Tax Redemption If your unpaid taxes have been sold, the Clerk's office can provide you with an Estimate of the Cost of Redemption.
Tax Extension and Rates The Clerk's Tax Extension Unit is responsible for calculating property tax rates for all local taxing districts in Cook County. 
Delinquent Property Tax Search Use your Property Index Number (PIN) to see if your property has any sold, forfeited or open taxes.
Tax Agency Reports Search past Tax Agency Reports that reflect the data used to calculate the tax rates for local taxing districts.
TIFS (Tax Increment Financing) Reports, tools & information on TIF districts - a tool that a city can use to generate money for development in a specific area using taxpayer funds.
Tax Map Department The Map Department maintains records of taxing district boundaries to provide the basis for property tax calculations done for tax extensions.
About Property Index Number (PIN) A PIN, or property index number, is a unique 14-digit number that represents a parcel of land for taxation purposes.
Tax Sales An overview of Taxbuyer requirements to meet tax sale ordinance and office objectives.
Property Tax 101 An overview of the Illinois Property Tax system operating in Cook County.
Tax FAQs and Glossary of Tax Terms Frequently asked tax-related questions and a glossary of tax terms to know in order to understand your taxes.