Note: Benefits and Allowances 2021: The type of mileage allowance offered for travel in a company car. From 1 June 2021, the HMRC rates for travel in a company car range between: 11p and 19p per mile for petrol vehicles; 9p and 13p per mile for diesel vehicles; and 8p and 14p per mile for liquified petroleum gas vehicles. This XpertHR survey was conducted in May 2021.