In 1958, approximately two million filers (4.4% of all taxpayers) earned the $12,000 or more for married couples needed to face marginal rates as high as 30%. These Americans paid about 35% of all income taxes. And now? In 2010, 3.9 million taxpayers (2.75% of all taxpayers) were subjected to rates that were 33% or higher. These Americans—many of whom would hardly call themselves wealthy—reported an adjusted gross income of $209,000 or higher, and they paid 49.7% of all income taxes.

In contrast, the share of taxes paid by the bottom two-thirds of taxpayers has fallen dramatically over the same period. In 1958, these Americans accounted for 41.3% of adjusted gross income and paid 29% of all federal taxes. By 2010, their share of adjusted gross income had fallen to 22.5%. But their share of taxes paid fell far more dramatically—to 6.7%. The 77% decline represents the single biggest difference in the way the tax burden is shared in this country since the late 1950s.

The changes came about not so much by movements in rates but by the addition of tax credits for the poor and the elimination of exemptions for the wealthy. In 1958, even the lowest-tier filers, which included everyone making up to $5,000 annually, were subjected to an effective 20% rate. Today, almost half of all tax filers have no income-tax liability whatsoever, and many “taxpayers” actually get a net refund from the government. Those nostalgic for 1950s-era “tax fairness” should bear this in mind.

Source: Peter Schiff: The Fantasy of a 91% Top Income Tax Rate – WSJ