2025 Mileage Reimbursement Rate Illinois. As of 2025, the irs rate is 67 cents per mile for business travel. The mileage reimbursement rate for travel on/after january 1, 2025 is 67 cents per mile.

Find information on travel reimbursement, lodging, transportation, and more for state of illinois employees. Compare the costs of different modes of transportation for state employee business travel.