Do I have to wait for my scheduled reassessment year to file a property tax appeal?

• You do not have to wait for a reassessment notice to lower your bill. While the Cook County Assessor operates on a triennial (three-year) cycle, homeowners have the right to challenge their assessment every single year.

  • Yearly Opportunities: Every year, the Cook County Assessor and the Cook County Board of Review open "filing windows" for each township. This allows you to submit new evidence, such as recent nearby sales, to prove your home's value has decreased.

  • The Benefit of Annual Filing: Property values in your neighborhood change constantly. Filing an appeal in an "off-year" can lock in a lower value for the remainder of your three-year cycle, preventing you from paying for an outdated, inflated assessment.

  • Proactive Monitoring: Because these windows only stay open for roughly 30 days, missing a deadline with the Cook County Assessor means you must wait for the Cook County Board of Review to open later in the season to catch those savings.

Why choose us? Cook County Tax Appeals LLC provides a full-service experience. We monitor these deadlines for you and use advanced data modeling to identify over-assessments that the Cook County Assessor's mass-appraisal system might have missed.