Tax Professional and Business Owner
William E. Spar
M.A., CTP, LUTCF
More than 20 years of industry knowledge, business experience and dedicated study focused on helping individuals, families and small businesses work toward better tax and retirement outcomes.

Professional Journey
Education, Experience and Purpose
Bill’s professional approach brings together formal education, decades of practical experience and a commitment to helping clients understand more possibilities for their future.
Education in Management and Business
Bill graduated from the University of Phoenix with his Bachelor of Science degree in Management and Business. He then graduated from the University of Redlands in Southern California, where he completed his Master of Arts degree, also focused on Management and Business.
A New Professional Direction
After a long stint in his family’s real estate business, Bill decided to go into business for himself in the insurance and financial services industry in 2000.
Decades of Industry Study
Bill’s approach is the culmination of more than 20 years of study in academia and practical industry experience. His background includes thousands of interviews and the privilege of serving as a proofreader for industry books and magazines produced by longtime industry partners.
Speaking, Teaching and Helping Others
Bill has spoken and taught about retirement, investments, taxes and tax-free income for many years. He enjoys helping people discover additional ways to work toward a better retirement.
Industry Recognition and Community Commitment
Bill has been featured on magazine covers and written about in industry publications detailing his professional work and his commitment to giving back to the communities where his firms do business.
A Holistic Perspective
Experience That Extends Beyond Tax Preparation
Bill’s work combines tax preparation, tax planning, business knowledge and retirement-focused education. His objective is to help clients consider both their current responsibilities and their longer-term financial picture.
Through careful preparation and proactive planning, Bill helps individuals, couples and small businesses better understand their options and make more informed decisions.
Family and Interests
Bill resides full-time in Phoenix, Arizona, with his wife, Dena, and their children, Billy Jack and Josi. Bill is an avid golfer and enjoys football, motocross and NASCAR.
Business Leadership
Bill owns and operates businesses focused on tax preparation, investment guidance and advisory services.
- ARP Tax Pro, LLC — retail tax services for individuals, couples and small businesses.
- Advanced Retirement Planning, LLC — investment and advisory services.
Serving Multiple Communities
Three Office Locations
Connect With William E. Spar
Contact Bill and the ARP Tax Pro team to discuss your tax preparation, tax planning or small-business needs.