Mileage Rate 2024 Washington State. Washington โ the internal revenue service today issued the 2024 optional standard mileage rates used to calculate the deductible costs of operating an automobile for business, charitable, medical or moving purposes. Mileage rate increases to 67 cents a mile, up 1.5 cents from 2023.
For 2024, the standard mileage rate is the following: (this is up from 65.5 cents per.