Please see the following tax bill due dates for the Collar Counties: County First Installment Due Date Second Installment Due Date Pay Online Kane June 1, 2026 September 1, 2026 Kane County Treasurer Will June 1, 2026 September 1, 2026 Will County Treasurer DuPage June 1, 2026 September 1, 2026 […]
First installment property tax bills are now available online, and the Cook County Treasurer’s Office will be mailing the tax bills by March 2, 2026. Payment must be made by April 1, 2026 before interest penalties begin to accrue. The first installment for the 2025 taxes paid in 2026 will […]
The 2024 Cook County second installment property tax bills were mailed by the Treasurer’s Office as of November 14, 2025. The Treasurer’s Office must receive payment no later than December 15, 2025 to avoid penalty interest. The second installment property tax bills were substantially delayed due to various technical difficulties […]
Due to technical issues at the Assessor’s Office (“AO”), the AO missed a deadline to get reports to the Illinois Department of Revenue in a timely fashion. These reports are part of the process of finalizing the assessments and the second installment tax bills. Second installment tax bills are typically […]
The deadline to apply for 2024 property tax exemptions is Monday, April 21, 2025. Eligible taxpayers that apply for exemptions will receive a reduction in the assessed value of their property. Some examples of exemptions include the Homeowner Exemption, the Senior Exemption, the Low-Income Senior Assessment Freeze Exemption, and the […]