Montana Title 33. Insurance and Insurance Companies § 33-18-213. Extension of credit to policyholder

(1) if credit is extended to a policyholder for not more than 30 days from the date the premium is due and the credit is not evidenced by a written instrument, no interest may be charged; or

(2) if credit is extended to a policyholder for more than 30 days from the date the premium is due and the credit is not evidenced by a written instrument, interest may be charged for credit extended after 30 days at a rate not more than 1 1/2% a month on the unpaid balance; or

(3) if the extension of credit to a policyholder is evidenced by a written instrument signed by the policyholder, any interest charged for such credit shall be clearly stated in the instrument and may not exceed the legal rate of interest authorized in 31-1-107.