Tiegs v. State, Dep't of Revenue
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The Supreme Court reversed the order of the district court in this tax appeal, holding that the district court erred by concluding that Mont. Code Ann. 15-30-2119, the NOL statute, operates as a dollar-for-dollar offset provision that indirectly taxes out-of-state income.
At issue was the decision of the Department of Revenue to deny nonresident taxpayers Franklin and Janet Tiegs a carryover net operating loss (NOL) deduction on their 2014 and 2015 Montana income tax returns. The Montana Tax Appeal Board upheld the Department's decision, but the district court reversed, concluding that Mont. Code Ann. 15-30-2119 was unconstitutional because it authorized taxation of non-Montana income. The Supreme Court reversed, holding that the district court (1) erred by holding that the general use of out-of-state income within the Montana income tax framework violated Mont. Code Ann. 15-30-2102 and federal constitutional principles; and (2) erred by concluding that section 15-30-2119 constitutes impermissible taxation of income outside of Montana's jurisdictional reach.
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