Company Car Tax Explained: Electric Cars, Benefit in Kind and Limited Company Costs
BRITVEX UK · Tax Planning · Practical UK guidance
Reviewed against current UK guidance: 26 October 2026 · Figures depend on the applicable tax year and circumstances
Quick answer: The tax cost of a company car in the UK is not simply its purchase price or monthly lease payment. Where a director or employee can use the car privately, Benefit in Kind (BiK) can create personal Income Tax and an employer Class 1A National Insurance liability. The figure depends on the car’s list price, its CO₂ emissions, applicable tax-year percentage and the worker’s marginal tax rate. Electric cars can have significantly lower BiK percentages than many petrol or diesel cars, but purchase relief, VAT, charging, insurance and overall cash cost must also be considered.
Company car or personal car: what should a director compare?
A director considering a vehicle has several choices: a company buys the car, a company leases it, the director uses a personally owned car and claims qualifying business mileage, or the business uses a commercial vehicle such as a van. Each route creates different accounting records, tax consequences and cash commitments.
A company-owned car is not automatically tax-efficient just because it is “paid for by the business”. Private availability usually creates a taxable benefit. For tax purposes, ordinary commuting is generally private travel. Even a vehicle purchased exclusively for a director can create a benefit if it is available for their private use.
Begin with the real questions: Who owns the car? Is private use allowed? What is its list price? What type of vehicle is it? How will it be financed? Who pays for charging or fuel? What is the company’s profit position? Britvex’s Payroll & PAYE team and Corporation Tax service can examine these together.
How company car Benefit in Kind is calculated
The typical approach is to multiply the relevant car list price (P11D value, after statutory adjustments) by the appropriate percentage for that tax year. This produces the taxable benefit value. The worker then pays Income Tax on that benefit according to their own tax circumstances.
Illustrative calculation: A new zero-emission company car has a taxable list price of £42,000. For 2026/27 the appropriate percentage for zero-emission cars is 4%, giving a £1,680 annual taxable benefit. If the director pays tax on the entire benefit at 20%, the illustrative personal tax is £336 a year. At 40%, it would be £672 a year. An employer paying 15% Class 1A NIC on the same £1,680 benefit would have an illustrative £252 employer cost. Actual figures can be adjusted by availability periods, contributions, tax residence and special rules.
This example does not mean an EV “costs £336 per year”. The company still pays the purchase or lease cost, insurance, charging and maintenance, as well as applicable tax and employer costs. Use HMRC’s company-car tax guide for the statutory basis.
Electric, hybrid, petrol and diesel company car BiK rates
For the 2026/27 UK tax year, the HMRC appropriate percentage for a zero-emission electric car is 4%. It is scheduled to rise to 5% in 2027/28, 7% in 2028/29 and 9% in 2029/30 under currently legislated rates. Other vehicles use emission bands; for many hybrid cars with 1–50g/km, the electric range matters. Petrol/diesel cars can have much higher percentages.
| Vehicle category | How the tax percentage is determined | Practical consideration |
|---|---|---|
| Zero-emission electric car | 4% for 2026/27 | Check the taxable list price, future increases and charging/funding arrangements |
| Plug-in hybrid | Emissions plus certified electric-only range | Similar-looking hybrids can have different BiK results |
| Petrol car | CO₂ emissions band and relevant rules | Often a materially higher benefit percentage than a zero-emission car |
| Diesel car | CO₂ band, with possible diesel supplement | Check the precise vehicle emissions standard and statutory cap |
| Company van | Separate van benefit rules | A vehicle called a van commercially may be a car under tax law, or vice versa |
Do not rely on a dealer’s single “BiK rate” without confirming the correct tax year and the vehicle’s details. The 2026/27 official percentage table and rates through 2030 should be reviewed whenever the contract or vehicle changes.
Comparing an electric company car with a petrol company car
Assume two company cars each have an illustrative P11D value of £40,000. The zero-emission car’s BiK percentage for 2026/27 is 4%, while a particular petrol vehicle might fall in a 30% band depending on its emissions. These are illustrative comparative assumptions, not a statement that every petrol car has 30% BiK.
| Comparison | Electric (4%) | Illustrative petrol (30%) |
|---|---|---|
| P11D value | £40,000 | £40,000 |
| Annual taxable benefit | £1,600 | £12,000 |
| Illustrative tax at 40% | £640 | £4,800 |
| Illustrative Class 1A NIC at 15% | £240 | £1,800 |
The annual difference in this scenario can be large. But a complete decision requires the purchase or lease price, depreciation, financing interest, Corporation Tax relief, insurance, energy cost, mileage, personal use, VAT, employer NIC, resale value and charging arrangements. A more expensive EV can still cost the company more overall even if the BiK is lower.
