Illinois local and state tax and Tax Guide - Accounting Review

Illinois Department of Revenue
Provides tax information, electronic services, business registration services, press releases and other tax-related information.
Tax Forms
Provided by the Illinois Department of Revenue.
Illinois Supreme and Appellate Court Opinions
Contains Illinois Supreme Court opinions filed since May 23, 1996, and Appellate Court opinions filed since September 1, 1996.
Illinois Legislature
Tax Regulations and Rulings
Illinois State Government
Information on the state of Illinois, including details on government and tourism.
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