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U.S. inflation re-accelerates to 3.7% as gasoline jumps

01What happened
The U.S. Bureau of Labor Statistics reported on 14 October that the Consumer Price Index rose 0.6% in September and 3.7% over 12 months, up from 3.4% in August. Gasoline rose 9.1% in the month and 34.2% over the year, and accounted for more than half of the monthly increase. Core CPI, which strips out food and energy, rose 0.3% in the month and 2.6% over the year, up from 2.4%. Food was flat on the month and shelter rose 0.4%.
The print lands four weeks after the Federal Reserve raised its policy rate by 25 basis points to a 3.75% to 4.00% range on 16 September, its first increase since 2023, with a statement that inflation remains elevated. The next Fed decision is on 28 October, the same day as the Bank of Canada’s.
02Our view
Fixed mortgage rates in Canada are more likely to hold or drift higher into year-end than to fall. September’s U.S. inflation report overstates the underlying problem, but it closes the door on near-term rate relief on either side of the border.
Why we think so. The jump in the headline rate from 3.4% to 3.7% is mostly a fuel story. Gasoline rose 9.1% in the month and 34.2% over the year, and on its own accounted for more than half of the 0.6% monthly increase. Strip out food and energy and core CPI rose 0.3% in the month and 2.6% over the year, up from 2.4%: firmer, but only modestly above target. That matters for central banks later, less for Canadian borrowing costs now. The Government of Canada 5-year bond yieldBond yield The annual return an investor gets for lending to a government or company through a bond. Yields rise when bond prices fall. Fixed mortgage rates are priced from the 5-year Government of Canada yield., which sets fixed mortgage pricing, closed at 3.54% on 9 October and moves with U.S. yields day to day. A hot U.S. print keeps U.S. yields high, and that pressure reaches Canadian lenders’ funding costs within hours, long before the Bank of Canada meets. The Federal Reserve, which raised its range by 25 basis points on 16 September, has no reason to back away.
What the market is pricing. Forecasters expected 3.7% on the headline and 2.5% on core. The headline landed exactly on consensus; core came in a tenth higher. Core is the part traders will dwell on, because it shows whether a fuel shock is spreading. We agree with the market that relief is not close, but we put more weight on the energy share than on the core surprise. If gasoline stabilises, the headline can ease quickly. The realistic risk for borrowers is a long plateau, with yields refusing to fall because neither measure is coming down convincingly.
What it means. For a Canadian with a fixed-rate renewal ahead, the working assumption should be that today’s rates are closer to a floor than a ceiling for the rest of the year. A rate hold from the lender, which usually costs nothing, protects against further increases between now and the renewal date. A variable rate follows the Bank of Canada’s policy rate through prime, and no cut is in view. Stress-testing the household budget at 1% above the current mortgage rate shows whether there is room before a decision is forced. Savers, on the other side, still find GIC rates attractive.
What would change our mind. A Canadian September CPI on 19 October showing inflation clearly easing, with the core measures holding near 2%, combined with the 5-year yield settling well below its 3.54% close of 9 October, would tell us fixed rates have room to fall. In the other direction, a Canadian print of 3.3% or higher with CPI-trim and CPI-median above 2.5% would make a Bank of Canada hike in October the base case, and fixed rates would rise faster than we expect.
What to watch. The Federal Reserve’s Beige Book today; Governor Macklem’s fireside chat at the Institute of International Finance today and his IMF panel on 16 October, for any hint of how the Bank reads the energy shock; Canada’s September CPI on 19 October; and the Bank of Canada and Federal Reserve decisions, both on 28 October.
03Why it matters to you
If you are renewing or buying, hotter U.S. inflation keeps pressure on Canadian fixed rates. Knowing when to lock a rate can matter as much as which lender you choose.
Sources U.S. Bureau of Labor Statistics, Consumer Price Index, September 2026; U.S. Federal Reserve, Federal Reserve issues FOMC statement, 16 September 2026; Bank of Canada, Selected bond yields



