State Of Illinois Mileage Rate 2025. In sum, the state of illinois’ mileage reimbursement rate for the use of personal vehicles will increase from 58.5 cents per mile to 62.5 cents per mile effective july 1,. In sum, the state of illinois’ mileage reimbursement rate for the use of personal vehicles will increase from 65.5 cents per mile to 67 cents per mile effective.

Amends the compensation review act. Effective january 1, 2025, the mileage reimbursement rate for employees using private passenger vehicles for university business will increase from 65.5 cents.