Cook County Property Tax Bills Delayed, Causing Concern

Strategic Insights -

Cook County property tax bills, covering roughly $8 billion in second-half assessments, won't be sent out until at least September, and may not be due until October or even later. This delay is causing concern among local governments that rely on property tax revenues, such as school districts, which may struggle to make ends meet. The delay is attributed to issues with the county's conversion to a new computer system, logistical problems, and disputes among officials.

Key Takeaways:

  • Cook County property tax bills covering $8 billion in second-half assessments won't be sent out until at least September, with a due date likely in October or later.
  • Local governments, such as school districts, will struggle to make ends meet due to delayed property tax revenues.
  • The delay is attributed to issues with the county's conversion to a new computer system, logistical problems, and disputes among officials.
  • The county's ability to adhere to the July-February schedule, agreed upon by officials in recent years, has been compromised.
  • Chicago Public Schools, among other bodies, will be under increased stress due to the delay.
  • The new property tax bills will reflect the recent triennial reassessment of city property, with homeowners paying relatively more.
  • Chicago Alderman Brendan Reilly may challenge Cook County Board President Toni Preckwinkle in the 2026 Democratic primary.
  • State lawmakers seeking new terms may face backlash over the delay in property tax bills.

Statistics:

  • $8 billion: The amount of second-half property tax assessments that will be delayed.
  • July 1: The usual date for sending out property tax bills.
  • Aug 1: The usual due date for property tax payments.
  • Sept 1: The earliest date for sending out property tax bills.
  • Oct 1: The likely due date for property tax payments.
  • Feb 1: The scheduled deadline for property tax bills covering the first half of the year.
  • 2026: The year of the Chicago City Council budget preparation.
  • 2026: The year of the Cook County Democratic primary.

Sources:

  • Crain's Chicago Business, Aug 20, 2025
  • Cook County Board President Toni Preckwinkle's statement, Aug 20, 2025
  • Cook County Assessor Fritz Kaegi's office
  • Cook County Treasurer Maria Pappas' office