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Current year T4127 Payroll deductions formulas

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https://www.canada.ca/en/revenue-agency/services/forms-publications/payroll/t4127-payroll-deductions-formulas.html

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T4127 Payroll Deductions Formulas

Effective January 1, 2025

  • Payroll Deductions Formulas - 120th Edition - Effective January 1, 2025

Effective July 1, 2025

  • Payroll Deductions Formulas - 121th Edition - Effective July 1, 2025


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Date modified:
2025-06-05

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  • Current year T4127 Payroll deductions formulas
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  • Payroll Deductions Formulas - 120th Edition (Upcoming changes) Effective January 1, 2025
  • Payroll Deductions Formulas - 120th Edition Effective January 1, 2025
  • Payroll Deductions Formulas - 121st Edition Effective July 1, 2025

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