William Harbeson

William Harbeson

Director of Energy Initiatives


If there’s one thing Bill Harbison knows, it’s construction. He started by installing HVAC after high school, spent years in construction management, and smoothly transitioned to tax consulting with a construction focus. Bill attributes part of his success to the sheer volume of Energy Studies he’s overseen in the last decade – he’s seen every scenario, addressed every nuance, and left no dollar behind. But more than that, Bill believes in a client-centric approach, striving to create the positive service experiences that taxpayers – and tax professionals — deserve.  


Bachelor of Science (BS), Mechanical Engineering, Texas Tech University 

  • Has overseen 1000s of EPAct 179D Studies, yielding over $1B in tax savings for his clients  
  • Extensive process experience with a focus on compliance, quality assurance, and audit readiness 
  • Managed a large team of energy professionals, providing all tax and technical onboarding  
  • Strong construction background allows him to speak the “language” of industry professionals, helping him better understand their needs
Behind the Scenes:  
  • Bill enjoys some extreme hobbies – he’s a fully licensed racecar driver and a licensed parachutist! 
  • When he’s not being extreme, you might find him at a concert or out for a sail