Japan Tax Estimate — Transparent Worksheet

Long-form local calculator for salary, RSUs, severance, deductions, and year-end cashflow. This is a planning tool, not tax advice. Numbers/rules need verification before filing.

Status: prototype UI + rough calculation skeleton. Official rule links and exact formulas are being filled in.

1. Person / filing context

2. Salary / regular employment income

Enter actual gross cash salary/bonus paid in the year, plus withholding already taken.

3. RSU vest events

RSUs are normally employment income at vest. JPY value = shares × USD FMV × applicable USD/JPY rate.

4. RSU sale events

Sale gain/loss depends on JPY proceeds minus JPY basis from vest. Matching vest lots still needs proper implementation.

5. Retirement income / severance

6. Deductions / credits

7. Other income / adjustments

Report

Fill the form and calculate. The report will show formulas, assumptions, and source links.