What counts as a day in Oregon for the 200-day rule?

Any fraction of a calendar day spent in Oregon is counted as a whole day. Days do not need to be consecutive, and you do not need to sleep at your Oregon place of abode for the day to count.

Do you need a home in Oregon to be a statutory resident?

Yes. The 200-day test requires both a permanent place of abode maintained in Oregon and more than 200 days in the state during the tax year. Days alone, without a place of abode, do not trigger this test, though separate domicile rules can still make you a resident.

Oregon's 200-Day Statutory Residency Rule

Q: How many days can you spend in Oregon without becoming a statutory resident?

Up to 200 days in the tax year. Spending more than 200 days in Oregon while maintaining a place of abode there makes you a resident, even if you are domiciled elsewhere, unless you can prove your presence was only temporary or transitory. Exactly 200 days keeps you under the day test.

A place of abode in Oregon plus more than 200 days in the state during the tax year makes you a resident, even if you live elsewhere, unless the stay is only temporary. Here is exactly how the count works.

Last verified: July 2026

In short: Oregon treats you as a resident if you both maintain a permanent place of abode in Oregon and spend more than 200 days in the state during the tax year. This applies even if your permanent home is in another state or country, unless you can prove your presence was only temporary or transitory. Note the line is 200 days, not 183, and any fraction of a day in Oregon counts as a full day.

Threshold: More than 200 days
Also required: Permanent place of abode
Counting window: Tax year (calendar year)
A day counts if: Any fraction of a day in Oregon
Applies even if: Domiciled elsewhere
Legal basis: Or. Rev. Stat. §316.027

The rule

Oregon has two separate ways to be a resident: by domicile (Oregon is your true, permanent home) or by the 200-day statutory test. The 200-day rule catches people domiciled elsewhere, and it has two conditions that must both be met:

A permanent place of abode. You maintain a dwelling suitable for living in Oregon during the tax year. It does not have to be owned, and you do not have to live in it full time.
More than 200 days. You spend, in the aggregate, more than 200 days in Oregon during the tax year. Exactly 200 days keeps you under the day test.

Meet both and you are treated as an Oregon resident, taxed on your worldwide income, even if you are domiciled in another state or country. The one escape hatch is proof that your stay in Oregon was only for a temporary or transitory purpose, which is a facts-and-circumstances question that falls on you to establish.

How to count it

Confirm you maintained a permanent place of abode in Oregon during the tax year.
Count every day on which you were present in Oregon for any part of the day.
Add the days across the whole tax year. Days do not need to be consecutive.
If the total is more than 200 and the place-of-abode condition is met, you are an Oregon resident for that year, unless you can prove the stay was temporary or transitory.

Example. You are domiciled in Nevada but keep an apartment in Portland all year. Across the year you are physically in Oregon on 210 days, many of them just for part of the day.

Because any fraction of a day counts, all 210 days count. With a place of abode plus more than 200 days, you are an Oregon resident, taxed on your full income, unless you can show your time in Oregon served only a temporary or transitory purpose.

Beyond the day count

The 200-day test is only one route. Oregon can also tax you as a resident by domicile, which turns on where your true home and the center of your financial, social, and family life sit, rather than on a day count. The "temporary or transitory purpose" exception can rebut the 200-day test, but the burden is on you, and passing through, a brief visit, or a short assignment is treated differently from an ongoing presence. Because a fraction of a calendar day counts as a whole day, arrival and departure days both count in full.

Official source: Or. Rev. Stat. §316.027, explained on the Oregon Department of Revenue "What form do I use?" page, which states you are considered an Oregon resident if you maintain an Oregon residence and spend more than 200 days in the state during the tax year.

AtlasDays tracks Oregon's 200-day rule automatically

Log your trips once. AtlasDays counts your days in Oregon for each tax year, privately on your iPhone, and warns you before you cross the 200-day line.

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FAQ

How many days can you spend in Oregon without becoming a statutory resident?

Up to 200 days in the tax year. At more than 200 days, combined with a place of abode maintained in Oregon, you are treated as a resident, unless you can prove your presence was only temporary or transitory.

What counts as a day in Oregon?

Any fraction of a calendar day spent in Oregon is counted as a whole day, so both arrival and departure days count in full.

Do you need a home in Oregon to be caught by the rule?

For the 200-day test, yes. Without a place of abode there is no statutory residence on days alone, though separate domicile rules can still make you a resident.