New tests and new car benefit percentages

As part of its drive to encourage green motoring, the government has introduced a new emissions test, as well as new car benefit percentages. The scale of charges for working out the taxable benefit for an employee who has use of an employer provided car is computed by reference to bands of CO₂ emissions multiplied by the original list price of the vehicle. The maximum charge is capped at 37% of the list price of the car.

In 2017, the government announced that cars registered from April 2020 will be taxed based on the Worldwide harmonised Light vehicles Test Procedure (WLTP). Legislation has now been passed to amend the previously planned benefit percentages for 2020/21 through to 2022/23.

• All zero emission cars will attract a reduced percentage of 0% in 2020/21 and 1% in 2021/22, before returning to the planned 2% rate in 2022/23.
• For cars registered before 6 April 2020, the current test procedure will continue to apply and there are no further changes to percentages previously set for 2020/21. These rates will be frozen at the 2020/21 level for 2021/22 and 2022/23.
• For cars first registered from 6 April 2020, most rates will reduce by 2% in 2020/21 before returning to planned rates over the following two years, increasing by 1% in 2021/22 and 1% in 2022/23.

The WLTP aims to be more representative of real-world driving conditions, compared to the current test known as the New European Driving Cycle. The government estimates that reported CO₂ values may be, on average, about 2 – 25% higher under the WLTP when compared to the current test.