2025 Mileage Rate Gsa Increase. 70 cents per mile driven for business use (3 cent increase from 2024) 21 cents. The irs increased the optional standard mileage rate used to calculate the deductible costs of operating a vehicle for business to 70 cents per mile driven, up 3 cents.
The irs’s new mileage rates for 2025 bring good news for drivers, especially those using their vehicles for business purposes. 2025 per diem rates are now available.