Residency Migration Reference
Moving from Guam to Florida: Residency, Taxes, and What to Prove
The top income tax rate drops from 37% under the mirrored federal brackets; as low as roughly 25% of that (a 75% reduction) for up to 20 years for approved GEDA Qualifying Certificate holders in Guam to 0% in Florida. Establishing Florida residency correctly is what protects that benefit.
Residency Tests Side by Side
Guam's statutory residency test uses a 183-day threshold. Florida does not use a simple day-count threshold; it applies a facts-and-circumstances test instead.
| Factor | Guam | Florida |
|---|---|---|
| Statutory Residency Test | Guam, like the other four territories, has no day-count statutory residency overlay of its own. Bona fide residency is governed by the federal IRC section 937 three-part test: the presence test, the tax home test, and the closer connection test, all of which must be satisfied for the same tax year. DRT applies the identical federal standard used by the IRS. | None. Because Florida imposes no personal income tax, it has no statutory day-count residency test, no 'permanent place of abode plus 183 days' rule, and no state tax return that turns on residency status. Florida residency status matters legally for homestead, probate/domicile, and asset-protection law, not for an income-tax trigger. |
| Domicile Test | Closer connection functions as Guam's domicile test under Treasury Regulation 1.937-1(c): the location of a permanent home, family, personal belongings, social/political/cultural/religious affiliations, routine banking, business activity, and the jurisdiction of a driver's license and voter registration are weighed against the total of U.S. and foreign-country contacts. Publication 570's own illustrative example uses a Guam/CNMI fact pattern (a hotel employee who splits time between the two) to show how the tax home and closer connection tests interact when someone has ties to more than one territory. | Florida common law and Fla. Stat. § 222.17 define domicile as the place where a person maintains a permanent home with the present intent to remain indefinitely and to return whenever absent. There is no published multi-factor weighting test the way New York or California use; Florida courts and the probate/homestead context look at physical presence, a declaration of domicile, voter registration, driver's license, homestead filing, and where the person actually spends time, but no state revenue agency runs a residency-factor audit because there is no income tax to trigger one. |
| Day Count Threshold | 183 days | No fixed threshold |
| Any Part of a Day Rule | Any part of a day physically present in Guam counts as a full presence day, and a day spent in both Guam and the mainland U.S. counts toward Guam. The standard exceptions for qualified medical treatment, presidentially declared disasters, mandatory evacuations, and a limited 30-day travel allowance apply under the Form 8898 instructions. | Not applicable; Florida has no day-count residency test of its own. Florida day counts only matter for the OTHER state's statutory residency test when someone claims Florida domicile but keeps a home and spends significant time in a high-tax origin state. |
| Presumptions | None published | None published |
| Safe Harbors | 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 | None published |
Leaving Guam
No widely published Guam-specific bona fide residency court case surfaced in research comparable to Vento (USVI) or Karakashian (Puerto Rico). The exposure runs through the same federal IRC section 937 framework that applies across all five territories: an examiner reconstructing whether someone claiming Guam residency actually met the presence, tax home, and closer connection tests, particularly for GEDA Qualifying Certificate beneficiaries whose real business operations or family life stayed on the mainland.
Trailing Income
As with the other mirror-code territories, gains on investment property owned before becoming a bona fide Guam resident are subject to a 10-year sourcing rule under Treasury Regulation 1.937-2(f) that can keep pre-move appreciation taxable outside Guam even after relocating, unless the taxpayer makes the special holding-period allocation election in Publication 570.
Part-Year Filing
A bona fide Guam resident generally files one return, Form 1040GU, with DRT on worldwide income and has no separate federal filing obligation for that year if the Guam return is properly filed and full tax paid. Someone who is not a full-year bona fide resident but has Guam-source income files a U.S. return with the IRS and attaches Form 5074 (Allocation of Individual Income Tax to Guam or the CNMI) if adjusted gross income is $50,000 or more and Guam-source gross income is $5,000 or more, to divide the tax between the jurisdictions.
Enforcement Methods
Common Exit Mistakes
Establishing Florida Residency
| Action | Agency | Deadline |
|---|---|---|
| File a Declaration of Domicile | Clerk of the Circuit Court (county of residence) | no deadline, but do it immediately upon establishing a permanent home |
| Get a Florida driver license | Florida Department of Highway Safety and Motor Vehicles (FLHSMV) | within 30 days of establishing residency |
| Register vehicles and obtain Florida auto insurance | FLHSMV / county tax collector | within 10 days of establishing residency |
| Register to vote | Florida Division of Elections / county Supervisor of Elections | no deadline to establish residency; must register at least 29 days before voting in a given election |
| File for homestead exemption | County Property Appraiser | by March 1 of the tax year to get that year's exemption; must own and occupy as of January 1 |
Declaration of Domicile
Florida is one of the few states with a formal, purpose-built domicile filing: a sworn one-page statement under Fla. Stat. § 222.17, notarized and recorded with the Clerk of the Circuit Court in the county of residence for about a $10 recording fee. It states the person's prior domicile, Florida county, and the date Florida became home, and it is routinely cited in other states' residency audits as one data point (not dispositive on its own) supporting a genuine domicile change.
