Part-Time Pay Calculator (Japan)

Calculate part-time job earnings with night shift premium. Check tax threshold status (1.03M / 1.3M JPY walls).

About Part-Time Pay and Tax Thresholds (Japan)

This calculator estimates part-time job earnings in Japan and checks whether your income exceeds key tax thresholds.

Tax Thresholds

  • 1.03M JPY: Income tax starts applying. You may lose dependent status for a family member.
  • 1.3M JPY: Social insurance enrollment becomes mandatory, significantly increasing deductions.

Night Shift Premium

Work between 10PM and 5AM receives a 25% premium above the standard hourly wage (Japanese labor law).