501(c)4

A form of 501(c)(4) — An organization that complies with section 501(c)(4) of the U.S. federal tax code. A non-profit organization exempt from some federal income taxes, due to being dedicated social welfare purposes.

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Meanings

noun501(c)4 (plural 501(c)4s)

plural 501(c)4s

  1. alternativeAlternative form of 501(c)(4).
    1 more example

    One Nation, a new 501(c)4 linked to the Karl-Rove-backed American Crossroads super PAC, is spending more than $1.9 million on print, radio and digital ads highlighting the efforts of Illinois Sen. Mark Kirk, North Carolina Sen. Richard Burr, New Hampshire Sen. Kelly Ayotte, Ohio Sen. Rob Portman and Pennsylvania Sen. Pat Toomey to pass the “doc fix” legislation that realigned payments to Medicare providers with inflation.

    2015 May 12, Alexandra Jaffe, “First on CNN: New Rove-linked group spends $2M to boost GOP incumbents”, in CNN
Cite this entry
APA

501(c)4. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/501%28c%294

MLA

“501(c)4.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/501%28c%294. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “501(c)4,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/501%28c%294.

Source: 501(c)4 on Wiktionary, CC BY-SA 4.0.