There are two ways to reduce your tax bill on a company car – choose one with a lower list price and / or one in a lower tax scale. Company cars are taxed on their list price (not transaction price), excluding road tax and registration fee. This is recorded on a form called P11D and includes optional equipment, so think hard before loading up your car with all those extras ! Adding Leather, Metallic paint and an ‘auto’ box onto your Mercedes E220 Classic for instance will cost you more than £800 in extra tax over 3 years.
As for the tax brackets, cars are graded into percentage bands on their official carbon dioxide (CO2) emissions and their fuel type; the lower the percentage banding, the lower the tax bill. There are discounts that use alternative fuels and a 3% surcharge for diesels that fail to meet the latest Euro IV emission regulations.
You must add 3% to the tax band of any diesel which does not meet Euro IV emissions standards. These will become compulsory for new cars from Spring 2005 and all models 6 months after that. Any diesel which complies now is exempt from the penalty.