The EV vs gas decision isn’t the sticker price — it’s the 5-year cost of owning and driving the thing. This calculator layers in your state’s actual electricity and fuel prices, the federal tax credit, a realistic maintenance differential, and depreciation to tell you exactly when the electric vehicle pulls ahead — or if it never does in your state.
Pro tip: The single biggest swing factor is your state’s electricity rate. Home charging in Washington ($0.11/kWh) costs about a third of what it costs in California ($0.30/kWh). Many EV break-even calculations assume the national average and get the answer completely wrong for your specific zip code.
| Year | EV cost | Gas cost | Cumulative EV | Cumulative Gas | Running diff |
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The real cost of EV ownership: what the sticker price hides
The headline comparison of an electric vehicle to its gas equivalent almost always revolves around the purchase price, and almost always misleads. A $42,000 EV and a $30,000 gas car have a $12,000 gap, but that gap closes fast: a full federal tax credit alone knocks the EV down to $34,500, and over five years of driving the gap typically inverts in the EV’s favor. The question is “when does it invert in your state, at your mileage, with your fuel prices?” That’s what this calculator answers.
Why state-level prices matter so much
The single most underrated variable in the EV vs gas comparison is your state’s residential electricity rate. National-average calculators assume about $0.16/kWh — but real rates range from roughly $0.11/kWh in Washington (cheap hydropower) to over $0.30/kWh in California, Hawaii, and much of New England. At 25 kWh/100 miles and 12,000 miles per year, that gap alone is a difference of about $570 in annual fuel cost. Over five years, the exact same EV driving the exact same miles costs roughly $2,850 more in fuel in California than in Washington. National averages hide that completely.
Gas prices matter too, but less dramatically than people think. A $0.50/gallon swing at 30 MPG and 12,000 miles is $200 per year — meaningful, but only a third the swing a major electricity rate change can produce. The state you live in changes the EV math much more than the year you buy in.
The federal EV tax credit in 2026: who actually gets it
The $7,500 federal tax credit (Clean Vehicle Credit, reported on IRS Form 8936) is available only for qualifying vehicles assembled in North America, with battery components sourced according to strict thresholds, purchased by buyers within income caps of $150,000 (single) or $300,000 (joint), and priced below vehicle MSRP caps ($55,000 for cars, $80,000 for SUVs and trucks). Vehicles that meet only some of the battery sourcing rules earn a partial credit of $3,750.
Since 2024, buyers have been able to transfer the credit to a registered dealer at the point of sale, effectively turning it into a down-payment reduction. If you qualify, this is a material advantage — one of the few government tax credits that actually lowers your out-of-pocket cost rather than waiting until tax season.
Maintenance: the quiet savings that add up
Electric vehicles have no oil changes, no transmission service, no spark plugs, no timing belts, no fuel filters, no exhaust system, and dramatically less brake wear thanks to regenerative braking. Over 100,000 miles, Consumer Reports and several industry analyses consistently find EV maintenance costs run 30–40% below comparable gas vehicles. In dollar terms, that’s roughly $1,500–$2,500 in savings over five years at average mileage.
The caveats: tires on heavier EVs wear slightly faster, and 12-volt batteries and cabin air filters still need replacement on the same schedule as gas cars. Out-of-warranty battery replacement is the big risk — but most manufacturers now provide 8-year, 100,000-mile battery warranties, and real-world failure rates below 2% over that period.
Home charging vs public charging: cost per mile
Home Level 2 charging at the national-average $0.16/kWh works out to about 4 cents per mile on an efficient EV — less than a third of what a 30-MPG gas car costs per mile at $3.50/gallon. Public fast charging, however, runs dramatically higher: $0.40–$0.55/kWh at Tesla Superchargers and third-party networks, or roughly 10–14 cents per mile. That’s closer to gas car cost — sometimes exceeding it.
The practical takeaway: if you can charge at home the vast majority of the time, the savings add up fast. If you rely primarily on public fast charging (apartment dwellers without off-street parking, for example), the EV savings are much smaller, and in some high-cost states the operating cost can approach gas parity.
The break-even myth and what actually matters
EV-skeptical articles often quote a break-even figure of seven or eight years — sometimes longer — and use that as evidence that EVs don’t pencil out. What they usually hide is what assumptions they’re running with. If you strip the federal tax credit, use national average electricity, assume low miles (8,000 per year), and compare against a 40-MPG hybrid, you can produce almost any break-even number you want.
A more honest read: for a buyer who qualifies for the full tax credit, drives 12,000+ miles per year, charges predominantly at home, and lives in a state with moderate or below-average electricity rates, an EV commonly breaks even in years 2–3. At 10 years, the EV is typically $10,000–$15,000 ahead. Change the inputs and those numbers shift — this tool is built to show you those shifts in real time instead of hiding them behind a single headline figure.
Depreciation: the one area where gas can win
EVs have historically depreciated faster than gas vehicles in years 1–3 — partly because of rapid improvements in battery technology that made older EVs seem dated, and partly because the federal tax credit effectively depresses resale prices (why pay $40K for a used EV when a new buyer can get an equivalent one for $42.5K after the $7,500 credit?). This depreciation gap has narrowed considerably since 2024 as the EV market matured, but it’s still a real cost when you sell.
For five-year owners, this matters most if you plan to trade in rather than run the car into the ground. The way this calculator is built, depreciation is implicitly baked into the 5-year ownership window: we measure total cost of ownership, which captures the lower resale value through the implied cost per year of ownership.
How to use this calculator
Enter the real purchase prices of the EV and the gas equivalent you would otherwise buy — trim and features matched as closely as possible. Select your federal EV tax credit eligibility and any state incentive. Set your annual mileage honestly (most people underestimate). Pick the EV efficiency from the presets or drop in your model’s kWh-per-100-miles from the EPA window-sticker label. Do the same for the gas MPG. Select your state to apply its actual electricity and gasoline prices. The tool updates in real time — try different scenarios, particularly toggling the federal credit and swapping states, to see how sensitive the break-even is to each variable.
Frequently Asked Questions
When does an EV become cheaper than a gas car?
The break-even point depends mainly on your electricity rate, your gas price, and your mileage. In states with cheap electricity and expensive gas (like Washington or Oregon), an EV often wins within 2 to 3 years. In high-rate states, it can take 5 years or longer, or not happen at all.
How much cheaper is it to charge at home versus buying gas?
Home charging typically costs one-third to one-half of equivalent gasoline. At 25 kWh per 100 miles and $0.16 per kWh, driving 100 miles costs about $4. The same 100 miles in a 30 MPG gas car at $3.50 per gallon costs about $11.67.
Do EVs really need less maintenance?
Yes. EVs have no oil changes, no spark plugs, no timing belts, and regenerative braking dramatically reduces brake wear. Industry data from Consumer Reports and others shows EV maintenance costs running roughly 40% to 50% below equivalent gas vehicles over the first 5 years.
What is the federal tax credit for EVs?
The federal Clean Vehicle Credit currently offers up to $7,500 for qualifying new EVs and up to $4,000 for qualifying used EVs. Eligibility depends on income caps, vehicle price, battery sourcing, and final assembly location, and the rules have been updated multiple times since 2022.
Do EVs depreciate faster than gas cars?
Historically EVs depreciated faster, but the gap has narrowed as ranges improve and charging infrastructure expands. Tesla models and popular EVs from 2022 onward now hold value similarly to comparable gas vehicles, though niche or short-range older EVs still depreciate quickly.