Ohio Rev. Code § 1321.571: General loan alternative interest rate.

As an alternative to the interest permitted in division (A) of section 1321.57 and in division (B) of section 1321.58 of the Revised Code, a registrant may contract for and receive interest at any rate or rates agreed upon or consented to by the parties to the loan contract or open-end loan agreement, but not exceeding an annual percentage rate of twenty-five per cent.