If you're receiving Canada Pension Plan (CPP) retirement benefits and still working, here's what you need to know about CPP contributions:

Ages 60-65:

• You must continue to pay into the CPP, even if you're receiving retirement benefits
• These contributions increase your CPP retirement pension through the post-retirement benefit

Ages 65-70:

• You can choose to stop contributing to the CPP
• To opt-out, you need to complete the CPT30 form (see instructions below)
• Note that opting out will decrease your post-retirement benefit

How to opt out of CPP contributions (ages 65-70):

1. Complete the CPT30 form
2. If you're employed:
   • Give a copy of the form to your employer
   • Send the original to the CRA
3. If you're self-employed:
   • Send the form to the CRA
   • When filing your tax return, select the month you want to stop contributing in the Canada Pension Plan section for the question "Do you elect (or have you previously elected) to stop paying CPP contributions on your self-employment income? If yes, in what month would you like to (did you) stop making contributions?"

Important notes:

• For employed individuals, the election takes effect from the month you file the CPT30 form
• It cannot be applied retroactively to the tax return you're currently preparing
• Self-employed individuals can specify the month they want to stop contributing

Remember:

• Keep a copy of your CPT30 form for your records
• Consider the impact on your future benefits before opting out

For more information on eligibility and benefit amounts, visit the CRA's pages:

• Who can get CPP while working
• Post-retirement benefit amount

If you're unsure about whether to continue CPP contributions or how it might affect your retirement benefits, consider consulting with a tax expert.