Standard Mileage Rate

For 2005, the standard mileage rate for the cost of operating your car, van, pickup, or panel truck is increased to 40.5 cents a mile for business miles driven during the period January 1, 2005 to August 31, 2005, and to 48.5 cents a miles for business miles driven during the period September 1, 2005, through December 31, 2005.