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About Publication 501, Dependents, Standard Deduction, and Filing Information

Publication 501 discusses some tax rules that affect every person who may have to file a federal income tax return.

SOI tax stats - Receipts of Form 8976, notices of intent to operate under Section 501(c)(4) - IRS Data Book Table 13

Closures of applications for tax-exempt status, by organization type and Internal Revenue Code section
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SOI tax stats Charities and Other Tax Exempt Organizations Statistics

This section contains statistical tables, articles, microdata, and other information on charities and other tax-exempt organizations, those exempt from income tax under Sections 501(c)(3) and 501(c)(4)-(9) of the Internal Revenue Code.
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SOI tax stats - 2021 charities and other tax-exempt organizations microdata files

The data are contained in ASCII flat files. Documentation to assist with the files is included. The samples include Internal Revenue Code section 501(c)(3) organizations and section 501(c)(4)–(9) organizations. Sampling rates ranged from 1 percent for small-asset classes to 100 percent for large-asset classes. Microdata records contain information on balance sheets and income statements, as well as weights (to estimate the population), for each organization.
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SOI Tax Stats - Charities and other tax-exempt organizations study metadata

Information about the data sources and limitations, as well as the terms and concepts, used in the annual Statistics of Income study of exempt organizations.
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SOI Tax Stats - 1992 Charities and tax-exempt microdata files

1992 Charities & Tax-Exempt Microdata Files
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Tax Professionals

SOI Tax Stats - 1995 Charities and tax-exempt microdata files

1995 Charities & Tax-Exempt Microdata Files
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SOI Tax Stats - 1997 Charities and tax-exempt microdata files

1997 Charities & Tax-Exempt Microdata Files
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SOI Tax Stats - 1993 Charities and tax-exempt microdata files

1993 Charities & Tax-Exempt Microdata Files
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SOI Tax Stats - 1991 Charities and tax-exempt microdata files

1991 Charities & Tax-Exempt Microdata Files
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SOI Tax Stats - 1990 Charities and tax-exempt microdata files

1990 Charities & Tax-Exempt Microdata Files
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