Toronto drivers are heading into the Labour Day weekend with another reminder of how quickly fuel costs can change. The average GTA benchmark reached 183.9 cents a litre on Saturday, September 5, after rising one cent overnight, and En-Pro is forecasting another three-cent increase at 12:01 a.m. Sunday. If that forecast holds, the benchmark will climb to 186.9 cents a litre.
There is some uncertainty around the exact Sunday number. Canadians for Affordable Energy is forecasting 187.9 cents, one cent higher than En-Pro’s estimate. What is clearer is the direction: gasoline remains under upward pressure as crude prices rise, global oil-shipping disruptions persist and Toronto enters another volatile weekend for fuel markets.
Sunday’s Increase Would Put Toronto Back Near $1.87 a Litre
Saturday’s 183.9-cent GTA benchmark represents a one-cent increase from Friday’s 182.9 cents. En-Pro’s latest estimate provided to CityNews calls for regular gasoline to rise another three cents at midnight, taking the average price at many Toronto and GTA stations to 186.9 cents a litre on Sunday. For someone watching the price board while driving home from work or heading out for the long weekend, that makes the change unusually visible within a short period.
Not every forecasting service has landed on exactly the same number. Canadians for Affordable Energy, whose predictions are associated with longtime energy analyst Dan McTeague, currently projects 187.9 cents for Toronto on Sunday, a four-cent increase from Saturday. A one-cent disagreement may seem minor, but it illustrates why gasoline forecasts should be treated as moving estimates rather than guaranteed prices. CityNews itself notes that current pricing has been sporadic enough that its daily forecast can be revised during the day.
The Bigger Story Is How Violent Toronto’s Price Swings Have Become
The latest increase did not emerge from a quiet market. CityNews data show GTA gasoline at 182.9 cents on September 1, 181.9 on September 2, 184.9 on September 3, 182.9 on September 4 and 183.9 on September 5. That is a sequence of increases and decreases packed into only a few days, making it difficult for motorists to assume that yesterday’s price will survive until tomorrow.
The wider 2026 record shows the same instability. Toronto-area prices ranged from 162.9 to 182.9 cents during August, a 20-cent spread in a single month. July ranged from 163.9 to 183.9 cents, while May stretched from 169.9 to 192.9 cents. Those movements matter because filling up is often a fixed household necessity rather than an optional purchase. A commuter who happens to need gasoline near the upper end of one of those cycles can spend noticeably more than someone filling the same tank only days earlier.
Rising Crude Prices Are Adding Pressure Far Beyond Toronto
Toronto retailers operate locally, but one of the biggest pressures on their costs is moving thousands of kilometres away. Reuters reported that Brent crude closed Friday at $96.28 a barrel, its highest closing level since late July, as renewed U.S.–Iran hostilities intensified concerns about global energy supplies. U.S. forces struck three Iranian oil tankers on September 5 after Iranian forces launched missiles at American naval vessels, adding another layer of risk to an already disrupted oil market.
Shipping through the Strait of Hormuz has also remained sharply constrained. Reuters reported that only four commodity vessels crossed the waterway on one recent day, compared with a 10-day average of roughly 15. Before the Iran war, around 125 large commercial vessels crossed daily. Natural Resources Canada identifies world crude prices, supply availability, inventories and refinery conditions as major forces behind gasoline prices. When traders begin pricing greater supply risk into crude and refined fuels, Toronto drivers can eventually see the effect on roadside signs.
Ottawa’s Tax Holiday Is Preventing Prices From Being Even Higher
One important piece of the pump price is temporarily missing. The federal government has suspended the normal 10-cent-per-litre excise tax on gasoline, a measure introduced in April as energy prices surged. The relief had originally been scheduled to end after Labour Day, creating the possibility that motorists could face a sudden additional increase just as market prices were already climbing.
Ottawa changed course on September 2. Federal documents confirm that the zero-rate period will now continue through January 31, 2027. From February 1 through March 31, the gasoline excise tax is scheduled to return at half its normal rate, or five cents per litre, before the full 10-cent rate resumes April 1. That means Toronto’s current 183.9-cent price is being recorded while the federal levy is effectively zero. Without the suspension, the underlying tax burden would be higher. The extension therefore acts as a significant buffer against the international energy shock currently reaching Canadian households.
Ontario Taxes and HST Still Form Part of Every Pump Price
The federal excise-tax pause does not mean Toronto gasoline is tax-free. Ontario continues to impose a provincial gasoline tax of nine cents per litre on unleaded gasoline. The province permanently reduced that rate from its previous level in 2025 after several years of temporary relief, making nine cents the current legislated rate for ordinary gasoline purchases.
Ontario also applies the 13% Harmonized Sales Tax to gasoline. Unlike a fixed cents-per-litre charge, a percentage-based sales tax becomes more expensive in dollar terms as the underlying retail price increases. Natural Resources Canada explains that pump prices generally contain four broad components: crude-oil costs, refining costs and margins, retail costs and margins, and government taxes. That combination helps explain why a crude-market shock does not translate into a simple one-for-one change at the station. The final Toronto price reflects an entire chain stretching from international oil markets and refineries to wholesalers, retailers and the taxes embedded in the final transaction.
