Skip to Main Content

John specializes in state and local taxation.

With more than 40 years of experience, including tax management positions with GE Medical Systems (Healthcare) and Miller Brewing Co., John provides detailed knowledge and insight on state and local taxes to a broad range of clients.

John currently serves as editor-in-chief of the Journal of State Taxation and is co-author of the Sales and Use Tax Answer Book. He is also co-author of the Multistate Corporate Tax Guide and is a senior lecturer emeritus at the University of Wisconsin-Milwaukee Sheldon B. Lubar School of Business.

John is a Chartered Global Management Accountant (CGMA) and a Certified Public Accountant (CPA) in Wisconsin.



  • M.S., University of Wisconsin-Milwaukee
    • Taxation
  • B.S., Marquette University
    • Accounting

Professional Associations and Memberships

  • American Institute of Certified Public Accountants
  • Wisconsin Institute of Certified Public Accountants 
  • The Institute for Professionals in Taxation (IPT)