Ohio Rev. Code Ann. § 5733.45
(C) Subject to division (D) of this section, the amount of the nonrefundable credit is the lesser of the amount described in division (C)(1) of this section or the amount described in division (C)(2) of this section.
(2) The product of the amounts described in division (C)(2)(a) to (C)(2)(c) of this section. The amount described in division (C)(2)(a) of this section shall be ascertained on the last day of the financial institution's taxable year immediately preceding the tax year.
(D)