In May of the current year, your employer received a PIER report from the CRA that identified Canada Pension Plan $($CPP$)$ contribution deficiencies for employees in the organization who:

turned $18$ during the year

turned $70$ during the year

had chosen to opt out of paying CPP by submitting a completed CPT$30$ form

To avoid a recurrence, the Finance Manager, Anita Paul, has asked you, the Payroll Manager, to prepare a summary of the CPP reporting requirements on T$4$ information slips. The summary will be used to validate the current payroll setup to ensure that the T$4$s will be completed properly in future. Provide information on the CPP related boxes that must be completed, including how any amounts are calculated, for employees who:

are under $18$ for the entire year

turn $18$ during the year

are over $70$ for the entire year

turn $70$ during the year

submit a completed CPT$30$ form during the year, electing to stop contributing to the Canada Pension Plan

submit a completed CPT$30$ form during the year, revoking their previous election to stop contributing to the Canada Pension Plan.