§ 677. Income for benefit of grantor
(a)
General rule
The grantor shall be treated as the owner of any portion of a trust, whether or not he is treated as such owner under section
674, whose income without the approval or consent of any adverse party is, or, in the discretion of the grantor or a nonadverse party, or both, may be—
(3)
applied to the payment of premiums on policies of insurance on the life of the grantor or the grantor’s spouse (except policies of insurance irrevocably payable for a purpose specified in section
170
(c) (relating to definition of charitable contributions)).
This subsection shall not apply to a power the exercise of which can only affect the beneficial enjoyment of the income for a period commencing after the occurrence of an event such that the grantor would not be treated as the owner under section
673 if the power were a reversionary interest; but the grantor may be treated as the owner after the occurrence of the event unless the power is relinquished.
(b)
Obligations of support
Income of a trust shall not be considered taxable to the grantor under subsection (a) or any other provision of this chapter merely because such income in the discretion of another person, the trustee, or the grantor acting as trustee or co-trustee, may be applied or distributed for the support or maintenance of a beneficiary (other than the grantor’s spouse) whom the grantor is legally obligated to support or maintain, except to the extent that such income is so applied or distributed. In cases where the amounts so applied or distributed are paid out of corpus or out of other than income for the taxable year, such amounts shall be considered to be an amount paid or credited within the meaning of paragraph (2) of section
661
(a) and shall be taxed to the grantor under section
662.