2017 Mileage Allowance
The IRS has released its standard mileage allowance for 2017.
IRS Notice 2016-79 says that for the 2017 tax year, the standard mileage rate is 53.5 cents per mile; the medical travel rate is 17 cents per mile; the rate for charitable-related travel remains 14 cents per mile.
https://www.irs.gov/pub/irs-drop/n-16-79.pdf
Notice 2016-79
The standard mileage rate for transportation or travel expenses is 53.5 cents per mile for all miles of business use (business standard mileage rate). See section 4 of Rev. Proc. 2010-51.
The standard mileage rate is 14 cents per mile for use of an automobile in rendering gratuitous services to a charitable organization under § 170. See section 5 of Rev. Proc. 2010-51.
The standard mileage rate is 17 cents per mile for use of an automobile (1) for medical care described in § 213, or (2) as part of a move for which the expenses are deductible under § 217. See section 5 of Rev. Proc. 2010-51.