Residency Migration Reference
Moving from Guam to Ohio: 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 2.75% (state, tax year 2026); municipal income taxes up to roughly 3% stack on top in most cities in Ohio. Establishing Ohio residency correctly is what protects that benefit.
Residency Tests Side by Side
Guam's statutory residency test uses a 183-day threshold. Ohio does not use a simple day-count threshold; it applies a facts-and-circumstances test instead.
| Factor | Guam | Ohio |
|---|---|---|
| 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. | Ohio does not use a simple day-count statutory residency test. Instead, Ohio Revised Code 5747.24 and Ohio Administrative Code 5703-7-16 create a 'bright-line' irrebuttable presumption system built around contact periods. An individual is irrebuttably presumed to be a full-year nonresident if, for the entire year, they have fewer than 213 contact periods with Ohio, maintain at least one abode outside Ohio, do not hold an Ohio driver's license, do not receive the Ohio homestead exemption, are not eligible for Ohio resident tuition rates at a state university, and timely file Form IT NRS (formerly IT DA), the Ohio Nonresident Statement, by October 15 of the following year. Fail any of those conditions and Ohio falls back to a traditional facts-and-circumstances domicile test. |
| 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. | Under the version of Ohio Administrative Code 5703-7-16 in effect since June 2026, the tax commissioner is barred from considering a long list of factors when weighing domicile, including where a taxpayer banks, shops, holds insurance, uses professional services, or where family members and dependents live (with a narrow schooling exception). Factors the commissioner may still weigh include the taxpayer's number of Ohio contact periods, voter registration location, prior years' tax positions, and any past failure to meet Ohio residency requirements. This is a deliberately narrower factor list than most states use, reflecting Ohio's legislative push to make the bright-line contact-period test the primary tool rather than an open-ended facts-and-circumstances inquiry. |
| 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. | Ohio measures 'contact periods,' not simple days. A contact period is created when a person whose abode is outside Ohio is away from that abode overnight and spends at least part of two consecutive days in Ohio. Two contact periods can occur within the same short trip if it spans multiple overnight stays. Because the unit is a pair of consecutive days rather than a single day, Ohio's mechanics differ meaningfully from a state like New York where any part of one calendar day counts. |
| Presumptions | None published | 213 contact periods is the bright-line threshold: fewer than 213 contact periods, combined with the other four bright-line conditions and a timely IT NRS filing, produces an irrebuttable presumption of Ohio nonresidency. HBK CPA and other practitioner guidance note that failing the bright-line test does not automatically make someone an Ohio resident; it simply forces the older facts-and-circumstances domicile analysis. |
| 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 | IT NRS irrebuttable nonresident presumption |
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 Ohio Residency
| Action | Agency | Deadline |
|---|---|---|
| Transfer out-of-state driver license to an Ohio license | Ohio BMV | within 30 days of establishing residency |
| Register any vehicle kept in Ohio | Ohio BMV | within 30 days |
| Register to vote | Ohio Secretary of State | at least 30 days before the election |
Declaration of Domicile
Ohio has no formal declaration-of-domicile filing comparable to Florida's county recording. The closest formal filing runs the other direction: Form IT NRS is how someone claims to no longer be an Ohio domiciliary. Establishing Ohio domicile is purely conduct-based: home purchase or lease, BMV registration, voter registration, and the pattern of actual contact periods in the state.
Homestead
Ohio's homestead exemption is limited to homeowners 65 or older, permanently and totally disabled Ohioans, and some surviving spouses or disabled veterans, and for most applicants is capped by household income (roughly $41,000 for tax year 2026). It reduces the home's taxable value by about $26,200 of market value. Because eligibility requires the home be the applicant's principal place of residence, claiming it is meaningful domicile evidence, and the county auditor's homestead rolls are one of the standard cross-checks against a nonresident tax claim.
