Yes, of course, you can. Happy Filing!!
Here is the FREE online version: https://turbotax.intuit.ca/personal-tax-software/free-online.jsp
Here is the FREE downloaded version: https://turbotax.intuit.ca/personal-tax-software/free.jsp
Please take note that the FREE version offers only TurboTax Community support. You do not have the option of tax & support experts guidance via phone if needed.