Lawsuit Underway Against State Income Tax In Washington

The Center Square YT

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March 31st, 2026

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Washington Gov. Bob Ferguson has signed a new state income tax bill into law, marking a major shift in the state’s tax policy. The legislation is already facing legal challenges from opponents who argue it is unconstitutional. Attorney Jackson Maynard of the Citizen Action Defense Fund (CADF) discusses his organization’s lawsuit against the new income tax, outlining the legal arguments and what comes next. Former Washington Attorney General Rob McKenna is set to serve as lead attorney in the case challenging the law. In this video: Gov. Ferguson signs Washington’s new income tax law Legal challenge filed against the legislation Jackson Maynard breaks down the lawsuit Former AG Rob McKenna to lead the case What this means for Washington taxpayers Stay informed on the latest developments in Washington State politics, taxes, and the legal battle ahead.

The Center Square YT

The focus of The Center Square's work is state and local level government and economic reporting. A taxpayer sensibility distinguishes our work from other coverage of state and local issues. As a result of this approach, our audiences are better informed about the focus of state and local government and its cost to the citizens whose tax dollars fund governmental decisions.