William T. McCallum III


New York - New York

T: 212.643.0099 / Ext. 10352Contact

Practice Areas

Industry Expertise

Professional Experience

William McCallum is a Partner in the Tax Department at Prager Metis, a member of Prager Metis International Group. He has been in the accounting industry for over a decade.

William specializes in providing tax services to financial service organizations. He focuses largely on investment partnerships. He also provides tax services to high-net-worth individuals. William takes pride in always being accessible to his clients.

Before joining Prager Metis in January 2021, William spent 6 years in the financial services tax group of a Big 4 firm followed by an additional 6 years at a small Manhattan boutique tax practice.


  • BA, General Studies, University of Michigan, Michigan
  • MBA, Professional Accounting, Fordham University, New York