Care Insurance (40-64 years old)

■ Comparison with Self-Employed Individuals
- National Health Insurance, National Pension
- Special Deduction for Blue Return (¥650,000), Individual Business Tax
- Also displays an estimate of future pension (Old-Age Basic + Employees' Pension)

This tool can be used for checking payslips, simulating net income during job changes and raises, and considering independence and starting a business.

*The calculation results are estimates based on standard rates and deductions. Actual deductions and tax amounts will vary depending on your employer, your local government, and individual circumstances. For accurate amounts, please check your payslip or information from the tax office or local government.