QuickBooks Online (QBO) Core Payroll doesn't automatically stop deducting CPP contributions when an employee turns 65, Balogh. I’d be glad to share some details about this.
Employees aged between 18 and 65 are required to contribute to the Canada Pension Plan (CPP) or Quebec Pension Plan (QPP). However, employees who are between the ages of 65 and 69 have the option to opt out of these contributions given that they submit Form CPT30.
Here's how to opt out:
- Go to Payroll, then select Employees.
- Click the employee.

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Scroll down to the Deductions and contributions and hit Edit.

- Select the remove icon and hit Done.
To explore potential reasons why CPP are not being calculated on your employees' paycheques, you may find this link helpful: Troubleshoot CPP or EI paycheque deduction errors.
Moreover, I've attached this article for future reference in case you need to take a closer look at your business finances, especially with payroll: Run payroll reports.
Our team is dedicated to ensures you stay compliant while managing employee payroll effectively. If you have other questions about payroll, just drop a comment below. I’m here to clear up any confusion and help you with any issues.