“But to make Romney’s plan revenue neutral, deductions would also have to be removed for people with incomes below $200,000, and the effects of that would be significant, the study found. In fact, the elimination of the deductions would mean outright tax increases for everyone with incomes below $200,000. People with taxable income between $50,000 and $75,000, for example, would see an average net tax increase of $641. They’d save $984 from Romney’s rate cut, but lose $2,672 in write-offs.
The authors specifically noted that taxpayers with children whose income is below $200,000 would see their taxes go up by an average of $2,041 — the figure highlighted in Obama’s ad.
The reason for the increase is that the most popular tax breaks heavily benefit middle- and lower-income families, the 95 percent of the population earning less than $200,000 who carry mortgage debt and use employer-provided health insurance.”