Previous years of professional affiliation dues, I had no idea I could deduct those?!? is there a way to get that money back?

[TurboTaxTerry · Accepted solution]

Once your tax return has been accepted by CRA it cannot be changed in Turbo Tax. After you receive your Notice of Assessment, choose one of the options at the link below to update CRA with the information from your previously unclaimed Professional Fees on a year by year basis.

http://www.cra-arc.gc.ca/changereturn/