For most of the past year, the debate about Canadian interest rates has been about when the next cut would come. That has changed. CBC reported on October 21 that a growing number of economists and traders now expect the Bank of Canada to raise its policy rate, which has been 2.25% since a quarter-point cut in October 2025. The Bank hasn't raised rates since July 2023.[1]

Rather than guess at timing, this piece looks at how a rate increase would actually flow through the debt that funds Ontario rental housing, and which parts of the capital stack would feel it first.

Why expectations shifted

The catalyst is inflation driven by energy. Statistics Canada reported that consumer prices rose 3.1% in September, pushed up by fuel prices. The Bank's own survey released the same day found that businesses expect higher prices.[1] Governor Tiff Macklem has warned that the Bank may need to raise rates if energy prices stay high, citing the continuing conflict in the Middle East.[1]

According to CBC, BMO, RBC Dominion Securities and Desjardins have changed their forecasts from a hold to a hike, and Bloomberg data showed swap markets pricing a high probability of a 25-basis-point increase. Some economists, including at Macquarie, expect a series of increases rather than a single move.[1] The Bloomberg consensus still pointed to a hold when CBC published.[1]

The Bank flagged the risk in early September, saying upside risks to inflation had increased and that it was prepared to adjust policy as needed. It also noted that long-term bond yields had risen globally since July.[2]

Where the policy rate bites

Not all rental debt responds to the policy rate the same way.

Variable-rate construction loans. Most construction debt floats with the prime rate or a similar benchmark, which moves directly with the policy rate. A quarter-point increase raises the interest cost immediately. As an illustration, on a construction facility with $40 million drawn, an extra 0.25% adds about $100,000 a year in interest. That comes out of the interest reserve or the developer's equity, not out of rents, since the building isn't earning income yet.

Mezzanine and bridge debt. Junior and short-term loans are often floating as well, and at higher spreads. For projects already near the limit of their budgets, a rate increase on these layers can matter more than the senior loan.

Insured and fixed-rate permanent mortgages. Long-term, CMHC-insured financing is mostly priced off Government of Canada bond yields, not the overnight rate. The Bank has already pointed out that long-term yields moved up.[2] A hike could push them further, but the link isn't one-for-one.

A simple stress-test framework

Without suggesting any particular course of action, these questions help show how exposed a project or portfolio is:

  1. How much debt floats, and how much is fixed? The floating share takes the hit first.
  2. How much interest reserve is left, compared with time to completion and stabilization? A project with six months of reserve and twelve months to go is more exposed than the reverse.
  3. What happens to debt coverage at renewal? For stabilized buildings with mortgages renewing in the next two years, what does coverage look like if renewal rates are 0.5% or 1% higher than planned?
  4. Are there rate caps or hedges, and when do they expire? Hedges that roll off soon provide less protection than they appear to.
  5. What are the rent assumptions? A rate increase usually comes with slower economic growth. Testing higher rates and flat rents together is more realistic than testing them separately.

The real estate backdrop

Higher rates also affect demand. CBC reported that the Canadian Real Estate Association has cut its 2026 home sales forecast for a third straight quarter, now expecting 444,530 sales, 5.2% fewer than in 2025, citing a more hawkish tone from the Bank.[1] Weak ownership markets can keep would-be buyers renting longer, which supports rental demand. Higher rates can also make condo investors more willing to sell, adding resale and rental supply. Both effects can happen at once.

The takeaway

The question for Ontario rental isn't whether one quarter-point increase is manageable. For most stabilized buildings with fixed-rate debt, it probably is. The exposure sits in floating-rate construction and bridge debt, thin interest reserves and near-term renewals. Those are the places to test first, whatever the Bank decides.

Sources

[1] Bank of Canada increasingly expected to raise interest rates this month, CBC News (Oct. 21, 2026): https://www.cbc.ca/news/business/real-estate-bank-of-canada-9.7389322

[2] Bank of Canada maintains the policy rate at 2¼%, Bank of Canada (Sept. 2, 2026): https://www.bankofcanada.ca/2026/09/fad-press-release-2026-09-02/