Per Diem 2024 Mileage Rate. Companies may prefer per diem for its.  — the new rate is set at 65.5 cents per mile, an adjustment from the previous year's rate, reflecting changes in operational costs, such as fuel prices and vehicle.

The fy 2025 rates are not the default rates until october 1, 2024.  — fy 2024 per diem rates for arizona.