Statistics Canada reported Monday that the annual rate of consumer inflation rose to 3.1 per cent in September, reversing part of the slowdown seen earlier in the year as energy costs spiked.
Energy costs push headline higher
The agency identified a sharp increase in motor fuel as the principal driver of the acceleration. Gasoline prices rose by a dramatic 27.8 per cent year over year in September, even though many provinces moved to the cheaper winter fuel blend. Fuel oil and similar heating fuels were the hardest hit category, jumping 57.8 per cent compared with the same month a year earlier — a rise that particularly affects households in Atlantic Canada where oil heating remains common.
Core inflation and other categories
Excluding gasoline, consumer prices increased by 2.2 per cent year over year in September, indicating underlying price pressures remain more moderate than the headline figure suggests. Shelter costs rose to 1.8 per cent in September from 1.5 per cent in August, with Statistics Canada pointing to higher mortgage insurance premiums and an uptick in home maintenance and repair costs.
Grocery inflation eased further: overall grocery prices were up 1.7 per cent year over year, the smallest annual increase since May 2024. The agency cited a 2.9 per cent decline in fresh vegetable prices and a 2.7 per cent drop in sugar and confectionary items. Beef prices rose more slowly than in August, at 8.7 per cent year over year versus an 11 per cent increase the prior month. Nonetheless, groceries remain substantially more expensive than several years ago: prices are 33 per cent higher than in September 2020.
- Headline inflation: 3.1% (September year over year)
- Excluding gasoline: 2.2%
- Gasoline: +27.8%
- Fuel oil and other fuels: +57.8%
- Grocery index: +1.7% (smallest yearly increase since May 2024)
| Category | Year-over-year change (Sep) |
|---|---|
| Headline CPI | 3.1% |
| Excluding gasoline | 2.2% |
| Gasoline | +27.8% |
| Fuel oil & other fuels | +57.8% |
| Groceries | +1.7% |
Implications for households and policy
The resurgence in headline inflation driven by energy threatens to complicate the Bank of Canada’s stance on interest rates. While core measures remain closer to the central bank’s target range, large swings in fuel costs can materially affect household budgets, especially in regions where heating oil and gasoline account for a greater share of spending.
For consumers, the mixed picture is consequential: lower month-to-month pressure on many food items offers some relief, but elevated energy costs can quickly erode gains at the grocery store or the pumps. The data also highlights the uneven regional impact: Atlantic Canadian households that rely on oil heat are disproportionately exposed to the recent surge in fuel oil prices.
Markets and policymakers will be watching subsequent Statistics Canada releases for signs that energy-driven volatility is transitory or the beginning of a broader re-acceleration. For now, the September report underscores how external events affecting global energy supply and prices can quickly reshape the domestic inflation outlook.
This account is based on the Statistics Canada release published Oct. 19, 2026.
