ordinary and necessary
Definitions from Case Law · United States Supreme Court
Definitions from Case Law
From 325 U.S. 365 - Bingham's Trust v. Commissioner of Internal Revenue · 1945Most cited · 961 citing opinions
The requirement of § 23(a)(2) that deductible expenses be 'ordinary and necessary' implies that they must be reasonable in amount and must bear a reasonable and proximate relation to the management of property held for the production of income.
How often courts cite the case defining “ordinary and necessary”
Court decisions citing the opinion that defined “ordinary and necessary” — 961 in all, by decade. Counts are citations to the defining case as a whole, not verified uses of the term. The dip in the most recent years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the latest years.