EV charging is eating your gallons: the non-fuel profit playbook for 2026.

The transition is already underway

Every operator has felt it, even if the P&L has not fully caught up: the gallons are getting harder to grow. EV adoption is climbing, vehicles are more efficient, and the trend line on fuel volume points down over the long run. In 2026 the US c-store count fell for a second straight year, down 280 stores to 151,975, per NACS. Convenience stores still sell roughly 80% of the fuel bought in the US, and the industry moved about $837.4 billion in 2024, split $335.5 billion in-store and $501.9 billion in fuel. But volume leadership is not the same as profit, and that gap is the whole story.

Fuel is traffic, not profit

Here is the number that reframes the whole business. Gross fuel margin typically runs about 8 to 14 cents per gallon. Then the deductions start. Card fees run 2 to 3% of a $60 to $80 ticket. Add labor, utilities, wet-stock loss, and maintenance, and the operator often nets only about 3 to 7 cents per gallon. At high pump prices, the card fee alone can consume the entire net fuel margin, so a busy forecourt can move enormous volume and clear almost nothing on it.

That is not a reason to abandon fuel. Fuel is the reason the customer is on your lot. But it reframes fuel as a customer-acquisition cost rather than a profit center, which is exactly the argument in our field guide on pump-to-store conversion. The profit is inside, and it always was.

Why card fees are the quiet killer

Swipe fees deserve their own paragraph because they scale with the price of fuel, not with your margin. When a gallon costs more, the interchange on that gallon costs more too, but your cents-per-gallon margin does not move with it. On a $4-plus gallon and a full-tank fill, the card fee can erase the entire net you would have kept. This is why two stations with identical gallons can have very different fuel P&Ls, and why the operators who survive the transition watch card cost as closely as they watch price.

Shifting the profit center means seeing it first

Everyone agrees the answer is “grow inside sales.” The hard part is that you cannot shift a profit center you cannot measure. Growing inside sales is not a slogan; it is three specific, measurable things:

• Per-category inside margin. Coffee, packaged beverages, snacks, beer and wine, and foodservice all carry different margins. The store aggregate hides which categories actually pay. Break it out or you are flying blind.
• Pump-to-store conversion. The whole model depends on the fuel customer walking inside and buying something. If you do not measure the conversion rate, you cannot improve it, and you cannot tell which stores are leaking it.
• Foodservice contribution. Foodservice is the highest-margin growth engine in the modern c-store, but it comes with spoilage, prep waste, and labor. Its contribution has to be tracked net of those costs, not just as top-line sales.

For the retention angle on that third point, see how to use foodservice to retain fuel customers. A roller grill is not just margin; it is a reason for the fuel customer to come back next week instead of driving past.

What the survivors do differently

The stores that will still be here after the EV transition are not the ones with the most pumps. They are the ones that already treat inside sales as the profit center and can prove it with numbers. They know their realized margin per category. They know their pump-to-store conversion by site. They know what foodservice actually contributes after waste. And they close the day every night, so a leak gets caught in 24 hours instead of at month-end when the cash is already gone.

None of that is exotic. It is the difference between running the store on the POS aggregate and running it on attributed, per-category, per-pump numbers. The operators who make that shift before the gallons go are the ones who get to choose their exit instead of being forced into one.