Why It Matters
A legal battle over Washington state’s new income tax could determine whether voters get to decide on the controversial levy this fall. The outcome affects tax policy in neighboring Washington and could influence Idaho discussions on state revenue measures.
What Happened
Brian Heywood, founder of the conservative political committee Let’s Go Washington, filed an emergency petition with the Washington Supreme Court on Friday seeking permission to pursue a referendum on the state’s new income tax law. Heywood submitted referendum paperwork on Monday after Governor Bob Ferguson signed the legislation.
The Secretary of State’s office declined to process the referendum on Tuesday, blocking the effort before signature collection could begin. Heywood’s emergency petition asks justices to direct Secretary of State Steve Hobbs to accept the referendum filing.
If the court grants the request, Heywood’s group must collect 154,455 valid voter signatures by June 10 to place the measure on the November ballot.
By The Numbers
- 154,455 signatures required by June 10
- 9.9% tax rate on income above $1 million
- Tax applies to household wage income starting in 2028
- $1 million threshold for the new levy
Zoom Out
Washington’s income tax debate reflects broader regional tensions over state revenue policy. The Pacific Northwest has seen growing pressure for new tax measures as state budgets expand. Idaho lawmakers have consistently rejected similar proposals, maintaining the state’s appeal to businesses and residents seeking lower tax burdens.
The referendum effort follows Heywood’s previous successful ballot initiatives on parental rights and transgender sports participation, which are set for November voters. Let’s Go Washington has become a major force in conservative activism in the state.
What’s Next
The Washington Supreme Court must decide whether to grant accelerated review of Heywood’s emergency petition. A favorable ruling would restart the signature collection timeline. Without court intervention, the referendum effort cannot proceed, and the income tax law will take effect as scheduled in 2028.
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