If you have **both** employment and self-employment income, you can elect to stop contributing to the CPP on any employment income earned outside Quebec by completing [Form CPT30, Election to Stop Contributing to the Canada Pension Plan, or Revocation of a Prior Election](https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/cpt30.html). Give a copy of Form CPT30 to all your employers, and send the original to the Canada Revenue Agency.