Okla. Stat. tit. 14A, § 2-209
Subject to the provisions on rebate upon prepayment (Section 14A-2-210), the buyer may prepay in full the unpaid balance of a consumer credit sale, refinancing, or consolidation at any time without penalty.
Laws 1969, HB 1001, c. 352, § 2-209, emerg. eff. July 1, 1969.