N.Y. Estates, Powers & Trusts Law § 11-2.1
(a) Duty of trustee as to receipts and expenditures.
(b) What is income and what is principal; definitions.
(1) Income is the return in money or property derived from the use of principal, including return received as:
(2) Principal is property, disposed of in trust, the income from which is payable to or to be accumulated for an income beneficiary and the title to which is ultimately to vest in the person entitled to the future estate. Principal includes:
(c) When right to income arises; apportionment of income or other receipt.
(d) Income earned during administration of a decedent's estate.
(3)
(e) Distributions of corporations or associations.
(3) For the purpose of determining whether a will, deed or other instrument which creates or declares a trust has directed that a distribution of shares described in subparagraph (2) is income in a manner other than that provided in subparagraph (2), the following rules apply unless different rules are provided in the will, deed or other instrument:
(4)
(9) Except as provided in subparagraphs (2), (4), (5), (6) and (7), all distributions of corporations or associations are income including:
(f) Bond premium and discount.
(h) Disposition of natural resources.
(k) Underproductive property.
(l) Charges against income and principal.
(o) Definitions. As used in this section: