Michael Willer

Overview

Michael Willer is a Principal in Ryan’s Downers Grove office, where he specializes in providing transaction tax consulting services to clients across a broad range of industries, including emerging technologies, manufacturing, retail, social media, sports marketing, and telecommunications. He advises organizations on complex sales and use tax matters with a focus on technical accuracy, practical execution, and sustainable outcomes.

With deep experience in transaction tax consulting and forensic accounting, Michael brings a disciplined, detail-oriented approach to client service. He actively supports Ryan’s technical development efforts as a member of the Firm’s T-TEC Committee and contributes to internal training initiatives. Michael is also a frequent speaker for Ryan clients and new hire programs and has presented for professional and academic organizations, reflecting his commitment to advancing transaction tax knowledge and application.

Education and Qualifications

Bachelor of Science, Accounting, University of Illinois Chicago

Certified Public Accountant (CPA), Registered in Illinois (Ryan is not a CPA firm.)

Experience and Achievements

Principal, Transaction Tax, Ryan, Downers Grove office

• Advises clients on transaction tax matters across diverse and emerging industries

• Supports internal training and forum coordination through T-TEC Committee involvement

Director, Sales and Use Tax, Ryan, Downers Grove office

Consultant, forensic accounting and claims services firm

Member, American Institute of Certified Public Accountants

Member, Illinois CPA Society

Member, Illinois Director’s Advisory Board

Member, Illinois State and Local Tax Committee

Member, Institute for Professionals in Taxation