Residency Migration Reference
Moving from Arizona to American Samoa: Residency, Taxes, and What to Prove
Arizona's 2.5% top income tax rate becomes Secondary sources cite individual rates ranging from roughly 4% to 15%; the American Samoa Government Tax Office administers the schedule directly and does not publish an English-language bracket table online, so a filer should confirm the current-year schedule directly with the Tax Office in American Samoa. This move trades a lighter tax environment for a heavier one, so timing income around the transition year matters.
Residency Tests Side by Side
Arizona uses a 274-day statutory residency threshold, while American Samoa uses 183 days. Track both thresholds separately during a transition year rather than assuming they line up.
| Factor | Arizona | American Samoa |
|---|---|---|
| Statutory Residency 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. | American Samoa uses the same federal IRC section 937 bona fide residency test that applies to all five territories: the presence test, the tax home test, and the closer connection test, all of which must be met for the same tax year. This federal test determines whether someone's American Samoa-source income is exempt from U.S. tax; American Samoa's own independent tax code separately determines what is owed to the territory itself. |
| Domicile Test | Arizona applies the common-law domicile test described in ADOR Individual Income Tax Procedure ITP 92-1: physical presence in a place combined with intent to make it your permanent home. Domicile, once established, is presumed to continue until affirmatively changed, and the burden of proving a change falls on the person claiming it. | Closer connection functions as the domicile test, weighing permanent home, family, personal belongings, social/cultural/religious affiliations (which in American Samoa often includes matai title and extended-family/aiga ties), banking, business activity, and the jurisdiction of a driver's license and voter registration, against the total of U.S. and foreign-country contacts under Treasury Regulation 1.937-1(c). |
| Day Count Threshold | 274 days | 183 days |
| Any Part of a Day Rule | 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. | Any part of a day physically present in American Samoa counts as a full presence day, and a day spent in both American Samoa and the mainland U.S. counts toward American Samoa. Publication 570 includes an American Samoa-specific example involving a fishing-vessel worker: days spent on a vessel predominantly used in local and international waters do not count as a tax home outside the territory, a rule of particular relevance to American Samoa's tuna-fleet economy. |
| Presumptions | ARS §43-104's nine-month (roughly 274-day) presumption of residency, rebuttable by evidence the time in Arizona was temporary or transitory. | None published |
| Safe Harbors | None published | 183-day presence test; 549-day / 3-year test; 90-day U.S. cap; Low U.S.-earned-income test; No significant U.S. connection |
Leaving Arizona
Arizona residency audits are meaningfully less common and less aggressive than California's or New York's. Practitioners report ADOR generally follows up on federal audit adjustments and filed part-year returns rather than proactively hunting departing high-net-worth residents. The people who draw the most scrutiny are snowbirds who spend more time in Arizona than the nine-month presumption allows while still filing as nonresidents, and part-year filers who keep an Arizona home, driver's license, or voter registration active.
Trailing Income
Arizona-source income, such as income from Arizona real property or an Arizona-based business, continues to be taxed to nonresidents after departure via Form 140NR. Deferred compensation and retirement plan distributions generally follow the federal 4 U.S.C. §114 rule reserving taxation to the state of residence at the time of receipt for qualifying periodic retirement payments.
Part-Year Filing
Form 140PY, Arizona Part-Year Resident Personal Income Tax Return, used to report income earned while an Arizona resident plus any Arizona-source income earned before arriving or after leaving.
Enforcement Methods
Common Exit Mistakes
Establishing American Samoa Residency
| Action | Agency | Deadline |
|---|---|---|
| Register with the American Samoa Tax Office and obtain filing instructions | American Samoa Government Tax Office | before the applicable filing season begins (recent filing seasons have opened in late January) |
| Obtain a REAL ID-compliant driver's license or ID, or carry a U.S. passport | American Samoa Government | required for domestic air travel identification purposes as of May 7, 2025; territory-wide REAL ID adoption was reported at only about 16% as of the announcement |
| Register to vote in territorial elections | American Samoa Election Office | confirm current registration windows with the Election Office |
| Understand land-access limits before assuming any purchase of a primary residence | American Samoa Land Commission / Governor's Office (for any alienation of communal land) | N/A, non-natives generally cannot acquire communal land outright and must lease instead |
Declaration of Domicile
American Samoa has no sworn declaration-of-domicile filing. Bona fide residency for U.S. federal tax purposes is established through the standard section 937 factual record (presence, tax home, closer connection), while American Samoa's own tax obligations are separately determined by A.S.C.A. section 11.0403 and administered directly by the ASG Tax Office.
