2015 ORS § 314.620¹
When taxpayer is considered taxable in another state

For purposes of allocation and apportionment of income under ORS 314.280 (Allocation of income of financial institution or public utility from business within and without state) and 314.605 (Short title) to 314.675 (Apportionment of net loss), a taxpayer is taxable in another state if:

(1) In that state the taxpayer is subject to a net income tax, a franchise tax measured by net income, a franchise tax for the privilege of doing business, or a corporate stock tax; or

(2) That state has jurisdiction to subject the taxpayer to a net income tax regardless of whether, in fact, the state does or does not. [1965 c.152 §4]