10-43-22.1. Tax limited to income from business within state--Formula for net income apportionment.
Financial institutions engaged in business within and without the state shall be taxed only on such business as is properly apportioned to this state. All net income shall be apportioned to this state by multiplying the net income by a fraction, the numerator of which is the property factor, plus the payroll factor plus the receipts factor, the denominator of which is three.
Source: SL 1935, ch 205, §15-a; SDC 1939, §57.2707; SDCL, §10-43-22; SL 1977, ch 96, §5.