The Illinois General Assembly enacted a number of new tax measures in a flurry of activity at the end of its legislative session. Some of the changes are taxpayer friendly and others are not. Unlike the no-deal chaos of past years, all of the measures have been or are expected to be signed by the state’s new Democratic governor, J.B. Pritzker.

This blog post summarizes the income-tax and franchise tax-related changes approved by the General Assembly. Subsequent posts will address sales/use, property and other tax changes.
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The 2017 federal tax reform bill, known as the Tax Cuts and Jobs Act (Act), made a number of significant changes to the law, particularly to the international tax provisions of the Internal Revenue Code (IRC). Last month, Illinois joined the growing number of states responding to the Act by proposing legislation purporting to add-back

Due to the current impact and the likelihood that states will consider legislation and agency guidance addressing federal tax reform implications for state business taxes, a united, effective, nationwide advocacy effort is needed to ensure the issues are consistently addressed on a multi-state basis. In preparation for anticipated ramifications, a multi-state coalition will need to consider the subjects summarized below. For further coverage, continue reading here.

How McDermott Will & Emery Can Help You:

  • Formation of a coalition of companies and industry trade organizations dedicated to proactively addressing state tax issues raised by federal tax reform on a nationwide basis
  • Identify and track, in real time, proposed state legislative and regulatory responses to federal tax reform
  • Analyze proposed state reforms and develop substantive amendments and comments
  • Develop and implement advocacy campaigns to secure favorable legislative and regulatory outcomes, including
    • Preparation of all advocacy collateral
    • Organization of on the ground advocacy, including retaining in-state advocates where needed
    • Activating allied organizations to ensure broad support
  • Provide support concerning the proper reporting of state responses to federal tax reform on company financial statements

Coalition Goals: 

  • Prevent state legislation expanding tax base through decoupling from federal deductions
  • Support state legislation adopting comprehensive federal reform conformity, with appropriate deviations
  • Identify and remedy Commerce Clause issues
  • Encourage states revenue department to publish guidance on issues such as definitional questions, apportionment approaches and problems with different group calculations
  • Identify and act on opportunities to address related issues through state responses to federal reform
  • Prepare to address potential nexus changes in response to South Dakota v. Wayfair


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