Voter Registration
Register online, by mail, or in person at least 30 days before an election through the Ohio Secretary of State's online system. https://olvr.ohiosos.gov/
Vehicle Registration Deadline
30 days
New Resident Tax Traps
A new Ohio resident is taxed by the state on worldwide income from the date Ohio residency begins, reported on the full-year or part-year Form IT 1040. The bigger trap for people moving from a no-income-tax or low-tax state is underestimating the added municipal income tax layer: depending on which city or village they settle in, an additional 1.5% to 3% local tax applies on top of the state rate, and that municipal tax is a completely separate filing and payment system from the state return in most cities.
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
Ohio Top Rate
2.75% (state, tax year 2026); municipal income taxes up to roughly 3% stack on top in most cities
Moving from Guam to Ohio drops the top marginal income tax rate from about 75% to about 3%, a reduction of roughly 72 percentage points.
Withholding Reciprocity
Guam and Ohio 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 Ohio 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.
Ohio
Capital gains: Ohio has no separate capital gains rate. Gains are included in federal adjusted gross income, which flows to the Ohio return and is taxed at the same rate as other income.
Estate or inheritance tax: None. Ohio repealed its estate tax for deaths occurring on or after January 1, 2013, and has no inheritance tax. Only the federal estate tax, with its far higher exemption, can apply to an Ohio decedent's estate.
Property tax: Average effective property tax rate runs roughly 1.4%, among the higher rates in the Midwest, and varies significantly by county and school district. The homestead exemption reduces taxable value for qualifying senior and disabled homeowners but is not a general portability benefit like Florida's.
Sales tax: State rate is 5.75%; combined with average local county and transit rates, the statewide average is about 7.2%, though rates vary by county since Ohio permits local sales tax add-ons.
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 Ohio
Ohio has no separate statutory carve-out for travel nurses; a nurse on assignment is measured under the same contact-period and bright-line rules as anyone else. The recurring problem practitioners flag nationally, and one that shows up in Ohio specifically, is a nurse who claims a Florida or Texas tax home on paper but actually lives in an Ohio rental apartment for most of the year and rarely if ever visits the claimed home state; that pattern has drawn audits that disallow the out-of-state tax home entirely, which exposes the tax-free travel stipends to tax and typically requires filing an Ohio resident return plus nonresident returns in every other state worked.
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 Ohio
Ohio cities apply municipal jock taxes to visiting professional athletes, but the method changed after the Ohio Supreme Court's 2015 Hillenmeyer decision. Cleveland had taxed visiting players using a games-played method, which the court struck down as a due process violation; municipalities must now use a duty-days method that allocates income based on the ratio of days worked in the city (games, practices, mandatory team activities) to total duty days for the season. This affects visiting teams playing the Browns, Bengals, Guardians, Reds, Cavaliers, and Blue Jackets, and it also applies to those home franchises' own players when Ohio is their tax home.
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 Ohio
The Ohio-specific snowbird scenario is a retiree or seasonal resident who keeps an Ohio home while wintering in Florida or another warm-weather state. If that person keeps their contact periods under 213 for the full year, maintains a genuine abode outside Ohio, gives up the Ohio driver's license, does not claim the Ohio homestead exemption, and files Form IT NRS by October 15, they qualify for the irrebuttable nonresident presumption regardless of how nice the Ohio house is. Miss any one of those five conditions and the state falls back to the narrower facts-and-circumstances domicile factors under the 2026 version of OAC 5703-7-16.
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 Ohio
Ohio has no state-level convenience-of-the-employer rule. The practical issue for remote workers is municipal: under the 20-day occasional entrant rule, an employer withholds to the employee's principal place of work until the employee exceeds 20 days working in a different Ohio municipality, at which point withholding must shift to that city. Ohio law also recognizes a 'qualifying remote work location,' which can be an employee's home, for sourcing municipal tax when the employee works primarily from home rather than a traditional office.
