The linked files are available as Microsoft Excel® files. A free Excel Viewer is available for download, if needed. Receipts of Forms 8976, Notices of Intent To Operate Under Section 501(c)(4) NOTE: In prior editions of the IRS Data Book, Table 13 was presented as Table 24b. 2020 XLSX 2019 XLSX 2018 XLS 2017 XLS 2016 XLS Return to the IRS Data Book home page
