The Athletic has an interview with Boston Celtics forward Grant Williams about his decision to move to the Dallas Mavericks: "In Boston, it's really like $48 million with the millionaire's tax, so $54 million in Dallas is really like $58 million in Boston and $63 million in L.A."
The Boston Herald noticed this and headlined it "Millionaire's Tax helped push Celtic forward to Dallas Mavericks."
This is a nicely concrete example of the effects of this tax in pushing talent out of Massachusetts and in increasing the cost of Massachusetts employers to retain talent. It was entirely predictable—opponents of the tax predicted that this would be the effect, as it has been when other states adopted similar measures. Yet the voters in Massachusetts narrowly approved the millionaire's tax anyway in November 2022 after a fraudulent union-backed mail campaign. The new 4 percent tax in the Bay State comes on top of the 5 percent that is already in place, bringing the total marginal state income tax rate to 9 percent.
 Pictured: Grant Willams, playing for University of Tennessee on January 29, 2019. (Image source: Gamecock Central/Wikimedia Commons) |
