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William J. LeDoux

William LeDoux’s practice has a broad state and local tax focus with experience in multistate tax planning and controversy matters involving sales, franchise, property, and income taxes and unclaimed property. He has assisted in the representation of taxpayers in administrative and judicial proceedings in various jurisdictions, many of which involved complex and novel issues. William has also advised on the tax implications of various business transactions, including business acquisitions and restructurings, asset and product sales and leases, and tax incentive opportunities. He has also assisted with tax-related legislative efforts.

William’s representations include taxpayers from various industries, including air carriers and private aircraft operators, e-commerce and brick-and-mortar retailers, energy and utility companies, health care companies, manufacturers, software and technology companies, sporting goods companies, telecommunications companies, and travel companies.

  • Recognized by The Legal 500 United States as a Recommended Lawyer for US taxes: non-contentious, 2024
  • Recognized in Best Lawyers: Ones to Watch for Litigation and Controversy - Tax, 2022
  • State Bar of Texas
    • Vice-Chair, State and Local Tax Committee, Tax Section, 2017-present
    • Tax Section Leadership Academy, 2016-17
    • Tax Section, 2013-present
  • American Bar Association
    • Tax Section, 2013-present
  • Dallas Bar Association
    • Tax Section, 2013-present
    • Exchange Club of Lake Highlands, 2018-present
  • Dallas Association of Young Lawyers, 2013-present
  • UNT College of Law L.A. Bedford, Jr. Mentor, 2015-16
  • “Corporate Income Tax Apportionment: Basics, Trends, and Beyond,” Annual Texas Comptroller Briefing, November 13, 2018
  • “So, you have a tax dispute with the Texas Comptroller. Now what?” Tax Law in a Day, February 9, 2018
  • “Update on the Updates: Recent Texas Comptroller Rulemaking Activity,” Texas Society of Certified Public Accountants Texas State Taxation Conference, August 7, 2017
Additional Thought Leadership Pages
  • "Taxation," SMU Law Review Texas Survey, 2013-present
  • "Texas Legislature Passes Tax Bills Affecting Sales and Use Tax Treatment of Aircraft and Certain Purchases by Radio Broadcasters," Council on State Taxation Practitioner Connection, 2 July 2015
Additional News & Event Pages
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