Should Your Company Switch to Electric Cars?

For many UK businesses, switching company cars to electric makes strong financial and practical sense, especially given the substantial benefit-in-kind (BIK) tax advantage that EVs carry over petrol and diesel equivalents. That said, the right answer depends on your employees' circumstances, the nature of your driving patterns, and how prepared your premises and processes are for electric vehicles. Before committing the whole fleet, it pays to assess your specific situation honestly. If you are new to EV ownership and want to get the basics right from the start, our guides cover everything from cable types to home and workplace charging.

What is BIK and why does it matter for company cars?

Benefit-in-kind (BIK) tax is the tax an employee pays when they receive a non-cash benefit from their employer, including a company car. The amount of tax owed is calculated as a percentage of the car's list price, and that percentage varies by the car's CO2 emissions. Electric vehicles sit in a much lower BIK band than petrol or diesel cars, which can make a meaningful difference to an employee's monthly take-home pay. For employers, a lower BIK band also reduces the National Insurance contribution payable on the benefit. The specific percentage for EVs rises incrementally each tax year, so always check the current rates on gov.uk before making commitments.

Does the 2030 ban mean you have to act now?

Not necessarily, but it is worth planning ahead. From 2030, the sale of new petrol and diesel cars in the UK will end. That does not mean existing vehicles must be scrapped, but it does mean that by 2030 your only option for a new company car will be electric or plug-in hybrid, subject to any evolving rules around PHEVs. Businesses with short fleet replacement cycles will feel this sooner. If your company typically keeps cars for three to four years and you are currently mid-cycle, your next renewal round may land squarely in or near that window. The ZEV mandate, which requires manufacturers to sell increasing proportions of electric vehicles each year, means supply should be more consistent as you approach that deadline.

When does switching work well, and when does it not?

When it works well

• Employees who own their homes and have off-street parking, making overnight charging straightforward
• Roles with predictable, moderate daily mileage where charging at home or at the depot covers most needs
• Businesses with dedicated premises where workplace chargers can be installed
• Companies where the BIK saving is a meaningful part of the employee reward package

When it is more complicated

• Employees in flats or terraced properties without off-street parking who rely entirely on public charging
• High-mileage motorway drivers who need rapid charging infrastructure that is not always predictable
• Companies in rented premises where installing charging infrastructure requires landlord approval and may not be viable
• Roles requiring specialist body types (large vans, towing) where EV options are still developing

Should you lease or buy fleet EVs?

For most businesses, leasing tends to be the more practical route at this stage of EV adoption. Residual values for electric vehicles are less settled than for established petrol and diesel models, which introduces uncertainty if you own outright and sell at the end of a cycle. Leasing transfers that residual risk to the finance provider and makes it easier to upgrade as battery technology and range improve. It also keeps capital free for other business use. That said, if your business has the cash and a clear long-term view on the specific vehicles you need, ownership can work, particularly for stable fleet categories where the numbers are well understood.

How do you handle home charging costs for employees?

HMRC has an approved mileage rate for electricity, which allows employees to be reimbursed for business miles driven in a company electric car at home. The approved rate is reviewed periodically, so check HMRC guidance for the current figure. Beyond mileage reimbursement, some businesses contribute to the cost of installing a home wallbox for employees, sometimes covered in part by government schemes. If your employees charge at work, you can provide that electricity as a tax-free benefit in certain circumstances. Getting the policy right before you roll out the fleet matters, as inconsistent treatment can create payroll complications later.

What about plug-in hybrid company cars?

Plug-in hybrids (PHEVs) sit between full EVs and petrol cars in the BIK table. They carry a higher BIK rate than pure electric vehicles but lower than conventional hybrids or petrol models, so there is still a tax benefit. The real-world efficiency of a PHEV depends heavily on how often it is charged. An employee who charges regularly will see low running costs on electric miles. An employee who never plugs in is effectively driving a heavier petrol car with worse fuel economy. PHEVs may suit employees who regularly travel long distances but can also charge regularly, bridging the gap without the range anxiety of a full EV. They are not the right answer for everyone, but for certain roles they represent a practical middle ground.

Frequently asked questions

What is BIK and why does it matter for company cars?

BIK, or benefit-in-kind, is the tax employees pay on non-cash perks like company cars. The rate is a percentage of the car's list price based on CO2 emissions. Electric vehicles attract a far lower BIK rate than petrol or diesel cars, which reduces the employee's tax bill and the employer's National Insurance contribution on the benefit. Current rates are published on gov.uk and increase each year.

Do employees need home charging to make an EV company car work?

Not absolutely, but it helps enormously. Employees who can charge overnight at home typically have the lowest running costs and the least day-to-day effort. Those relying solely on public or workplace charging can make it work, but it requires more planning and may add time to the working day. Workplace charging provision is the key alternative for staff without home charging access.

What if staff do not have driveways?

This is the biggest practical barrier for many fleets. Employees in flats or homes without off-street parking cannot install a wallbox and depend on public charge points or workplace chargers. If a significant proportion of your workforce is in this situation, you either need robust workplace charging or should consider whether a full EV fleet is premature. Hybrids can bridge the gap for those employees.

Should we lease or buy fleet EVs?

Leasing suits most businesses at this point in EV adoption. Residual values for electric vehicles carry more uncertainty than established petrol or diesel models, and leasing shifts that risk to the finance provider. It also makes it easier to upgrade as technology improves. Outright purchase makes more sense for businesses with clear long-term vehicle needs and the capital available to commit without tying up cash.

How do we handle employee home charging costs?

HMRC publishes an approved mileage rate for electricity for company car drivers charging at home on business use. Reimbursing at that rate keeps the process straightforward and tax-efficient. Some employers also contribute to home wallbox installation costs. If employees charge at work, providing electricity as a workplace benefit can be tax-free in qualifying circumstances. Always confirm current HMRC guidance before setting your policy.

What about hybrid company cars as an alternative?

Plug-in hybrids sit in a middle BIK band and can work well for high-mileage drivers or employees without reliable home charging. The key caveat is that real-world efficiency depends on how often the car is actually plugged in. An employee who charges regularly gets the benefit. One who rarely charges is driving an inefficient petrol car. PHEVs are a practical bridge, not a long-term strategy.

Whether you are moving one car or an entire fleet, the practical side matters as much as the tax advantage. Make sure employees have access to the right charging setup before the cars arrive, whether that is a home wallbox, workplace charger, or both. Use our reg checker to find the right charging cable for any EV on your fleet, and browse our full range of Type 2 charging cables for workplace and home installation. Getting the infrastructure right from day one makes the transition far smoother.