Mont. Code Ann. § 15-68-106 — Separate Statement Of Tax -- No Advertising To Absorb Or Refund Tax -- Rules

15-68-106 . Separate statement of tax -- no advertising to absorb or refund tax -- rules. (1) If a person collects a tax in excess of the tax imposed by 15-68-102 , both the tax and the excess tax must be remitted to the department.
(2) Except as provided in subsection (4), the sales tax must be stated separately for all sales, except for sales from coin-operated or currency-operated machines.
(3) A person may not advertise, hold out, or state to the public or to any customer that the tax imposed by this chapter will be absorbed or refunded.
(4) The department may adopt rules permitting sellers the option of stating sales tax based upon a percentage of taxable sales.