Montana Title 15. Taxation § 15-1-504. Settlement of county treasurer with department

(1) Except as provided in subsections (2) and (3), the county treasurer, between the 1st and 20th days of each month, shall remit to the department all money belonging to the state that was collected by the county treasurer during the preceding month. The remittance must be accompanied by a detailed report upon a form that the department prescribes. The department may assess counties an interest charge of 10% a year on all money not remitted within 5 days from the time required by this section.

(2) By June 20 of each year, the county treasurer shall remit to the department an estimate of all money belonging to the state that was collected by the county treasurer by June 15, in addition to the amount collected during the preceding month. By July 15, the county treasurer shall remit all money belonging to the state that was collected by the county treasurer during the remainder of June.

(3) Beginning July 1, 2006, the county treasurer shall remit to the department of justice by the 20th of each month all state money that was collected by the county treasurer due to motor vehicle, vessel, and snowmobile transactions during the preceding month. The remittance must be accompanied by a detailed report upon a form prescribed by the department of justice. The department may assess counties an interest charge, at the rate of 10% a year, on all money that is not remitted by the prescribed time.