Mileage Reimbursement 2024 Washington State Tax Return. In 2024, the washington mileage reimbursement rate for business travel is 67 cents per mile,. * airplane nautical miles (nms) should be converted into statute miles (sms) or.

For 2024, the standard mileage rate is the following: House bill 2026 would charge drivers the greater of a gas tax or a ruc of 2.5 cents a mile, beginning with mandatory participation from those who own electric.