The following table summarizes the optional standard mileage rates for employees, self-employed individuals, or other taxpayers to use in computing the deductible costs of operating an automobile for business, charitable, medical, or moving expense purposes.

The standard mileage rate for business is based on an annual study of the fixed and variable costs of operating an automobile; the standard rate for medical and moving purposes is based on the variable costs as determined by the same study. Runzheimer International, an independent contractor, conducted the study for the IRS.

The mileage rate for charitable miles is set by law.

A taxpayer may not use the business standard mileage rate for a vehicle after using any depreciation method under the Modified Accelerated Cost Recovery System (MACRS), after claiming a Section 179 deduction for that vehicle, for any vehicle used for hire or for more than four vehicles used simultaneously.

Revenue Procedure 2007-70 contains additional information on these standard mileage rates.