The Complete Guide to Electric Car Ownership in the UK (2026)
Key takeaways
- In the example below, charging at home on a standard tariff costs about £1,230 a year less than petrol over 10,000 miles, but charging only at a rapid public charger costs about £280 more
- Electric cars no longer pay zero road tax: after a £10 first-year rate they pay the same £200 standard rate as petrol and diesel (GOV.UK)
- Electric cars with a list price over £50,000 pay an extra £440 a year for five years from the second time they are taxed (GOV.UK)
- The London Congestion Charge is £18 a day from 2 January 2026, and electric cars on Auto Pay get 25% off instead of the old full discount
- A pay-per-mile charge for electric cars (3p a mile) has been announced for April 2028, so factor it in if you will keep a car long term
Several tax advantages that once made the decision to buy an electric car simple have ended or are changing, while the running-cost case still works well for many drivers. This guide covers the picture as it stands in October 2026, not the outdated version still circulating in older articles. At each stage the relevant calculator is linked so you can work out your own numbers.
1Is an EV actually cheaper? Myth vs reality
It depends almost entirely on how and where you charge. A driver who charges mostly at home overnight can save a lot on fuel compared with petrol. A driver who relies on rapid public chargers may save nothing, or even pay more per mile than petrol.
Here is a worked illustration using today's prices, 10,000 miles a year, a petrol car at 40 MPG (174.1p per litre) and an electric car doing 3.5 miles per kWh:
| How the car is fuelled | Price | Per mile | Per year | Compared with petrol |
|---|---|---|---|---|
| Petrol, 40 MPG | 174.1p/litre | 19.8p | £1,979 | — |
| EV at home, standard tariff | 26.32p/kWh | 7.5p | £752 | about £1,230 cheaper |
| EV at home, EV tariff (approx.) | about 8.5p/kWh | 2.4p | £243 | about £1,740 cheaper |
| EV, public AC charger | 54p/kWh | 15.4p | £1,543 | about £440 cheaper |
| EV, public rapid charger | 79p/kWh | 22.6p | £2,257 | about £280 more expensive |
These are illustrations, not averages for every driver. Real efficiency varies with the car, speed and weather, and an off-peak EV tariff depends on your supplier and region. Enter your own figures in the calculator.
⚡ Use the EV vs Petrol Calculator →The question that matters most is not the car but "can I charge at home?" It affects the answer more than almost anything else.
2Home vs public charging — the real cost per mile
The gap between the cheapest and most expensive ways to charge is much bigger than the gap between petrol stations. The same energy can cost several times more at a rapid public charger than at home.
| Charging type | Cost per kWh | Cost per mile | Source |
|---|---|---|---|
| Home — standard tariff | 26.32p | 7.5p | Ofgem price cap average, from 1 October 2026 |
| Home — EV tariff (off-peak) | about 8.5p | 2.4p | Approximate, varies by supplier |
| Public AC charger | 54p | 15.4p | Zapmap, September 2026 |
| Public rapid / ultra-rapid | 79p | 22.6p | Zapmap, September 2026 |
For comparison, a petrol car doing 40 MPG costs about 19.8p a mile and one doing 35 MPG about 22.6p at 174.1p per litre. Home charging comfortably beats petrol, while relying on rapid chargers can wipe out the advantage.
⛽ Use the Fuel Cost Calculator to compare against petrol/diesel →For the wider cost picture, see Electric Car Running Costs UK 2026.
3Road tax and Congestion Charge: what changed
For years electric cars paid no road tax and no Congestion Charge. Both of those advantages have been removed or reduced.
Road tax (GOV.UK): a zero-emission car pays a £10 first payment at registration. From the second payment, electric cars pay the same rates as petrol and diesel: £200 for 12 months (£210 by 12 monthly Direct Debits, £110 for 6 months). Electric cars with a list price over £50,000 pay an extra £440 a year for five years from the second time they are taxed (the limit for petrol and diesel is £40,000). Zero-emission cars registered before 1 April 2025 don't pay the supplement. GOV.UK doesn't spell out how the supplement applies to cars registered after 31 March 2026, so check the rate for a specific car on GOV.UK before you buy.
Congestion Charge (TfL): the old Cleaner Vehicle Discount ended on 25 December 2025. From 2 January 2026 the daily charge is £18, and electric cars registered for Auto Pay get a 25% discount (£13.50 a day). TfL says that discount falls to 12.5% from 4 March 2030.
Pay-per-mile for EVs: the government announced at Budget 2025 an electric vehicle excise duty (eVED) of 3p a mile for electric cars (1.5p for plug-in hybrids) from April 2028, on top of existing road tax. Details may change, so check GOV.UK before relying on this. At 10,000 miles it would be about £300 a year.
4Company car and salary sacrifice EV schemes
One advantage remains large: Benefit-in-Kind (BIK) tax on electric company cars is much lower than on petrol and diesel cars. The rate for zero-emission cars is 4% of the car's list price for 2026/27, and is legislated to rise to 5% in 2027/28, 7% in 2028/29 and 9% in 2029/30. Petrol and diesel cars are taxed at much higher percentages based on their CO2 emissions. Confirm the current rates on GOV.UK because they are set by legislation and can change.
