Oregon Tax Residence: the rule, how days are counted, examples

Summary

Oregon treats you as a resident for income tax if your permanent home is somewhere else but you keep a permanent place of abode in Oregon and spend more than 200 days of the tax year in the state. Both parts are needed. Any part of a day in Oregon counts as a whole day. A resident pays Oregon tax on income from everywhere, not only on Oregon income. The Oregon Department of Revenue decides, and you can escape the rule only by proving that you are in Oregon for a temporary purpose.

Limit: 200 days. Day 201 is the first day over the limit
Period: The tax year, for most people 1 January to 31 December
A day counts when: You are in Oregon for any part of the calendar day
Second condition: You keep a permanent place of abode in Oregon
Law: Oregon Revised Statutes, ORS 316.027(1)(a)(B) and (2)
Run by: Oregon Department of Revenue

Who it applies to

People whose permanent home is in Washington, California or Idaho and who keep a flat or house in Oregon for work.
Owners of a second home in Oregon that can be lived in all year, who spend long seasons there.
People sent to an Oregon office with no end date, who rent a place near work while the family stays in another state.
Retired people who divide the year between Oregon and a state with no income tax.

The rule

Oregon has two ways to be a resident. The first is domicile, which means the one place that is your true, fixed, permanent home. The second is the rule on this page, written in ORS 316.027(1)(a)(B): a person who is not domiciled in Oregon is still a resident if the person maintains a permanent place of abode in Oregon and spends in the aggregate more than 200 days of the taxable year in the state. 'In the aggregate' means all the days are added together. They do not need to be in a row.

ORS 316.027(2) says how to count: a fraction of a calendar day counts as a whole day. An arrival at 11 pm and a departure at 6 am the next morning are two Oregon days.

The second condition is the home. Oregon Administrative Rule 150-316-0025 describes a permanent place of abode as a dwelling you keep on a lasting basis, owned or rented, long enough to create a settled connection with the place. A home owned or leased by your spouse generally counts. A camp or cottage that is fit only for holidays and used only for holidays does not count. A dwelling without normal cooking and bathing facilities generally does not count. A second home with full facilities that you could live in all year may count, even if you use it mostly at weekends.

The statute has one way out: the rule does not apply if you prove that you are in Oregon only for a temporary or transitory purpose. The administrative rule explains that a work posting for a fixed, limited time, after which you go back to your permanent home, is temporary, even when you rent housing and pass 200 days. A posting with no end date is not temporary. The Department looks at all the facts of your case.

Oregon also has a sister rule for people whose permanent home is Oregon, tracked in Countr as Oregon Tax — 30 Days or Fewer.

Why it exists

Oregon has no sales tax and depends strongly on its income tax. The state wants people who really live in Oregon for most of the year to pay tax like other residents, even when they say that their legal home is in another state. Domicile depends on intention, which is hard to check. A day count together with a home in the state is something the Department of Revenue can check with records.

Counting the days

You count the calendar days of the tax year on which you were physically in Oregon for any length of time. The count starts again at zero each tax year.

Take the tax year. For most people this is 1 January to 31 December.
Mark every calendar day on which you were in Oregon, even for one hour. Arrival days and departure days both count.
Add all marked days together, across every trip in the year.
Compare with 200. At 200 days or fewer this rule does not apply. At 201 days or more the day condition is met.
Check the second condition: did you keep a permanent place of abode in Oregon? Without one, the day count alone does not make you a resident under this rule.
Keep proof of where you were: tickets, fuel and card receipts, work records. The Department may ask for it.

How Countr counts it. Countr counts every calendar day on which your phone records you in Oregon, from 1 January to 31 December, and compares the total with 200. Any part of a day counts as a full day, as the statute says. Countr starts to warn you 14 days before the limit. Two things are simpler than the law. First, Countr cannot know whether you keep a permanent place of abode in Oregon. That part is for you to judge, so add this tracker only if you keep such a home. Second, Countr cannot tell a day when you only passed through from a day when you stayed, so it counts both. This means the warning can come early, never late.

Track Oregon Tax Residence on your phone.

Countr finds your past trips in your photos and keeps counting from there.

