Irs Standard Mileage Rate 2024 Forecast. The irs has issued its standard mileage rates for 2024, marking an increase. Washington — as educators gear up for the new school year, the irs reminds schoolteachers that the maximum deduction for classroom expenses in 2024.

The standard mileage rate is 21 cents per mile for use of an automobile: The irs bumped up the optional mileage rate to 67 cents a mile in 2024 for business use, up from 65.5 cents for 2023.