The scale of charges for working out the taxable benefit for an employee who has use of an employer provided car are now announced well in advance. Most cars are taxed by reference to bands of CO2 emissions multiplied by the original list price of the vehicle. Currently there is a 3% diesel supplement. The maximum charge is capped at 37% of the list price of the car.
In the current tax year there is a 9% rate for cars with CO2 emissions up to 50gm/km. From 6 April 2018 this will be increased to 13%, and from 6 April 2019 to 16%.
For other bands of CO2 emissions there will generally be a 2% increase in the percentage applied by each band from 6 April 2018. For 2019/20 the rates will increase by a further 3%.
The government previously announced that they will legislate to increase the diesel supplement from 3% to 4%. This will generally apply to all diesel cars (unless the car is registered on or after 1 September 2017 and meets the Euro 6d emissions standard) but the maximum is still 37%. There is no change to the current position that the diesel supplement does not apply to hybrid cars. The change will have effect from 6 April 2018.