Cook County Treasurer's Office

The Cook County Treasurer's Office is a governmental entity responsible for the collection, safeguarding, investment, and distribution of property tax funds for Cook County, Illinois. Its core mission is to ensure the timely and accurate flow of these funds to approximately 2,200 local government agencies within the county. The office is headquartered in Chicago, Illinois.

The office provides a range of essential services, including the printing and mailing of property tax bills, processing property tax payments, and distributing collected revenues to various taxing bodies such as school districts, municipalities, and park systems. It also manages tax sales for delinquent properties, handles property tax refunds, and processes court-ordered deposits. For taxpayers, the office offers online tools to check payment status, search for potential refunds, and access property tax histories. These services cater to over 1.8 million property owners across Cook County.

Maria Pappas has served as the Cook County Treasurer since 1998, overseeing significant modernization and transparency initiatives. Under her leadership, the office has implemented a comprehensive digital platform, streamlined operations, and introduced the Debt Disclosure Ordinance to provide taxpayers with detailed insights into local government debt. Recent activities include a 30-year analysis revealing a 182% increase in Cook County property taxes from 1995 to 2024, and ongoing efforts to expedite property tax refunds, including the integration of artificial intelligence. The office has also recently engaged in public discourse regarding the Chicago Bears' proposed megaproject bill, raising concerns about its potential tax implications for residents.