19-20-1205. Recovery of overpayments. (1) Subject to subsection (2), an amount owed to the retirement system for overpaid benefits must be recovered as follows:

(a) from any retirement benefit or other amount payable by the retirement system to a benefit recipient; or

(b) through repayment by a benefit recipient who received an overpayment or by the estate of the benefit recipient.

(2) If an overpayment resulted from or was furthered by an employer's error, the employer is jointly and severally liable for all amounts owed to the retirement system for the overpayment.