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Illinois Department of Revenue to Waive Penalty for Late Filing of Business Income Tax Returns Due October 15

USA - October 12 2018 The Illinois Department of Revenue (Department) announced that it will grant abatement of late filing penalties for taxpayers that file their Illinois...

Mary Kay McCalla Martire.

Illinois Department of Revenue Issues Post-Wayfair Guidance Implementing October 1 Economic Nexus Law

USA - September 28 2018 In June 2018, just before the US Supreme Court ruling in Wayfair, Illinois enacted an economic nexus standard modeled after South Dakota’s law (see...

Mary Kay McCalla Martire.

Personal income taxes in Illinois

USA - September 27 2018 A structured guide to personal income taxes in Illinois...

Mary Kay McCalla Martire.

State and Local Taxes in Illinois

USA - September 27 2018 A structured guide to state and local tax law in Illinois...

Mary Kay McCalla Martire.

Corporate income and franchise taxes in Illinois

USA - September 27 2018 A structured guide to corporate income and franchise taxes in Illinois...

Mary Kay McCalla Martire.