Slate columnist Helaine Olen references a PPI report in this article on the complexity and cost of filing taxes.
“According to the Progressive Policy Institute, the average recipient of the earned income tax credit loses about $400 of his or her refunds to the preparers who helped complete and submit his or her taxes. For some, that’s almost 25 percent of what they received back from the federal government.”
Read the article in its entirety at Slate.