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Businesses > Starting a business > Deadlines > Income tax and source deductions - Corporations

Income tax and source deductions

Corporations
The last day of FebruaryDeadline for filing RL-1 slips and the Summary of Source Deductions and Employer Contributions (RLZ-1.S-V) for the previous year

Deadline for mailing or remitting copies 2 and 3 of the RL-1 slips to your employees

Deadline for paying your contributions to the Commission des normes du travail and the Fonds national de formation de la main-d'œuvre, if applicable
The 15th of each monthDeadline for remitting source deductions and employer contributions to the QPP and the health services fund for the previous month (if the payment frequency is monthly)
The last day of each monthDeadline for instalment payments of income tax for the current year
Two months after the end of the corporation's taxation yearDeadline for remitting income tax payable
Six months after the end of the corporation's taxation yearDeadline for filing the Déclaration de revenus des sociétés (CO-17-T)
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