Washington voters decided on eight ballot measures related to personal income taxes
Washington Gov. Bob Ferguson signed legislation imposing a 9.9% tax on household income above $1 million starting in 2028, marking a significant development in the state's long history of ballot measures on personal income taxes. The bill represents a major shift in Washington's tax policy after decades of voter decisions on income tax proposals.
Key Points
- SB 6346 imposes a 9.9% tax on household income exceeding $1 million beginning in 2028
- The measure follows decades of Washington ballot initiatives related to personal income taxes
- Gov. Ferguson (D) signed the legislation on March 30, 2026