U.S Code last checked for updates: Oct 22, 2026
§ 1378.
Taxable year of S corporation
(a)
General rule
(b)
Permitted year defined
For purposes of this section, the term “permitted year” means a taxable year which—
(1)
is a year ending December 31, or
(2)
is any other accounting period for which the corporation establishes a business purpose to the satisfaction of the Secretary.
For purposes of paragraph (2), any deferral of income to shareholders shall not be treated as a business purpose.
(Added Pub. L. 97–354, § 2,
cite as: 26 USC 1378