Buying an electric company car: capital allowances
Capital allowances are one reason directors consider a company-owned electric car. A new and unused zero-emission car may qualify for 100% first-year allowances if the statutory conditions and dates are met. HMRC confirms that the first-year allowance has been extended to 31 March 2027 for Corporation Tax purposes. A second-hand electric car does not simply receive the same 100% treatment.
Full expensing and Annual Investment Allowance generally exclude cars, so a company must apply the specific business-car allowance rules instead of claiming all capital reliefs interchangeably. For a leased car, the company’s deduction and the vehicle owner’s capital-allowance position can be different. See HMRC business cars guidance and our dedicated Capital Allowances guide on Britvex.com for the wider asset rules.
A 100% deduction is not a 100% subsidy. If a qualifying £35,000 car receives a full deduction and the actual marginal Corporation Tax effect is 25%, the illustrative reduction in tax could be £8,750, subject to all facts and conditions. The business still funds the vehicle, and personal BiK and employer obligations may arise.
Leasing a company car: tax and VAT treatment
Leasing can reduce upfront cash needs but does not eliminate the company’s ongoing cost. The relevant tax treatment can depend on whether the agreement is an operating lease, hire purchase or another form of financing; the emissions and vehicle classification may affect deductions or lease restrictions.
VAT on car leasing is especially fact-sensitive. In many ordinary mixed private/business-use lease arrangements, 50% of VAT on the lease charge is blocked, subject to exceptions and the precise contractual arrangements. Recovery of VAT on a purchased car is often restricted where private use is available; fuel and running costs need separate assessment. A VAT-registered business should obtain detailed advice rather than assume every VAT amount on a vehicle invoice is reclaimable.
Ask for a single comparison schedule showing upfront deposit, monthly lease charge, VAT treatment, maintenance, insurance, total contract cost, mileage restrictions, employer Class 1A NIC and anticipated end-of-term charges.
EV charging: workplace, home and public charging
Charging at the workplace, home charging reimbursement and charging cards are not necessarily taxed identically. The treatment depends on who supplies the electricity, how reimbursement works, whether the car is company owned and what can be documented. A company should have an employee charging policy and distinguish business mileage records from unsupported fixed estimates.
If the company installs charging equipment, different business-expense or capital-allowance considerations may arise. The 100% first-year allowance for qualifying electric vehicle charge points has also been extended under applicable statutory provisions, but claim dates and exact asset eligibility must be checked.
Fuel benefits, road tax and the expensive-car supplement
Where the employer provides private petrol or diesel fuel, a separate fuel benefit charge may arise; it is not automatically included in the car’s ordinary BiK calculation. Fuel and electricity can have different treatment, and employers should avoid an informal “all fuel on the company card” arrangement.
Electric vehicles are no longer generally exempt from Vehicle Excise Duty: those rules changed in April 2025. For 2026/27, an electric car registered on or after 1 April 2025 generally has a £10 first-year rate and then a £200 standard annual rate, before considering any expensive-car supplement. The additional supplement can be relevant to zero-emission cars registered from 1 April 2025 where list price exceeds £50,000. Review official VED guidance.
This tax should be distinguished from the company-car Benefit in Kind charge; it is entirely possible to owe both vehicle tax and personal car-benefit tax.
Reporting company cars to HMRC: P11D, payroll and Class 1A NIC
Company cars require accurate employer records of the vehicle, dates available, list price, contributions and changes. Depending on the period and reporting approach, employers use the benefit reporting framework and account for Class 1A National Insurance. Directors should not confuse a car’s availability date with the date the finance contract was signed.
HMRC’s mandatory real-time payrolling of certain Benefits in Kind is being phased in from 6 April 2027, including company cars and car fuel in the initial cohort. This means processes and payroll software need review before that date; it is not a reason to assume every benefit is already reported in identical fashion in October 2026. See HMRC’s September 2026 interim guidance.
