Service to taxpayers

SOI Tax Stats - IRS Data Book - Service to Taxpayers section page.
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SOI Tax Stats - Papers - 2006 National Tax Association conference

2006 NTA Page
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Tax Professionals

SOI Tax Stats - SOI Bulletin: Fall 1997

Fall 1997 Bulletin Articles
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SOI tax stats - Private foundations harmonized microdata files (ASCII)

SOI Form 990-PF Study Data, Historical Microdata File (ASCII format)
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SOI Tax Stats - SOI Bulletin: Spring 2002

SOI Bulletin - Spring 2002
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SOI Tax Stats - SOI Bulletin: Winter 2001-2002

SOI Bulletin - Winter 2001-2002
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09sb1mn531135.xls

2009 Corporation Source Book of Statistics of Income Returns of Active Corporations

08sb1mn531135.xls

2008 Corporation Source Book of Statistics of Income Returns of Active Corporations

07sb1mn531135.xls

2007 Corporation Source Book of Statistics of Income Returns of Active Corporations

SOI Tax Stats — Tax stats at a glance

The Statistics of Income (SOI) program produces data files compiled from samples of tax and information returns filed with the IRS. There's a wealth of information about the financial composition of individuals, business taxpayers, tax exempt organizations and more. Look here for some summary statistics from these files, as well as files from other IRS sources.
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