Are you using TurboTax CD/Download or TurboTax Online?

TurboTax Online

If you are trying to access the PDFs of your previous returns, please make sure that you are logged in with the same username & password that you used previously.

If you want to access the returns themselves, you would need to login to the specific year that you want to view. For example, if you want to open your 2022 returns, you need to login to TurboTax Online 2022 here: https://ww1.2022.ca.turbotaxonline.intuit.com/

Please note that returns that you created with TurboTax CD/Download will not show up online as they are only stored on your computer, not on our servers.

I purchased Turbotax Premium at Costco and couldn't access last year's premium, both of which are online versions. However, when you go to the TurboTax website, it wants you to purchase it again. 

@Gordon Chapman 

If you have bought TurboTax Online, please go to turbotax.ca/activate to use your code before you start your returns. You can see this TurboTax FAQ for step-by-step instructions: In TurboTax Online, how do I use a prepayment code? Please note that you can only use the code once in one account. Using the code again will give an error message.

Please make sure that you are logged into the same account that you used last year to be able to see your past year's returns.