Company Car Taxation

The company car tax rules and how legislation encourages businesses to acquire more environmentally-friendly vehicles.

For many, the company car remains an essential business requirement and an important benefit in attracting, rewarding and retaining staff.

Company Car Benefit

A company car is normally a taxable benefit for an employee or a director.  The company car benefit charge for a full year is calculated by multiplying the price of the car for tax purposes (in most cases, its list price plus accessories less capital contributions) by the 'appropriate percentage'.

The appropriate percentage used to calculate the benefit is based on the car's CO2  emissions level.  The benefit charge is then subject to tax at the effective tax rate of each individual.  Employers pay class 1A national insurance contributions (NICs) on the benefit at 13.8%.

The annual taxable value of the benefit remains up to a maximum of 35% of the list price of the car when first registered.  A common mistake is to assume the calculation is based on the second hand purchase price of the depreciated value of the car, which could yield a much lower benefit in kind value.

The list price includes the full cost of the car, car tax (if applicable), VAT and delivery charges.  There is no cap on the list price of the car for calculating the benefit.  The list price of most accessories must be included whether fitted when new or subsequently.

There is a 3% supplement for cars running solely on diesel fuel, subject to the 35% cap.  Employees and directors who are provided with a company car that is powered solely be electricity will not have to pay tax on the benefit.  Additionally, cars first registered before January 1998, for which there are no reliable CO2 emissions data, are taxed according to their engine size.

Fuel Benefit Charge

There is an additional benefit charge applied to a standard value of £21,700 where the employers also pays for any fuel used privately by the employee.  This charge is based on the same CO2 car benefit percentages referred to above.

There is no fuel benefit charge for vehicles powered solely by electricity.

Employee Contributions

The value of the benefit is reduced accordingly on a pound-for-pound basis where the employee is required to pay for the private use of a car.

By contrast, it is 'all or nothing' for the fuel benefit charge.  This means the full tax charge on the value of the benefit is due unless the employee reimburses all private fuel costs.

HMRC publishes advisory fuel only rates which will be accepted either for employers reimbursing employees for the cost of fuel for business mileage, or for employees reimbursing employers for the cost of fuel for private mileage in a company car.  Alternative rates may be negotiated.

Advisory fuel-only mileage rates from 01/09/2014


Engine Capacity Petrol
Up to 1400cc 14p
1401cc-2000cc 16p
Over 2000cc 24p

Engine Capacity


1600cc or less 11p
1601cc-2000cc 13p
Over 2000cc 17p











Tax Payable

Income tax at the basic, higher or additional rate is chargeable depending on the employee's rate of pay.  The tax is usually collected under the PAYE system by appropriate adjustment of the employee's tax code.

For the benefit to be attractive, the employee must pay less in extra tax than it would cost them to run their own car out of their taxed income.

These are examples of the 2014/15 tax costs to an employee of a company car during a whole tax year.

BASIC Tax Rate 20%


List Price CO2 emission g/km Petrol Diesel


    Car (£) Fuel (£) Car (£) Fuel (£)
£13,000 164 650 1085 728 1215
£18,000 196 1152 1389 1260 1519
£25,000 240 1750 1519 1750 1519








HIGHER Tax Rate 40%


List Price CO2 emission g/km Petrol Diesel


    Car (£) Fuel (£) Car (£) Fuel (£)
£13,000 164 1300 2170 1456 2430
£18,000 196 2304 2778 2520 3038
£30,000 240 4200 3038 4200 3038










List Price CO2 emissions g/km Petrol Diesel


    Car (£) Fuel (£) Car (£) Fuel (£)
£13,000 164 1463 2441 1638 2734
£18,000 196 2592 3125 2835 3418
£40,000 240 6300 3418 6300 3418








Business Use Of An Employee's Own Car

It is normal practice for employees to be reimbursed per mile for business use of their own cars.  A statutory system of tax and NICs free mileage rates applies for business journeys in employees' own vehicles.

Vehicle Type First 10,000m in tax year Each mile thereafter
Cars and vans 45p p/m 25p p/m
Motorcycles 24p p/m 24p p/m
Bicycles 20p p/m 20p p/m








Excess mileage payments should be reported on form P11D and taxed accordingly.  The lower rate for more than 10,000 business miles only applied to income tax.  The NIC rate remains at 45p for any number of miles incurred.

Employees who travel on business and carry fellow employees as passengers can be reimbursed a further 5p per passenger tax free, provided it is also a business journey for the passengers.  No claim can be made if the employer does not pay passenger payments.

Tax-Free Benefits

Car Parking

The provision of a car parking space at or near the employee's place of work is not an assessable benefit.

Pool Cars

There is usually no tax for using a pool car, provided it meets specific conditions.  This is one where:

  1. The car is made available to, and actually used by, more than one employee.
  2. Private use is merely incidental to the business use.
  3. It is not normally used by one employee to the exclusion of all others.

A pool car must also not normally be kept overnight at or near an employee's home.

Lower-Paid Employees

The provision of a car for an employee other than a director who is paid at a rate below £8,500 per year (including the value of benefits) does not attract any charges to income tax.  There is also no charge on fuel for private use provided to such employees.

Compliance Pointers

Accurate and up-to-date records of all business mileage undertaken in private vehicles must be maintained at all times.  In the case of company cars, all fuel receipts should be retained as proof of actual costs incurred.  Employers should ensure full pool car mileage records are kept to avoid unexpected tax bills in the event of a PAYE inspection.