The laffer curve rearing its ugly, powerful head in Massachusetts

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Bloomberg

Residents exiting Massachusetts took a net of $4.2 billion in adjusted gross income with them in 2023, one of the largest totals in the country, after a tax on millionaires took effect.

The amount was an 8% year-over-year increase, according to Internal Revenue Service data, even as the total number of taxpayers leaving the state slowed.

This was the first year that residents were subject to a 4% surtax on incomes over $1 million after voters approved the levy in 2022 to fund schools and transportation.

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