N.Y. Tax Law § 1505-A
(a)
(1) Every domestic insurance corporation and every foreign or alien insurance corporation, and every life insurance corporation described in subdivision (b) of section fifteen hundred one of this article, for the privilege of exercising its corporate franchise, or of doing business, or of employing capital, or of owning or leasing property in the metropolitan commuter transportation district in a corporate or organized capacity, or of maintaining an office in the metropolitan commuter transportation district, except corporations specified in subdivision (c) of section fifteen hundred twelve of this article, shall annually pay, in addition to the taxes otherwise imposed by this article, a tax surcharge on the taxes imposed under this article after the deduction of any credits otherwise allowable under this article as allocated to such district. Such taxes shall be allocated to such district for purposes of computing such tax surcharge upon taxpayers subject to tax under subdivision (b) of section fifteen hundred ten of this article by applying the methodology, procedures and computations set forth in subdivisions (a) and (b) of section fifteen hundred four of this article, except that references to terms denoting New York premiums, and total wages, salaries, personal service compensation and commissions within New York shall be read as denoting within the metropolitan commuter transportation district and terms denoting total premiums and total wages, salaries, personal service compensation and commissions shall be read as denoting within the state. If it shall appear to the commissioner that the application of the methodology, procedures and computations set forth in such subdivisions (a) and (b) does not properly reflect the activity, business or income of a taxpayer within the metropolitan commuter transportation district, then the commissioner shall be authorized, in the commissioner's discretion, to adjust such methodology, procedures and computations for the purpose of allocating such taxes by:
(d)