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U.S. inflation just came in hot. The Bank of Canada is watching.

September CPI hit 3.7% — with gasoline up 9.1% in a single month. What it means for the Oct. 28 rate decision and your mortgage.

Published: October 14, 2026 · Updated: October 14, 2026 · 1 min read

U.S. inflation just came in hot. The Bank of Canada is watching.
U.S. inflation hit 3.7% in September — with gasoline up 9.1% in a single month. Illustration generated with AI for Serious Pick

U.S. inflation came in hotter than expected in September. The consumer price index rose 0.6 per cent in the month on a seasonally adjusted basis, the Bureau of Labor Statistics reported Wednesday, pushing the annual rate to 3.7 per cent from 3.4 per cent in August — above the roughly 3.6 per cent economists had expected, according to Dow Jones surveys.

Gasoline did the damage: up 9.1 per cent in September alone, accounting for more than half of the monthly all-items increase, the BLS said. The energy index jumped 5.2 per cent on the month and is up 20.4 per cent from a year ago. Shelter rose 0.4 per cent. Food was unchanged overall — food away from home up 0.2 per cent, food at home down 0.1 per cent. Core inflation, excluding food and energy, held at 0.3 per cent monthly and ticked up to 2.6 per cent annually.

The Canadian angle: this lands two weeks before the Bank of Canada's Oct. 28 decision. Hot U.S. inflation complicates the picture for Macklem — a Fed forced to stay hawkish keeps the Canada-U.S. rate gap wide, which is one reason the loonie sits near 70 cents. And the gasoline surge is the same energy shock behind our diesel story: $2.64-a-litre diesel and now 9.1-per-cent monthly gasoline jumps on both sides of the border. The Fed meets in two weeks as well, with markets now pricing higher odds of another hike.

Politics intruded quickly. Rep. Brendan Boyle, the top Democrat on the House Budget Committee, blamed the print on Trump's "war in Iran and reckless tariff taxes" — a partisan framing, not a neutral assessment. The producer price index lands Thursday for the next data point.

What matters

What happened

U.S. September CPI rose 0.6% on the month and 3.7% year over year (BLS, Oct. 14) — beating the roughly 3.6% consensus.

Why it matters

Hot U.S. inflation pressures the Fed toward more hikes — widening the Canada-U.S. rate gap and squeezing the loonie two weeks before the Bank of Canada's Oct. 28 decision.

What we know

Gasoline +9.1% in September (over half the monthly rise); energy +20.4% year over year; core inflation 2.6% annually; food flat.

What we don’t

Whether energy keeps driving the prints; how the Fed and the Bank of Canada each respond.

What’s next

U.S. producer prices Thursday; the Fed meets in two weeks; the Bank of Canada decides Oct. 28.

Sources

Interest ratesInflationBank of CanadamoneyCPI

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