US: The Richest 0.001%

It is the first time the IRS has ever broken out income tax data at the very top end of the earnings spectrum. Previous releases have shown the top 1 percent and the top 0.1 percent of filers, but the new data drill deeper. There were a little under 1,400 income tax returns filed in that very richest sliver of data in 2012, the agency reports, with an average income of roughly $161 million for the year.
The poorest filer to qualify for that group in 2012 made $62,068,187 in adjusted gross income (AGI). Like a tax wonk’s version of the “must be this high to ride” sign at a carnival, these threshold income levels for each grouping in the IRS data offer working definitions of the economic class each category depicts.


from here