Can I add T4A(P) amount, already filed, how do I EDIT T4A(P) ?

[dariak]

There are three ways to make amendments to your tax return:

1. through CRA My Account,
2. ReFile using TurboTax,
3. or by mail. 

Before making any changes to your tax return, please wait until you receive your Notice of Assessment. 

How Can I Amend My Tax Return?

I have filed my tax return. Can I still make changes? 

Thank you for choosing TurboTax.