Minnesota's big corporations, along with some wealthy individuals, are parking so much money in offshore tax havens that the state could be losing out on hundreds of millions of dollars in tax revenue.
An analysis that an interest group released Tuesday put the figure at nearly $2 billion a year, more than in all but five other states. Most of that was driven by corporate activity, but individual taxpayers accounted for about $629 million of the $1.95 billion in lost tax revenue in 2011.
"This isn't just some esoteric issue that happens in Washington, but it's something that blows a hole in state budgets at a time that states are cutting to the bone," said Dan Smith of the U.S. Public Interest Research Group, one of the report's authors.
The report arrives as Minnesotans roll up their sleeves to tackle a series of tax reforms included in the budget proposal Gov. Mark Dayton unveiled last month. The reforms include several provisions aimed at reining in corporate tax avoidance.
Minnesota Revenue Commissioner Myron Frans, who is leading the tax overhaul, said he thinks the study perhaps overstates the local impact. But he did not dispute the general findings.
"We do see a problem," Frans said in an interview. "We believe that some of the activities by companies can avoid Minnesota tax. The governor's package addresses some of these."
The report from the Public Interest Research Group found that offshore tax avoidance cost state governments across the country nearly $39.8 billion in lost revenue in 2011. It follows a similar study released last month by the nonpartisan Congressional Research Service, "Tax Havens: International Tax Avoidance and Evasion," that puts the annual cost of offshore tax strategies at about $100 billion a year.
Smith said he thinks the latest report is among the first to examine the state-level impact from lost state and federal tax revenue from the widespread use of offshore tax shelters. It defines tax havens as countries or jurisdictions with minimal or no taxes, such as Bermuda, the Cayman Islands or Ireland.