Homestead
American Samoa has no homestead exemption program in the mainland or Puerto Rico sense, because the underlying land-tenure system is fundamentally different: over 90% of land is communally owned by extended families (aiga) under matai leadership and cannot be individually alienated to non-Samoans without Land Commission recommendation and Governor approval, or 30 years of adverse possession. Most non-native residents establish a home through a lease rather than a fee-simple purchase, which changes what 'proof of residence' evidence looks like compared to any other U.S. jurisdiction in this guide.
Voter Registration
Register through the American Samoa Election Office (https://www.aselectionoffice.gov). Because people born in American Samoa are U.S. nationals rather than U.S. citizens (unless a parent was a U.S. citizen or they separately naturalize), American Samoa residents, whether U.S. national or citizen, do not vote in U.S. presidential elections and American Samoa's Congressional delegate is non-voting; local territorial elections are separately administered.
Vehicle Registration Deadline
null days
New Resident Tax Traps
The most distinctive trap is assuming American Samoa functions like Guam or the USVI's mirror-code systems; it does not; A.S.C.A. section 11.0403 modeling on the Internal Revenue Code does not mean identical rates or identical rules, and U.S. Government employee wages earned in American Samoa remain taxable on the U.S. return regardless of bona fide residency status, unlike ordinary private-sector American Samoa-source wages.
What Changes on Tax
Arizona Top Rate
2.5%
American Samoa Top Rate
Secondary sources cite individual rates ranging from roughly 4% to 15%; the American Samoa Government Tax Office administers the schedule directly and does not publish an English-language bracket table online, so a filer should confirm the current-year schedule directly with the Tax Office
Moving from Arizona to American Samoa raises the top marginal income tax rate from about 2.5% to about 15%, an increase of roughly 12.5 percentage points.
Withholding Reciprocity
Arizona and American Samoa do not have a wage-withholding reciprocity agreement with each other, so this move follows ordinary source-state and resident-state filing rules rather than a reciprocity exception.
Community Property Transition
Arizona is a community property state and American Samoa uses common law marital property rules. Property already characterized as community property generally keeps that character after the move, subject to the destination state's quasi-community-property treatment, while future acquisitions follow American Samoa's common law rules.
Beyond Income Tax
Arizona
Capital gains: Taxed as ordinary income at the flat 2.5% rate, but Arizona allows a 25% subtraction on qualifying net long-term capital gains (ARS §43-1022), which brings the effective rate on those gains down to about 1.875%. As of January 1, 2026 the subtraction applies to all qualifying long-term gains, not just assets acquired after 2011. Short-term gains get no subtraction and are taxed at the full 2.5%.
Estate or inheritance tax: None. Arizona has no estate tax and no inheritance tax.
Property tax: Effective rate is among the lowest in the country, roughly 0.45% to 0.56% depending on county, with Maricopa County near the higher end. Arizona offers a Senior Property Valuation Protection option that freezes the assessed value for qualifying low-income seniors 65 and older, rather than a general homestead portability system.
Sales tax: 5.6% state transaction privilege tax base rate, with combined state-and-local rates commonly running 8% to 9% in metro Phoenix and up to about 11.2% in some jurisdictions.
American Samoa
Capital gains: American Samoa taxes capital gains under its own code, modeled on but not identical to the federal framework; no separate 0%-style preferential regime comparable to Puerto Rico's Act 60 has surfaced in research, and bona fide residents should confirm current treatment directly with the ASG Tax Office.
Estate or inheritance tax: No separate American Samoa territorial estate or inheritance tax was identified in research; because most land is communally held rather than individually owned and cannot pass through ordinary inheritance to non-Samoans, estate planning in American Samoa is governed as much by customary land law (matai/family succession) as by tax law.
Property tax: Effective property tax rates are described by secondary sources as very low, well under 1% of property value annually, but the more important fact for most people is that over 90% of American Samoa's land is communal land held by extended families under the matai (chief) system and generally cannot be purchased outright by non-natives, so 'property tax' is a minor issue for most newcomers compared to the land-access question itself.
