Exempt Organizations Technical Guide›TG 57: Taxes on Net Investment Income – IRC Section 4940›Table of Contents
G. Statute of Limitations
0824 Publ 5580 (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States
(1) The Form 990-PF initially controls all statutory limitations periods for assessment
and collection of taxes (or “statutes”) with respect to the excise taxes. (See Section 6501(l)(1) and Treas. Reg. 301.6501(n)-1(a).) The following table identifies the Code section, the taxable party, the return used to report the tax, and the year in which the tax is imposed.
| Code Section | Liable Party |
Tax Form | Tax year |
|---|---|---|---|
| 4940(a) | PF | 990-PF | On the same form, same year. |
| 4941(a)(1) | Self-dealer | *4720 |
If individual: Year of Form 1040, U.S. Individual Income Tax Return, in which transaction occurs. All others: Year of Form 1041 (trust), 1065 (partnership), or 1120 (corporation) in which transaction falls. * |
| 4941(a)(2) | FM | *4720 | Form 1040 year in which transaction occurs. |
| 4942(a) | PF | 4720 | Same year of Form 990-PF |
| 4943(a)(1) | PF | 4720 | Same year of Form 990-PF |
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| 4944(a)(1) | PF | 4720 | Same year of Form 990-PF |
|---|---|---|---|
| 4944(a)(2) | FM | *4720 | Form 1040 year in which transaction occurs. |
| 4945(a)(1) | PF | 4720 | Same year of Form 990-PF |
| 4945(a)(2) |
FM |
*4720 |
Form 1040 year in which transaction occurs. |
| *Contact Area Counsel if considering asserting tax on indirect self- dealing against a disqualified person partner or other owner of the disqualified person entity (in addition to asserting tax on self-dealing against the entity). |
(2) The rules for the length of statutory period for assessing Chapter 42 taxes are:
(3) See table below for Section 4942 statute modifications:
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| 4942(g)(3) Failure to distribute deficiency |
+1 year to statute date | 6501(l)(2) |
|---|---|---|
| 4942(g)(2)(B)(ii) Failure to set aside deficiency |
+2 years to statute date | 6501(l)(3) |
(4) Prepare and obtain statute extensions for all parties to an excise tax. This entails
extensions on the foundation, disqualified persons, and foundation managers, if applicable. Use Form 872, Consent to Extend the Time to Assess Tax, to secure the extension.
Note: A statute extension for the foundation’s return doesn’t extend the statute for a disqualified person or foundation manager. Separate statute extensions must be secured for all parties. Refer to IRM 25.6.22, Extension of Assessment Statute of Limitations by Consent, for further information regarding statute extensions.
Caution: You may use Form 872-A, Special Consent to Extend the Time to Assess Tax, as an alternative to allow an open-ended extension, until terminated by the submission of Form 872-T, Notice of Termination of Special Consent to Extend the Time to Assess Tax. Use Form 872-A only for cases with valid formal protests to Appeals.
(5) The statutory limitations period for Chapter 42 taxes reportable on Form 4720
ordinarily begins with the filing of Form 990-PF, whether or not Form 4720 is filed. If there are multiple acts/failures to act or taxable events over a period of years, the Forms 4720 will have separate statutes for each transaction. When extending the statute for the Form 4720, extend the statute for all the transactions.
Note: For discrete acts, if the statute expired for the year the act occurred, no assessment can be made for any subsequent year. However, for continuing transactions under Section 4941, even if the statute expired for the year in which the original transaction occurred, tax for each open year may be asserted (because a new act is deemed to occur every year within the taxable period). Similarly, an excess business holding acquired in a closed year of the foundation that is still held by the foundation in one or more open years is subject to Section 4943 tax for an open year, assuming the holding is still an excess business holding.
(6) When preparing the extensions, reference the specific Code section in the type of
tax. Use “excise (Section 494X)”. If extending multiple excise tax code sections, state “excise (Sections 494X and 494Y)”. If extending both income and excise taxes, state “income and/or excise (Section 494X)”. It’s recommended that a consent for both income and excise tax be used only when a private foundation may be liable for both excise tax under Section 4940 on its investment income
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and income tax (such as unrelated business income tax). This is because a regular Form 872 is used to extend the statute for these taxes, based on the foundation’s taxable year and not taxable periods arising from taxable events (which require using a modified Form 872).
(7) Extensions for Section 4941 through Section 4945 taxes require a modification of
the Form 872. Replace the phrase “on any returns made by or for the above taxpayer(s) for the period(s) ended” with “from the above taxpayer(s) for the years that are fully or partially within the taxable period(s) that began”. Use the date of the first act or failure to act (or taxable event) for the start of the taxable period.
(8) If there are multiple acts in a single tax year that trigger Chapter 42 taxes, you
may list them on the modified Form 872.
(9) For each year in which acts or failures to act occur which give rise to Chapter 42
taxes, including for deemed or continuing transactions (such as loan transactions in which each year the loan is outstanding, a new or separate transaction is created), secure a modified Form 872. Separate consents for each year in which new or continuing transactions occurred should be obtained.
(10) As the Section 4940 tax is assessed on the Form 990-PF, prepare any statute
extensions for Section 4940 taxes using the regular Form 872. Associate the statute extension with the appropriate Form 990-PF.
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