Shane Griffiths
Senior Manager

Industry Expertise

Practice Focus


Shane has practiced public accounting since 2011. He primarily assists public and privately held clients with state and local tax matters—audits, refund requests, tax planning and structuring, and letter rulings—and provides insight on multistate income and franchise tax. His expertise also includes sales and use tax matters, including nexus, taxability analysis, voluntary disclosure, and pass-through issues such as withholding and composite filing. He primarily works with clients in the software and technology, aerospace, manufacturing and distribution, and retail industries.

Selected Publications

  • "Sales and Use Tax Opportunities" (LIFT, October 2018)
  • "Washington B&O Tax Annual Reconciliations of Apportionable Income Is Due by October 31 or Possibly Face Penalties" (Moss Adams Alert, September 2018)
  • "Universal Service Fund Support Distributions Are Subject to Washington’s Business and Occupation Tax" (Moss Adams Alert, July 2018)
  • "Washington B&O Tax Determination May Impact the Health Care Industry" (Moss Adams Insight, December 2016)

Selected Speaking Engagements

  • Reduced B&O Tax Rate for Aerospace and Defense in Washington
    (Moss Adams Webcast, February 2019)

Professional Affiliations

  • Member, American Institute of Certified Public Accountants
  • Member, Washington Society of Certified Public Accountants
  • Member, Washington State Bar


  • BA, accounting, Gonzaga University
  • JD, Gonzaga University School of Law
  • LLM, taxation, University of Washington School of Law