Any taxpayer having income from business activity which is taxable both within and without this state, other than activity as a financial institution or public utility or the rendering of purely personal services by an individual, shall allocate and apportion the net income of the taxpayer as provided in ORS § 314.605 to 314.675. Taxpayers engaged in activities as a financial institution or public utility shall report their income as provided in ORS § 314.280 and 314.675. [1965 c.152 § 3; 2001 c.793 § 6; 2001 c.933 § 5; 2009 c.403 § 6]