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Abstract: 

This article considers a widely noted decision of the Supreme Court of Washington, Quinn v. Washington, concluding that a state capital gains tax enacted in 2021 is not subject to the stringent limitations in the state constitution applicable to property taxes. That result was a surprise to many in that Washington courts for nearly a century had treated income taxes as property taxes for this purpose, and what is a tax on realized capital gains other than an income tax? This article sets out the constitutional requirements, explains the taxing statute, and critiques the Court’s decision.

Keywords: Quinn v. Washington, capital gains tax, income tax, property tax, excise

Affiliations:  1: Case Western Reserve University School of Law.