This answer applies to working beneficiaries who are drawing CPP retirement benefits while paying into the CPP.
Between the ages of 60 and 65 you must pay into the CPP regardless of whether you are drawing CPP retirement benefits.
Between the ages of 65 and 70 you are able to elect out of paying into the CPP. Note that electing out of paying into the CPP will decrease your post-retirement benefit. Follow these instructions to complete the CPT 30 form to elect out of paying into the CPP.
Note: If you are employed (but not self-employed), your election will only be applied from the month you file the CPT30 form; it can’t be applied to the return you are currently preparing.