Enter Your Fleet Details : Get a UK TCO & Savings Report

Compare EV vs diesel pence-per-mile and whole-life TCO for UK fleets. All currency GBP.Methodology

🚀 BUILD VERSION UK-PRESET-5 – Last updated 04/10/2025

Fleet basics

Number of vehicles

Annual mileage (per vehicle)

Fuel economy (MPG UK)

EV efficiency (mi/kWh)

Energy prices

£/kWh: Use your own energy tariffs. AER: Use HMRC advisory rates 8p home / 14p public (Sept 1st 2025).

Diesel price (£/L)

Electricity price (£/kWh)

Charging losses AC (%)

Winter mode

Vehicle economics

ICE purchase price (£)

EV purchase price (£)

EV incentive (£)

Residual value (%) – ICE

Residual value (%) – EV

Running costs

Maintenance (£/mile) – ICE

Maintenance (£/mile) – EV

Insurance (£/year) – ICE

Insurance (£/year) – EV

Charging infrastructure

AC charger cost (£)

Utility rebate (£/charger)

Vehicles per charger

UK taxes

VED – ICE (£/year)

VED – EV (£/year)

NIC on BiK – ICE (£/year)

NIC on BiK – EV (£/year)

Auto-calc EV taxesUse EV capex as P11d

EV P11d value (£)

City charges

ULEZ (£/day)

Congestion charge (£/day)

Central London days per year

London CVD registered

Fleet savings

£57,191

Fleet ICE: £951,216 | EV: £894,024

Simple payback: 2.8 years

TCO per vehicle – EV: £35,761 | ICE: £38,049

TCO – per vehicle (discounted)

Key assumptions

Vehicles	25
Annual mileage	12,000 mi
Diesel price	£1.50/L
Electricity price	£0.28/kWh
Period	4 yrs
Discount rate	8%

Cost breakdown (per vehicle, discounted)

	ICE	EV
Diesel / Electricity	£5,653	£3,562
Maintenance	£2,385	£1,590
Insurance	£2,981	£3,312
Taxes & charges	£5,614	£2,424
Residual value	-£10,584	-£13,407
Charger cost	-	£280

As of Sept 2025 — RAC (diesel), TfL (ULEZ/CC), GOV.UK (VED), HMRC (AER/NIC).