WASHINGTON — The Internal Revenue Service today issued the 2013 optional standard mileage rates used to calculate the deductible costs of operating an automobile for business, charitable, medical or moving purposes. Beginning on Jan. 1, 2013, the standard mileage rates for the use of a car (also vans, pickups or panel trucks) will be: 56.5 cents per mile for business miles driven 24 cents per mile driven for medical or moving purposes 14 cents per mile driven in service of charitable organizations The rate for business miles driven during 2013 increases 1 cent from the 2012 rate.  The medical and [...]