Japan Monthly Payroll Withholding (2019 Approximation)

Estimate monthly withholding tax by applying MOF Category A/B tables and social-insurance-deducted monthly salary.

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Calculation basis and official references

Reviewed on:

Formula basis

Below the table minimum, Category A is zero and Category B is floor(monthly pay × 3.063%). Listed bands return their row value; high bands use floor(anchor tax + excess over the boundary × marginal rate). Monthly tax × 12 is also shown.

Calculation method

This 2019-labeled calculator looks up monthly withholding from salary after social insurance, Category A or B, and Category A dependent count.

Exclusions and checks required

  • It reuses the pre-2025 table rather than a dedicated 2019 table, so some bands do not match the official 2019 schedule.
  • Electronic payroll calculation, more than seven dependents, secondary-salary deductions, and non-taxable allowances are excluded.

Example input:：2019 label, JPY 350,000 monthly pay, Category A with no dependents

monthlyPayAfterInsuranceYen
350000
column
Category A
dependents
0

This is a pre-2025-table approximation, not a dedicated 2019 lookup; verify the result against the official historical table.

Official references

FAQ

Who is this calculator for? Japan Monthly Payroll Withholding (2019 Approximation)

Estimate monthly withholding tax by applying MOF Category A/B tables and social-insurance-deducted monthly salary.

What values should I enter?

Applies to: Japan Payroll Withholding

How should I interpret this estimate?

This 2019-labeled calculator looks up monthly withholding from salary after social insurance, Category A or B, and Category A dependent count.

How to use

  1. Enter your input values and press Calculate.
  2. Review the result and compare it with expected context.
  3. Below the table minimum, Category A is zero and Category B is floor(monthly pay × 3.063%). Listed bands return their row value; high bands use floor(anchor tax + excess over the boundary × marginal rate). Monthly tax × 12 is also shown.

Official references