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Updated

What does it actually cost to charge an EV at home?

Every UK tariff compared. Real prices, updated monthly.

1p

per mile — cheapest UK home rate

The Big Numbers#

Key metrics for UK EV home charging in 2026.

0p/mile
Cheapest home charging cost
£0+
Annual savings vs petrol
0+
Public charge points in the UK
0+
EVs sold in the UK in 2025

The Bottom Line

Home charging costs as little as 1p per mile on Octopus Agile — vs 18p per mile for petrol and 23p per mile at a public rapid charger. Switch to an EV tariff and a home charger pays for itself in 4–8 months, saving over £1657/year compared to petrol at 10,000 miles. If you drive a company EV, HMRC reimburses 7p/mile for home charging — every tariff below costs less, so you pocket the difference tax-free.

How Much Does It Cost to Charge Popular UK EVs at Home?

Charging costs vary by vehicle efficiency and battery size. Here's what it costs to fully charge the UK's most popular EVs at home on the cheapest EV tariff (5p/kWh off-peak) vs a standard tariff (25p/kWh).

VehicleBatteryEfficiencyFull Charge (EV tariff)Full Charge (standard)Cost/mile
Tesla Model 3 Standard Range60 kWh3.9 mi/kWh£3.00£14.701.3p
Tesla Model 3 Long Range82 kWh3.5 mi/kWh£4.10£20.091.4p
Tesla Model Y Long Range82 kWh3.3 mi/kWh£4.10£20.091.5p
Tesla Model S100 kWh2.8 mi/kWh£5.00£24.501.8p
VW ID.477 kWh3.2 mi/kWh£3.85£18.861.6p
Nissan Leaf (40 kWh)40 kWh3.8 mi/kWh£2.00£9.801.3p
Nissan Leaf e+ (62 kWh)62 kWh3.5 mi/kWh£3.10£15.191.4p
BMW iX166.5 kWh3.4 mi/kWh£3.33£16.291.5p

Use the interactive calculator below to see detailed costs for any of our 15 supported vehicles.

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Cost Per Mile by Tariff#

Every UK EV tariff ranked by cost per mile. Toggle standing charges to see the true cost impact.

Include standing charge impact
£2.75/week
£3.96/week
£4.12/week
£4.67/week
£4.94/week
£7.69/week
Petrol equivalent18.0p/mi
£34.62/week

Off-Peak Window Timeline#

When each tariff's cheap rate applies. Plan your charging schedule at a glance.

12am3am6am9am12pm3pm6pm9pm
7p/kWh · 11:30pm–5:30am (6 hours)
8.5p/kWh · 12:30am–5:30am (5 hours)
5p/kWh · Variable (30-min slots, cheapest overnight)
14p/kWh · Any time (smart charger managed)
9p/kWh · 12:00am–5:00am (5 hours)
8.99p/kWh · 12:00am–5:00am (5 hours)
7.5p/kWh · 12:00am–6:00am (6 hours)
7.2p/kWh · 12:00am–5:00am (5 hours)
Off-peak window
Variable (cheapest overnight)
Any-time EV rate

Home vs Public vs Petrol#

The real cost difference between charging at home, using public rapid chargers, and driving a petrol car.

Surprise: public rapid chargers (23p/mile) are more expensive than petrol (18p/mile).

Best value

Home (off-peak)

Octopus Agile · 5p/kWh

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Cost per mile
1.4p
Full charge (82 kWh)
£4.10
Annual cost (10k miles)
£143
Save £1,657/yr vs petrol
Most expensive

Public rapid

79p/kWh average

Cost per mile
22.6p
Full charge (82 kWh)
£64.78
Annual cost (10k miles)
£2,257
£2,114/yr more than home
Expensive

Petrol

18p/mile average

Cost per mile
18.0p
Full charge (82 kWh)
£51.66
Annual cost (10k miles)
£1,800
£1,657/yr more than home
⚠️

Public rapid charging is more expensive than petrol

It might sound surprising, but at 79p/kWh the average public rapid charger works out to 22.6p per mile — compared to 18.0p per mile for petrol. That's £457 more per year if you rely solely on public rapid chargers. This is exactly why a home charger on a cheap EV tariff is so valuable — it turns EV running costs from the most expensive option into by far the cheapest.

Charger Payback Calculator#

How quickly each home charger pays for itself compared to public rapid charging at 79p/kWh.