Sales tax: American Samoa has no general state-level sales tax comparable to a mainland state; secondary sources describe local excise-style and business taxes rather than a broad retail sales tax, and current details should be confirmed with the ASG Tax Office.
Who This Move Applies To
Travel Nurses
In Arizona
Arizona's Phoenix and Tucson hospital systems make it one of the largest travel nurse markets in the country. A nurse who is actually Arizona-domiciled and takes Arizona contracts is simply an Arizona resident under ordinary rules. A nurse who claims Arizona as a tax home while working travel assignments elsewhere needs a genuine, regularly used Arizona residence with duplicated living expenses, or the stipend portion of their pay risks being reclassified as taxable wages if audited.
In American Samoa
American Samoa has essentially no travel-nurse assignment market comparable to the 50 states or even Guam; the territory's single hospital system (LBJ Tropical Medical Center) is not a typical travel-nursing agency placement, so this persona is largely not applicable here. The underlying federal tax-home principles would apply identically if it ever were.
Professional Athletes
In Arizona
Arizona is home to the Cardinals, Suns, Diamondbacks, and the Coyotes' successor tenant at Mullett Arena, and MLB's Cactus League spring training in March adds a significant block of extra duty days for every visiting team's roster. Arizona applies standard duty-day allocation to nonresident athlete income, but because the flat rate is only 2.5%, Arizona produces one of the lowest jock-tax burdens of any state that taxes athlete income at all.
In American Samoa
No major U.S. professional sports franchise is based in American Samoa, and there is no jock-tax apportionment regime. American Samoa is, however, well known as an outsized per-capita source of NFL and college football talent; players who grew up there and later earn NFL income are taxed on that income under the ordinary duty-day rules of whatever states and teams they play for, not under any American Samoa-specific regime.
Snowbirds, Long Visitors, and RVers
In Arizona
This is Arizona's signature scenario: the state's own nine-month (roughly 274-day) presumption explicitly allows spending a large chunk of the year in Arizona without automatically becoming a resident. Large numbers of California and Midwest retirees winter in the Phoenix and Tucson areas from October through April while keeping their prior-state domicile, but they need to track their total Arizona days against the 274-day threshold and remember their origin state runs its own, separate presumption pointing the other direction.
In American Samoa
Long-term visitors face the same closer-connection analysis as anywhere else, complicated by the land-tenure system: without the ability to buy communal land outright, a snowbird-style arrangement in American Samoa typically means a long-term lease rather than home ownership, which changes the kind of documentary evidence (lease agreements, utility bills in the resident's name) that would need to substitute for a deed or homestead filing in a residency dispute.
Remote Workers
In Arizona
Arizona has no convenience-of-employer rule. A nonresident who performs all their work physically outside Arizona for an Arizona-based employer is not Arizona-taxed on those wages. Arizona also has a narrow reciprocal withholding exemption (Form WEC) with California, Indiana, Oregon, and Virginia: residents of those four states working in Arizona can request their Arizona employer withhold no Arizona tax, though the arrangement runs one direction and doesn't create general two-way income tax reciprocity.
In American Samoa
American Samoa has no convenience-of-the-employer rule, and because it runs a separate tax code rather than a mirror code, a mainland employer's payroll system is even less likely to be set up to handle American Samoa withholding correctly than for Guam or the USVI. A remote worker relocating to American Samoa should expect to actively manage employer withholding and filing status rather than assume standard mainland payroll processes will translate correctly.
Military
In Arizona
Arizona follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. Nonresident military stationed in Arizona under orders don't become Arizona residents from the posting alone, and their military pay isn't Arizona-taxed if domiciled elsewhere. Arizona also fully exempts military retirement pay for its own domiciled veterans.
In American Samoa
American Samoa follows the federal Servicemembers Civil Relief Act (SCRA) and Military Spouses Residency Relief Act (MSRRA), and Publication 570 specifically addresses active-duty members whose state of legal residence is American Samoa: their military pay is American Samoa-source income and follows the U.S. Government employee wage rules described above regardless of duty station, meaning it is taxable on the U.S. return even though they are American Samoa residents.
