Title 26Internal Revenue CodeRelease 119-73

§4948 Application of taxes and denial of exemption with respect to certain foreign organizations

Title 26 › Subtitle Subtitle D— - Miscellaneous Excise Taxes › Chapter CHAPTER 42— - PRIVATE FOUNDATIONS; AND CERTAIN OTHER TAX-EXEMPT ORGANIZATIONS › Subchapter Subchapter A— - Private Foundations › § 4948

Last updated Apr 6, 2026|Official source

Summary

A 4% tax must be paid each year on the U.S.-source gross investment income of any foreign organization that is treated as a private foundation. “Gross investment income” and “sources within the United States” are defined by other tax rules (see sections 4940(c)(2) and 861). If a foreign organization gets most of its support from outside the United States, most special private-foundation rules (including sections 507 and 508 and the rest of this chapter except the 4% rule) do not apply. But if such an organization engaged in a “prohibited transaction” after December 31, 1969, it is not exempt under section 501(a). A “prohibited transaction” means the kinds of acts that would trigger penalties under sections 6684 or 507 for a domestic foundation (and involves “disqualified persons” as defined in section 4946). The Secretary will notify the organization and publish that notice in the Federal Register the same day. Under rules the Secretary makes, the organization can apply for exemption starting with the second taxable year after notice; if the Secretary is satisfied it won’t repeat the act, exemption can be restored from the year the claim is filed. Donors cannot claim deductions under sections 170, 545(b)(2), 642(c), 2055, 2106(a)(2), or 2522 for gifts or bequests made after the Secretary’s published notice for any taxable year in which the organization is not exempt.

Full Legal Text

Title 26, §4948

Internal Revenue Code — Source: USLM XML via OLRC

(a)In lieu of the tax imposed by section 4940, there is hereby imposed for each taxable year on the gross investment income (within the meaning of section 4940(c)(2)) derived from sources within the United States (within the meaning of section 861) by every foreign organization which is a private foundation for the taxable year a tax equal to 4 percent of such income.
(b)section 507 (relating to termination of private foundation status), section 508 (relating to special rules with respect to section 501(c)(3) organizations), and this chapter (other than this section) shall not apply to any foreign organization which has received substantially all of its support (other than gross investment income) from sources outside the United States.
(c)(1)A foreign organization described in subsection (b) shall not be exempt from taxation under section 501(a) if it has engaged in a prohibited transaction after December 31, 1969.
(2)For purposes of this subsection, the term “prohibited transaction” means any act or failure to act (other than with respect to section 4942(e)) which would subject a foreign organization described in subsection (b), or a disqualified person (as defined in section 4946) with respect thereto, to liability for a penalty under section 6684 or a tax under section 507 if such foreign organization were a domestic organization.
(3)(A)Except as provided in subparagraph (B), a foreign organization described in subsection (b) shall be denied exemption from taxation under section 501(a) by reason of paragraph (1) for all taxable years beginning with the taxable year during which it is notified by the Secretary that it has engaged in a prohibited transaction. The Secretary shall publish such notice in the Federal Register on the day on which he so notifies such foreign organization.
(B)Under regulations prescribed by the Secretary, any foreign organization described in subsection (b) which is denied exemption from taxation under section 501(a) by reason of paragraph (1) may, with respect to the second taxable year following the taxable year in which notice is given under subparagraph (A) (or any taxable year thereafter), file claim for exemption from taxation under section 501(a). If the Secretary is satisfied that such organization will not knowingly again engage in a prohibited transaction, such organization shall not, with respect to taxable years beginning with the taxable year with respect to which such claim is filed, be denied exemption from taxation under section 501(a) by reason of any prohibited transaction which was engaged in before the date on which such notice was given under subparagraph (A).
(4)No gift or bequest shall be allowed as a deduction under section 170, 545(b)(2), 642(c), 2055, 2106(a)(2), or 2522, if made—
(A)to a foreign organization described in subsection (b) after the date on which the Secretary publishes notice under paragraph (3)(A) that he has notified such organization that it has engaged in a prohibited transaction, and
(B)in a taxable year of such organization for which it is not exempt from taxation under section 501(a) by reason of paragraph (1).

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

2004—Subsec. (c)(4). Pub. L. 108–357 struck out “556(b)(2),” after “545(b)(2),” in introductory provisions. 1976—Subsec. (c). Pub. L. 94–455 struck out “or his delegate” after “Secretary” wherever appearing.

Statutory Notes and Related Subsidiaries

Effective Date

of 2004 AmendmentAmendment by Pub. L. 108–357 applicable to taxable years of foreign corporations beginning after Dec. 31, 2004, and to taxable years of United States shareholders with or within which such taxable years of foreign corporations end, see section 413(d)(1) of Pub. L. 108–357, set out as an Effective and Termination Dates of 2004

Amendments

note under section 1 of this title.

Reference

Citations & Metadata

Citation

26 U.S.C. § 4948

Title 26Internal Revenue Code

Last Updated

Apr 6, 2026

Release point: 119-73