new york mainstreet the internal revenue service has issued the 2015 optional standard mileage allowance rates used to claim a tax deduction for driving an automobile for business charitable medical or moving purposes beginning on january 1 2015 the standard mileage rates for the use of a car will be57 5 cents per mile for business miles up 1 5 cents from 2014 23 cents per mile for medical or moving miles down 0 5 cents from 2014 14 cents per mile driven in volunteer service of charitable organization unchangedew york mainstreet the internal revenue service has issued the 2015 optional standard mileage allowance rates used to claim a tax deduction for driving an automobile for business charitable medical or moving purposes beginning on january 1 2015 the standard mileage rates for the use of a car will be