Gas prices in Toronto today and tomorrow

The official figures for Toronto

Every figure below is dated and comes from a public source. The Ontario survey is weekly, so on a Thursday the newest official number is already three days old; the estimate column is what the published method expects for October 27, 2026.

Premium costs 30.7¢/L more than regular at the latest survey, a spread that comes from the refinery market for higher-octane blends rather than from taxes, which are the same per litre for both grades. Diesel is priced on its own market, and with no daily open signal for it the estimate only moves when the Ontario rack price is newer than the survey.

How the estimate for tomorrow is built

The method starts from the Monday average, then asks what the wholesale market has done since. Ontario publishes the Toronto rack price every business day, but with about a week of delay, so on most days it stops before the survey date and cannot add anything. The Régie de l'énergie du Québec publishes its Montréal survey every morning; once its sales taxes and fuel taxes are removed, what is left moves with the same refinery and import market that supplies the Greater Toronto Area. The change in that pre-tax number since Monday, multiplied by 1.13 for HST, is added to Toronto's Monday price.

It is a reasonable signal, not a forecast of what one station on Lake Shore Boulevard will post. Over the weeks replayed, its average miss was 37% smaller than that of the naive guess of "no change". The full rules, including how tax changes are dated, are on the method page.

Where a Toronto litre goes

At today's price the sales tax alone is 20.3¢/L. Ontario's gasoline tax has stayed at 9 cents since it was cut from 14.7 cents in July 2022, and the province made that rate permanent on July 1, 2025. The federal excise tax of 10 cents has been suspended since April 20, 2026; Finance Canada's draft legislation (proposed, not enacted) extends the suspension to January 31, 2027, then brings back half of it in February and March 2027 and all of it on April 1, 2027.

Whatever remains after taxes pays for the gasoline itself, the pipeline and truck to the station, the wholesaler and the retailer. That share is what changes from week to week; the taxes per litre do not.

The last weeks in Toronto

The Ontario series is published under the Open Government Licence, so its recent surveys can be shown in full. They give a sense of how far the price travels in a quarter.

What a fill-up costs

A compact car with a 45-litre tank costs $79.51 to fill at the last survey price, a small SUV with 60 litres $106.02. A one-cent move changes those fill-ups by 45 and 60 cents. If you are deciding between filling up today or tomorrow, the gap between the survey and the estimate on a 55-litre fill-up is $1.81.

Commuters who drive from Durham Region or Peel into the city can compare the two regional averages with the city ranking.