Payback calculated against public rapid charging (79p/kWh) using the cheapest EV tariff off-peak rate for 10,000 miles/year at 3.5 mi/kWh.

HMRC Advisory Rate Comparison#

How much you can pocket when HMRC reimburses 7p/mile but your actual cost is lower.

Since December 2025, HMRC's advisory electricity rate allows employers to reimburse 7p per mile for company EVs charged at home, and 14p per mile for public charging. If your actual charging cost is lower than 7p — which it is on every EV tariff below — the surplus is yours to keep, tax-free.

What is the HMRC advisory rate?

Since December 2025, HMRC allows employers to reimburse employees 7p per mile for business travel in a company EV charged at home, and 14p per mile for public charging. If your actual charging cost is lower than the advisory rate, the difference is yours to keep — tax-free.

Your cost
1.4p/mi
HMRC rate
7p/mi
Your cost
2.0p/mi
HMRC rate
7p/mi
Your cost
2.1p/mi
HMRC rate
7p/mi
Your cost
2.1p/mi
HMRC rate
7p/mi
Your cost
2.4p/mi
HMRC rate
7p/mi
Your cost
2.6p/mi
HMRC rate
7p/mi
Your cost
2.6p/mi
HMRC rate
7p/mi
Your cost
4.0p/mi
HMRC rate
7p/mi

On Octopus Agile, you spend 1.4p/mile. HMRC reimburses 7p/mile — that's £557/year surplus on 10,000 business miles.

HMRC advisory electricity rate for company cars: 7p/mile (home charging), 14p/mile (public charging). Effective from 1 December 2025. Surplus is the difference between HMRC reimbursement and actual charging cost.

Annual Running Cost Scenarios#

What 10,000 miles costs per year across different charging and fuelling methods.

Best EV tariff (Octopus Agile, 5p/kWh)£143
EV tariff + solar offset (est. 30%)£100
Standard rate (24.5p/kWh)£700
Supercharger only (39p/kWh)£1,114
Petrol equivalent£1,800
30%
0% (no solar)80% (large system)

Percentage of annual EV charging offset by solar panels. A typical 4 kWp UK system covers ~30%.

Based on 10,000 miles/year, 3.5 mi/kWh efficiency. Solar offset assumes 30% of annual charging from solar panels.

Break-Even Mileage Calculator#

At what mileage does each EV tariff beat the standard variable rate, including standing charges?

EV-specific tariffs often have a higher daily standing charge than standard tariffs. This calculator shows how many miles you need to drive each year for the cheaper per-kWh rate to offset that standing charge premium. For most drivers, the break-even point is well below average UK mileage.

How this works

EV tariffs often have a higher standing charge than a standard variable tariff (currently ~28p/day). The cheap off-peak rate saves you money per mile, but the standing charge premium costs you every day regardless of usage. This calculator shows how many miles you need to drive per year for each tariff's per-mile savings to outweigh its standing charge premium.

Worth it for almost everyone
Off-peak
5p/kWh
Premium
+18p/day
Break-even
1,203 mi
Worth it for almost everyone
Off-peak
7p/kWh
Premium
+20p/day
Break-even
1,438 mi
Worth it for almost everyone
Off-peak
7.2p/kWh
Premium
+21p/day
Break-even
1,524 mi
Worth it for almost everyone
Off-peak
8.5p/kWh
Premium
+20p/day
Break-even
1,573 mi
Worth it for almost everyone
Off-peak
8.99p/kWh
Premium
+22p/day
Break-even
1,791 mi
Worth it for almost everyone
Off-peak
9p/kWh
Premium
+27p/day
Break-even
2,212 mi
Worth it for almost everyone
Off-peak
7.5p/kWh
Premium
+32p/day
Break-even
2,405 mi
Worth it for almost everyone
Off-peak
14p/kWh
Premium
+20p/day
Break-even
2,442 mi

Break-even = annual miles where EV tariff per-mile savings offset its standing charge premium vs standard variable tariff (~28p/day standing charge, 24.5p/kWh). Lower is better. Calculated at 3.5 mi/kWh.

UK EV Market Snapshot#

Key figures on the state of electric vehicle adoption in the UK.

473,000+
EVs sold in 2025
+23.9% year-on-year·SMMT
290,000+
Teslas on UK roads
and growing·DVLA
88,500+
Public charge points
Feb 2026·Zapmap
+131%
Ultra-rapid charger growth
since 2023·Zapmap
~£1,000
Average charger install cost
Unit + installation·Our data
£500
OZEV grant value
For renters & flat owners·UK Gov

Methodology & Sources#

How we calculate these numbers, and where the data comes from.

