The Internal Revenue Service has increased the 2026 standard business mileage reimbursement rate from 72.5 cents to 76 cents per mile, effective July 1, 2026. The 3.5-cent increase was driven primarily by higher fuel prices and marks only the fifth mid-year adjustment since 2000. While fuel costs prompted the change, the IRS mileage rate also accounts for vehicle ownership expenses such as maintenance, insurance, depreciation, and financing.

For fleet operators, the updated rate serves as an important benchmark for organizations that reimburse employees for business use of personal vehicles. While employers are not required to adopt the new IRS rate, fleets should review their reimbursement policies to determine whether adjustments are appropriate. The mid-year increase also presents an opportunity to evaluate whether a standard cents-per-mile reimbursement remains the best fit or if alternatives such as fixed and variable rate (FAVR) programs, vehicle allowances, or company-provided vehicles would better align with current operating costs and driver needs.