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Examples

A commuter with a Portland flat

Dana's permanent home is in Vancouver, Washington, where her family lives. Her employer moved her to the Portland office with no end date, and she rents a small flat in Portland for work nights. In 2026 she is in Oregon on 5 days of each week for 48 weeks, which is 240 days. She keeps a permanent place of abode in Oregon and has more than 200 days, and her posting is not temporary. Oregon treats her as a resident for 2026 and taxes all her income, with a credit possible for tax paid elsewhere.

A long summer on the coast

Luis and Ana are domiciled in Idaho and own a house in Lincoln City that can be used all year. In 2026 they stay there from 1 May to 30 September, which is 153 days, and they come for 5 more weekends, 10 days. Their total is 163 days. They keep a permanent place of abode in Oregon, but they do not pass 200 days, so this rule does not make them residents.

Day 200 and day 201

Ken is domiciled in Nevada and keeps a flat in Bend. He arrives on 1 January 2026 and leaves on 19 July 2026. That is exactly 200 days, which is not more than 200. In November he flies in for one afternoon meeting and flies out the same evening. That part of a day is day 201, and the day condition is now met for the whole year.

Exceptions

The rule does not apply if you prove that you are in Oregon only for a temporary or transitory purpose, for example a work posting with a fixed end date after which you return home.
A person who is a 'qualified individual' under section 911(d)(1) of the Internal Revenue Code, which is the federal rule for Americans who live and work abroad, is not an Oregon resident for that year.
The spouse of such a person is also not a resident if the spouse's main home for the year is outside Oregon.
A member of the Armed Forces on active service whose residence in the military payroll records is another state is not an Oregon resident.
A holiday camp or cottage that is fit only for holidays and used only for holidays is not a permanent place of abode, so days spent there do not bring you under this rule.
An investment or rental property that you and your close family never use as a dwelling is generally not a permanent place of abode.

Common misconceptions

“Oregon uses the 183-day rule like most states.”: Oregon's number is 200, not 183. You must spend more than 200 days in the state, and you must also keep a permanent place of abode there.
“If I stay under 200 days, Oregon cannot tax me as a resident.”: The 200-day rule is only for people whose permanent home is in another state. If Oregon is your domicile, you are a resident with far fewer days, unless you meet the three conditions of the 30-day rule.
“More than 200 days in Oregon always makes me a resident.”: The day count is one of two conditions. Without a permanent place of abode in Oregon, or with proof that your stay is temporary, the rule does not apply. Oregon can still tax the income you earn in Oregon as a nonresident.
“Only nights count.”: The statute counts a fraction of a calendar day as a whole day. A day trip to Oregon with no night there is one day.

Questions and answers

Does the day I arrive in Oregon count?

Yes. ORS 316.027(2) says a fraction of a calendar day counts as a whole day. Both the day you arrive and the day you leave are Oregon days.

What happens if I spend 201 days in Oregon?

If you also keep a permanent place of abode in Oregon and cannot prove a temporary purpose, you are a resident for that tax year. Oregon then taxes your income from all sources, and you file the resident return, Form OR-40.

Does a holiday cabin in Oregon count as a permanent place of abode?

It depends on the building and the use. Under the administrative rule, a camp or cottage that is fit only for holidays and used only for holidays does not count. A second home with full facilities that you could live in all year may count.

Do I need to be in Oregon 200 days in a row?

No. The law adds together all Oregon days in the tax year. Ten short trips count the same as one long stay.

Can I be a resident of Oregon and of another state in the same year?

Yes. Each state uses its own test. You can be domiciled in one state and be a resident of Oregon under the 200-day rule. States normally give a credit for tax paid to another state on the same income, but the details differ.

Does the count carry over to the next year?

No. The test looks at one tax year at a time. On the first day of the new tax year the count starts again from zero.

Sources

Other rules for United States

Arizona Tax Residence 273 days in each calendar year
California Tax — Visitors 181 days in each calendar year
California Tax Residence 273 days in each calendar year
Connecticut Tax — 30 Days or Fewer 30 days in each calendar year
Connecticut Tax Residence 183 days in each calendar year
Delaware Tax Residence 183 days in each calendar year
Hawaii Tax Residence 200 days in each calendar year
Idaho Tax Residence 270 days in each calendar year

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This page explains the rule and how the days are counted. It is not legal or tax advice. The authority decides each case on its own facts.