Mont. Code Ann. § 15-68-811 — Tax As Debt

15-68-811 . Tax as debt. (1) The tax imposed by this chapter and related interest and penalties become a personal debt of the person required to file a return from the time that the liability arises, regardless of when the time for payment of the liability occurs.
(2) (a) This section applies to those corporate officers, directors, or shareholders required by the department to personally guarantee the payment of the taxes for their corporations.
(b) The officer or employee of a corporation whose duty it is to collect, truthfully account for, and pay to the state the amounts imposed by this chapter and who fails to pay the tax is liable to the state for the amounts imposed by this chapter and the penalty and interest due on the amounts.