Section 40-14-214 - Delinquency charges(a) With respect to a consumer credit sale, refinancing, or consolidation, the parties may contract for a delinquency charge on any installment not paid in full within ten (10) days after its scheduled due date in an amount not exceeding the greater of: (i) Five percent (5%) of the unpaid amount of the installment; or (ii) Ten dollars ($10.00). (b) A delinquency charge under subsection (a) of this section may be collected only once on an installment however long it remains in default. No delinquency charge may be collected if the installment has been deferred and a deferral charge (W.S. 40-14-215) has been paid or incurred until ten (10) days after the deferred due date. A delinquency charge may be collected at the time it accrues or at any time thereafter.(c) No delinquency charge may be collected on an installment which is paid in full within ten (10) days after its scheduled installment due date even though an earlier maturing installment or a delinquency charge on an earlier installment may not have been paid in full. For purposes of this subsection payments are applied first to current installments and then to delinquent installments.