PULLMAN, Wash. – Tax evasion costs the United States billions in lost revenue each year, negatively impacting the economy. In today’s high‑tech world, some business owners are turning to sales suppression software, commonly referred to as “zappers,” to illegally hide sales to reduce their tax liability.

A panel of legal and regulatory tax experts will discuss the ethical impacts and repercussions of using sales suppression software 4:30–5:30 p.m. Wednesday, March 27, in Spark G45, at Washington State University. Their presentation “Sales Suppression Software: What It Is and How Using It Hurts Others and Could Land You Behind Bars, and What You Should Do If You See It,” will be livestreamed on the Carson College of Business website.

Panelists are:

  • Richard Ainsworth, professor of tax law, Boston University School of Law
  • Mike Chertrude, computer assisted audit manager, Washington Department of Revenue
  • Kim Triplett‑Kolerich, senior investigator, Washington State Office of the Attorney General

The event is by sponsored by WSU’s Howard D. and B. Phyllis Hoops Institute of Taxation Research and Policy. For more information, contact Jeff Gramlich, chair, WSU Hoops Institute of Taxation Research and Policy, at jeff.gramlich@wsu.edu or 509‑335‑5358.


Media contact:

  • Eric Hollenbeck, communications manager for business research, Carson College of Business, edhollenbeck@wsu.edu, 509‑335‑3597
  • Jeff Gramlich, chair, WSU Howard D. and B. Phyllis Hoops, Carson College of Business,  jeff.gramlich@wsu.edu, 509‑335‑5358