Neil Bergsman, director of the Maryland Budget and Tax Policy Institute, said while a number of people left the state between 2007 and 2010, others moved in. The net loss, he said, is “very small,” he said.
What’s more, he points out that the wealthy usually move because of a job change, life change or retirement rather than taxes.
“There is no evidence that tax structures are a significant determinant in their location choices,” Bergsman said.
What’s more, he said, Maryland is still minting high-earners and has among the highest incomes and highest concentration of millionaires in the country.
Other studies in New Jersey, Connecticut and Rhode Island have also failed to offer proof that taxes are the main driver of out-migration by the top earners. (See here and here). In some states, weather is a bigger driver of out-migration by the wealthy than taxes.