Harlan F. Stone,
Helvering v. Morgan's Inc. — Opinion of the Court
“ The term 'taxable year' means the calendar year, or the fiscal year ending during such calendar year, upon the basis of which the net income is computed under section 212 or 232 (section 953 or 984 of this title) . The term 'fiscal year' means an accounting period of twelve months ending on the last day of any month other than December. The term 'taxable year' includes, in the case of a return made for a fractional part of a year under the provisions of this title or under regulations prescribed by the commissioner with the approval of the Secretary, the period for which such return is made. ”
