Last updated: September 2026

EV vs Petrol: Total Cost of Ownership

The sticker price is the worst way to compare an EV with a petrol car. What matters is total cost of ownership (TCO): everything you spend over the years you own the car. In 2026, EVs typically start more expensive and finish cheaper — but the crossover point depends on five variables. Here is each of them, with numbers.

1. Purchase price: the EV premium is shrinking

Comparable EVs still cost €3,000–8,000 more than equivalent petrol cars in 2026, down from €10,000+ gaps a few years ago. Battery prices — the driver of the gap — have fallen roughly 80% since 2015. In some segments (small city cars, Chinese brands) price parity has effectively arrived; in others (large SUVs, premium) the premium persists.

Incentives can erase the gap overnight, but they change yearly and vary wildly by country — some offer €3,000–6,000 purchase grants, others offer nothing. Always model TCO both with and without incentives, since you may buy just as a scheme ends.

2. Energy: where EVs win biggest

This is the heart of the comparison, and it is entirely about where you charge:

• Home charging (€0.15–0.35/kWh): a 16 kWh/100 km EV costs €2.70–6.20/100 km.
• Petrol (6.5 L/100 km at €1.70/L): €11.05/100 km.
• Saving: roughly €5–8 per 100 km, or €750–1,200/year at 15,000 km.

At 15,000 km/year, a €6,000 purchase premium is repaid by fuel savings alone in 5–8 years. Drive 25,000 km/year and it drops to 3–5 years. Charge mostly at expensive public fast chargers (€0.60+/kWh) and the fuel advantage nearly vanishes — the single most important variable in the whole calculation. See our detailed breakdown in EV charging costs explained.

3. Maintenance: simpler wins

EVs have roughly one-third the moving parts of a combustion car: no oil, no spark plugs, no timing belt, no exhaust, no AdBlue, no gearbox servicing. Regenerative braking means brake pads can last 100,000+ km. Real-world fleet and owner data consistently shows 30–40% lower maintenance costs — typically €300–500/year saved for an average driver.

The caveats: EVs are heavier, so tyres wear 10–20% faster; and while battery failures are rare, out-of-warranty battery replacement is expensive — which is why most EVs carry 8-year/160,000 km battery warranties. Keep the car within warranty and this risk is the manufacturer's.

4. Insurance and taxes

• Insurance: EVs often cost 5–15% more to insure — higher repair costs (battery, sensors) and higher list prices push premiums up. Shop around; the gap varies hugely by insurer.
• Road tax / circulation tax: many countries discount or zero-rate EVs — worth €100–400/year depending on the country.
• Company cars: several countries offer sharply reduced benefit-in-kind rates for EVs, which can be worth thousands per year to employees — often the single biggest TCO lever for fleet and company-car drivers.
• City charges: low-emission-zone fees and congestion charges increasingly favour EVs; in cities like London the difference is hundreds per year.

5. Depreciation: the wildcard

Depreciation is the largest single cost of owning any nearly-new car, and it is where EV comparisons get shaky. Early EVs depreciated hard as newer models with better range arrived. In 2026 the picture is mixed:

• Long-range EVs (400+ km) with modern batteries hold value reasonably, close to petrol equivalents.
• Short-range early models depreciate faster — technology moved past them.
• Battery health is becoming the used-EV equivalent of mileage: cars with battery health reports sell faster and for more.

For a conservative TCO model, assume EV depreciation slightly worse than petrol over 3–4 years and roughly equal over 6–8 years, when both cars are worth little anyway.

Putting it together: a 5-year example

Family hatchback, 15,000 km/year, 90% home charging at €0.24/kWh, no incentives:

The EV edges ahead by ~€1,000 even without incentives — and any purchase grant, higher mileage, or cheaper home tariff widens the gap quickly. Flip the charging mix to mostly public fast charging and the petrol car wins.

When petrol still wins

Be honest about these cases: very low mileage (under ~8,000 km/year — the fuel savings never repay the premium), no home or workplace charging combined with expensive public charging, frequent long towing, and buying just before a major battery-tech step that could hurt resale. TCO is personal — run your own numbers rather than trusting averages.

Frequently asked questions

Calculate your break-even with our EV charging vs petrol calculator — your mileage, your tariff, your answer.

This guide is for information only and is not professional financial advice.