Mont. Code Ann. § 15-31-504 — Estimated Tax On Failure To File

15-31-504 . Estimated tax on failure to file. (1) If any taxpayer fails to make return as herein required, the department of revenue is authorized to make an estimate of the taxes due from such taxpayer from any information in its possession.
(2) For the purpose of ascertaining the correctness of any return or for the purpose of making an estimate of net income of any corporations where information has been obtained, the department shall also have power to examine or to cause to have examined by any agent or representative designated by it for that purpose any books, papers, records, or memoranda bearing upon the matters required to be included in the return and may require the attendance of any officer or employee of the corporation rendering such return or the attendance of any other person having knowledge in the premises and may take testimony and require proof material for its information.