Michael J. Wynne

Jones Day
Michael J. Wynne is a partner with Jones Day in Chicago, Illinois. Mike has 35 years of state and local tax experience, eight of those in state government, and the remainder serving clients in Big 4 and AmLaw 100 firms. Mike served as general counsel to three Directors of the Illinois Department of Revenue, having previously headed the Revenue Litigation division of the Office of the Illinois Attorney General.

Mike has assisted clients in litigation and appeals in state and federal courts. He has defended clients in dozens of state qui tam (False Claims Act) cases seeking treble damages and penalties for alleged tax and unclaimed property reporting violations in Illinois and in Delaware, and has tried property and sales tax exemptions for charitable organizations and government contractors, individual residency cases, and a variety of multistate corporate income and sales tax and unclaimed property escheat issues. Mike's clients and cases have spanned multiple states and include the telecommunications, pharmaceutical, financial, manufacturing, healthcare, government contracting, internet publishing, cloud-services, and streaming industries. He serves on the board of trustees of the Taxpayers' Federation of Illinois (TFI), and is a former chair of the Chicago Bar Association's (CBA) SALT Committee. Mike convened the first Illinois Director of Revenue's Advisory Committee, and has thereafter served by invitation on every Director's Advisory Committee. Mike served on the legislative and regulatory drafting subcommittees of the CBA and TFI for the Illinois Independent Tax Tribunal Act of 2012.


J.D., Chicago's John Marshall Law School
B.A. in Finance, Southern Illinois University

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