This is how you can enter it in TurboTax Online:

1. In the upper-right corner of your screen, select “Find” (magnifying glass).

2. In the Find window, type in “t4a(p)”, select “T4A(P) – Canada Pension Plan Benefits” from the list, and click “Go”.

4. Click “Enter New T4A(P) for [Your Name]” to add a new T4A(P) slip. 

I have the same question and that answer did not help

Sometimes we are given a different T4A slip name. Please see the image below to tell us exactly which one you have and which box number and name you are looking for, i.e.: Box 20 - Self-employed commissions or Box 20-Box 20 - Taxable CPP Benefits.

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