Tax Law
Robert L. "Bob" Mahon
Awarded Practice Areas
Biography
Bob Mahon, chair of the firm's State & Local Tax practice, focuses his practice on helping clients minimize state and local taxes and comply with state and local tax laws. Bob represents clients in state and local tax audits, refunds, appeals, and litigation, as well as assists clients with tax planning and business transactions. Bob is the past president of the Tax Section of the Washington State Bar Association and teaches State and Local Tax as an adjunct professor at the University of Washington School of Law. He is also a frequent speaker and author on state and local tax issues.
Overview
- The University of Iowa, J.D., graduated 1995
- Grinnell College, BA
- Washington, Washington State Bar Association
- American Bar Association - Member
- Journal of Multistate Taxation and Incentives - Editor-in-Chief
- Washington State Bar Association - Member
- Washington, Washington State Bar Association
- American Bar Association - Member
- Journal of Multistate Taxation and Incentives - Editor-in-Chief
- Washington State Bar Association - Member
- The University of Iowa, J.D., graduated 1995
- Grinnell College, BA
Client Testimonials
Awards & Focus

Named "Lawyer of the Year" by Best Lawyers® for:
- Tax Law, Seattle (2018)
- Tax Law, Seattle (2015)
Recognized in The Best Lawyers in America® 2026 for work in:
- Tax Law
Special Focus:
- State and Local Tax
Awards:
- Listed in Washington Law & Politics, "Rising Stars of Washington Law"
News & Media
Publications
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