Formulas to Calculate Source Deductions and Contributions
Information for 2015 will be available soon.
This guide contains the formulas for calculating Québec income tax withholdings, QPP contributions, QPIP premiums, and the employer contribution to the health services fund.
This guide is only available in electronic format.
Choose the version of the document that corresponds to the taxation year at issue. In the case of a form, filing the wrong version may result in processing delays.
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