How can i print a copy of my 2021 tax return?

How to this depends on what version of TurboTax you are using.

TurboTax Online:

1. Login to TurboTax Online 2021 here: https://ww1.2021.turbotaxonline.intuit.ca/ 
2. On the "Great to see you again!" page, scroll down to the bottom and click "Open" to the right of "Access your filed tax returns". You will then see a list of all your previously filed tax returns. 
3. Click on the year you want to see links to PDF files or the return, which you can download and print.

TurboTax CD/Download Forms Mode:

1. On the top menu, select File>Print>Print Return.

2. On the page that appears, click on the Save PDF Copy for Your Records button.

TurboTax CD/Download EasyStep Mode:

1. On the side menu, select File, and then select NETFILE or Print.

2. Continue until you get to the “Print For [Your Name] Page” and click on the Save PDF button on the bottom right.