Company car and fuel benefit-in-kind The taxable benefit on your company car is based on the CO2 emissions of the car. These calculations are for the 2020/21 tax year. List Price (£): The list price of the car and the cost of any optional extras. CO2 emissions (gm/km): The approved CO2 emissions of the vehicle - you can look it up on the offical government website Diesel Supplement? No Yes The Diesel Supplement applies to diesel cars that (i) do NOT meet the Euro 6d emissions standard OR (ii) were registered BEFORE 1 September 2017. Diesel Electric hybrids are exempted from the supplement. Electric Range: Please enter the electric range if applicable. Private fuel: Does your employer pay for any private fuel for a company car? Registered on/after 6th April 2020? Calculate Note: These calculations are only for illustrative purposes and are not a substitute for professional advice.