Electric Car Running Costs UK 2026: Is an EV Really Cheaper?
Key takeaways
- Charging at home on a standard tariff costs about 7.5p per mile, against about 19.8p for a petrol car at 40 MPG
- Public charging averaged 75p/kWh in September 2026 (Zapmap), and rapid chargers about 79p. At that price an EV costs more per mile than a petrol car
- Electric cars now pay road tax: a £10 first payment, then £200 a year for cars registered from April 2017
- In my 10,000-mile example, a home-charged EV saves about £1,335 a year on running costs
- Purchase price, depreciation and insurance can matter more than the running-cost saving, so compare them separately
Whether an electric car is cheaper to run depends almost entirely on how and where you charge. This guide goes through each running cost with figures I could check against a source, compares them with petrol and diesel, and shows where my own assumptions come in.
The true cost of charging an electric car
Charging is the biggest variable in EV running costs, because the price per kWh differs so much between home and public charging.
Home charging
The Ofgem price-cap average for electricity from 1 October 2026 is 26.32p per kWh (default tariff, Direct Debit, Great Britain). Some EV-specific tariffs offer much cheaper overnight rates, and figures of around 8–9p/kWh have been reported for tariffs such as Octopus Go, but rates vary by supplier and region, so check your own quote.
Public charging
Zapmap's Price Index shows average pay-as-you-go prices in September 2026 of 75p/kWh across all public chargers, about 54p/kWh for AC (slow and fast) chargers and about 79p/kWh for rapid and ultra-rapid chargers. Memberships and promotions can bring this down.
| Charging type | Cost per kWh | Cost per mile | 60 kWh charge |
|---|---|---|---|
| Home, standard tariff (Ofgem cap average) | 26.32p | 7.5p | £16 |
| Home, off-peak EV tariff (approximate) | about 8.5p | about 2.4p | about £5 |
| Public AC charger (Zapmap average) | 54p | 15.4p | £32 |
| Public rapid/ultra-rapid (Zapmap average) | 79p | 22.6p | £47 |
| All public chargers (Zapmap average) | 75p | 21.4p | £45 |
The public charging trap: at the average public price, an electric car costs about 21.4p a mile, which is more than a petrol car at about 19.8p. The EV running-cost advantage depends largely on charging at home. If you can't, the saving shrinks or disappears.
Fuel cost comparison: EV vs petrol vs diesel
Using UK average prices on 14 October 2026 (petrol 174.1p/litre, diesel 199.1p/litre, from Fuel Finder UK), 40 MPG for the petrol car and 48 MPG for the diesel car:
At 10,000 miles a year, home charging at 26p/kWh costs about £743 in electricity, against about £1,978 in petrol: a difference of roughly £1,235 on fuel alone.
Servicing and maintenance
Electric cars have fewer moving parts than petrol and diesel cars. There are no oil changes, cambelt, exhaust system or spark plugs, and regenerative braking can reduce brake wear. Tyres are still a wear item, and heavier cars can use them faster. I haven't found a reliable published average cost for either type, so the figures below are my own assumptions, and you should replace them with garage quotes:
- Petrol servicing and repairs: about £250 a year (assumed)
- Electric servicing and repairs: about £150 a year (assumed)
Battery concerns: batteries lose capacity gradually, and manufacturers' battery warranties differ in length and conditions. Check the warranty and battery health of the specific car, particularly if you're buying used.
Road tax (VED) for electric cars in 2026
Electric cars no longer have a zero rate. These are the GOV.UK rates for 2026/27:
| Registration date | What it pays |
|---|---|
| On or after 1 April 2017: first payment | £10 (zero emission) |
| On or after 1 April 2017: second payment onwards | £200 a year |
| 1 March 2001 to 31 March 2017 | Band A: £20 a year |
| List price over £50,000, with the supplement | £200 + £440 = £640 a year, for 5 years |
Expensive car supplement: GOV.UK says an extra £440 a year applies for 5 years (counted from the second time the vehicle is taxed) if the list price is over £40,000, or over £50,000 for an electric car. Zero emission cars registered before 1 April 2025 don't pay it. GOV.UK's page says the supplement applies to electric vehicles registered between 1 April 2025 and 31 March 2026 and doesn't say what applies after that, so check the current rules if you're buying a newer car. Use our Road Tax Calculator to check your own rate.
