N.Y. Comp. Codes R. & Regs. tit. 20, § 16-1.2
(a) Article 32 of the Tax Law imposes a tax which is the greater of the “basic tax” or the “ alternative minimum tax.” The basic tax is measured by “entire net income,” which is the same as the Federal taxable income which the taxpayer is required to report to the United States Department of the Treasury, with certain adjustments, and is imposed at the rate of nine percent on entire net income, or portion thereof allocated to New York State. (See Subpart 18-2 of this Title -Basic Tax, Measured by Entire Net Income.) The alternative minimum tax is measured by the greatest of three bases and is the tax when such alternative minimum tax results in a tax greater than the basic tax. The bases for computing the alternative minimum tax are:
Tax Law, §§ 1453, 1455