How are expenses calculated?
There are statutory approved mileage rates available if you use your own car for business journeys.
From 6th April 2011
First 10,000 miles in the tax year - 45p per mile
Each additional mile thereafter - 25p per mile
Up to 5th April 2011
First 10,000 miles in the tax year - 40p per mile
Each additional mile thereafter - 25p per mile
If your employer pays a mileage rate below the statutory rates, you can claim for the difference.
You are only taxable on any amount paid in excess of the approved rates.