Insights

Canada’s headline inflation rate has hovered around 3% over the past six months largely driven by higher global energy prices, but this national average masks significant regional differences in price pressures.

Eight out of ten provinces had inflation rates above 3% in September, with rates ranging from 2.5% in Ontario to 5.7% in Prince Edward Island—a stark 3.2 percentage point gap.

The uneven impact of the energy price shock explains much of the divergence, though regional differences in housing costs and other factors have also compounded the variation.

These pressures are creating real challenges for households, businesses, and governments—particularly in regions where inflation is running hotter.

Persistent provincial inflation divergences, amplified by shocks

A look back at the data suggests that a regional gap in inflation is not unusual in Canada, and it tends to widen during energy price shocks.

In the face of the recent surge in energy prices, the dispersion has widened.

Energy explains much of the difference, with Atlantic Canada hit hardest

Higher energy prices have pushed up inflation across Canada, but their impact on consumer prices has been considerably greater in Atlantic Canada.

One reason is that energy accounts for a larger share of consumer spending in Atlantic provinces, so price increases have a greater impact on overall inflation. Fuel oil is also more commonly used in the region, making price spikes particularly costly for households and businesses.

Both gasoline and fuel oil prices have also climbed faster in Atlantic Canada than elsewhere, contributing to comparatively higher energy inflation.

Other regional factors are also at play

Importantly, energy isn’t responsible for all of the regional divergence in price pressures.

Much of it has to do with varying shelter costs across regions.

In Ontario, a softer housing market has helped contain rents and other housing costs, but stronger conditions in Atlantic Canada, Quebec, and the Prairies have kept pressure on both, sustaining pressure on headline inflation. Notably, year-over-year rent price growth averaged around 2% in Ontario over the past three months but exceeded 6% in every Atlantic province.

In Alberta, rising claims costs and other industry pressures have also contributed to a spike in passenger vehicle insurance premiums which are up roughly 23% year-over-year as of September, adding 0.77ppts to headline inflation – nearly as much as what gasoline added (0.84 ppts). Premiums have surged 58% since end-2022, more than double the national average (26%).

Steeper inflation poses growing regional risks

Persistently elevated inflation is creating real challenges for households, businesses, and governments—particularly in regions where inflation is running hotter.

For households in Atlantic Canada, elevated energy prices are eating into household budgets, especially given that the cost of living is rising faster than wages (like in many other provinces). Consumer spending has held up so far, but over time it could force households to draw down savings or cut back on discretionary purchases, weighing on spending momentum.

Businesses face a similar bind. Firms in Atlantic provinces expect greater input price pressures than other regions. Higher operating costs squeeze profitability, particularly if they are unable to pass those increases to consumers. But even passing on higher costs risks weakening demand and market share. If sustained, tighter margins could leave less room to invest, adding to an already weak business investment outlook.

Higher costs also add strain to government finances, where we’ve already seen recent upward revisions to deficits. These pressures could increase government operating and investment expenses, while also boosting spending on indexed programs and benefits, limiting room for other priorities. For example, Budget 2026 announced another top-up to the Groceries and Essentials Benefit, reflecting continued fiscal strain.

Monetary policy response could add to existing regional challenges

Inflation divergence across the country, coupled with regional growth differences, complicate the Bank of Canada’s monetary policy response.

While higher rates may help contain inflation in regions where price pressures have been more persistent, they could also compound economic challenges elsewhere where inflation is less problematic, for example in Ontario and B.C.

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About the author:

Salim Zanzana is an economist at RBC. He focuses on emerging macroeconomic issues, ranging from trends in the labour market to shifts in the longer-term structural growth of Canada and other global economies.

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