Workplace EV Charging vs Fuel Benefit Charge UK 2026
Electric vehicle charging at work is entirely tax-free, while free petrol or diesel for private use in a combustion company car triggers a separate fuel benefit charge. Here is how the two regimes compare for 2026/27, and why electric company cars sidestep the fuel charge altogether.
How each rule actually works
Workplace EV charging is a specific HMRC exemption: electricity provided by an employer at or near the workplace to charge any vehicle -- company car or an employee's own personal car -- carries no Income Tax or National Insurance charge at all, provided charging is available to employees generally.
The fuel benefit charge is the opposite: a taxable benefit that arises specifically when an employer pays for private-use fuel (petrol or diesel) in a company car. It is calculated using a fixed annual multiplier set by HMRC, applied to the same CO2-based percentage used to calculate the company car benefit itself, and taxed at the employee's marginal rate -- regardless of how much private fuel was actually used.
Side-by-side comparison
| Feature | Workplace EV charging | Fuel benefit charge |
|---|---|---|
| Applies to | Electric vehicles (company or personal) | Petrol/diesel/hybrid company cars only |
| Tax treatment | Fully exempt | Taxable benefit in kind |
| Basis of charge | n/a -- no charge | Fixed multiplier x car's CO2 % |
| Depends on private mileage? | No -- exempt regardless | No -- fixed regardless of actual mileage |
| How to avoid it | n/a -- already tax-free | Repay private fuel cost using Advisory Fuel Rates |
Who benefits most from each approach
Employees driving a company electric vehicle with access to workplace charging get the best possible outcome: a very low company car benefit percentage for a pure EV, plus entirely tax-free charging on top, with no fuel benefit charge to consider at all since there is no fuel.
For combustion-engine company car drivers, the fuel benefit charge is usually poor value unless private mileage is very high, because it is charged as a fixed amount irrespective of actual private fuel used. Most employees with moderate or low private mileage are better off repaying the employer for private fuel at HMRC's Advisory Fuel Rates each month and avoiding the fuel benefit charge entirely.