Residency Migration Reference
Moving from South Carolina to American Samoa: Residency, Taxes, and What to Prove
South Carolina's 6% 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
South Carolina does not use a simple day-count threshold; it applies a facts-and-circumstances test instead. American Samoa's statutory residency test uses a 183-day threshold.
| Factor | South Carolina | American Samoa |
|---|---|---|
| Statutory Residency Test | South Carolina has no day-count statutory residency test. The Department of Revenue's own guidance states plainly: 'Unlike some states that tax a person as a resident who lives in the state for a specific period of time, such as 183 days, South Carolina does not have a minimum time that must be spent in the state to be presumed a South Carolina resident for individual income tax purposes.' Residency turns entirely on domicile. | 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 | S.C. Code § 12-6-30(2) defines a resident individual as 'an individual domiciled in this State.' Domicile itself is undefined in the tax code and comes from case law: South Carolina courts (Phillips v. South Carolina Tax Commission, 195 S.C. 472, 12 S.E.2d 13 (1940); Gasque v. Gasque, 246 S.C. 423, 143 S.E.2d 811 (1965); Ravenel v. Dekle, 265 S.C. 364, 218 S.E.2d 521 (1974)) define domicile as the place a person has a true, fixed, and permanent home and principal establishment, to which they intend to return whenever absent. Intent is the most important element, evaluated against conduct: the Department's published Domicile Guide (June 2021) lists non-exhaustive factors grouped as property (deeds, real property, motor vehicles, the 4% assessment ratio), employment and financial (where wages are earned, where taxes are paid, bank account and bill addresses), licenses and registrations (voter registration, driver's license, vehicle registration, professional licenses), family (where spouse and dependents live), and affiliations (civic ties, place of worship, professional service providers). No single factor is dispositive. | 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 | No fixed threshold | 183 days |
| Any Part of a Day Rule | Not applicable; South Carolina has no statutory day-count test. A nonresident who works in South Carolina or spends winter months there does not automatically become a South Carolina resident, and conversely a domiciled South Carolina resident who is physically absent for months or years remains a resident if they intend to return. | 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 | Military servicemembers who entered service while domiciled in South Carolina are presumed to remain South Carolina residents for tax purposes unless they affirmatively establish legal residence elsewhere and abandon South Carolina domicile (S.C. Regulation 117-640.2). No general civilian day-count presumption exists. | 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 South Carolina
South Carolina Administrative Law Court decisions (F. Abbott Brown v. Charleston County Assessor, 03-ALC-17-0515 (2004); D. Bradlee Hodson v. Charleston County Assessor, 01-ALJ-17-0286 (2001); Floyd v. South Carolina Department of Revenue, 15-ALJ-17-0458-CC (2016), aff'd per curiam 2019 WL 141503 (S.C. Ct. App. 2019)) show the Department and county assessors testing domicile changes primarily through the 4% legal-residence property tax assessment ratio and DOR residency determinations, weighing driver's license, voter registration, vehicle registration, and filed tax returns against actual conduct and stated intent. In each cited case the taxpayer prevailed despite missing one or more of the standard documents, because the courts held that documents are evidence of intent, not a checklist requirement.
Trailing Income
Because South Carolina taxes residents on all personal service income regardless of source but does not tax nonresidents' worldwide business income, the trailing exposure after leaving is narrower than in states with full worldwide-income taxation: a departed resident still owes South Carolina tax on South Carolina-source personal service income and the apportioned South Carolina share of business income, but not on wages earned entirely outside the state after a genuine domicile change.
Part-Year Filing
A part-year resident (S.C. Code § 12-6-30(3): 'an individual who is a resident individual for only a portion of the tax year') files Form SC1040 and generally has the option to file as a full-year resident claiming credit for taxes paid to other states (Form SC1040TC), or to file SC1040 with Schedule NR reporting only income earned while a South Carolina resident plus any South Carolina-source income earned as a nonresident, prorating deductions.
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
South Carolina Top Rate
6%
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 South Carolina to American Samoa raises the top marginal income tax rate from about 6% to about 15%, an increase of roughly 9 percentage points.
Withholding Reciprocity
South Carolina 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
South Carolina and American Samoa both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.
Beyond Income Tax
South Carolina
Capital gains: Taxed as South Carolina income; a 44% deduction is generally available against net long-term capital gains for state purposes, which is the state's primary capital-gains relief mechanism rather than a separate lower rate.
Estate or inheritance tax: None. South Carolina has no estate tax and no inheritance tax.
Property tax: South Carolina's owner-occupied primary residence qualifies for the 4% legal-residence assessment ratio under S.C. Code § 12-43-220(c) instead of the standard 6% ratio, a major property tax reduction tied directly to domicile; a separate Homestead Exemption for owners 65+, totally and permanently disabled, or legally blind exempts the first $50,000 of fair market value from tax entirely, but only after residing in South Carolina as a permanent home for a full prior calendar year.
Sales tax: 6% state rate, with local option taxes pushing the average combined state-and-local rate to about 7.49%.