Homestead
The homestead exemption reduces assessed value by up to $50,000 (the first $25,000 applies to all taxing authorities including schools; the second $25,000, on value between $50,000 and $75,000, excludes school levies) and, more importantly for audit defense, requires proof of permanent residency as of January 1: Florida driver's license, voter registration, and vehicle registration all showing the homestead address, plus proof the applicant is not also claiming a residency-based tax benefit in another state. This filing is one of the strongest pieces of objective evidence in a domicile-change file because it is a sworn statement made to a government body with penalties for fraud, but appraisers actively cross-check it against out-of-state filings and DMV/voter records.
Voter Registration
Register through RegisterToVoteFlorida.gov, in person at a tax collector's office, or when renewing a Florida driver license; no deadline to register itself, but registration must be at least 29 days before a given election to vote in it (https://registertovoteflorida.gov/).
Vehicle Registration Deadline
10 days
New Resident Tax Traps
Because there is no state income tax, the main trap is not a Florida tax at all: it's leaving too thin a Florida evidence trail (no Declaration of Domicile, no homestead, driver's license obtained but the person still spends 200+ days a year in New York) while assuming the move is already complete. New York, California, and other origin states treat a Florida address with weak day-count and home-use evidence as a paper move, not a real one, and tax the person as a full-year resident anyway.
What Changes on Tax
Guam Top Rate
37% under the mirrored federal brackets; as low as roughly 25% of that (a 75% reduction) for up to 20 years for approved GEDA Qualifying Certificate holders
Florida Top Rate
0%
Moving from Guam to Florida drops the top marginal income tax rate from about 75% to about 0%, a reduction of roughly 75 percentage points.
Withholding Reciprocity
Guam and Florida 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
Guam and Florida both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.
Beyond Income Tax
Guam
Capital gains: Capital gains follow the same rates as the mirrored federal code; there is no separate Guam capital gains schedule. A Qualifying Certificate from the Guam Economic Development Authority (GEDA) can reduce the effective tax rate, including on qualifying business-related gains, for an approved project.
Estate or inheritance tax: Guam has no separate territorial estate or inheritance tax; federal estate tax rules apply through the mirror code framework to Guam-domiciled decedents, administered locally by DRT rather than the IRS.
Property tax: Real property tax rates run roughly 0.5% to 1% of assessed value annually, among the lowest effective property tax burdens under the U.S. flag, and Qualifying Certificate holders can receive a full real property tax exemption for up to 10 years on an approved project.
Sales tax: Guam has no general retail sales tax. Instead it imposes a 5% Business Privilege Tax (BPT, Guam's gross receipts tax) on businesses and a matching 5% use tax on imported personal goods, both of which GEDA Qualifying Certificate holders can have substantially abated.
Florida
Capital gains: Not taxed. Florida has no personal income tax, so there is no separate capital gains treatment to plan around at the state level; only federal capital gains tax applies once you are a bona fide Florida resident.
Estate or inheritance tax: None. Florida repealed its estate tax when the federal state death tax credit was phased out and has no separate inheritance tax; only the federal estate tax (currently applying above the federal exemption) can apply to a Florida domiciliary's estate.
Property tax: Average effective rate is about 0.86% statewide, but the Save Our Homes cap limits annual assessed-value growth on homesteaded property to the lesser of 3% or the CPI change (2.7% for 2026), and up to $500,000 of that accumulated benefit is portable to a new Florida homestead within two years of leaving the old one.
Sales tax: 6% state rate; counties may add a discretionary surtax of roughly 0.5% to 2%, producing a combined average of about 7% depending on county.
Who This Move Applies To
Travel Nurses
In Guam
Guam is not a major travel-nurse assignment market compared to the 50 states, but Guam Memorial Hospital and private facilities do draw contract clinical staff; the underlying federal tax-home analysis is identical to any state, requiring genuine maintenance of and return to a Guam home between assignments to sustain a Guam tax-home claim.
In Florida
Florida is the most common 'tax home' state travel nurses claim to receive tax-free stipends, but IRS and state auditors have disallowed Florida tax-home claims for nurses who kept a Florida address on paper while actually living year-round in Ohio or another assignment-state rental and never returning to Florida. To hold up, the nurse needs to actually maintain and return to the Florida home between assignments, keep paying for it continuously, and hold Florida driver's license, voter registration, and vehicle registration, not just a mailing address.
