You would use Form T2125. If you're using TurboTax
Online you can access it by clicking on Income>Self-Employment> Self-Employment
Profile in the left side menu. This is also the place that you would put your
expenses or CCA. Remember to only put in your portion of the amounts and only
the amounts related to business use.
If you need more assistance, please contact our
phone support as they will be better able to assist you (*Not available for
TurboTax Free users*). https://turbotax.community.intuit.ca/replies/3152013