Question to the HM Treasury:

To ask the Chancellor of the Exchequer, if her Department has made an estimate of of the behavioural impact of the 3 percent Benefit-in-Kind rate for zero-emission company cars, including (a) the number of additional EVs purchased by fleets and (b) the fiscal implications of those behavioural effects.

The Government publishes annual statistics on HMRC’s taxable benefits in kind for company cars and company car fuel. These reports document the number of benefit in kind recipients, the CO2 emissions of company cars and their total taxable value. The latest statistics for the tax year 2023-24 were published in June 2025, and are accessible here: https://www.gov.uk/government/statistics/benefits-in-kind-statistics-june-2025/benefit-in-kind-statistics-commentary-june-2025

Additionally, at Budget 2024 the Government announced new Company Car Tax rates for the years 2028-29 and 2029-30, which increase for both electric vehicles (EVs) and petrol/diesel vehicles, while still maintaining generous incentives to support EV take-up. The Tax Information and Impact Note (TIIN) published alongside Budget set out the expected economic, equalities and other impacts, and highlighted that overall the measure was expected to encourage the take-up of zero emission vehicles.