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We believe that for government to truly serve the public, it must be: Stable, Sustainable, and Resilient

Achieving this requires a foundation built on systems that are: Accessible, Accountable, Effective, and Transparent

Through independent research, analysis, and advocacy, we promote policies and practices that not only address today’s challenges but also build long-term trust in government. Our two primary pillars of work are government fiscal policy and governance structure. Focus areas within these pillars include budgeting best practices, pensions, property tax, government consolidation, infrastructure, and structural reform, among others.

August 6, 2025

The Cook County Property Tax Extension Process: A Primer

This report explains the system and method for how property taxes are levied, calculated and collected in Cook County, Illinois. This is called the tax extension and billing process. Additional Civic Federation primers will explain the Cook County assessment, property tax appeals and tax increment financing (TIF) systems.

The purpose of this report is to make the property tax system more transparent and understandable for policymakers, homeowners, renters, business owners, and residents across Cook County.

Keep up with the Civic Federation's latest research and recommendations on fiscal policy and other key issues facing our state and local governments.

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