Professor Porter specializes in issues related to the federal income taxation of individuals, corporations, and their shareholders. Her research interests include the effect of accounting and tax regulation on business decisions.

Professor Porter has published numerous articles on tax and accounting topics in scholarly journals, including Journal of Accounting and Economics; Contemporary Accounting Research;Journal of Accounting, Auditing and Finance; and Journal of the American Taxation Association, among others. She is on the editorial board of Journal of International Accounting, Auditing and Taxation and an active member of the American Taxation Association and the American Accounting Association.