Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what estimate her Department has made of the cost to the public purse of Benefit-in-Kind rates for zero-emission company cars.

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(opens in a new tab)

The Government annually reviews the rates and thresholds of taxes and reliefs to ensure that they are appropriate and reflect the current state of the economy. The Chancellor makes decisions on tax policy at fiscal events in the context of the public finances.