'Marriage penalty' in Washington state's new millionaire tax stirs debateWashington state's first-ever income tax would impose a 9.9% tax on income of more than $1 million a year.{}

Washington state's first-ever income tax would impose a 9.9% tax on income of more than $1 million a year.https://www.cnbc.com/2026/03/20/washington-millionaire-tax-marriage.html