Every BoC rate move, decoded for Canadian mortgage holders in plain English.
The overnight rate is the interest the Bank of Canada targets for one-day lending between major financial institutions. It is not your mortgage rate — it is two steps removed from it, and confusing the three numbers is the single most common mistake Canadian borrowers make.
Prime sits a fixed spread above the overnight rate. When BoC moves 25 basis points, prime moves 25 basis points within a day or two, and every variable mortgage and HELOC in the country reprices.
What happens to your payment depends on which kind of variable you hold — and most borrowers do not know which one is in their contract.
Rough impact of a single 25 bps cut on a 25-year amortization:
Model your own balance in the mortgage calculator.
The Bank of Canada announces eight fixed rate decisions a year, roughly every six weeks, at 9:45 a.m. Eastern. Four of those come with a full Monetary Policy Report and a press conference, and those are the meetings where the language shifts most.
What actually moves markets on announcement day is rarely the decision itself — it is usually already priced. Watch instead for:
This surprises people every cycle. Fixed mortgage rates follow the 5-year Government of Canada bond yield, and bond yields price in expected future policy, not today's decision. By the time the Bank cuts, the bond market has usually already moved.
So there are three possible outcomes on any announcement day:
Practical consequence: if you want a lower fixed rate, watch the 5-year GoC yield, not the BoC calendar. If you want a lower variable rate, watch the BoC calendar.
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The Bank announces eight times a year, roughly every six weeks, at 9:45 a.m. Eastern. Four of those announcements include a Monetary Policy Report and press conference, and those tend to move markets most.
Not directly. Fixed rates track the 5-year Government of Canada bond yield, which prices in expected policy months ahead. A cut that was already anticipated changes nothing, and a cut smaller than expected can actually push fixed rates up.
About $70 a month on a 25-year amortization, or roughly $840 a year. On a $1,000,000 balance it is closer to $140 a month.
The overnight rate is set by the Bank of Canada for interbank lending. Prime is set by each lender at a fixed spread above it, and prime is what your variable mortgage and HELOC are priced from. When the overnight rate moves 25 basis points, prime follows within days.
On an adjustable-rate mortgage, yes, immediately. On a variable-rate mortgage with a fixed payment, the payment stays the same and the principal-interest split changes instead. On a fixed mortgage nothing changes until renewal.
The trigger rate is the point where your fixed payment no longer covers the interest on a variable-rate mortgage. Reaching it forces a payment increase, a lump sum, or an amortization extension. It only matters in a rising-rate cycle, and your lender must contact you before it bites.
Only if your budget can absorb the opposite outcome. Expected cuts are already partly reflected in the discount off prime, so the real advantages of variable are the cheap three-month-interest break penalty and the ability to convert to fixed mid-term.
Prime is typically adjusted within one to two business days of the announcement, and variable mortgages reprice from the effective date the lender publishes. Fixed rates move on their own bond-driven schedule instead.
Pick a time that works best for you