Year-End Adjustment of Withholding Income Tax

The amount of annual income tax is determined based on your income for the entire year, but there is often a difference between this amount and the total amount of income tax deducted from monthly salaries and bonuses. Additionally, it is common for discrepancies to occur due to changes in dependents, life insurance premium deductions, special deductions for spouses, and other factors. Therefore, at the end of the year, once your annual income is determined, your employer adjusts this difference to calculate the correct annual tax amount. This is called “year-end adjustment.”

All UTokyo Employees are required to fill-out and declare their income each year through an online form. Detailed procedures are announced by email in early November each year.

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便利帳Guide Book - Year-end Adjustment

Last updated : October 09, 2025