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Arizona 183-Day Rule Checker
Arizona runs a statutory day-count test at 274 days. Enter your days or build date ranges below for a verdict cited to Arizona's actual rule.
Arizona's actual test
Arizona Revised Statutes §43-104 defines a resident as anyone domiciled in Arizona, or anyone who is in Arizona for other than a temporary or transitory purpose. The statute also sets a presumption: an individual who spends in aggregate more than nine months (roughly 274 days) of the tax year in Arizona is presumed a resident, rebuttable with evidence the presence was temporary or transitory.
Any part of a day
ADOR guidance under ITP 92-1 counts any day with any physical presence in Arizona toward the aggregate nine-month presumption count, similar in concept to California's approach, though in practice Arizona applies it with less aggressive enforcement than California.
Presumptions
ARS §43-104's nine-month (roughly 274-day) presumption of residency, rebuttable by evidence the time in Arizona was temporary or transitory.
Methodology and sources
The threshold, presumption, and rule text shown here come directly from Arizona's researched dossier, reviewed against 10 primary sources including Arizona Department of Revenue. This is general information, not tax or legal advice.
183-Day Rule Checker
Check your day count against Arizona's actual rule.
Clear
274 days below the 274-day threshold
Days counted
0
0 days is comfortably under the 274-day statutory threshold. The day-count test alone would not make you a statutory resident here at this pace, though domicile and other facts-and-circumstances tests can still apply independently.
Arizona's actual test
Arizona Revised Statutes §43-104 defines a resident as anyone domiciled in Arizona, or anyone who is in Arizona for other than a temporary or transitory purpose. The statute also sets a presumption: an individual who spends in aggregate more than nine months (roughly 274 days) of the tax year in Arizona is presumed a resident, rebuttable with evidence the presence was temporary or transitory.
Any part of a day
ADOR guidance under ITP 92-1 counts any day with any physical presence in Arizona toward the aggregate nine-month presumption count, similar in concept to California's approach, though in practice Arizona applies it with less aggressive enforcement than California.
Presumptions
ARS §43-104's nine-month (roughly 274-day) presumption of residency, rebuttable by evidence the time in Arizona was temporary or transitory.
General information based on published dossier research, not tax or legal advice. Consult a qualified advisor before relying on a day count for a filing position.
Arizona Day-Count FAQ
Does Arizona use the 183-day rule?+
Not exactly. Arizona's statutory presumption under ARS §43-104 kicks in after more than nine months, roughly 274 days, of aggregate presence in a tax year, not 183 days. Spending fewer than 274 days doesn't automatically make you a nonresident either; Arizona still looks at your domicile and intent.
How many months can I spend in Arizona as a snowbird before I owe Arizona income tax?+
Arizona's own presumption threshold is more than nine months (about 274 days) in the state during the tax year. Under that, you're not automatically presumed an Arizona resident, but your home state's own rules, for example California's nine-month presumption running the other direction, may still treat you as a resident there regardless of your Arizona day count.
What's Arizona's income tax rate?+
A flat 2.5% on all taxable income, with no brackets. It's one of the lowest state income tax rates in the country among states that tax income at all.
Can I keep my Arizona winter home and still avoid Arizona residency?+
Generally yes, as long as your total aggregate days in Arizona stay under the roughly 274-day (nine-month) presumption threshold and your domicile, meaning your intent and center of life, remains clearly in your other state. Keeping the home alone doesn't trigger residency; exceeding the day threshold or shifting your actual center of life does.
Does Arizona have a declaration of domicile like Florida?+
No. Arizona has no formal declaration-of-domicile filing. Domicile is established and proven through conduct: your driver's license, voter registration, home purchase or lease, and bank accounts.
Is Arizona aggressive about residency audits like California?+
No. Practitioners consistently describe Arizona as far less aggressive than California or New York. ADOR audits tend to follow federal adjustments or filed part-year returns rather than proactively pursuing departing high-net-worth residents, though snowbirds who clearly exceed the nine-month presumption while filing as nonresidents remain a real risk.
Read the full Arizona residency guide
Day count is one part of the picture. The full guide covers domicile, exit audit risk, the establishment checklist, tax profile, and special situations for Arizona.
Open the Arizona residency guideCheck another jurisdiction
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