Gsa Mileage Rate 2024. Typically, gsa calculates per diem rates based on the average daily rate (adr) data from str/costar from the previous fiscal year from selected. The 2024 mileage reimbursement rates for gsa is based on the annual irs mileage rates.

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. August 1, 2024 by editorial board.