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  1. 26 U.S. Code § 6033 - Returns by exempt organizations

  2. Proxy tax: Tax-exempt organization fails to notify members …

  3. Guidance Under Section 6033 Regarding the Reporting …

  4. Sec. 6033. Returns By Exempt Organizations

  5. 26 CFR § 301.6033-4 - LII / Legal Information Institute

  6. IRC Section 6033 (Returns by Exempt Organizations) | Tax Notes

  7. eCFR :: 26 CFR 1.6033-4 -- Required filing in electronic form for ...

  8. Internal Revenue Bulletin: 2021-34 | Internal Revenue Service

  9. 6033 - U.S. Code Title 26. Internal Revenue Code - FindLaw