Treasurer and tax collector offices in Illinois are county-level agencies responsible for billing, collecting, and managing property tax revenue. Illinois governs property tax collection through state statute, setting the annual tax calendar, exemption eligibility rules, and procedures for delinquent properties.
Treasurer Tax Collector locations are available in 119 cities across Illinois. They are spread across 101 counties.
Cities with the highest concentration of treasurer and tax collector listings in Illinois include Chicago, Toledo, Springfield, reflecting counties with the highest property tax volumes and largest number of taxable parcels.
Illinois property owners should be aware of the state's property tax calendar, including assessment appeal deadlines and payment due dates — missing these deadlines can result in penalties, interest charges, or placement of a tax lien on the property.
Treasurer Tax Collector by Counties
Illinois property owners who are 65 or older, veterans, or living with a qualifying disability may be eligible for significant property tax exemptions — contact your county tax collector or assessor office to learn about available programs and the required application documentation before the filing deadline.
Browse Treasurer Tax Collector by county across Illinois to find the nearest location.