On June 23, 2011, the IRS announced an increase in the optional standard mileage rates for the final six months of 2011. Taxpayers may use the optional standard rates to calculate the deductible costs of operating an automobile for business and other purposes.
In recognition of recent rise in the price of gasoline, the IRS increased the rate to 55.5 cents a mile for all business miles driven from July 1, 2011, through December 31, 2011. This is an increase of 4.5 cents from the 51 cent rate in effect for the first six months of 2011, as set forth in Revenue Procedure 2010-51. This is a special adjustment for the final months of 2011; normally, the IRS updates the mileage rates only once a year in the fall for the next calendar year.
The new six-month rate for computing deductible medical or moving expenses will also increase by 4.5 cents to 23.5 cents a mile, up from 19 cents for the first six months of 2011. The rate for providing services for charitable organizations is set by statute, not the IRS, and remains at 14 cents a mile.