Part of the reason so many Americans don’t pay federal income taxes is that Republicans have passed a series of very large tax cuts that wiped out the income-tax liability for many Americans. That’s why, when you look at graphs of the percent of Americans who don’t pay income taxes, you see huge jumps after Ronald Reagan’s 1986 tax reform and George W. Bush’s 2001 and 2003 tax cuts. So whenever you hear that half of Americans don’t pay federal income taxes, remember: Ronald Reagan and George W. Bush helped build that. (You also see a jump after the financial crisis begins in 2008, but we can expect that to be mostly temporary.)
Some of those tax cuts for the poor were there to make the tax cuts for the rich more politically palatable. “Do you think we wanted to include a welfare payment to people who don’t pay taxes and call it a tax cut?” A top Bush administration official once asked me. “No. But that’s what we needed to do to get it done.
Romney’s theory of the “taker class,” and why it matters
Also, the article notes that those people who aren’t paying income tax ARE paying out about 15 percent of their income in payroll taxes, so they’re still paying a greater percentage of their income than Romney is.
Basically: Fuck you, Mitt.