The Real Estate Tax Warrant Books are the official property tax records of Cook County and contain all payments, refunds, and other actions affecting a tax parcel.

The Electronic Real Estate Tax Warrant Book offers this information in a convenient online format that facilitates accessibility and more effective research on a tax parcel.

NOTE: If the property you are searching for has additional warrants, other than the General warrant issued for a particular tax year, the information for each additional warrant will be displayed. Other types of warrants include Back Tax (Omitted Assessment), Air Pollution and Circulator.