TMW's Brad Doll Examines Washington State's Property Tax Exemption for Anaerobic Digesters and Alternative Fuels

Published Jan 13, 2014

Intending to encourage the production of electricity, reduce greenhouse gas emissions and retain viable agricultural operations, the Washington State Legislature in 2008 enacted a property tax exemption for anaerobic digesters. Despite the Legislature’s intent, anaerobic digesters are not yet commonplace in Washington, in part because interpretation of the tax exemption has been left up to individual county assessors.

Tupper Mack Wells attorney Brad Doll has written an article which describes the Legislature's tax exemption, gives recent examples of overly narrow interpretations of the exemption, and provides a starting point for operators of potentially affected facilities to review eligibility for the exemption. For more information, contact Brad at

  • To see Brad’s article, click here.