Title 26, Internal Revenue CodeRelease 119-110

§4965 Excise Tax on Certain Tax-exempt Entities Entering Into Prohibited Tax Shelter Transactions

Title 26 › Subtitle D — Miscellaneous Excise Taxes › CHAPTER 42 — PRIVATE FOUNDATIONS; AND CERTAIN OTHER TAX-EXEMPT ORGANIZATIONS › Subchapter F — Tax Shelter Transactions › § 4965

Last updated Sep 22, 2026|Official source

Summary

Tax-exempt entities must pay a special tax if they take part in certain banned tax-shelter deals. If the deal is already banned when the entity joins, the entity pays for that year and for later years it stays a party. If a deal is later listed as banned, the entity pays for any year it was a party. Someone who runs or approves the entity and knew or should have known the deal was banned must pay a separate tax for the year they approved it. The tax for the entity is the highest rate of tax under section 11 multiplied by the larger of two amounts: the entity’s net income from the banned deal for the year (after other taxes), or 75% of the deal proceeds the entity got that year. If the entity knew or should have known the deal was banned when it joined, the tax is the larger of 100% of net income from the deal or 75% of the proceeds. The knowing-participation increase does not apply to deals entered on or before the law’s enactment. An approving manager pays $20,000 for each approval. The Treasury Secretary can make rules about how to split income or proceeds over time, including rules tied to listing dates or the date 90 days after enactment. These taxes are in addition to any other taxes or penalties. Definitions (one line each): Tax-exempt entity — groups listed under several tax code sections, including 501(c)/(d) groups, qualified charities, Indian tribes, certain retirement and education programs (like 529 and 529A), and similar arrangements. Entity manager — a person who acts like an officer, director, or trustee, or who approves the entity’s participation. Prohibited tax shelter transaction — a listed transaction or a certain kind of reportable confidential or contract-protected transaction. Subsequently listed transaction — a deal an entity joined before it was later labeled a listed transaction.

