Important Changes for Fiscal Year 2019 IRS Data Book We redesigned the Fiscal Year 2019 IRS Data Book to provide more information on IRS compliance activities and service levels. As a result, many tables have been reordered and renumbered. Compare the new and old table numbers. The linked files are available as Microsoft Excel® files. A free Excel Viewer is available for download, if needed. Examination Coverage: Individual Income Tax Returns Examined, by Size of Adjusted Gross Income and Fiscal Year NOTE: IRS Data Book Table 9b has been discontinued. A replacement data series is now available in Table 17a: Examination Coverage and Recommended Additional Tax After Examination, by Type and Size of Return, Tax Years 2010–2018. 2018XLS 2017XLS 2016XLS 2015XLS 2014XLS 2013XLS 2012XLS 2011XLS 2010XLS 2009XLS 2008XLS Return to the IRS Data Book home page