Rule 42.9.301 - PASS-THROUGH ENTITY INFORMATION RETURNS FOR PARTNERSHIPS(1) Every partnership that has Montana source income must file a Form PR-1, Montana Partnership Information and Composite Tax Return, on or before the 15th day of the third month following the close of its annual accounting period.(2) A six-month extension of time to file a partnership return is automatically allowed if any tax, penalties, and interest due are paid on or before the date the return is filed.(3) A partnership required to file a Montana partnership information return is subject to a late-filing penalty if: (a) the Montana partnership information return is not filed by the due date (including extensions); (b) a copy of the partnership's federal partnership return is not filed with the Montana partnership information return; or (c) a return is filed that does not include all of the following information: (i) name, address, and social security or federal identification number of each partner;(ii) the partnership's Montana source income;(iii) each partner's distributive share of Montana source income, gain, loss, deduction, or credit or items of income, gain, loss, deduction, or credit; and(iv) each partner's distributive share of income, gain, loss, deduction, or credit, or item of income, gain, loss, deduction, or credit from all sources.NEW, 2002 MAR p. 3708, Eff. 12/27/02; AMD, 2010 MAR p. 174, Eff. 1/15/10; AMD, 2017 MAR p. 2094, Eff. 11/10/2017AUTH: 15-1-201, 15-30-2620, 15-31-501, MCA; IMP: 15-30-2602, 15-30-2603, 15-30-3302, 15-30-3311, 15-31-101, 15-31-111, MCA