Okla. Stat. tit. 70, § 70-17-120: Submission of contributions

The employer of each member shall submit all required school

reports and all employer and employee contributions of each member

due the Retirement System for payroll periods ending during the

calendar month within ten (10) days of the last day of each calendar

month. Any required school reports and employer and employee

contribution amounts not submitted to the Retirement System after

thirty (30) days from the end of the payroll month shall be subject

to a monthly late charge of one and one-half percent (1 1/2%) of the

unpaid balance to be paid by the employer to the Retirement System

compounding monthly for each month payment is not received. The

System may waive late fees for good cause shown.