Atty. Robert L. "Bob" Mahon
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.
Profile Summary
About Robert L. "Bob" Mahon at a glance
Robert L. "Bob" Mahon is a tax attorney based in Seattle, Washington, practicing at Perkins Coie LLP. Admitted to practice in Washington, Washington State Bar Association. Educated at The University of Iowa (J.D., 1995) and Grinnell College (BA). Recognitions include Best Lawyers in America — Tax Law (2026), Best Lawyers in America — Special Focus: (2026), and Best Lawyers in America — State and Local Tax (2026). Serands clients in Seattle, WA and the surrounding metropolitan area.
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About
- 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
Practice Areas Explained
Robert L. "Bob" Mahon's Areas of Practice
Each practice area below reflects the types of cases Robert L. "Bob" Mahon handles, with a brief overview of what that area of law covers.
Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.
Robert L. "Bob" Mahon is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Washington →
Jurisdictional Context
Why local counsel matters in Washington
Practicing law in Washington. Legal matters in Washington are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Seattle are typically filed in the local municipal court or the appropriate Washington state district court, depending on subject matter and amount in controversy. An attorney licensed in Washington brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Washington courts without local counsel or pro hac vice admission.
Looking for additional Washington attorneys? Browse all attorneys in Seattle or all attorneys in Washington.
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