Social Security benefits to be subtracted from federal taxable income. In addition to the other modifications to federal taxable income contained in this chapter, there shall be subtracted from federal taxable income the amount of any Social Security benefits, as defined in section 86 of the Internal Revenue Code (Title II Social Security or tier 1 railroad retirement benefits) included in gross income for federal income tax purposes under section 86 of the Internal Revenue Code. [1985 c.154 §2; 1997 c.839 §4]

ORS 316.054 — under Chapter 316.