The department uncovered thousands of rich Americans who were hiding about $18 billion in offshore accounts arranged by that Swiss bank. ProPublica reported that I.R.S. audits dropped 42 percent from 2010 to 2017, a period in which the I.R.S. That costs the Treasury $3 billion annually in uncollected taxes. ProPublica reported that 36 percent of all I.R.S.

Source: New York Times December 26, 2018 00:00 UTC