Lindsay Owens, president and CEO of Groundwork Collaborative, said the new data makes clear that “tax flight is nothing more than a myth, and should be given as much credence as flat-earthers.”
“If there was any merit to the myth that tax increases on New York’s wealthy drive them away, the new IRS data should show it,” said Owens. “It doesn’t—New York’s millionaire population kept climbing years after the state raised taxes on top earners.”
I would expect capital flight to be somewhat dose dependent but it’s pretty clear it’s a non-issue at the level of taxation we’re discussing these days.