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Wednesday’s Bank of Canada announcement revealed policymakers may be more hike-prone than markets had assumed.
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Bond traders noticed the hawkish tilt instantly and priced a pre-Christmas hike as nearly a done deal.
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And forward rate data from CanDeal DNA implies four more hikes after that, 125 basis points of tightening in total.
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Needless to say, people eyeing a new mortgage would love to know how much potential hikes could cost them.
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And according to August data from Dominion Lending Centres Group, the nation’s largest mortgage originator and a company I’m affiliated with, over 56 per cent of their prime borrowers picked a variable anyway.
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To size up that risk, picture a Canadian household that has the average:
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- Mortgage balance of $293,270 (source: TransUnion)
- Remaining amortization of 19 years (the approximate industry average)
- Dual-earner full-time wages of $165,000 (source: StatCan weekly earnings)
- Non-mortgage debt load of $28,118 (source: TransUnion)
- Floating-rate discount of prime minus 0.80 per cent (which is 3.65 per cent today)
- Monthly mortgage payment of roughly $1,781
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That payment eats just 13 per cent of this “average” borrower’s gross income.
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Hardly a crisis.
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Even if the Bank of Canada hiked the full 125 basis points the market is pricing in, someone with an adjustable-rate mortgage (ARMs) — the kind where payments rise when the prime rate rises — would see their payment climb to just $1,963.
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This would drain an extra $2,184 from their annual budget, though wages have climbed about 3.50 per cent annually over the last decade — $5,775 on that $165,000.
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So, net-net, the average borrower survives.
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But here are four situations where policy tightening becomes a real problem:
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#1 — If we see several more hikes than expected
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It’s possible that any hiking cycle proves mercifully short.
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The oil shock won’t last for years, with Iran’s economy on the brink of collapse; sanity may return to the White House in 2029 and AI should prove disinflationary in the end.
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Nonetheless, the future is murky, and the average tightening cycle has entailed roughly 11 quarter-point hikes, or 275 basis points (as measured during the inflation-targeting era).
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A 275-point climb drives up that payment 24 per cent, easily outpacing average wage growth.
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And in this author’s view, that’s the minimum a rate floater should brace for in a potential rate hike cycle.
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#2 — If you overbuy
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If our theoretical couple maxes out their buying power, their $165,000 of income and $28,118 in non-mortgage debt support a $757,485 mortgage, including the default insurance premium.
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And note that 52 per cent of buyers paid the maximum they could afford, according to the latest Canada Mortgage and Housing Corporation data.

