Katy Stone focuses her practice on tax controversy and litigation, centering on complex areas such as international tax, multistate income apportionments, remote worker and payroll taxes, and administrative procedures. She represents an array of clients ranging from multinational corporations, partnerships, and financial institutions, to tax-exempt organizations and individuals. She navigates the intricate landscape of federal and state income tax controversies at various stages, including audits, administrative appeals, and judicial proceedings.

Katy has represented clients before the U.S. Tax Court and the U.S. Court of Federal Claims, as well as various taxing authorities in contentious tax matters. Additionally, Katy assists companies in tax planning and multistate income apportionment analysis.