手取り計算機(2026年税制対応)

"Net Income Calculator" is a simple salary simulation app that instantly shows your net income after deducting income tax, resident tax, and social insurance contributions simply by entering your annual income. It can be used for comparing annual incomes when changing jobs or starting a new job, reviewing household finances, and checking the limits for hometown tax donations.


【Recommended for those who:】
・Want to quickly find out their net income from a given annual income
・Want to check the breakdown of taxes and social insurance contributions deducted from their salary
・Want to know the estimated limit for hometown tax donations
・Want to estimate how spousal deductions, iDeCo, and life insurance premium deductions affect their net income

【Main Features】

■ Net Income Calculation
- Calculates monthly and annual net income in real time simply by moving the annual income slider (adjustable in increments of 100,000 yen)
- Summary display allows you to see your monthly net income and net income rate at a glance
- Detailed screen allows you to check the breakdown of income tax, resident tax, and social insurance contributions (health insurance, long-term care insurance, employee pension insurance, employment insurance)
- Displays hourly wage conversion based on daily working hours and monthly working days
- Visually check the ratio of net income to taxes and social insurance contributions with a pie chart
- Automatically calculates an estimate of the deduction limit for hometown tax donations
- Income tax is calculated including the special reconstruction income tax, and resident tax is calculated at 4% for prefectural tax and 6% for municipal tax

■ Income Deduction Settings
- Enter your spouse's annual income, and the spousal deduction will be automatically reflected, including the gradual reduction due to income limits.
- Set the number of dependents to reflect the dependent deduction.
- Enter the annual contributions for life insurance premiums (new and old systems), long-term care and medical insurance premiums, personal pension insurance premiums, earthquake insurance premiums, and iDeCo, and reflect them in the income deduction.
- You can check the deduction amounts set for income tax and resident tax at any time.

■ Customizing Calculation Conditions
- You can adjust the health insurance premium rate, long-term care insurance premium rate, employee pension insurance premium rate, and employment insurance premium rate to match your payslip (supports company-specific health insurance associations).
- You can change the display range (minimum and maximum) of the annual income slider from the settings tab.
- You can switch the reflection of various income deductions with a single tap.

【Caution】
The tax amount, social insurance premiums, and net income calculated by this app are only estimates. The actual amount will vary depending on your health insurance association, your local government, and the applicable deductions. Please check the official amount on your payslip or at the tax office or municipal office.

[Other] From the "Settings" tab within the app, you can submit feedback and requests (X, Google Forms), check release notes and privacy policy, and share and review the app. We will continue to improve features to enhance usability.