DOWNLOAD this Oklahoma Promissory Note Form to establish an agreement to lend money from one person to another in Oklahoma. This form allows the borrower and lender to determine what, if any, collateral will be used to secure the loan as well as other terms, including the interest rate to be charged within the confines of Oklahoma law and how and when the loan will be paid over the term of the loan.
The legal rate of interest in Oklahoma is 6% unless otherwise agreed to in writing. The maximum amount of interest chargeable in Oklahoma is 10%. OK ST T. 14A § 3-201 and OK ST T. 15 § 266