15-31-305. Apportionment of business income. All business income shall be apportioned to this state by multiplying the income by a fraction, the numerator of which is the property factor plus the payroll factor plus the sales factor and the denominator of which is 3.

     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(9).