What Really Determines the Price of Gas in Canada?
TurboTax Canada
Sept 2, 2026 | 5 Min Read
Article Summary
This should save you ~10 minutes of readingEvery time you pull up to the pump, the number on the sign feels like a mystery. Why does gas cost more in one province than another? Why do prices jump overnight? And where does all that money actually go?
The truth is, the price of gas in Canada breaks down into four main components: crude oil, refining costs, taxes, and retail markup — and each one shifts for different reasons. Crude oil alone typically makes up around 40% of the price at the pump, while taxes (federal and provincial combined) can account for roughly a third of what you pay, depending on where you live.
That "depending on where you live" part is a big deal. Provincial fuel taxes vary dramatically across the country — from a few cents per litre in places like Alberta and Saskatchewan to significantly more in provinces like Newfoundland and Labrador, Nova Scotia, and Quebec, once you factor in provincial sales tax (HST/GST) on top. A federal excise tax also applies nationwide, though it's currently suspended.
Beyond taxes, gas prices are also at the mercy of global forces: crude demand shifts, supply disruptions, exchange rate swings, pipeline capacity, and plain old retail competition between gas stations all play a role in why prices can change from one day to the next.
And before gas ever reaches your tank, it goes through a whole lifecycle — extraction, transportation, refining, storage, distribution, and final delivery by tanker truck to your local station. It's a longer journey than most drivers realize, especially considering Canadians burn through roughly 118 million litres of gas every single day.
We put together an infographic that breaks all of this down step by step: the four cost components, a province-by-province tax comparison, the key factors that make prices swing, and the full lifecycle of gas from wellhead to pump. Whether you're just curious or trying to budget for your next fill-up, it's a quick way to understand exactly what you're paying for.
Check out the full infographic below to see how your province stacks up.
Key Takeaways:
- Crude oil is the single biggest driver of gas prices in Canada, making up about 40% of the pump price — the rest splits between refining (20%), taxes (roughly a third when combined), and retail/marketing (5%).
- Provincial fuel taxes vary widely across the country, so the same litre of gas can cost noticeably more or less depending on which province you're filling up in.
- Gas goes through a long lifecycle — extraction, transportation, refining, storage, distribution, and delivery — before it ever reaches your local pump, and Canadians consume about 118 million litres a day.
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