Overview The property tax is the largest single tax in Illinois, and is the major source of tax revenue for local government taxing districts. The property tax is a local tax, imposed by local government taxing districts which include counties, townships, municipalities, school districts, special districts, etc.
Property tax is administered by local officials.
Illinois does not have a state property tax. The process of imposing the property tax has three distinct parts. Next, the taxing district files a levy with the county clerk on the property situated within its boundaries. Finally, the county clerk calculates the tax rate that is required to produce the amount of the levy based on the assessed value of each property in the district so taxes can be billed. The department administers some aspects of the property tax system.