Resident Tax Calculator

The Resident Tax Calculator estimates annual and monthly Japanese resident tax (juuminzei), which comprises municipal tax and prefectural tax.

Resident tax generally includes an income-based portion and a per-capita portion that depends on local rules. This tool factors in employment income deduction, basic deduction, social insurance premiums, life insurance deduction, spouse deduction, dependent deduction, and disability deduction to estimate taxable income.

Because income tax and resident tax treat some personal deductions differently, an adjustment deduction may apply. This tool automatically includes that adjustment when estimating resident tax based on the information you enter.

The calculator displays the income portion, flat portion, total annual tax, estimated monthly amount, and detailed deduction breakdown. It supports both salaried employees and self-employed individuals. Use it for job transition planning, freelance income projections, pre-filing tax estimates, Furusato Noto (hometown tax) donation limit planning, or household budget forecasting. Note that this is an estimate — actual amounts may differ based on local municipal ordinances and special deductions.