The linked files are available as Microsoft Excel® files. A free Excel Viewer is available for download, if needed. Delinquent collection activities by fiscal year NOTE: In prior editions of the IRS Data Book, Table 27 was presented as Table 25. 2023 XLSX 2022 XLSX 2021 XLSX 2020 XLSX 2019 XLSX 2018 XLS 2017 XLS 2016 XLS 2015 XLS 2014 XLS 2013 XLS 2012 XLS 2011 XLS 2002–2010 XLS 1994–2001 XLS Return to the IRS Data Book home page
