Step 2 — Mortgage Rates Follow
Step 3 — Buyers React
Mortgage rates drive buyer demand
1–3 monthsWhen rates drop, buyers can afford more house for the same monthly payment. When rates rise, the opposite happens — budgets shrink, demand cools, and some buyers are priced out entirely.
Here is the core affordability equation that every buyer faces, whether they know it or not:
Monthly income ÷ Mortgage rate = Maximum purchase price
Your income does not change when the BoC announces a rate cut. But the amount a bank will lend you absolutely does. A family earning $120K/year might qualify for a $480K mortgage at 6%, but $530K at 5%. Same family, same paycheque — $50K more purchasing power from a single percentage point.
Multiply that across thousands of buyers in Edmonton and Calgary, and you get a wave of demand that hits the market all at once. That is what drives bidding wars when rates drop and what causes listings to sit for months when rates spike.