Tax Law, § 638(a)(3)
In determining the New York taxable income of a nonresident estate or trust, there must be added or subtracted, as the case may be, the amount of any of the modifications described in paragraphs (1) through (11) of this subdivision to the extent they are attributable to income, gain, loss or deduction derived from or connected with New York State sources which are included in the Federal taxable income of the estate or trust and which are not included in distributable net income.
Example:
A nonresident trust acquired a rented parcel of real property located in New York State in 1956. The basis of the property to the trust, as of the last day of the last taxable year for which article 16 of the Tax Law was effective, was $2,000 less for Federal income tax purposes than for New York State income tax purposes, as the trustee used accelerated depreciation on the Federal returns and straight-line depreciation on the New York State returns of the trust prior to 1960. The property was sold in 1985 at a profit of $10,000, which was considered a long-term capital gain for Federal income tax purposes. In accordance with the trust instrument, the trustee allocated all the gain to corpus. Consequently, although no portion of this gain was includible in the distributable net income of the trust, the $10,000 gain was properly included in the Federal taxable income of the trust. For New York State income tax purposes, the amount of the Federal gain is reduced by the modification for the higher New York State basis as prescribed by section 112.3(d) of this Title. However, the modification for the portion of the Federal gain representing the difference between the Federal and New York State bases is limited to 40 percent, as the gain was considered a long-term capital gain for Federal income tax purposes. The modification, therefore, is $800 (40 percent of $2,000).
The New York taxable income of a nonresident estate or trust does not include that proportion of those modifications described in paragraphs (a)(1) through (11) of this section to the extent that such modifications relate to items of income, gain, loss or deduction attributable to New York State sources which, pursuant to the terms of the governing instrument, are paid or permanently set aside during the taxable year for a New York State charitable purpose (see section 139.3(b) of this Article).
N.Y. Comp. Codes R. & Regs. Tit. 20 § 138.4