I discovered that the gross income from my T-$ slip did not transfer over to the CPP overpayment calculation page.  Therefore it shows that with no income my CPP contributions were overpaid .This then carried to the refund page showing an over payment of CPP

We suggest you contact our product support team by phone. 

So they can check the issues to escalate into an investigation if needed. 

Thank you for choosing TurboTax. 

Same thing happened to me. 

@Rd651 Please double check that you've entered all the information on your T-slips correctly. 

If you are still not able to resolve this issue, please contact our phone support team for more assistance.