Oregon Tax Residency (200-day rule)

Key parameters
Threshold	200 days
Period / Window	Tax year (1 Jan – 31 Dec)
Counting	Any part of a day
Alternative	Domicile
Additional requirements	Permanent place of abode

This applies to anyone with a year-round home available to them in Oregon, whichever state they treat as their own. You are an Oregon resident if either of these applies:

• Domicile — Oregon is your permanent home, the place you intend to return to whenever you are away. That fails only where three things line up: no permanent place of abode kept in Oregon, one maintained elsewhere, and no more than 30 days spent in the state.
• Abode plus days — you are domiciled elsewhere but maintain a permanent place of abode in Oregon and spend more than 200 days of the tax year in the state.

The second route also has an escape most states do not offer. Even above 200 days you are not a resident if you can prove you were in Oregon only for a temporary or transitory purpose — passing through, taking a short rest or vacation, or completing a particular transaction needing only a brief stay.

What counts as a permanent place of abode is broad. It means a fixed place held long enough to create a well-settled physical connection with the locality, and any property suitable for year-round living can qualify even where you use it only at weekends or on vacation.

• A weekend-only house still counts as an abode. Property suitable for year-round living qualifies even where you use it just on vacations or at weekends.
• 200 days is not the end of the analysis. Proving the stay was temporary or transitory defeats residency even where both limbs are otherwise met, which no 183-day state allows.
• The bar is higher than in most states. More than 200 days gives roughly two and a half more weeks than a 183-day threshold before the question arises.
• The burden sits with you above the line. It is for you to prove the temporary or transitory purpose, not for the state to disprove it.
• Leaving while domiciled has its own number. A domiciliary who keeps no Oregon abode, maintains one elsewhere and spends no more than 30 days in the state is outside residency for the year, with the 200-day figure playing no part in it.

A resident is taxed on income from all sources while a nonresident pays only on Oregon-source income, so an error usually surfaces as out-of-state earnings never reported while another state taxed the same income. The Department charges interest from the original due date and adds penalties for filing late and for underpaying, with higher exposure where an understatement is treated as deliberate. Professional tax advice is strongly recommended in situations like this.

A second home used most of the year

You are domiciled in Washington, own a house in Bend suitable for year-round living, and spend about 230 days a year there. Both limbs are met and the stay is plainly not transitory, so you are an Oregon resident.

A long stay that stays under the line

You keep a coastal property in Oregon and spend roughly 180 days in the state. The abode limb holds but the count falls short of 200, so the rule does not attach for that year.

Above the line but plainly temporary

You spend 210 days in Oregon completing a single construction contract with a fixed end date, living in temporary quarters and returning home after. The purpose was transitory, which can defeat residency despite the count.

• Oregon Revised Statutes — Section 316.027, resident defined
• Oregon Administrative Rules — 150-316-0025, definition of resident