Mileage claims are worked out by multiplying the rate per mile for the vehicle you used, by the number of business miles you travelled in it. Use our free mileage calculator to see how much you can claim against your tax bill.
The rate you can claim per mile depends on what type of vehicle you used for your journey, so use the buttons to select the correct option before entering the number of miles. Don’t include any detours to the drive-through.