Title 26 › Subtitle Subtitle D— Miscellaneous Excise Taxes › Chapter 42— PRIVATE FOUNDATIONS; AND CERTAIN OTHER TAX-EXEMPT ORGANIZATIONS › Subchapter F— Tax Shelter Transactions › § 4965
Tax-exempt groups, like charities, tribal governments, 529 college savings programs, and certain retirement arrangements, owe a special tax if they take part in a prohibited tax shelter transaction. That means a "listed" transaction the IRS has flagged as abusive, or a confidential deal or one with contractual protection that must be reported. The tax equals the highest corporate tax rate applied to the greater of the entity's net income from the deal or 75 percent of the money it received from the deal. If the entity knew, or should have known, the deal was a prohibited tax shelter when it joined, the tax rises to the greater of 100 percent of that net income or 75 percent of the proceeds. Managers are on the hook too. Any manager who approves the deal while knowing, or having reason to know, it is a prohibited tax shelter owes $20,000 for each approval. These taxes apply on top of any other taxes or penalties. If the IRS flags a deal as abusive after an entity has already joined it, the entity still owes tax on income or proceeds from that point forward.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 4965
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73