- WA estate tax: Lawmakers roll back rate increase, fearing wealth exodus The Seattle Times
- A State of Wealthy Entrepreneurs Passes a ‘Millionaires’ Tax’ The New York Times
- ‘Millionaires tax’ receives Senate confirmation, heads to governor’s desk king5.com
- Income tax bill heads to WA governor for signature Washington State Standard
- Washington state lawmakers pass ‘millionaire’s tax’ Politico