Skip to content
  • Partner, Eisner Advisory Group LLC
Send a Message

John Clausen is a Tax Partner in the firm's State and Local Tax Group. With 30-years of experience in public accounting, John’s expertise focuses on state and local income taxation.

John has significant experience serving clients of all sizes, from start-ups to large established entities and individuals and he primarily focuses on technology & life Sciences, financial services, and manufacturing industries. He assists clients in determining and assessing their state tax obligations related to their state "footprint," such as the impact of making sales to states outside of their home states, maintaining employees in states, and engaging contractors or vendors in states. Furthermore, John's vast experience enables him to apply the complex state "apportionment" rules to determine state income taxes for multi-state businesses. He also provides invaluable assistance to individuals with state residency transitions, particularly when moving from states with high tax rates to states with lower tax rates or no income taxes.

Prior to joining the firm, John was a Managing Director at a leading accounting firm based in Seattle, Washington. He also has previous experience working with "Big 4" firms.

Furthermore, John frequently speaks at the Silicon Valley High Tech Tax Conference, sponsored by San Jose State University and Tax Executives Institute (TEI).


  • State & Local Tax
  • Technology & Life Sciences
  • Financial Services
  • Manufacturing

Credentials & Education

  • Certified Public Accountant (CPA)
  • University of California, Santa Barbara: BS, Business Economics
  • Golden Gate University, San Francisco: MS, Taxation


  • American Institute of Certified Public Accountants
  • California Society of Certified Public Accountants

Start a conversation with John