Not sure where to put an expense for a rental property we are building in our own home. Expense for building permit and plans for the new build.

Rental income and expenses are claimed on Form T776. Include rent collected from tenants as rental income in the current tax year. Claim tax deductions for any expenses related to your rental property. Common rental property expenses include home insurance, heat, hydro, water, and mortgage insurance. Claim the full amount of expenses if it is for a rental property, but only a percentage if it is for part of your principal residence.