Professional Athletes
In Guam
No major U.S. professional sports franchise is based in Guam, so there is no home-team jock-tax apportionment regime specific to the territory. Visiting athletes or performers earning income from events physically held in Guam owe Guam-source tax on income attributable to that work under the mirrored federal withholding framework administered by DRT.
In Florida
Florida is home to the Miami Heat, Miami Dolphins, Tampa Bay Buccaneers, Tampa Bay Lightning, Florida Panthers, Orlando Magic, Miami Marlins, and Tampa Bay Rays. Players on these teams owe zero state tax on the roughly half of duty days spent in Florida, but every state jock tax on duty days in taxing states (California, New York, etc.) still applies in full, and because Florida has no income tax, there is no Florida credit to offset those away-state bills, unlike a player based in a state that both taxes and grants an out-of-state tax credit.
Snowbirds, Long Visitors, and RVers
In Guam
A mainland resident who buys a Guam property and spends significant time there while keeping a permanent mainland home risks failing the closer connection test even with a solid day count, unless family, banking, and business ties also shift to Guam. Publication 570's own example addresses a related pattern directly: someone with ties to both Guam and the CNMI must determine which is the actual tax home based on where their regular place of business is located, not simply where they own property.
In Florida
Florida itself places no day-count cap on how long a part-year resident can be in-state; the exposure runs the other direction; the origin state (New York, Connecticut, New Jersey) is the one counting days and evaluating whether the Florida home is a genuine primary residence or a seasonal one. A Florida-domiciled snowbird who spends more than 183 days in New York, with a permanent place of abode there, can still be taxed as a New York statutory resident despite the Florida homestead and driver's license.
Remote Workers
In Guam
Guam has no convenience-of-the-employer rule of its own, but a mainland employer's own state convenience rule can still reach a Guam-based remote worker's wages if the employer continues to treat them as mainland-sourced. Guam's IRC section 931 exclusion for bona fide residents' Guam-source income is valuable, but only applies cleanly once the employer correctly treats the work as Guam-sourced and DRT-withheld rather than leaving it entangled with a mainland payroll system.
In Florida
Florida has no convenience-of-the-employer rule and nothing to reciprocate, since it has no income tax to source wages against. The risk for a remote worker moving to Florida is entirely on the origin-state side: if the employer is based in New York and treats the employee as still NY-sourced under NY's convenience rule, the worker can owe New York tax on Florida-earned wages regardless of Florida residency.
Military
In Guam
Guam hosts significant U.S. military presence (Andersen Air Force Base and Naval Base Guam) and follows the federal Servicemembers Civil Relief Act (SCRA) and Military Spouses Residency Relief Act (MSRRA): a servicemember's home-of-record does not change solely due to Guam orders, and a civilian spouse can elect to keep the servicemember's tax residence. A servicemember who qualified as a bona fide Guam resident before deployment elsewhere does not lose that status due to absence under military orders, but being stationed on Guam under orders alone does not create bona fide residency.
In Florida
Florida follows the federal Servicemembers Civil Relief Act (SCRA) and Military Spouses Residency Relief Act (MSRRA): a servicemember's home-of-record state of legal residence does not change solely due to military orders stationing them in Florida, and a spouse can generally elect the servicemember's domicile state under MSRRA. Because Florida has no income tax, choosing Florida as home-of-record eliminates state income tax on military pay entirely, which is why Florida is a common home-of-record choice among active-duty service members.
Airline Crew
In Guam
Guam's A.B. Won Pat International Airport is a hub connection point for trans-Pacific carriers, and the federal carve-out at 49 U.S.C. section 40116, limiting taxation of air carrier employees to their state or territory of residence and, in limited cases, a jurisdiction where they earn more than half their pay, applies to Guam the same way it applies to the 50 states. Crew who are bona fide Guam residents owe Guam tax on their wages under the mirrored federal framework rather than IRS tax on Guam-source pay.
In Florida
Federal law (49 U.S.C. § 40116) restricts states from taxing air carrier employees' wages except by their state of residence and, in limited cases, the state where they earn more than 50% of their pay. Because Florida has no income tax, crew members domiciled in Florida owe no state tax on their airline wages regardless of how their duty time is split, which is why Florida (along with Texas) is a common domicile choice for pilots and flight attendants based in Miami, Fort Lauderdale, or Orlando.
Tools for This Move
Guam to Florida FAQ
Does Guam have its own separate income tax system like Puerto Rico?+
No. Guam uses a mirror code under 48 U.S.C. section 1421i, meaning it applies the U.S. Internal Revenue Code word for word with 'Guam' substituted for 'United States.' You pay the same 10% to 37% federal brackets, just to Guam's Department of Revenue and Taxation instead of the IRS, which is a fundamentally different structure from Puerto Rico's or American Samoa's independently legislated tax codes.
