David Cowling has extensive transactional and tax controversy experience with taxing authorities throughout the United States and abroad. He chairs the Firm's State and Local Tax Practice and its e-Commerce Tax Practice.

David has pending a Petition for Certiorari at the United States Supreme Court for a Kansas property tax dispute, and earlier this year petitioned the Court in an Alaska unitary income tax case. He is integrally involved in Delaware qui tam cases involving companies using gift cars and in several dozen pending audits and cases involving online travel companies. Recent tax controversy defense work includes the successful defense of an unusually large sales tax assessment of one of the country's largest e.commerce companies, defense of a substantial West Coast unitary assessment, and successful appeal of a very large municipal use tax assessment. David represents diverse e.commerce, financial services, energy, manufacturing, marketing, wholesaling, distribution, retailing, and services industry taxpayers.

David is a member of the BNA Tax Management State Tax Advisory Board, the Texas Comptroller's Taxpayer Advisory Group, the State Bar of Texas (Tax Section), and the District of Columbia Bar (Taxation Section). He serves enthusiastically on the board of trustees of the St. Philips School and Community Center in Dallas.