If you haven’t filed your return, you can just go
add them in.
You can make changes after you have filed your tax
return through the CRA or through ReFILE: https://turbotax.community.intuit.ca/replies/2647992
There is a
small fee if you use ReFILE.
If you have TurboTax Live Assist & Review,
here is how to talk to a Tax Expert:
https://turbotax.community.intuit.ca/replies/3456106