Britvex can coordinate records, employer payroll obligations and company tax computations through Payroll & PAYE, Annual Accounts and Tax Planning.
When is a personal car more sensible?
For some directors, particularly those with modest business mileage and frequent personal use, owning the car personally and making appropriate company business-mileage claims may be simpler. The company should retain travel records and apply the correct approved rates and statutory restrictions; private commuting cannot be relabelled as business travel merely because it occurs before a customer meeting.
However, a personal-car arrangement may be less appropriate where business mileage is very high, or where employer-provided EV arrangements produce a genuinely favourable combined company/personal cost. No one arrangement wins in every circumstance.
Company car checklist before signing a deal
- Identify the vehicle type and confirm its tax classification.
- Obtain the P11D/list price including taxable accessories.
- Confirm official CO₂ emissions, electric range and registration date.
- Compare the correct BiK percentages across the expected ownership/lease period.
- Calculate personal Income Tax and employer Class 1A NIC using realistic rates.
- Compare upfront purchase, lease, maintenance and insurance costs.
- Confirm capital allowance eligibility and timing, especially for a new EV.
- Review VAT deduction or input tax restrictions.
- Establish who pays for home, workplace and public charging or fuel.
- Document private availability, the policy and record keeping.
- Check the upcoming payroll reporting changes.
- Compare the proposal with personally owned vehicle/business mileage alternatives.
When Britvex can help
A company-car decision is a connected Corporation Tax + Payroll + personal tax decision. Britvex can review the business structure, the vehicle quotation, the director’s tax position and the expected bookkeeping, then calculate lawful options and record the chosen arrangement. Specialist finance, insurance or legal advice may still be necessary where outside accountancy scope.
For a structured review, start through the Britvex Client Portal or contact the Tax Planning team. Existing clients can submit their vehicle quotation and company details securely for review.
Frequently asked questions
How is UK company car tax calculated?
Broadly, the relevant list price/P11D value is multiplied by the appropriate benefit percentage for the tax year. The resulting taxable benefit is taxed on the employee or director at their applicable Income Tax rates.
What is electric company car BiK in 2026/27?
For a zero-emission company car the appropriate percentage is 4% in 2026/27, subject to applicable statutory details and the car’s P11D value.
Is a company electric car free of personal tax?
No. Its Benefit in Kind percentage may be low compared with many petrol or diesel cars, but a taxable benefit can still arise where private use is available.
What is the Benefit in Kind rate for 2027/28 and later?
Under current published rules, the zero-emission appropriate percentages are 5% in 2027/28, 7% in 2028/29 and 9% in 2029/30. Check future changes before signing a long agreement.
Can a limited company deduct the full cost of an electric car?
A qualifying new and unused zero-emission car may be eligible for a specific 100% first-year capital allowance within the applicable dates. Second-hand cars and leased cars follow different rules.
Does a company car generate employer National Insurance?
Generally, a taxable company car benefit can create employer Class 1A National Insurance obligations. Apply the applicable year’s rate to the taxable benefit value rather than to the car purchase price.
Can the company reclaim VAT on a company car?
Not automatically. VAT recovery on purchases is often restricted when private use is available, and many mixed-use leases are subject to a 50% input-tax block on lease charges, with exceptions.
What happens if I charge my electric company car at home?
The treatment depends on the charging arrangement, reimbursement, whether it is a company car and HMRC rules. Keep receipts, charging logs and a written employer policy.
Is travelling from home to the office business mileage?
Ordinary commuting is generally treated as private travel, so it cannot be counted as qualifying business mileage merely because it is work-related.
Can directors use a personal car instead?
Yes. Personal ownership with lawful business mileage claims may be preferable in some cases, depending on mileage, private use, tax rates and the total company cost.
Will company car reporting change from April 2027?
HMRC plans mandatory payrolling of certain benefits in kind, including company cars and car fuel, from 6 April 2027. Employers should review payroll and benefit-data processes before implementation.
Can Britvex compare two company car proposals?
Britvex can compare relevant Benefit in Kind, employer NI, Corporation Tax, VAT, accounting and total-cost implications using the actual quotations and director circumstances.
Get your UK tax position reviewed by Britvex
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