Driving away high earners, II

Maryland Millionaires go Missing:

Maryland couldn't balance its budget last year, so the state ... created a millionaire tax bracket, raising the top marginal income-tax rate to 6.25%. And because cities such as Baltimore and Bethesda also impose income taxes, the state-local tax rate can go as high as 9.45%. Governor Martin O'Malley, ... declared that these richest 0.3% of filers were "willing and able to pay their fair share." The Baltimore Sun predicted the rich would "grin and bear it."

One year later, nobody's grinning. One-third of the millionaires have disappeared from Maryland tax rolls. In 2008 roughly 3,000 million-dollar income tax returns were filed by the end of April. This year there were 2,000, which the state comptroller's office concedes is a "substantial decline." On those missing returns, the government collects 6.25% of nothing. Instead of the state coffers gaining the extra $106 million the politicians predicted, millionaires paid $100 million less in taxes than they did last year -- even at higher rates.

Note that there is another interpretation for these data: no one moved out of state, but there are fewer millionaires due to the downturn.