According to Citizens for Tax Justice they estimate that enacting the Buffett rule will raise $50 billion per year for the U.S. Treasury. That is $500 billion in a decade which is no chump change.
http://www.ctj.org/...
CTJ Calculates Buffett Rule Would Raise $50 Billion in One Year and Affect Only the Richest 0.08 Percent of Taxpayers
Although the Buffett rule is popular with the American people because it about fairness. But what is equally important is that the Buffett rule would raise $50 billion in revenue per year which is half a trillion per decade. This is a big deal.
Citizens for Tax Justice has calculated that President Obama’s “Buffett Rule” would, if in effect this year, raise $50 billion in a single year and affect only the richest 0.08 percent of taxpayers — that’s just eight percent of the richest one percent of taxpayers.