手取り計算機 is a powerful utility tool developed by Shuji Kuriki that provides a wide range of calculations based on your annual income. This full version app is designed to help users calculate various aspects of their income, including income tax deductions, resident tax deductions, taxable income for both income tax and resident tax, income tax rates, income tax amount, resident tax amount, social insurance premiums, annual take-home pay, monthly take-home pay, hourly wage conversion, maximum deduction amount for hometown tax payment, and a graphical representation of take-home pay, income tax, resident tax, and social insurance premiums.

One of the standout features of this app is its ability to calculate spousal and dependent deductions based on the spouse's income and family composition. It also takes into account deductions for insurance premiums and iDeCo, reflecting the results in the overall income calculation. The app is regularly updated to accommodate changes in tax regulations, ensuring accurate calculations every year.

If you encounter any issues or have suggestions for additional features, you can conveniently submit them through the "Questions and Requests" section within the app.