Okla. Admin. Code § 710:90-3-6
(a) Any employer who pays to the Commission more than the correct amount of tax not deducted or withheld from employees wages, may adjust the overpayment by entering the amount as a deduction on any future report. The report on which the adjustment is entered shall have attached:
(b) Alternatively, an employer may submit a claim for refund resulting from either the overpayment of tax not deducted or withheld or the overwithholding of tax repaid or reimbursed to any employee. Such claim for refund should not be made with any quarterly report. Refund claims shall include:
Amended at 31 Ok Reg 2451, eff 9-12-14