Company cars represent one of the most valuable employee benefits available, but the tax treatment of this benefit significantly affects both the employee's take-home pay and the employer's National Insurance costs. Understanding the benefit in kind system helps employees make informed choices between company car options and cash alternatives.

How Benefit in Kind Tax Works

The benefit in kind value of a company car is calculated by multiplying the vehicle's P11D price by the applicable BIK percentage rate. The P11D price is the manufacturer's recommended retail price including VAT and delivery charges. The BIK percentage rate is determined by the vehicle's CO2 emissions and fuel type, ranging from 2 percent for pure electric vehicles to 37 percent for high-emission vehicles. The resulting BIK value represents the annual taxable benefit, which is added to the employee's income and taxed at their marginal income tax rate.

2026 BIK Rates by Fuel Type

The government sets BIK rates annually. For the 2025-2026 tax year, pure electric vehicles attract the lowest BIK rate at just 2 percent of the P11D price. Plug-in hybrids with CO2 emissions between 1 and 50 grams per kilometre attract 18 to 19 percent depending on their exact emissions figure. Standard petrol and diesel vehicles attract 27 to 28 percent depending on their CO2 emissions, with rates increasing progressively through the bands.

The practical impact is significant. A pure electric vehicle with a 45,000 GBP P11D price creates an annual BIK value of 900 GBP. At the higher rate tax band of 40 percent, the annual tax charge is 360 GBP. An equivalent petrol vehicle at the same P11D price with a 27 percent BIK rate creates a 12,150 GBP BIK value and an annual tax charge of 4,860 GBP, a difference of 4,500 GBP per year. Related: Company Car Tax Benefit India | Company Car Tax Benefit India | UK Benefit in Kind Tax 2026 | Company Car Tax UK 2026.

Employer National Insurance Contributions

Employers pay Class 1A National Insurance contributions at 13.8 percent on the BIK value of company cars. For the same 45,000 GBP pure EV example, the employer's annual Class 1A NIC cost is only 124 GBP. For the equivalent petrol vehicle, the employer NIC cost is 1,677 GBP. This significant difference in employer costs makes pure electric company cars substantially more attractive from an employer perspective as well as an employee perspective.

Company Car vs Cash Allowance

Many employees have the choice between taking a company car or receiving a cash allowance instead. The financial comparison depends on individual tax circumstances. Generally, pure electric company cars at the 2 percent BIK rate offer exceptional value compared to cash, providing tens of thousands of pounds worth of vehicle benefit for a relatively small annual tax charge. However, the decision should account for personal usage patterns, fuel costs, and the value of the cash alternative available.

Official Resources: GOV.UK Check Vehicle Tax | GOV.UK Vehicle Tax | DVLA Online | MOT Check

Frequently Asked Questions

Q: How much is car tax (VED) in the UK 2026?
Car tax rates in the UK depend on your vehicle's CO2 emissions and list price. Standard rates start from £190 per year for petrol and diesel cars, with zero-rated VED for EVs. First-year rates vary from £0 to £2,605 depending on emissions. Additional premiums apply for vehicles over £40,000.

Q: How do I check if my car is taxed online?
You can check your vehicle's tax status for free on the Gov.uk website at gov.uk/check-vehicle-tax. You'll need your vehicle's registration number (number plate). You can also check via the Motor Insurance Database to verify road tax and insurance status simultaneously.

Q: Can I get a refund on car tax if I sell my vehicle?
Yes — if you sell or scrap your vehicle, you can claim a refund on any full months of remaining road tax. Contact DVLA with the V11 reminder letter or apply online at gov.uk. Refunds are usually processed within 4-6 weeks.

Q: Is road tax refund available when transferring ownership?
No — road tax does not transfer with the vehicle. When you sell your car, the tax is automatically cancelled and any remaining months are refunded to you by DVLA. The new owner must tax the vehicle immediately. As a buyer, always verify the vehicle's tax status before purchasing.

Q: What is the luxury car tax threshold in the UK 2026?
The additional rate for vehicles over £40,000 (list price) adds £410 per year to standard VED rates for years 2-6 of registration. This surcharge brings the annual cost for high-emission vehicles over £40,000 to around £600-690 per year. Pure EVs under £40,000 pay zero VED.