Oregon Revised Statutes Revenue and Taxation § 317.301

(1) There shall be added to federal taxable income for Oregon tax purposes the difference between the amount allowable as a deduction under section 108 of the Internal Revenue Code   1 as applicable to the tax year of the taxpayer and the amount allowable as a deduction under section 108 of the Internal Revenue Code as amended and in effect on December 31, 2008, as applicable to the tax year of the taxpayer.

(2) There shall be added to federal taxable income for Oregon tax purposes the difference between the amount allowable as a deduction under section 168(k) of the Internal Revenue Code as applicable to the tax year of the taxpayer and the amount allowable as a deduction under section 168(k) of the Internal Revenue Code as amended and in effect on December 31, 2008, as applicable to the tax year of the taxpayer.

(3) There shall be added to federal taxable income for Oregon tax purposes the difference between the amount allowable as a deduction under section 179 of the Internal Revenue Code as applicable to the tax year of the taxpayer and the amount allowable as a deduction under section 179 of the Internal Revenue Code as amended and in effect on December 31, 2008, as applicable to the tax year of the taxpayer.

(4) Amounts added to federal taxable income for Oregon tax purposes under subsections (1) to (3) of this section may thereafter be subtracted from federal taxable income for Oregon tax purposes in the tax year for which the amounts would have been allowed as a deduction on the taxpayer's federal income tax return under the Internal Revenue Code as amended and in effect on December 31, 2008, as applicable to the tax year of the taxpayer.