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Audits of Income Tax Returns Filed by Individuals
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Correspondence Exams |
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| 1992 | 10.6 | 6.6 |
| 1993 | 9.2 | 6.6 |
| 1994 | 10.8 | 7.2 |
| 1995 | 16.2 | 7.0 |
| 1996 | 16.7 | 6.6 |
| 1997 | 12.8 | 6.1 |
| 1998 | 9.9 | 4.6 |
| 1999 | 9.0 | 3.1 |
| 2000 | 4.9 | 2.0 |
| 2001 | 5.8 | 1.6 |
| 2002 | 5.7 | 1.6 |
| 2003 | 6.5 | 1.6 |
| 2004 | 7.7 | 1.5 |
| 2005 | 9.3 | 1.8 |
| 2006 | 9.8 | 2.2 |
| 2007 | 10.3 | 2.3 |
| 2008 | 10.1 | 2.3 |
| 2009 | 10.3 | 2.3 |
| 2010 | 11.1 | 2.4 |
| 2011 | 11.1 | 2.8 |
| 2012 | 10.3 | 2.5 |
| 2013 | 9.6 | 2.4 |
| 2014 | 8.6 | 2.0 |
| 2015 | 8.4 | 1.8 |
| 2016 | 7.0 | 1.6 |
| 2017 | 6.2 | 1.4 |
| 2018 | 6.0 | 1.1 |
| 2019 | 4.5 | 0.9 |
| 2020 | 2.9 | 0.6 |
Source: Internal IRS AIMS reports, 1992-2020.