Property Values
How often is my property reassessed? Cook County is reassessed triennially, which means one-third of the county is reassessed each year. Your property may also be reassessed if there are any changes due to a permit application, property division, demolition or other special application. The next general reassessment for Hanover Township will take place in 2025.
What is the difference between my assessment notice and my tax bill? A reassessment notice usually arrives once every three years after the Township has been reassessed. The schedule of reassessment mailing dates can be found on the Cook County Assessor's website with corresponding appeal dates. It does not require any action on your part though you may appeal if you believe the assessment is incorrect.
Your annual tax bill comes from the County Treasurer's Office in two installments. The first installment for Tax Year 2023 will be due on March 1, 2024 and is equal to 55% of your total bill for 2022.
Your reassessment will affect the second installment tax bill the following year. The next reassessment will occur in Hanover Township in 2025 and your reassessment notice will arrive in that year. The tax bill reflecting the assessment will arrive in July of 2026 (subject to change). Any reductions from appeals will be reflected on that second installment tax bill the following year