The top 1 percent of earners will pay an average tax bill of $525,231, up more than $36,000 from last year, according to the nonpartisan Tax Policy Center. It will surge to $670,000 for 2014 taxes.
The top 0.1 percent will see even bigger tax bills. That group will have an average tax burden of $2.6 million for 2013 taxes, up from $2.3 million in 2012.
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The incomes of the top 1 percent are also going up, of course. The average income of the top 1 percent is expected to rise from $1.67 million in 2013 to just over $2 million in 2014.
But the average tax rate that top earners actually pay is also going up. The average tax rate for the top 1 percent will go from 27.2 percent for 2012 taxes to 31.4 percent for 2013 taxes, and 33.4 percent for 2014 taxes, according to the Tax Policy Center.
The top 10 percent of taxpayers paid an estimated 52.9 percent of federal taxes in 2013 and their share is expected to rise to 55.2 percent by 2017.
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The question many are asking this month (on both the right and the left) is how much more the wealthy can be taxed?
Some Democrats are taking a cue from "Capital in the Twenty-First Century," a new book by French economist Thomas Piketty that advocates a tax rate of 80 percent kick in on annual incomes of more than $500,000, or possibly $1 million.
Conservatives contend that the tax increases in 2013 are already stifling the investment and spending of the wealthy, and rates should be lower.