Cook County 2024 Second-Installment Property Tax Bills Finally Mailed Today: What Homeowners Need to Know Before the Dec. 15 Deadline
Cook County’s 2024 second-installment property tax bills are being mailed November 14, 2025, nearly four months late after a troubled tech system overhaul. Payment is due December 15, with a 0.75% monthly interest penalty for late payments. About 1.8 million property owners are affected. The next bill will not be due before April 1, 2026.