Voters in Washington will decide on a ballot measure that would repeal legislation establishing an income tax for certain households and ban income taxes altogether on Nov. 3, 2026.
More specifically, the measure — known as I-645 — is an Initiative to the People, a type of initiated state statute, that would repeal provisions of Senate Bill 6346 (SB 6346) that enacted a 9.9% tax on household income exceeding $1 million, effective in 2028. Additionally, the measure would prohibit taxes on income in general, and define income as "any gain or benefit measured in money derived from an individual's capital, labor, property, or other source."
The Washington secretary of state's office certified the initiative for the ballot on July 15, 2026, stating that a 3% sampling of the petition's signatures showed enough valid signatures and that further review was not required.
