The IRS has announced the following standard mileage rates for 2013:
- 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 moving rate is also up 1 cent per mile from the 2012 rate.
The standard mileage rate for business is based on an annual study of the fixed and variable costs of operating an automobile. The rate for medical and moving purposes is based on the variable costs.
That info is from Notice 2012-72