Mark B. Persellin, Ph.D., CPA, CFP, is the Ray and Dorothy Berend Professor of Accounting at St. Mary’s University. He is a graduate of the University of Arizona (B.S.), the University of Texas at Austin (M.P.A. in Taxation) and the University of Houston (Ph.D.). He teaches Personal Income Tax, Business Income Tax and Research in Federal Taxation. Prior to joining St. Mary’s University in 1991, Professor Persellin taught at Florida Atlantic University and Southwest Texas University (Texas State University) and worked on the tax staff of a Big 4 firm. His research has been published in numerous academic and professional journals, including The Journal of the American Taxation Association, The Accounting Educators’ Journal, The Tax Adviser, The CPA Journal, Journal of Taxation, Corporate Taxation, The Tax Executive, TAXES—The Tax Magazine, Journal of International Taxation and Practical Tax Strategies. In 2003, Professor Persellin established the St. Mary’s University Volunteer Income Tax Assistance (VITA) site and he continues to serve as a trainer and reviewer at the site.