The IRS has released the 2019 automobile mileage numbers in Notice 2019-02.

The standard rate for transportation or travel expense is 58 cents per mile for business use in 2019.  The standard rate for 14 cents per mile for use of an automobile for providing gratuitous services to a charitable organization and 20 cents per mile for medical expenses.  The 20 cent rate would also apply to moving expenses under §217, though for most taxpayers such a deduction is not available for 2019.

The Notice provides the following basis reduction amounts for vehicles used for business purposes:

For automobiles a taxpayer uses for business purposes, the portion of the business standard mileage rate treated as depreciation is 24 cents per mile for 2015, 24 cents per mile for 2016, 25 cents per mile for 2017, 25 cents per mile for 2018, and 26 cents per mile for 2019.