Mont. Code Ann. § 33-2-321

33-2-321 . Stamping fee and clearinghouse processing fee. (1) The commissioner may collect a stamping fee not to exceed 1% of the premium payable for surplus lines insurance transacted in this state. The commissioner shall establish the stamping fee by rule commensurate with the expenses of regulating surplus lines. The stamping fee must be placed in a state special revenue account to the credit of the commissioner's office and used for the expenses of the commissioner's office in regulating surplus lines insurance.

(2) If the commissioner has entered an agreement with a clearinghouse as authorized pursuant to 33-2-323 to process multistate risks and allocate and distribute taxes and fees collected, the clearinghouse may collect a processing fee from the surplus lines insurance producer or the insured that independently procured insurance. The processing fee may be a flat fee per submission, a percentage of the premium payable for surplus lines insurance, or a combination of a flat fee and a percentage of premium payable. When a percentage of premium payable is used in calculating the processing fee, the charge may not exceed 1% of the premium payable for surplus lines insurance. The commissioner shall establish the processing fee by rule to be commensurate with the clearinghouse's charges to process multistate risks and allocate and distribute taxes and fees collected to the participating states.

(3) If applicable, the surplus lines insurance producer shall collect the stamping fee and clearinghouse processing fee from the insured in addition to the premium payable for the insurance contract and any taxes and fees.