Full Legal Text

Title 26, §4965

Internal Revenue Code, Source: USLM XML via OLRC

(a)Being a party to and approval of prohibited transactions
(1)Tax-exempt entity
(A)In general
If a transaction is a prohibited tax shelter transaction at the time any tax-exempt entity described in paragraph (1), (2), or (3) of subsection (c) becomes a party to the transaction, such entity shall pay a tax for the taxable year in which the entity becomes such a party and any subsequent taxable year in the amount determined under subsection (b)(1).
(B)Post-transaction determination
If any tax-exempt entity described in paragraph (1), (2), or (3) of subsection (c) is a party to a subsequently listed transaction at any time during a taxable year, such entity shall pay a tax for such taxable year in the amount determined under subsection (b)(1).
(2)Entity manager
If any entity manager of a tax-exempt entity approves such entity as (or otherwise causes such entity to be) a party to a prohibited tax shelter transaction at any time during the taxable year and knows or has reason to know that the transaction is a prohibited tax shelter transaction, such manager shall pay a tax for such taxable year in the amount determined under subsection (b)(2).
(b)Amount of tax
(1)Entity
In the case of a tax-exempt entity—
(A)In general
Except as provided in subparagraph (B), the amount of the tax imposed under subsection (a)(1) with respect to any transaction for a taxable year shall be an amount equal to the product of the highest rate of tax under section 11, and the greater of— (i)
(ii)75 percent of the proceeds received by the entity for the taxable year which—
(I)in the case of a prohibited tax shelter transaction (other than a subsequently listed transaction), are attributable to such transaction, or
(II)in the case of a subsequently listed transaction, are attributable to such transaction and which are properly allocable to the period beginning on the later of the date such transaction is identified by guidance as a listed transaction by the Secretary or the first day of the taxable year.
(B)Increase in tax for certain knowing transactions
In the case of a tax-exempt entity which knew, or had reason to know, a transaction was a prohibited tax shelter transaction at the time the entity became a party to the transaction, the amount of the tax imposed under subsection (a)(1)(A) with respect to any transaction for a taxable year shall be the greater of— (i)
(ii)75 percent of the proceeds received by the entity for the taxable year which are attributable to the prohibited tax shelter transaction.
This subparagraph shall not apply to any prohibited tax shelter transaction to which a tax-exempt entity became a party on or before the date of the enactment of this section.
(2)Entity manager
In the case of each entity manager, the amount of the tax imposed under subsection (a)(2) shall be $20,000 for each approval (or other act causing participation) described in subsection (a)(2).
(c)Tax-exempt entity
For purposes of this section, the term “tax-exempt entity” means an entity which is—
(1)described in section 501(c) or 501(d),
(2)described in section 170(c) (other than the United States),
(3)an Indian tribal government (within the meaning of section 7701(a)(40)),
(4)described in paragraph (1), (2), or (3) of section 4979(e),
(5)a program described in section 529,
(6)an eligible deferred compensation plan described in section 457(b) which is maintained by an employer described in section 457(e)(1)(A),
(7)an arrangement described in section 4973(a), or
(8)a program described in section 529A.
(d)Entity manager
For purposes of this section, the term “entity manager” means—
(1)in the case of an entity described in paragraph (1), (2), or (3) of subsection (c)—
(A)the person with authority or responsibility similar to that exercised by an officer, director, or trustee of an organization, and
(B)with respect to any act, the person having authority or responsibility with respect to such act, and
(2)in the case of an entity described in paragraph (4), (5), (6), or (7) of subsection (c), the person who approves or otherwise causes the entity to be a party to the prohibited tax shelter transaction.
(e)Prohibited tax shelter transaction; subsequently listed transaction
For purposes of this section
(1) Prohibited tax shelter transaction
(2)Subsequently listed transaction
The term “subsequently listed transaction” means any transaction to which a tax-exempt entity is a party and which is determined by the Secretary to be a listed transaction at any time after the entity has become a party to the transaction. Such term shall not include a transaction which is a prohibited reportable transaction at the time the entity became a party to the transaction.
(f)Regulatory authority
The Secretary is authorized to promulgate regulations which provide guidance regarding the determination of the allocation of net income or proceeds of a tax-exempt entity attributable to a transaction to various periods, including before and after the listing of the transaction or the date which is 90 days after the date of the enactment of this section.
(g)Coordination with other taxes and penalties
The tax imposed by this section is in addition to any other tax, addition to tax, or penalty imposed under this title.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

The date of the enactment of this section, referred to in subsecs. (b)(1)(B) and (f), is the date of enactment of Pub. L. 109–222, which was approved May 17, 2006.

Amendments

2014—Subsec. (c)(8). Pub. L. 113–295 added par. (8). 2007—Subsec. (c)(6). Pub. L. 110–172 substituted “section 457(e)(1)(A)” for “section 4457(e)(1)(A)”.

Statutory Notes and Related Subsidiaries

Effective Date

of 2014 AmendmentAmendment by Pub. L. 113–295 applicable to taxable years beginning after Dec. 31, 2014, see section 102(f)(1) of Pub. L. 113–295, set out as a note under section 552a of Title 5, Government Organization and Employees.

Effective Date

Pub. L. 109–222, title V, § 516(d), May 17, 2006, 120 Stat. 372, provided that: “(1) In general.—Except as provided in paragraph (2), the

Amendments

made by this section [enacting this section and amending section 6011, 6033, and 6652 of this title] shall apply to taxable years ending after the date of the enactment of this Act [May 17, 2006], with respect to transactions before, on, or after such date, except that no tax under section 4965(a) of the Internal Revenue Code of 1986 (as added by this section) shall apply with respect to income or proceeds that are properly allocable to any period ending on or before the date which is 90 days after such date of enactment. “(2) Disclosure.—The

Amendments

made by subsections (b) and (c) [amending section 6011, 6033, and 6652 of this title] shall apply to disclosures the due date for which are after the date of the enactment of this Act.”

Reference

Citations & Metadata

Citation

26 U.S.C. § 4965

Title 26, Internal Revenue Code

Last Updated

Sep 22, 2026

Release point: 119-110