Canada Pension Plan (CPP) and Employment Insurance (EI) deductions have yearly maximum contribution amounts. Once these limits are reached during the calendar year, the deductions stop for the rest of the calendar year.

Contributions to CPP and EI will commence again in January of each year which will reduce net pay. CPP and EI deduction rates are set nationally by the Canada Revenue Agency (for CPP) and the Canada Employment Insurance Commission (for EI).