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 Ohio
Ohio follows the federal Servicemembers Civil Relief Act: a servicemember whose home of record is Ohio remains an Ohio domiciliary and taxpayer regardless of where military orders station them, and a nonresident servicemember stationed in Ohio on orders is not taxed by Ohio on military pay solely because of the duty station. Since the 2023 tax year, the Military Spouses Residency Relief Act as amended lets a military spouse elect to use the servicemember's state of legal residence for state tax purposes, giving military couples more flexibility than a strict duty-station rule would allow.
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 Ohio
Federal law (49 U.S.C. §40116) limits any state to taxing an air carrier employee's compensation only in the employee's state of residence and any state where more than 50% of pay is earned. This protects flight crew based out of Ohio hubs such as Cincinnati/Northern Kentucky (CVG) or Columbus who are domiciled in another state from having their full income pulled into Ohio taxation solely because Ohio is their duty station.
Tools for This Move
Guam to Ohio 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.
What is a 'contact period' in Ohio, and how is it different from just counting days?+
A contact period is created when someone whose home is outside Ohio stays away from that home overnight and is present in Ohio for any part of two consecutive days. It is a pair-of-days concept, not a single-day count like some states use. Ohio's bright-line test asks whether you had fewer than 213 contact periods for the full year, not whether you were physically present for fewer than some number of individual days, so a careful count has to track overnight stays, not just visits.
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.
I keep a house in Ohio and a house in Florida and go back and forth. How does Ohio decide if I'm still a resident?+
If you want the strongest protection, Ohio's bright-line test gives you an irrebuttable presumption of nonresidency, but only if you meet all five conditions for the full year: fewer than 213 contact periods, an abode outside Ohio, no Ohio driver's license, no Ohio homestead exemption, no Ohio resident tuition eligibility, and a timely Form IT NRS filed by October 15. Meet all five and Ohio cannot argue domicile facts against you. Miss even one, such as still holding an Ohio license, and the state falls back to weighing domicile factors like contact periods and voter registration.
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.
What is Form IT NRS and when is it due?+
Form IT NRS, the Ohio Nonresident Statement (formerly called IT DA), is the affidavit a taxpayer files to claim the irrebuttable presumption of full-year Ohio nonresidency. It must be filed by October 15 of the year following the tax year at issue. Filing it doesn't by itself make you a nonresident; you still have to independently meet the other four bright-line conditions, but missing the deadline forfeits the safe harbor even if everything else checks out.
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.
Does keeping the Ohio homestead exemption hurt my nonresident claim?+
Yes, directly. Claiming the Ohio homestead exemption on a property is one of the five conditions that, if triggered, defeats the bright-line irrebuttable nonresident presumption outright, regardless of your contact period count. County auditors administer the homestead rolls separately from the Department of Taxation, but the two records are cross-checked, so a homestead claim on a house you're calling a vacation home is one of the more obvious contradictions an auditor looks for.
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.
If I move out of Ohio, do I still owe Ohio tax on income from my old job or business?+
Ohio doesn't have a broad convenience-of-the-employer rule at the state level, so simply teleworking for an Ohio employer after you move doesn't automatically create Ohio tax exposure the way it can in New York. But Ohio-source income, business income sourced to Ohio activity, and compensation for work actually performed in Ohio before your move remain taxable under normal sourcing rules, and you'll need Ohio Schedule IT NRC with your part-year Form IT 1040 to allocate what's actually Ohio income.
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.
I heard Ohio cities also have their own income tax. Does moving out of the state fix that too?+
Not automatically. Ohio's state bright-line and domicile rules are separate from municipal income tax, which is administered by the city or by an agency like RITA or CCA. If you keep working in an Ohio city more than 20 days a year after you move, that city's occasional entrant rule can still pull your wages for those days into its withholding and filing requirements, independent of whether you've established state-level nonresidency.
Considering the reverse move?
Ohio to Guam
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Ohio to Guam guideGuam to Ohio Reading
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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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