Personal Income Tax

ORS 316.117
Proration between Oregon income and other income for nonresidents, part-year residents and trusts


Except as provided under subsection (2) of this section, the proportion for making a proration for nonresident taxpayers of the standard deduction or itemized deductions, the personal exemption credits and any accrued federal or foreign income taxes, or for part-year resident taxpayers of the amount of the tax, between Oregon source income and income from all other sources is the federal adjusted gross income of the taxpayer from Oregon sources divided by the taxpayer’s federal adjusted gross income from all sources. If the numerator of the fraction described in this subsection is greater than the denominator, the proportion of 100 percent shall be used in the proration required by this section. As used in this subsection, “federal adjusted gross income” means the federal adjusted gross income of the taxpayer with the additions, subtractions and other modifications to federal taxable income that relate to adjusted gross income for personal income tax purposes.


For part-year resident trusts, the proration made under this section shall be made by reference to the taxable income of the fiduciary. [1969 c.493 §21; 1971 c.672 §1; 1973 c.269 §1; 1975 c.672 §5; 1977 c.872 §5; 1981 c.801 §4; 1983 c.684 §15; 1985 c.141 §5; 1987 c.293 §17; 1999 c.580 §5]

Notes of Decisions

Limiting nonresident taxpayer's deduction of Oregon source loss to same proportional share that Oregon source income bears to total taxpayer income does not violate Privileges and Immunities Clause of United States Constitution. Roelli v. Dept. of Revenue, 14 OTR 201 (1997)

Chapter 316

Notes of Decisions

Unless the divorce decree specifically designates that payments are for child support, payments will be treated as alimony. Henderson v. Dept. of Rev., 5 OTR 153 (1972)

The goal of this chapter is to incorporate all of the provisions of the federal Internal Revenue Code; taxable income should be adjusted whenever the result of the adjustment is to give effect to the policies or principles of the federal Internal Revenue Code, even though no express authority for the adjustment is present in the statutes. Christian v. Dept. of Rev., 269 Or 469, 526 P2d 538 (1974); Smith v. Dept. of Rev., 270 Or 456, 528 P2d 73 (1974)

By its enactment of this chapter, the legislature intended to adopt §172 of the federal Internal Revenue Code allowing for the carryback and carryforward of net operating losses. Christian v. Dept. of Rev., 269 Or 469, 526 P2d 538 (1974)

Where plaintiff failed to appeal timely as required by this section, appeal rights were not preserved so that cause could be considered on merits. Dela Rosa v. Dept. of Rev., 11 OTR 201 (1989), aff'd 313 Or 284, 832 P2d 1228 (1992)

Where taxpayers paid foreign income taxes on foreign income and claimed foreign taxes paid as federal tax credit and as state business expense deduction, taxpayers who claim federal foreign tax credit are entitled only to foreign tax deduction provided in ORS 316.690. Whipple v. Dept. of Rev., 309 Or 422, 788 P2d 994 (1990)

For purposes of claim preclusion, all issues regarding taxpayer's income tax liability for tax year constitute same claim. U.S. Bancorp v. Dept. of Revenue, 15 OTR 13 (1999)

Atty. Gen. Opinions

Political contributions as credit against Oregon tax return, (1974) Vol 37, p 159

Law Review Citations

57 OLR 309 (1978); 16 WLR 373 (1979)


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Jun. 26, 2021