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Fiscal Year | Returns Filed* | Revenue Agent Audits | Tax Auditor Audits | Total District Audits | Percent Audited |
1981 | 93,052,000 | 289,507 | 1,193,079 | 1,482,586 | 1.59 |
1982 | 94,013,000 | 285,526 | 1,066,537 | 1,352,063 | 1.44 |
1983 | 95,419,000 | 277,945 | 1,001,865 | 1,279,810 | 1.34 |
1984 | 95,541,300 | 276,182 | 859,351 | 1,135,533 | 1.19 |
1985 | 96,496,900 | 332,574 | 810,943 | 1,143,517 | 1.19 |
1986 | 99,529,000 | 298,943 | 732,456 | 1,031,399 | 1.04 |
1987 | 101,750,800 | 317,525 | 610,439 | 927,964 | 0.91 |
1988 | 103,251,000 | 352,808 | 532,326 | 885,134 | 0.86 |
1989 | 107,029,000 | 242,983 | 542,664 | 785,647 | 0.73 |
1990 | 109,868,400 | 202,570 | 516,749 | 719,319 | 0.65 |
1991 | 112,304,900 | 200,735 | 499,886 | 700,621 | 0.62 |
1992 | 113,829,200 | 210,166 | 536,640 | 746,806 | 0.66 |
1993 | 114,718,900 | 250,712 | 505,539 | 756,251 | 0.66 |
1994 | 113,754,400 | 364,016 | 456,216 | 820,232 | 0.72 |
1995 | 114,683,400 | 338,605 | 458,880 | 797,485 | 0.70 |
1996 | 116,059,700 | 252,430 | 509,420 | 761,850 | 0.66 |
1997 | 118,362,600 | 209,781 | 505,834 | 715,615 | 0.60 |
1998 | 120,342,400 | 168,054 | 383,366 | 551,420 | 0.46 |
1999 | 121,829,470 | 124,270 | 259,197 | 383,467 | 0.31 |
2000 | 124,887,140 | 91,351 | 159,014 | 250,365 | 0.20 |
2001 | 127,097,210 | 77,994 | 124,507 | 202,501 | 0.16 |
Source: Internal Revenue Service. Includes audits conducted under the Assistant
Commissioner (International) outside the jurisdiction of regular IRS district
offices. From 2001.
*Returns filed during previous calendar year.
Figures prior to 1998 include a small number of correspondence audits conducted by tax examiners from district offices. IRS data systems prior to 1998 did not allow them to be segregated out but treated them as if they were conducted by tax auditors. In 1998 there were 16,341 of such tax examiner correspondence audits.