Effective January 1, 2020, the optional IRS standard mileage rates for use of a car, van, pickup, or panel truck are as follows:

57.5¢ (a decrease of 0.5¢ from 2019) Per mile for business use
17¢ (a decrease of 3¢ from 2019) Per mile – medical or moving purposes
14¢ (no change from 2019) Per mile – in service of charitable organizations

The standard mileage rates for charitable organizations remained unchanged from 2019, with a 3 cent decrease for medical or moving purposes and a 0.5 cent decrease per mile for business use.  The difference between the optional standard mileage rate for business use versus medical or moving purposes is that, while the medical and moving rate takes into account variable costs, the business rate is calculated from an annual study of fixed and variable costs. 

Please refer to the IRS News Release and the IRS Notice 2020-05 published on December 31, 2019, for additional details. See how the 2020 optional standard mileage differs from the 2019 Optional Standard Mileage Rate