Welcome to Pennsylvania Tax Institutes, Inc.

Pennsylvania Tax Institutes, Inc. (PTI) was founded in 2004 in response to a growing need for quality Continuing Professional Education in the field of federal income taxation. Since inception, the company has been an affiliate of the Land Grant University Tax Education Foundation, (LGUTEF), a nonprofit corporation comprised of over 26 of the nation’s finest land grant universities that sponsor tax education programs for professional tax preparers. The LGUTEF plans, writes, develops and publishes the “National Income Tax Workbook”, the publication used by PTI at its income tax seminars. This publication is provided to all who register to attend the two-day seminar.  Please note that it is available for purchase for those attending the two-day webinar.  In addition, a complimentary online subscription of the workbook will be provided to all attendees of the two-day seminar or webinar.

PTI’s mission is to deliver first class tax education seminars at a very affordable price. All of our presenters are selected for their expertise in the field of federal income taxation, as well as their excellent presentation skills. Many have more than 30 years of experience with the Internal Revenue Service.

Our Team

Mark L. Ribas

Mark is the President and Director of Pennsylvania Tax Institutes, Inc. He retired from the Internal Revenue Service with over 38 years of experience. Mark has taught the Land Grant University Tax Seminars as an instructor for Virginia Tech, West Virginia University as well as Texas A&M University. He has also served as an adjunct professor of accounting for Fairmont State University and given several presentations at functions for the Tax Executive Institute and Working Together conferences. Mark also instructs nationwide webinars for FastForwardAcademy, Inc.

John A. Delligatti
Vice President

John is an officer of Pennsylvania Tax Institutes, Inc. He retired from the Internal Revenue Agent with over 33 years of experience. He previously served as a Team Coordinator directing teams of Agents and Specialists in examinations of large domestic and international corporations and partnerships. John served on several instructor assignments within the Internal Revenue Service and was regularly consulted on the utilization of computers to reduce burden with tax and accounting problems.

Susan D. Harper

Susan is also an officer of Pennsylvania Tax Institutes, Inc. With over 34 years of experience as an Internal Revenue Agent, Susan examined Abusive Schemes for 6 years before becoming a Fraud Enforcement Advisor for PA, VA, and WV for 13 years through 2021. She is now a Senior Program Evaluation & Risk Analyst for Research, Applied Analytics, and Statistics. Susan has also instructed the Land Grant University Tax Seminars for Virginia Tech, West Virginia University, and Texas A & M since 2000. Susan is also a member of the Fairmont State University Foundation and a Certified Fraud Examiner.