Taxpayer Delinquent Return Investigations

Fiscal Year Investigations
1992 1,525,056
1993 1,468,914
1994 1,613,307
1995 1,937,841
1996 1,815,340
1997 1,635,782
1998 1,882,680
1999 2,313,873
2000 1,670,447
2001 1,445,436
2002 1,422,000
2003 2,490,000
2004 2,051,000
2005 2,558,000
2006 2,373,000
2007 2,587,000
2008 1,972,000
2009 2,210,527
2010 2,273,000
2011 2,404,000
2012 1,973,000
2013 1,598,000
2014 1,563,000
Source: Internal IRS collection reports  

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