- Only 20% of property values were contested by owners in 2019
- Property owners who appealed saved an average of $310
The Cook County Assessor’s Office (“CCAO”) has released numbers on all residential property tax appeals filed for 2019 and the data is clear: only a fraction of property owners appeal. Only 20% or 1/5 of property assessments were appealed in 2019 and as shown in the above map, appeals were concentrated in the North Suburbs.
Presumably, a higher percentage of North Suburbs property owners submitted appeals because those properties were reassessed in 2019 and the CCAO mailed letters to those owners notifying them that their property taxes might change significantly as a result.
It seems that most residents still don’t know that they can appeal every year, and not just when their property is reassessed. Property values can change on a monthly basis, much less yearly, and therefore it is likely that properties are inaccurately valued by the County. By law, assessed values cannot be increased because of an appeal, so Cook County property owners are missing out on potential savings.
Around 30%1 of appeals succeeded in lowering assessed value. Of those that were successful, the breakdown in taxes saved by the property owners was:
|Taxes Saved||Number of Properties||Percent|
|Up To $250||20,218||21%|
|More than $1000||26,088||27%|
50% of property owners who appealed saved more than $500.
The CCAO generally reassesses Cook County properties once every 3 years. In 2020, as a response to the ongoing COVID-19 pandemic, the CCAO is reassessing all properties:
|Year||County Triad Reassessed|
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