After a decedent dies, in the case of an estate, or after an income interest in a trust ends, the following rules apply:
(1) A fiduciary of an estate or of a terminating income interest shall determine the amount of net income and net principal receipts received from property specifically given to a beneficiary under the rules in articles three through five which apply to trustees and the rules in subdivision (5) of this section. The fiduciary shall distribute the net income and net principal receipts to the beneficiary who is to receive the specific property.