Definition
A vehicle provided by an employer for business and often personal use by an employee. The provision of a company car for private use creates a taxable benefit in kind, calculated based on the car's list price and CO2 emissions.
UK Context
The taxable benefit is calculated using the car's P11D value (list price including options and delivery) multiplied by the appropriate percentage based on CO2 emissions. For 2025/26, electric vehicles have a benefit-in-kind rate of 2%. Employers must report company cars on P11D forms and pay Class 1A NIC on the benefit value.
Best Practices
- Consider electric or low-emission vehicles to minimise the benefit-in-kind tax burden
- Report company car changes to HMRC promptly using P46(Car) forms
- Maintain clear records of business versus private mileage for each company car
Frequently Asked Questions
How is the company car tax calculated?
The taxable benefit is the car's P11D value multiplied by the benefit-in-kind percentage (based on CO2 emissions). The employee pays income tax on this amount at their marginal rate. For example, a 30,000 pound car with a 25% BIK rate creates a 7,500 pound taxable benefit.
Are electric company cars tax-efficient?
Yes, electric vehicles have the lowest benefit-in-kind rate at 2% for 2025/26, making them significantly more tax-efficient than petrol or diesel alternatives. A 40,000 pound electric car creates a taxable benefit of just 800 pounds per year.