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 South Carolina
South Carolina's large hospital systems (MUSC in Charleston, Prisma Health, McLeod) make it a significant travel-nurse assignment market. Because South Carolina has no day-count residency trigger, a nurse working consecutive South Carolina contracts is not automatically pulled into residency the way they would be in a 183-day state; the exposure runs through South Carolina's domicile test instead, meaning a nurse who buys a home, registers to vote, or otherwise shows intent to make South Carolina permanent can become domiciled regardless of the nominal 'tax home' claimed elsewhere.
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 South Carolina
Charleston and Greenville host minor-league and college sports rather than a major-league franchise, so South Carolina's jock-tax exposure is almost entirely on the visiting-player side: nonresident athletes on teams playing in South Carolina owe apportioned South Carolina tax on the personal-service income allocated to South Carolina duty days, following the state's general rule taxing nonresidents on South Carolina-source personal service income.
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 South Carolina
Because South Carolina runs no day-count test, a snowbird can spend an extended winter in South Carolina without becoming a resident, as long as they do not develop the intent to make South Carolina their permanent home; the Department's own guidance states a nonresident spending winter months in South Carolina does not automatically become a South Carolina resident. The risk flips for someone who buys a South Carolina home, joins clubs, opens local bank accounts, and gradually shifts their center of life there, as in Brown, where the taxpayer was found domiciled in South Carolina despite lacking a South Carolina driver's license or vehicle registration that year.
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 South Carolina
South Carolina has no convenience-of-the-employer rule. A remote worker physically performing work from South Carolina owes South Carolina tax on that personal service income (since South Carolina taxes residents' personal service income regardless of source and nonresidents' South Carolina-source personal service income), and the credit for taxes paid to other states (Code § 12-6-3400) is the mechanism for avoiding double taxation if the employer's home state also asserts a claim.
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 South Carolina
South Carolina follows the federal Servicemembers Civil Relief Act, the Military Spouses Residency Relief Act, and the Veterans Benefits and Transition Act: a servicemember does not lose or acquire South Carolina domicile solely by being present or absent under military orders, and a spouse may elect to use the servicemember's state of residence for tax purposes regardless of when the marriage occurred. Under S.C. Regulation 117-640.2, a servicemember who entered service while domiciled in South Carolina is presumed to remain a South Carolina resident for tax purposes unless they affirmatively establish a new domicile and abandon South Carolina, even if the new state (like Texas or Florida) has no income tax.
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 South Carolina
Charlotte Douglas (just across the North Carolina line) and smaller in-state airports mean some airline crew live in South Carolina while based elsewhere. Federal law (49 U.S.C. § 40116) limits state taxation of air carrier employees to their state of residence and, narrowly, a state where more than 50% of pay is earned; crew domiciled in South Carolina are taxed on personal service income under the state's standard resident rules.
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
South Carolina to American Samoa FAQ
Does South Carolina have a 183-day rule like New York or California?+
No. The South Carolina Department of Revenue states directly that, unlike states with a day-count presumption such as 183 days, South Carolina has no minimum time that must be spent in the state to be presumed a resident. Residency depends entirely on domicile: where your true, fixed, permanent home is and where you intend to return when away.
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.
I bought a house in South Carolina but haven't gotten a South Carolina driver's license or registered to vote yet. Am I still a resident?+
Possibly yes. In F. Abbott Brown v. Charleston County Assessor, the taxpayer was found domiciled in South Carolina for a full year despite having none of those three documents, because the court found his conduct, joining a local club, banking locally, moving into the home with intent to stay, demonstrated domicile regardless of the missing paperwork. The Department's own guidance says intent and conduct control, not any single document.
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.
What's the difference between South Carolina's homestead exemption and the 4% assessment ratio?+
They're two different benefits. The 4% legal-residence assessment ratio applies to any owner-occupant whose South Carolina home is their domicile, cutting the property tax assessment ratio from 6% to 4%, and is available immediately. The Homestead Exemption is narrower: it exempts the first $50,000 of fair market value entirely, but only for owners who are 65 or older, totally and permanently disabled, or legally blind, and only after a full prior calendar year of South Carolina residency.
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.
I moved to Wyoming for a few years and never got a Wyoming driver's license. Did I stay a South Carolina resident?+
Not necessarily. In Floyd v. South Carolina Department of Revenue, a taxpayer who moved to Wyoming without ever obtaining a Wyoming license or registering to vote there was still found to have abandoned South Carolina domicile, because the court credited her testimony that she genuinely intended to build a life in Wyoming. Missing documents hurt your case but are not automatically fatal if your actual conduct and credible intent point elsewhere.
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 Social Security get taxed once I retire in South Carolina?+
No. South Carolina fully exempts Social Security benefits, and on top of that offers a $10,000 per-person retirement income deduction at age 65 and older ($3,000 under 65) that applies to pensions, 401(k)s, and IRA distributions.
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.
How does South Carolina tax my income if I still work remotely for my old employer after moving here?+
South Carolina taxes residents on all personal service income (wages and self-employment earnings from labor) regardless of where it's earned, so your remote wages are taxable in South Carolina once you're domiciled here. If your former state also claims a right to tax the same income, South Carolina's credit for taxes paid to another state (Code § 12-6-3400) prevents double taxation.
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 South Carolina
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 South Carolina guideState Guides
Full jurisdiction references
Also Consider, Leaving South Carolina
South Carolina to American Samoa Reading
Reviewed Against 15 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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