The Assessment Process and The Statutory Role of the Township Assessor

The whole property assessment process can be very confusing and frustrating. One of our goals is to make sure we provide the information you need related to this process, so that you feel as comfortable as possible with how your assessment is determined and what your options are for resolving any issues that you may have.


An important thing to keep in mind is that the Township Assessor is not a tax assessor. The Township Assessor does not estimate, determine, calculate, or bill your property taxes. By law, the Township Assessor cannot make any changes to your taxes.


The Township Assessor's role in the property tax cycle is to assess (or determine the value of) real property (real estate). This assessed value of a property is based on Illinois State statute that specifies that the assessed value is to be 33 1/3% of the fair market value for that property. A good example would be if the fair market value of a property was $75,000, then the assessed value would be $25,000.


In order to put an appropriate assessment (assessed value) on a property, the Township Assessor keeps a detailed record of each property. This is commonly known as a Property Record Card (PRC). The PRC contains information about the land, buildings, and other substantial improvements on that property. As a property owner, you are always welcome to come in to our office and request a copy of your PRC from our staff. Additionally, there is an online property search and PRC function on this website, which will allow you to look up and print your property information 24/7 from any computer connected to the internet.


Once all assessments are completed for a year, they are sent to the Rock Island County Supervisor of Assessments. The Supervisor of Assessments has additional statutory responsibilities, including equalization, maintaining exemptions, and clerk of the Board of Review. The Board of Review is a three member panel appointed by the County Board. It is the Board of Review's responsibility to hear testimony on written appeals on the assessment of any real property in Rock Island County, and when deemed justified, to make any adjustments to assessed value of the property. Once the Supervisor of Assessments completes the Board of Review process, the assessments will be certified and then will serve as the base number for the tax calculation process.