
For the 2024 DuPage County property taxes, payable in 2025, the two installments are due on June 2 and September 2, 2025. The first installment must be paid on or before June 2, and the second on or before September 2. Late payments incur a penalty of 1.5% per month, and mailed payments are considered late based on the U.S. Postmark date.


