You would list it as an addition in class 50 at 55% depreciation. In the first year, you will only deduct half of the depreciation per the half-year rule. Unless this is a fairly expensive item, you could write it off in the third year.
You can get more information on Class 50 (55%) from this Canada Revenue Agency (CRA) page: Class 50 (55%)
Thank you for using TurboTax.
TurboTax Expert Assist
Get answers to all your tax questions
Our experts are available on-demand, no appointment needed. Get help all year long with TurboTax Expert Assist.