If I get a Florida driver's license and file a Declaration of Domicile, is my New York tax residency automatically over?+
No. New York evaluates domicile and statutory residency independently of any paperwork filed in Florida. A Declaration of Domicile and Florida license are supporting evidence, but New York's Nonresident Audit Guidelines weigh where your home, business, family, and time actually are; if you still spend more than 183 days in New York with a place there to stay, you can be taxed as a New York statutory resident regardless of your Florida filings.
If I get a GEDA Qualifying Certificate, do I automatically qualify as a Guam resident for tax purposes?+
No. A Qualifying Certificate sets up eligibility for a tax reduction, generally up to a 75% income tax reduction for up to 20 years in the standard category, but you must still independently satisfy the federal presence, tax home, and closer connection tests every year, and GEDA and DRT can review whether the underlying business and residency are genuine throughout the certificate term.
Do I have to file a Florida tax return once I move here?+
No. Florida has no personal income tax, so there is no individual return to file, part-year or otherwise. The filings that matter in Florida are the Declaration of Domicile with your county clerk, your homestead exemption application with the county property appraiser (due March 1), and DMV/voter registration, not anything with the Florida Department of Revenue.
How many days do I need to spend in Guam to be a bona fide resident?+
183 days in the tax year is the cleanest path, but there are four alternatives: 549 days across the current and two prior years with at least 60 days each year, 90 days or fewer in the U.S., $3,000 or less in U.S.-source earned income with more Guam days than U.S. days, or no significant U.S. connection at all. Meeting a presence prong alone is not enough; the tax home and closer connection tests must also be satisfied.
How can I prove I actually live in Florida if I keep an apartment back home too?+
Build a file that mirrors what an auditor from your old state will ask for: a Florida homestead exemption (which itself requires proof you don't claim residency-based tax status elsewhere), driver's license and voter registration at the Florida address, a day-count log corroborated by credit card and travel records showing more time in Florida than in the old state, and utility bills showing the Florida home is actually used, not just owned.
I split time between Guam and the CNMI. Which one is my tax home?+
Your tax home is your regular or main place of business or employment, regardless of where you also own property or spend leisure time. The IRS's own Publication 570 example addresses this exact situation: a hotel worker employed seasonally in Guam but living the rest of the year in the CNMI was found to have a Guam tax home because that's where the regular place of business was, even though the CNMI held stronger personal and social ties.
I'm a travel nurse claiming Florida as my tax home but I've barely been there this year. Is that a problem?+
Yes. Auditors have specifically disallowed Florida tax-home claims for nurses who kept a Florida address on paper while actually living full-time in an assignment-state rental and never returning. To hold up, you need to keep paying for and periodically returning to the Florida home, and hold Florida driver's license, voter registration, and vehicle registration there, not just a mailing address.
What tax return do I file if I'm a bona fide Guam resident?+
You generally file Form 1040GU with Guam's Department of Revenue and Taxation reporting your worldwide income, and you're not separately liable to file with or pay the IRS for that year as long as the Guam return is properly filed and the tax fully paid. If you're not a full-year bona fide resident but have Guam-source income, you file with the IRS and may need to attach Form 5074 to allocate tax between the jurisdictions.
How often can I go back and visit family in New York without messing up my Florida residency?+
There's no Florida-side limit; the New York side is what counts your days. If you maintain a permanent place of abode in New York (even a relative's home you can stay in) and spend more than 183 days there in a calendar year, including any part of a day, New York can tax you as a statutory resident regardless of your Florida domicile. Track every New York day, including short visits, arrival, and departure days.
Can I keep my mainland home after moving to Guam?+
You can own it, but keeping it available as a livable home for your own use works against you on the closer connection test, which compares your Guam ties to the total of your U.S. and foreign ties. Renting it out at fair market value with limited personal-use days is a safer pattern than leaving it available for regular stays.
Does filing a Declaration of Domicile in Florida count as proof I abandoned my old state?+
It's one data point, not proof by itself. Florida's Declaration of Domicile under Fla. Stat. § 222.17 is a sworn statement recorded with the county clerk and is commonly cited in residency audits as supporting evidence, but a high-tax origin state will weigh it against where you actually spend time, where your family lives, and where your business and financial life are centered before conceding the domicile change.
Considering the reverse move?
Florida to Guam
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Florida to Guam guideGuam to Florida Reading
Reviewed Against 20 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.
Start your record
Build your Guam to Florida mobility map.
Start with a free map, document your center of life, then upgrade when you need evidence, advisor collaboration, and audit-ready reporting.
Create Free Mobility Map