The sticker price is the smallest decision you make when buying a car. What actually determines whether a vehicle is affordable is the total cost of owning it — every dollar that leaves your account over the years you keep it, not just the number on the window. For electric vehicles in 2026, that total cost picture has shifted enough that the old assumptions no longer hold. This guide breaks down every component of EV total cost of ownership, with real 2026 numbers, and shows you how to calculate your own.
## What "total cost of ownership" actually meansTotal cost of ownership (TCO) is the sum of every cost associated with a vehicle across the time you own it, usually measured over five years. It has five main components: depreciation (the value the car loses), fuel or electricity, maintenance and repairs, insurance, and taxes and fees. Purchase price feeds into depreciation but isn’t a standalone cost — what matters is how much value you lose, not what you paid.
EVs and gas cars distribute these costs very differently. An EV often costs more up front but less to run; a gas car the reverse. TCO is the only honest way to compare them, because it captures the whole picture instead of one number.
- Depreciation 45%
- Insurance 22%
- Electricity 14%
- Maintenance 9%
- Registration & fees 6%
- Tires & wear items 4%
For most vehicles, depreciation is the single largest ownership cost — larger than fuel, larger than maintenance. It’s also where EVs have historically been weakest and are now improving. Early EVs depreciated fast because battery anxiety scared used buyers and technology moved quickly. In 2026, that’s stabilizing as battery longevity data matures and used-EV demand grows, though depreciation still varies enormously by model.
The key EV-specific factor is battery health: an EV’s resale value tracks closely with its battery’s state of health (SOH). Industry data suggests each 1% drop in SOH pulls resale value down by roughly 1.2–1.6% for mainstream models, and the relationship steepens once SOH falls below about 85%. We cover how to read battery health in our guide to checking a used EV’s battery health.
Fuel vs electricity — where EVs win
This is the clearest EV advantage. Charging at home is dramatically cheaper than buying gasoline. As of early 2026, regular gas averages around $2.90 a gallon while residential electricity averages roughly $0.14–$0.17 per kWh. For a typical driver charging mostly at home, an EV costs around $0.04–$0.05 per mile in energy versus roughly $0.10–$0.13 per mile for a comparable gas car — about half, sometimes a third.
Over a typical 12,000-mile year, that gap is roughly $600 in annual energy savings, or about $3,000 over five years before maintenance is even counted. The advantage narrows if you rely heavily on public DC fast charging (which can run $0.25–$0.45 per kWh) but rarely disappears for home chargers.
EVs have far fewer moving parts than combustion cars — no oil changes, no spark plugs, no exhaust system, no multi-speed transmission to service. Regenerative braking also extends brake-pad life significantly. The result is consistently lower scheduled maintenance costs across the ownership period. EVs aren’t maintenance-free — tires (often wearing faster due to weight and torque), cabin filters, brake fluid, and coolant still need attention — but the routine-service bill is materially lower than an equivalent gas car’s.
Insurance — often higher
One place EVs can cost more: insurance. EVs frequently carry higher premiums because repair costs (especially battery-pack damage) and parts can be more expensive, and some models are pricier to replace. This varies widely by model and insurer, so it’s worth quoting your specific vehicle rather than assuming. It’s a real line item that can offset some of the fuel savings.
Taxes, fees, and incentives
Incentives can swing EV TCO meaningfully. Federal and state purchase incentives, where available, reduce effective purchase price; some states conversely add annual EV registration fees to offset lost fuel-tax revenue. The federal charger tax credit (Section 30C) covers 30% of home-charger installation cost up to $1,000 for eligible locations, though it is scheduled to expire June 30, 2026. Always check current programs for your state, since these change frequently.
Putting it together
No single number answers “is an EV cheaper to own” — it depends on your mileage, your electricity rate, your insurance, the specific models, and how long you keep the car. A high-mileage home-charging driver sees EVs win comfortably on TCO; a low-mileage driver who relies on expensive public charging and faces high EV insurance sees a narrower gap.
The reliable way to know is to run your own numbers. Our TCO Calculator lets you input your mileage, rates, and candidate vehicles to see the real five-year picture for your situation.
Frequently asked questions
Is an EV really cheaper to own than a gas car?
Often yes, over five years, primarily through lower fuel and maintenance costs — but it depends on your mileage, electricity rate, insurance, and the specific models. High-mileage home-charging drivers see the biggest advantage.
What’s the biggest cost of owning an EV?
Usually depreciation — the value the car loses over time — same as most vehicles. For EVs, depreciation is closely tied to battery state of health.
How much do you save on fuel with an EV?
Charging mostly at home, an EV typically costs about half the per-mile energy cost of a comparable gas car — roughly $600 a year, or about $3,000 over five years, for a 12,000-mile driver at 2026 prices.
Do EVs cost more to insure?
Often, yes. Higher repair and replacement costs can push EV premiums above comparable gas cars, though it varies widely by model and insurer. Quote your specific vehicle.
How long should I measure TCO over?
Five years is the standard window — long enough to capture depreciation and running costs, short enough to reflect a realistic ownership period.
Run your own numbers
The averages here are a starting point, not your answer. Your mileage, your electricity rate, your insurance quote, and the specific vehicles you’re comparing all move the result. Put them into the TCO Calculator for your real five-year cost, and if you’re buying used, pair it with our battery health guide — because on an EV, battery condition is the number that drives both running cost and resale.
Sources
- U.S. Energy Information Administration (EIA) — residential electricity rates 2026
- Recharged — EV charging cost vs gas cost per mile, 2026
- Geotab — 2026 EV battery health study
- IRS — Section 30C Alternative Fuel Vehicle Refueling Property Credit
WATTSHIP intelligence is for reference and estimation. Costs vary by vehicle, location, rates, and driving patterns; figures are illustrative national averages. Confirm current incentives and quotes before purchasing. See our Disclaimer.