15-31-301. Corporations subject to allocation and apportionment. (1) Any corporation having income from business activity which is taxable both within and without this state shall allocate and apportion its net income as provided in this part.
(2) A corporation engaged in a unitary business within and without Montana must apportion its apportionable income as provided for under 15-31-305. A business is unitary when the operation of the business within the state is dependent upon or contributory to the operation of the business outside the state or if the units of the business within and without the state are closely allied and not capable of separate maintenance as independent businesses.
(3) A corporation not engaged in a unitary business must allocate its apportionable income by means of separate accounting methods, provided its books and records are so kept that the income and expenses attributable to business operations within the state can be properly segregated from total income and expense. If the corporation's books and records do not permit such proper segregation, its apportionable income must be apportioned according to the provisions of 15-31-305.
History: En. Sec. 3, Ch. 166, L. 1933; re-en. Sec. 2297.1, R.C.M. 1935; amd. Sec. 1, Ch. 219, L. 1957; amd. Sec. 1, Ch. 143, L. 1969; amd. Sec. 55, Ch. 516, L. 1973; amd. Sec. 2, Ch. 5, L. 1974; R.C.M. 1947, 84-1503(1); amd. Sec. 3, Ch. 268, L. 2017.
Structure Montana Code Annotated
Chapter 31. Corporate Income Tax or Alternative Corporate Income Tax
Part 3. Allocation and Apportionment of Income
15-31-301. Corporations subject to allocation and apportionment
15-31-303. When taxable in another state
15-31-304. Allocation of nonapportionable income
15-31-305. Apportionment of apportionable income
15-31-306. Definition of property factor
15-31-307. Values used for property factor
15-31-308. Definition of payroll factor
15-31-309. Payroll factor for compensation in this state
15-31-310. Definition of receipts factor
15-31-311. Receipts factor for receipts in this state
15-31-312. Apportionment formula -- unitary business provisions
15-31-314. through 15-31-320 reserved
15-31-322. Water's-edge election -- inclusion of tax havens
15-31-323. Apportionment factors -- inclusion of tax havens
15-31-324. Water's-edge election period -- consent -- change of election
15-31-325. Treatment of dividends
15-31-326. Domestic disclosure spreadsheet -- inclusion of tax havens