Insurance costs for electric cars
Insurance depends on the car, your profile and your location, and it can be higher or lower for an electric car than for a similar petrol model. The ABI reports an average motor insurance premium of £566 in Q2 2026, but that covers all cars and isn't specific to electric vehicles. I haven't found a reliable published figure for the electric premium difference, so get real quotes for the specific cars you're comparing. Higher purchase prices and repair costs can push premiums up.
Total annual running cost comparison
This example uses 10,000 miles a year, a petrol car at 40 MPG and 174p/litre, and an EV at 3.5 mi/kWh charged at home at 26p/kWh. Servicing figures are my assumptions, road tax is the £200 standard rate for both, and the MOT is the £54.85 maximum fee. Insurance is left out because it depends on your own quotes.
| Cost category | Petrol car | EV (home charging) |
|---|---|---|
| Fuel / electricity | £1,978 | £743 |
| Road tax (VED) | £200 | £200 |
| Servicing & repairs (assumed) | £250 | £150 |
| MOT (maximum fee) | £55 | £55 |
| Total | £2,482 | £1,148 |
In this example the home-charged EV is about £1,335 a year cheaper to run. If you charged all of it on public chargers at the 75p average instead, the electricity alone would cost about £2,143 a year, which is more than the petrol car's fuel. Whether the running-cost saving justifies the purchase price depends on the cars and how long you keep them.
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Use the EV vs Petrol Calculator →When an EV does NOT make financial sense
- No home charging: if you rely on public charging, your cost per mile can exceed a petrol car's, especially at rapid chargers.
- Low annual mileage: with few miles, the fuel saving is small, so it may not offset a higher purchase price in the time you own the car.
- Frequent long motorway journeys: these usually mean more rapid charging, which costs more per mile.
- A high list-price EV: over £50,000 the £440 expensive car supplement can apply for 5 years, which takes a chunk out of the fuel saving.
Frequently asked questions
Is it cheaper to run an electric car than a petrol car in the UK in 2026?
For drivers who charge mostly at home, usually yes. In my 10,000-mile example the home-charged EV is about £1,335 a year cheaper to run. For drivers who rely on public chargers at around 75p/kWh, the cost per mile can be higher than a petrol car's.
Do electric cars pay road tax in the UK?
Yes. Electric cars registered from 1 April 2017 pay a £10 first payment and then £200 a year. Zero emission cars registered between March 2001 and March 2017 pay £20 (Band A). An extra £440 a year for 5 years can apply to expensive models, so check the current GOV.UK rules for your car.
How much does it cost to charge an electric car at home?
At the Ofgem price-cap average of 26.32p/kWh, charging a 60 kWh battery from empty to full would cost about £16, or about 7.5p a mile at 3.5 miles per kWh. An off-peak EV tariff could cost much less, depending on supplier and region.
Are electric cars cheaper to insure than petrol cars?
It depends on the car and the driver. I haven't found a reliable published figure for the difference, so compare real quotes for the specific cars. The ABI's Q2 2026 average premium across all motor insurance was £566.
How often do electric cars need servicing?
Most manufacturers recommend regular servicing, similar to petrol cars, but with fewer parts to service because there is no engine oil, cambelt or exhaust. Check the service schedule and price for the specific car.
Also useful
Sources
- Ofgem — Energy price cap, 1 October to 31 December 2026
- GOV.UK — Vehicle tax rate tables
- Zapmap — UK EV Charging Price Index (September 2026)
- Fuel Finder UK — UK Fuel Price Index (14 October 2026)
- ABI — Motor insurance claims and premiums, Q2 2026
- GOV.UK — MOT test fees
Prakash
Prakash is the founder and editor of UK Driving Tools. He maintains the site's calculators and guides and checks the rates and rules they use against official UK sources, such as GOV.UK, the DVLA, HMRC and Transport for London, before publishing.
Pages are drafted with the help of AI tools and then checked by the editor. He isn't a lawyer, accountant or UK-qualified adviser, so every page lists its sources and states what its calculator can't tell you. Nothing on this site is legal or financial advice.
Pages on UK Driving Tools are drafted with the help of AI tools. Before publishing, the figures and rules on each page are checked against the official source named on the page, and calculator examples are tested against the working formula. Pages are updated when rates or rules change. Our Editorial Policy explains the full process, including how to report a mistake.
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