🚘 Use the Company Car Tax (BIK) Calculator →Salary sacrifice schemes for electric cars are popular because low-emission cars are treated more favourably under HMRC's optional remuneration arrangement rules than other cars. Whether it saves you money depends on your tax band, the scheme's terms, and what happens if you leave your job early, so read the terms and compare with other ways of getting a car.
💷 Use the Salary Sacrifice EV Calculator →
5Charging time and road-trip planning
On most electric cars, DC rapid charging slows down as the battery fills, particularly above about 80%, because the car limits the charging rate to protect the battery. This is why many drivers plan shorter stops that charge to around 80% rather than waiting to reach 100%. Charging speed and times depend on your car, the charger, the temperature and the battery level, so check your car's charging curve.
🔌 Use the EV Charging Time Calculator →Plan long journeys with a charging app, allow a buffer for cold weather and motorway speeds, and have a backup charger in mind.
6Driving an EV in cities
As covered above, an electric car no longer drives free through central London. At £18 a day, a car on Auto Pay with the 25% discount pays £13.50. Outside London, Clean Air Zones and low emission zones have their own rules, which vary by city, so check your route directly.
🏙️ Use the Congestion Charge Calculator →
7Resale value and battery degradation
Battery health is a common worry. Batteries lose capacity gradually, and how fast depends on the car, the climate, and how it is charged and used. Many manufacturers offer a battery warranty, often 8 years with a mileage limit, and some specify a minimum capacity they guarantee, so read the terms for the specific car and ask for a battery health report when buying used.
Resale values for electric cars vary widely by model. Fast-changing technology and prices can make older models lose value quickly, so check recent sale prices of the model you are considering.
📉 Use the Car Depreciation Calculator →8Who should — and shouldn't — switch
Rather than a blanket recommendation, here is a split based on the above:
✅ EVs tend to make more sense if:
- You can charge reliably at home overnight
- You do steady, moderate-to-high annual mileage
- You have access to a company car or salary sacrifice scheme
- Most of your driving is local or commuting rather than long motorway trips
⚠️ EVs are a harder case if:
- You rely entirely on public charging (street parking, no driveway)
- Your annual mileage is low, so savings take longer to offset a higher purchase price
- You regularly do long motorway trips that need frequent rapid charging
- The car's list price is over £50,000, which adds the £440 a year supplement
Before you switch: checklist
- Confirm whether home charging is realistically available to you
- Compare your actual mileage and driving pattern using the EV vs Petrol Calculator
- Check the car's list price against the £50,000 supplement threshold and the tax rate on GOV.UK
- Check whether a company car or salary sacrifice scheme is available to you
- Plan charging time for any regular long journeys
- Budget for the Congestion Charge if you drive into central London
- Allow for pay-per-mile (eVED) from April 2028 if you will keep the car long term
- Read the manufacturer's battery warranty terms, not just marketing claims
Frequently asked questions
Is an electric car cheaper to run than petrol in the UK in 2026?
It can be, if you charge at home. In our illustration (10,000 miles, petrol at 40 MPG and 174.1p per litre, EV at 3.5 miles per kWh), home charging on a standard tariff costs about £752 a year against £1,979 for petrol. Charging only at rapid public chargers (79p per kWh) would cost about £2,257, which is more than petrol.
Do electric cars still pay no road tax?
No. A zero-emission car pays £10 at registration and then the same rates as petrol and diesel from the second payment: £200 for 12 months. Electric cars with a list price over £50,000 pay an extra £440 a year for five years from the second time they are taxed. Check GOV.UK for the exact rate for a specific car.
Do EVs still get free London Congestion Charge travel?
No. The old discount ended on 25 December 2025. From 2 January 2026 the charge is £18 a day and electric cars registered for Auto Pay get a 25% discount, which TfL says falls to 12.5% from 4 March 2030.
Are salary sacrifice EV schemes still worth it?
They can be, but it depends on your tax band and the scheme's terms. Low-emission cars are treated more favourably than other cars under HMRC's rules, so these schemes are mostly for electric cars. Compare the total cost, check what happens if you leave your employer, and use the calculator.
How much does an EV battery degrade over time?
It varies by car, climate and how it is charged and used. Many manufacturers give a battery warranty, often 8 years with a mileage limit, so read the terms and ask for a battery health check when buying used.
All tools referenced in this guide
Sources
- GOV.UK — Vehicle tax rate tables
- Transport for London — Changes confirmed to the Congestion Charge
- Ofgem — Energy price cap, 1 October to 31 December 2026
- Zapmap — UK EV Charging Price Index (September 2026)
- Fuel Finder UK — UK Fuel Price Index (14 October 2026)
- CIT Magazine — Budget 2025 confirms EV mileage fees (eVED announcement)
- GOV.UK — Tax on company cars
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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