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.
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.
Note: These calculations are only for illustrative purposes and are not a substitute for professional advice.