The sale still has to be reported on Schedule 3 of your tax return, a requirement in place since 2016, even when no tax is owed on it. Where the tax does apply is a second property: a rental, a cottage or a home you did not designate as your principal residence, and that gain is taxed on 50 percent of the profit at your marginal rate.
The distinction that actually matters is which property you are selling and how it was used, not the sale price itself. An inherited home, a property rented out for part of the ownership period, or a home used partly for business can each fall partly outside the exemption, and the calculation gets specific fast.
This is general information, not tax advice, and any Saskatoon seller with more than one property or an unusual ownership history should confirm the details with an accountant before listing. Get your hand-reviewed valuation from Joel Dyck.