Where can I see if I previously claimed a deduction on my wife's self employment earnings?

[urgrt2me]

I am trying to verify that I did not previously claim a course that she had to take for her private practice

[TurboTax_Susan]

If you used TurboTax Do It Yourself (Online), you can check your wife's return from last year by logging in and clicking on "Access Your Filed Tax Returns" at the bottom of the "Great to see you again!" page. Download her return and look for the T2125 to see what expenses she claimed in previous years.