There are two ways of claiming for motor expenses if you are below the VAT threshold, one based on business mileage and the second on actual expenses. Mileage is usually more tax efficient and is much simpler to track. If you wish to compare the claims details on how to calculate the deduction using both methods are below. In addition, you can also claim for business parking, congestion charges, tolls and the interest on loans used to purchase the vehicle. Motoring fines for parking, speeding etc are not allowable.