§ 6012. Persons required to make returns of income
(a)
General rule
Returns with respect to income taxes under subtitle A shall be made by the following:
(1)
(A)
Every individual having for the taxable year gross income which equals or exceeds the exemption amount, except that a return shall not be required of an individual—
(i)
who is not married (determined by applying section
7703), is not a surviving spouse (as defined in section
2
(a)), is not a head of a household (as defined in section
2
(b)), and for the taxable year has gross income of less than the sum of the exemption amount plus the basic standard deduction applicable to such an individual,