What Is the IRS Standard Mileage Rate?
The standard mileage rate is an amount per mile, set by the IRS, that US taxpayers can use to calculate deductible costs of operating a vehicle for business, medical, or charitable purposes instead of tracking actual expenses. Many employers also use it as a benchmark for reimbursing employees who drive their own cars for work.
How It Is Used
Deduction or reimbursement = business miles driven × standard mileage rate. The rate is announced by the IRS, typically once a year, and occasionally adjusted mid-year.
Business, Medical, and Charity Rates
The IRS publishes separate rates for business use, medical or moving purposes, and charitable driving. The charitable rate is fixed by law.
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Last updated: September 27, 2026. This definition is for general educational purposes only. It is not financial, investment, tax, legal, or medical advice, and it does not recommend any product or course of action. For decisions about your own situation, consult a qualified professional.