John Scanlan


John M. Scanlan, CPA, is a partner with over 40 years of experience working with high net worth individuals, businesses, and trusts to achieve financial success. Prior to joining Sikich as partner, John was co-owner of Scanlan & Leo, a public accounting firm offering accounting, audit, tax compliance and planning, and advisory services to companies across several industries. Scanlan & Leo was acquired by Sikich in 2019.

John currently focuses on delivering effective tax planning, preparation, and compliance solutions to high net worth individuals and closely held businesses. John’s clients lean on his specialized expertise in accounting, tax, and consulting services, as well as his experience delivering succession planning and business entity selection advice and knowledge.

In addition, John works with manufacturing clients and other businesses, offering them industry expertise and decades of experience studying and understanding accounting and tax best practices.


  • American Institute of Certified Public Accountants (AICPA)
  • Illinois CPA Society (ICPAS)
  • Mother McAuley High School, Former Trustee


  • Bachelor of Science in Commerce, Accounting, Santa Clara University
  • Certified Public Accountant (CPA)

John Scanlan's Areas Of Expertise