If these are capital expenses, then you can’t claim them as rental expenses on your tax return this year. You can include them in your adjusted cost base (ACB) when you sell or dispose of the property.
If you are claiming Capital Cost Allowance (CCA) on the property, you can enter your capital expenses as an addition to the CCA class of your building.
For more information on claiming Capital Cost Allowance (CCA) on a property, please see this TurboTax article: Dos and Don’ts: CCA for Rental Property Explained
