2024 Mileage Rate Business. Increase in business mileage rate: Effective january 1, 2024, the irs mileage rate for business use is 67 cents per mile.
67 cents per mile for business purposes. On december 14, 2023, the internal revenue service (irs) issued the 2024 optional standard mileage rates used to calculate the deductible costs of operating an automobile.