Washington state enacts new tax on wealthy

TL;DR

Washington State Adopts New Tax on Incomes Over $1 Million Topline The state of Washington is set to enact a law that will tax income over $1 million, marking a major break from its history of not having income tax and becoming the latest state to implement a so-called millionaires tax. Key Facts The 9.9% income tax will become effective at the start of 2028. Gov.