Assumptions

EV efficiencyDefault: Tesla Model 3 LR (3.5 mi/kWh)
Varies by vehicle
Battery capacityDefault: 82 kWh (Model 3 LR)
Varies by vehicle
Petrol costAvg UK petrol, 40 mpg economy
18p/mile
Public rapid rateAverage across major UK networks
79p/kWh
Supercharger rateTesla UK average
39p/kWh
Solar offsetDefault 30%, typical 4 kWp UK system
Adjustable (0–80%)
Install costMidpoint of quoted range per charger
£400–600
HMRC advisory rateSince December 2025
7p/mile (home)
Standard standing chargeBaseline for break-even calculation
28p/day

Last updated: ·Reviewed and updated monthly·TeslaCharger.co.uk editorial team

Spot an error? Let us know

Frequently Asked Questions#

How much does it cost to charge an EV at home in the UK?

On the cheapest EV tariff, home charging costs around 2p per mile. On a standard electricity rate (24.5p/kWh), it costs around 7p per mile. Both are dramatically cheaper than petrol at 18p per mile.

What is the cheapest EV tariff in the UK?

Octopus Agile offers the cheapest typical overnight rate at around 5p/kWh, though rates vary by half-hour. Fixed-rate EV tariffs like Octopus Intelligent Go (7p/kWh off-peak) offer more predictable pricing.

How long does a home EV charger take to pay for itself?

Most home chargers pay for themselves in 4 to 8 months when comparing home charging costs to public rapid charging at 79p/kWh. The cheapest chargers can pay back in as little as 4 months.

How much can I save by charging my EV at home?

A typical UK driver covering 10,000 miles per year saves over £1,000 compared to petrol and over £2,000 compared to public rapid charging by charging at home on an EV tariff.

What is the HMRC advisory electricity rate for EVs?

Since December 2025, HMRC allows employers to reimburse 7p per mile for business travel in a company EV charged at home, and 14p per mile for public charging. If your actual cost is lower, the difference is yours to keep tax-free.

How much does it cost to charge a Tesla Model 3 at home?

On the cheapest EV tariff (7p/kWh off-peak), a full charge of the Tesla Model 3 Long Range (82 kWh battery) costs around £5.74. At 3.5 miles per kWh, that gives roughly 287 miles of range for under £6 — around 2p per mile.

Is it cheaper to charge an EV at home or at a public charger?

Home charging is roughly 5–10x cheaper. On an off-peak EV tariff at 7p/kWh, you pay around 2p per mile. Public rapid chargers average 79p/kWh, which works out to roughly 23p per mile. Even on a standard home tariff (24.5p/kWh), home charging is still roughly a third of the cost of public rapid charging.

What time is cheapest to charge my EV at home?

Most EV tariffs offer their cheapest rates overnight, typically between midnight and 5–6am. Octopus Intelligent Go runs 23:30 to 05:30, Octopus Go runs 00:30 to 05:30, and most other EV tariffs cover midnight to 5am. Set your car or charger to schedule charging during these hours.

Do I need a smart charger for an EV tariff?

It depends on the tariff. Octopus Intelligent Go requires a compatible smart charger (like the Ohme Home Pro) or a Tesla with API access. Other tariffs like Octopus Go, EDF GoElectric, and E.ON Next Drive simply offer a cheap time window — any charger with a timer or scheduling feature works.

How much does EV charging add to my electricity bill?

A typical EV driver covering 10,000 miles per year uses roughly 2,850 kWh. On a standard tariff at 24.5p/kWh, that adds about £700/year to your bill. On a dedicated EV tariff with 7p/kWh off-peak, the same mileage adds only about £200/year.

Is a home EV charger worth the investment?

Yes — almost always. A home wallbox costs £800–1,400 installed but saves you roughly £150–200 per month compared to relying on public rapid chargers. Most chargers pay for themselves within 4 to 8 months. They also charge faster than a 3-pin plug (7kW vs 2.3kW) and are safer for regular use.

What is the cheapest way to charge an EV in the UK?

The cheapest method is home charging on a dedicated EV tariff during off-peak hours. Octopus Agile can drop to 5p/kWh or less overnight, while fixed-rate tariffs like Octopus Intelligent Go offer a guaranteed 7p/kWh. If you have solar panels, charging from surplus solar energy can be effectively free.

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