Mark Sommer


Mark F. Sommer, Esq., is a Partner of the Firm and tax attorney resident in the Louisville office of the law firm of Frost Brown Todd LLC, where he serves as the Tax & Employee Benefits Practice Group Leader and leads the Firm's Tax & Benefits Teams. Now in his 30th year of private practice on a national scale, Marks comprehensive practice focuses on controversy, litigation and planning relating to tax matters, primarily state and local tax matters and incentives. He has been involved as counsel in well over a thousand controversies and disputes regarding countless tax issues before the administrative and judicial systems of numerous jurisdictions, and assisted in hundreds of transactions and planning situations providing strategic advice. Mark is a Fellow in the American College of Tax Counsel, one of only five from the Commonwealth of Kentucky and is recognized as a “Super Lawyer” in Kentucky.

Mark has also been recognized as one of the Best Lawyers in America for twenty-three years in Tax Law and in Litigation & Controversy– Tax and was honored by State Tax Notes as one of its two “Practitioners of the Year” in 2015 and one of its “Persons of the Year” in 2013 making him the first person so recognized two times. He serves on several American Bar Association, Section of Taxation committees and projects, currently serving as Chair-elect of the Committee on State and Local Tax. He was recently appointed by Gov. Bevin to serve on the Kentucky Lottery Corporation Board, which he now Chairs, and serves on the Advisory Boards of the Paul J. Hartman Memorial State and Local Tax Forum at Vanderbilt University, the Journal of State Taxation, the Deloitte Center for Multistate Taxation at the University of Wisconsin-Milwaukee, the Bloomberg BNA Multistate Tax Advisory Council, the CCH Multistate Corporate Tax Guide and State Tax Notes.

He has written extensively in the area of state and local taxation. His articles have appeared in numerous publications, including several Institute for Professionals in Taxation (IPT) publications, authoring the Kentucky Chapter of the ABA's Property Tax Deskbook, various Council on State Taxation (COST) publications, State Tax Notes, The Journal of State Taxation, Tax Notes, The Journal of Property Taxation, Bloomberg BNA's Multistate Tax Advisor, The Tax Lawyer, and still many others. He also was the Contributing Editor for CCH's Guidebook to Kentucky Taxes (all editions), and serves as General Editor of Lexis Nexis Tax Practice Insights for Kentucky. Mark is a frequent speaker and lecturer on state and local tax matters at conferences, forums and groups such as IPT, Hartman SALT Forum, Deloitte & Touche Multi-State Tax Institute, Kentucky Society of CPAs, COST, Tax Executives Institute, Georgetown's Advanced State and Local Tax Conference, Ohio Tax Conference, Kentucky Bar Association (past Tax Section Chair), Louisville Bar Association (past Tax Section Chair), and the American Bar Association. He previously served as Chair of the SEATA Industry Council. He obtained his JD from the University of Cincinnati College of Law and his BSBA from Xavier University.

Frost Brown Todd LLC
400 West Market Street, Suite 3200
Louisville, KY 40202 -3363

(P) (502) 779-8150
(F) (502) 581-1087

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