About the Cook County Assessor's Office

Responsibilities of the Assessor's OfficeOur public service responsibilities, however, are not limited to setting property values. In addition to working with other government agencies to stimulate economic development, job creation and the construction of affordable housing, we also seek to help county residents better understand the assessment process and take advantage of money-saving exemptions the office provides.The Assessor's Office has also taken the lead on developing both short-term property tax relief proposals as well as working toward the overall restructuring of the tax system to make it more equitable for all taxpayers.The Role of the Cook County AssessorThe Cook County Assessor is an elected government official who is responsible for establishing fair and accurate property assessments. Valuation of the county's 1.8 million parcels of property is conducted for ad valorem tax purposes. Ad valorem means according to value and refers to the amount of taxes that will be requ...