Airline Crew
In Arizona
American Airlines operates a major hub and crew base at Phoenix Sky Harbor (PHX). Federal law (49 U.S.C. §40116) limits taxation of air carrier employees to their state of residence and any state where they earn more than 50% of pay, which matters directly for Arizona-based crew flying national routes.
In American Samoa
Pago Pago International Airport has limited scheduled service compared to Guam or the mainland, and American Samoa is not a significant airline crew base; the federal carve-out at 49 U.S.C. section 40116 for air carrier employees would apply the same way it does elsewhere if it became relevant, but this is a marginal persona for American Samoa specifically.
Tools for This Move
Arizona to American Samoa 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.
Is American Samoa's tax system the same as Guam's or the US Virgin Islands'?+
No. Guam, the USVI, and the CNMI use a 'mirror code' that applies the U.S. Internal Revenue Code word for word with the territory's name substituted in. American Samoa has its own separate and independent tax system: A.S.C.A. section 11.0403 incorporates much of the Internal Revenue Code by reference, so the law is modeled on federal law, but rates and specific rules are set independently by the American Samoa Government, not automatically updated when Congress changes the federal code.
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.
Can I buy a house in American Samoa the way I would in any other U.S. territory?+
Generally, no. Over 90% of American Samoa's land is communally owned by extended families under the matai (chief) system, and non-natives cannot acquire that land outright; transferring communal land to individual ownership requires Land Commission recommendation and Governor approval, or 30 years of adverse possession. Most non-native residents live under a long-term lease rather than owning a home, which changes what proof-of-residence documentation looks like compared to anywhere else in this guide.
Do I have to pay Arizona tax on my California retirement income if I move to Arizona?+
Yes, once you're an Arizona resident, your 401(k), IRA, and pension distributions are taxed at Arizona's flat 2.5% rate regardless of where the money was earned or which state's employer originally sponsored the plan. Only Social Security and Arizona-recognized military retirement are exempt.
Do I pay U.S. federal income tax on income I earn in American Samoa?+
If you're a bona fide American Samoa resident under the federal presence, tax home, and closer connection tests, your American Samoa-source income is generally exempt from U.S. federal tax. You do need to report worldwide income on your American Samoa return, and if you have non-American Samoa-source income above the filing threshold, you'll still need to file a U.S. return excluding the American Samoa income using Form 4563.
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.
I work for the U.S. Government in American Samoa. Is my pay exempt like other residents' income?+
No, and this is a common and costly misunderstanding. Publication 570 specifically requires that wages and cost-of-living allowances paid by the U.S. Government for services performed in American Samoa be included in gross income on both your U.S. and American Samoa income tax returns, regardless of whether you are a bona fide American Samoa resident. A foreign tax credit is available for the American Samoa tax paid on the same income to avoid double taxation, but the U.S. filing obligation itself does not go away.
Does Arizona tax Social Security?+
No. Arizona fully exempts Social Security benefits from state income tax, regardless of your total income level.
What if I'm not a U.S. citizen born in American Samoa? Can I still vote?+
People born in American Samoa are U.S. nationals, not automatically U.S. citizens, unless a parent was a U.S. citizen or they separately naturalize. This status allows a U.S. passport and mainland residency rights, but American Samoa residents, whether national or citizen, do not vote in U.S. presidential elections, and the territory's Congressional delegate is non-voting. Local territorial elections are separately administered by the American Samoa Election Office.
Does Arizona have a capital gains tax?+
Arizona taxes capital gains as ordinary income at the flat 2.5% rate, but allows a 25% subtraction on qualifying long-term gains, which brings the effective rate on those gains down to roughly 1.875%. Short-term gains get no subtraction.
How many days do I need to be in American Samoa to count as a bona fide resident?+
183 days in the tax year is the cleanest path under the federal presence test, but there are four alternatives, including 549 days across the current and two prior years with at least 60 days each year. Meeting a presence prong alone is not enough; you also need to pass the tax home test and the closer connection test, which for American Samoa often weighs matai title, extended-family (aiga) ties, and lease-based home arrangements rather than conventional homeownership.
Considering the reverse move?
American Samoa to Arizona
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the American Samoa to Arizona guideAlso Consider, Leaving Arizona
Arizona to American Samoa Reading
Reviewed Against 17 Primary Sources
ResidencyIQ organizes public residency research into a reviewable reference. It does not provide legal or tax advice. Consult a qualified professional before making a residency decision.
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