Any amount which, under the terms of the governing instrument, is properly paid or credited as a gift or bequest of a specific sum of money or of specific property and which is paid or credited all at once or in not more than 3 installments. For this purpose an amount which can be paid or credited only from the income of the estate or trust shall not be considered as a gift or bequest of a specific sum of money.
Paragraph (1) shall apply with respect to any taxable year of an estate or a trust only if the executor of such estate or the fiduciary of such trust (as the case may be) elects, in such manner and at such time as the Secretary prescribes by regulations, to have paragraph (1) apply for such taxable year.
For the sole purpose of determining the amount of distributable net income in the application of sections 661 and 662, in the case of a single trust having more than one beneficiary, substantially separate and independent shares of different beneficiaries in the trust shall be treated as separate trusts. Rules similar to the rules of the preceding provisions of this subsection shall apply to treat substantially separate and independent shares of different beneficiaries in an estate having more than 1 beneficiary as separate estates. The existence of such substantially separate and independent shares and the manner of treatment as separate trusts or estates, including the application of subpart D, shall be determined in accordance with regulations prescribed by the Secretary.