Event date: 9/2/2023 8:30 AM Export event Nina Campbell / Wednesday, January 18, 2023 / Categories: Treasurer Dates 6.0% Interest 1st Installment/1.5% Interest 2nd Installment Per Illinois State Statute, 6% interest per month due on 1st Installment late payment & 1.5% interest is due on 2nd Installment late payments. Print 103