What are the 2023 mileage reimbursement rates?

The Internal Revenue Service issued the 2023 optional standard mileage rates used to calculate the deductible costs of operating an automobile for business, charitable, medical or moving purposes.
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Beginning on Jan. 1, 2023, the standard mileage rates for the use of a car (also vans, pickups or panel trucks) will be:

• 65.5 cents per mile driven for business use, up 3 cents from the midyear increase setting the rate for the second half of 2022.
• 22 cents per mile driven for medical or moving purposes for qualified active-duty members of the Armed Forces, consistent with the increased midyear rate set for the second half of 2022.
• 14 cents per mile driven in service of charitable organizations; the rate is set by statute and remains unchanged from 2022.

 
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, such as gas and oil. The charitable rate is set by law.
 
Taxpayers always have the option of calculating the actual costs of using their vehicle rather than using the standard mileage rates.

A taxpayer may not use the business standard mileage rate for a vehicle after claiming accelerated depreciation, including the Section 179 expense deduction, on that vehicle. Likewise, the standard rate is not available to fleet owners (more than four vehicles used simultaneously). Details on these and other special rules are in Revenue Procedure 2019-46, the instructions to Form 1040 and various online IRS publications including Publication 17, Your Federal Income Tax.

Besides the standard mileage rates, Notice 2023-03, posted on IRS.gov, also includes the basis reduction amounts for those choosing the business standard mileage rate, as well as the maximum standard automobile cost that may be used in computing an allowance under a fixed and variable rate plan.