Mileage Rate 2025 Washington State Gov. Calculate your 2025 mileage reimbursement quickly and accurately. For 2025, the standard mileage rate is the following:

Washington — the internal revenue service today issued the 2025 optional standard mileage rates used to calculate the deductible costs of operating an automobile for business, charitable,. Gsa establishes the rates that federal agencies use to reimburse their employees for lodging and meals and incidental expenses incurred while.