Jim DeSimpelare is a lecturer of accounting at the University of Michigan Law School. 

He has taught a variety of financial accounting and tax classes, most recently Advanced Financial Accounting and Advanced Federal Income Taxation. He has received several awards for outstanding teaching at the undergraduate and graduate level.

In addition to lecturing, DeSimpelare has been involved in a number of student and community activities, including serving as the faculty adviser for the National Association of Black Accountants, mentor of the University of Michigan Tax Challenge team, and faculty liaison for the Volunteer Income Tax Assistance program. He also is active in consulting, corporate seminars, and preparing candidates for the Certification Public Accountant (CPA) examination.

He received his CPA from the State of Michigan in 1987. Before joining the University of Michigan faculty, he taught at Indiana University and worked as a fixed income security analyst for Conseco, Inc., and as a tax consultant for Ernst & Young. He is a member of the Michigan Association of CPAs and the American Taxation Association.