The Qualifying Rate
The "Stress Test" requires borrowers to prove they can afford payments at a rate significantly higher than their actual contract rate. Currently, this is defined as the higher of your contract rate plus 2%, or the floor rate of 5.25%.
This buffer is designed to protect the Canadian banking system from interest rate shocks. When planning your 3-year acquisition roadmap, always calculate your affordability using the stress test rate rather than the advertised marketing rates.