Mileage Rate 2024 Washington State Calculator. 14, 2023 washington — the internal revenue service issued the 2024 optional standard mileage rates to calculate the deductible costs of operating an. Vehicle rates are based on a monthly lease and mileage charge, which includes all maintenance and fuel.
Washington — the internal revenue service. Gsa has adjusted all pov mileage reimbursement rates effective january 1, 2024.