It is no secret that Illinois property taxes are sky-high. In some cases, you may disagree with the assessed value of your property as it appears on your tax bill, and if you wish to appeal it, you must do so at the local level.
Per the Illinois Department of Revenue, it is important to note that you are appealing your property’s assessed value, and not the tax bill itself. If you wish to dispute the assessed value amount, you may do so through either an informal or formal appeal. Regardless of which method of appeal you choose, know that you may want to have the following forms of evidence ready before doing so.
Copies of property record cards and home photos
Come prepared to furnish a property record card and photos of the property in dispute. You should also secure property record cards and images from similar, neighboring properties for comparison. You may also want to bring a list of recent home sales in your neighborhood for comparative purposes.
Proof of property ownership
You also need to show that you are the legal owner of the property in question. To do so, make sure to produce a deed, purchase contract of Real Estate Transfer Declaration for your home.
If you have your own appraisal that dictates the value of your property, bring this along, too, as it may help strengthen your case.
You may want to start the property tax appeals process in an informal manner. Then, if that fails to produce the results you want, consider moving forward with a formal appeal.