Regulations last checked for updates: Feb 13, 2026

Title 26 - Internal Revenue last revised: Feb 11, 2026
Searching within: All TitlesTitle 26Chapter IPart 301Subpart 0 - Time and Place for Paying Tax
§ 301.6166-1 - Extension of time for payment of estate tax where estate consists largely of interest in closely held business.

For provisions relating to the extension of time for payment of estate tax where estate consists largely of interest in closely held business, see §§ 20.6166-1 to 20.6166-4, inclusive, of this chapter (Estate Tax Regulations).

authority: 26 U.S.C. 7805.
source: 32 FR 15241, Nov. 3, 1967, unless otherwise noted.
cite as: 26 CFR 301.6166-1