A Few Cents Quickly Become Real Money Over a Full Tank
At 183.9 cents a litre, filling a 50-litre tank from empty costs about $91.95. If En-Pro’s Sunday forecast of 186.9 cents is realized, that same fill would cost approximately $93.45. The three-cent overnight increase therefore adds only $1.50 to one 50-litre purchase, but focusing solely on the overnight move understates how much the recent run-up has changed household fuel bills.
Consider August’s GTA low of 162.9 cents a litre. A 50-litre purchase at that price would have cost roughly $81.45. At Saturday’s 183.9-cent benchmark, the same quantity costs $10.50 more. At the forecast Sunday level of 186.9 cents, the difference rises to $12. That can become meaningful for households running two vehicles, workers with long commutes or families making repeated highway trips. Fuel-price increases are especially noticeable because they are displayed in large numbers on roadside signs, turning inflation into something consumers encounter repeatedly on ordinary drives.
Toronto Is Expensive, but It Is Still Far From Canada’s Highest-Priced Market
Toronto’s 183.9-cent gasoline is uncomfortable, but Canadian drivers are facing very different conditions depending on where they live. Canadians for Affordable Energy recently listed Vancouver above $2.09 a litre, Montreal above $2.05, Calgary around $1.69 and Winnipeg near $1.52. Its latest Sunday projections similarly put Vancouver and Montreal well above Toronto, while several Prairie markets remain significantly cheaper.
Natural Resources Canada says regional gasoline-price differences are influenced by provincial and municipal taxes, transportation costs, sales volumes, local competition and the type and location of fuel stations. That means a national crude-price shock does not produce one national pump price. Vancouver can respond differently from Toronto, and Toronto can differ from nearby communities even when stations are purchasing broadly similar products. Local price competition also matters. A busy cluster of stations may undercut one another, while areas with fewer retailers can sustain higher margins. For motorists, the Canadian gasoline market is national upstream but remarkably local once fuel reaches the pump.
Toronto Has a Long History of Sudden Gasoline Price Cycles
The sharp jumps Toronto motorists see are not entirely new. Academic research has documented distinctive gasoline-price cycles in the city for decades. Economist Michael Noel studied station-level Toronto data and found strong so-called Edgeworth price cycles: stations gradually undercut competitors, prices drift downward and then a large, rapid increase effectively resets the market. Competing stations often follow the increase quickly before the downward process begins again.
That pattern helps explain why gasoline prices can feel different from groceries or other household expenses. Prices do not simply climb smoothly when costs rise. Instead, Toronto can experience several modest declines followed by an abrupt overnight restoration. Later research by Noel found that cost increases in Toronto could also pass through more rapidly than decreases, with retail cycles playing an important role in the asymmetry. Current geopolitical and wholesale pressures are separate from that academic work, but the underlying retail structure remains useful context. A three-cent Sunday jump after several up-and-down days fits a city accustomed to unusually visible gasoline-price resets.
Gasoline Is Already Showing Up in Canada’s Inflation Numbers
The frustration at Toronto pumps is also visible in national economic statistics. Statistics Canada reported that gasoline prices were 25.7% higher year over year in July 2026. Gasoline prices increased 3.6% in July alone, while the broader transportation component of the Consumer Price Index was 7.8% higher than a year earlier. Overall Canadian CPI inflation stood at 3.0%.
Statistics Canada specifically identified gasoline and travel costs as contributors to the acceleration in headline inflation. Without gasoline, the all-items CPI rose 2.2% year over year, showing how much energy prices were adding to the headline figure. This matters beyond drivers because transportation expenses are embedded throughout the economy. Businesses pay to move employees, products and equipment, while households often have limited ability to eliminate commuting immediately. The next official CPI release will cover August, meaning the latest late-summer fuel increases have not yet been fully captured in the most recently published national inflation data.
Forecasts Matter, but the Price on the Sign Still Wins
The most useful way to read Sunday’s forecast is as an indication of direction rather than a promise that every Toronto station will show exactly 186.9 cents. En-Pro itself cautions that the current market is experiencing sporadic movements and that forecasts may be revised during the day. Canadians for Affordable Energy’s slightly higher 187.9-cent estimate reinforces that uncertainty. Different stations can also move at different times as inventories turn over and nearby competitors respond.
For motorists who need fuel, location can therefore matter nearly as much as the headline average. Natural Resources Canada notes that competition between nearby retailers can create meaningful local differences, including within the same metropolitan area. A 10-cent-per-litre difference between two stations represents $5 on a 50-litre fill, although a long detour can quickly eat into that saving. The larger message from this weekend is less about one midnight increase than the environment behind it: Toronto has entered September with elevated crude prices, unstable retail cycles and little guarantee that the next move will be small.
