Residency Migration Reference
Moving from West Virginia to Illinois: Residency, Taxes, and What to Prove
The top income tax rate drops from 5.12% (2026, top bracket) in West Virginia to 4.95% (flat) in Illinois. Establishing Illinois residency correctly is what protects that benefit.
Residency Tests Side by Side
West Virginia's statutory residency test uses a 183-day threshold. Illinois does not use a simple day-count threshold; it applies a facts-and-circumstances test instead.
| Factor | West Virginia | Illinois |
|---|---|---|
| Statutory Residency Test | W. Va. Code §11-21-7 defines a resident individual two ways: (1) an individual domiciled in West Virginia, unless that person maintains no permanent place of abode in the state, does maintain a permanent place of abode elsewhere, and spends 30 days or less in West Virginia during the tax year, or (2) an individual not domiciled in West Virginia who nonetheless maintains a permanent place of abode in the state and spends more than 183 days of the taxable year in West Virginia. The second prong makes someone a statutory resident regardless of domicile; the exception in the first prong is a genuine safe harbor for domiciliaries who functionally live elsewhere. | Illinois has no statutory residency test of the New York or Minnesota type: no bright-line day count and no permanent place of abode prong. 35 ILCS 5/1501(a)(20)(A) defines a resident as an individual '(i) who is in this State for other than a temporary or transitory purpose during the taxable year; or (ii) who is domiciled in this State but is absent from the State for a temporary or transitory purpose during the taxable year.' Those are the only two routes to Illinois residency for an individual. Cain v. Hamer, 2012 IL App (1st) 112833, shows how far that departure from a day count runs: snowbird retirees who spent 1,666 days in Illinois against 1,700 in Florida across 1996 through 2004, an average well above 183 Illinois days a year, were held not to be Illinois residents. Day counts matter in Illinois as evidence of purpose and as inputs to the administrative presumptions, not as a threshold that decides residency by itself. |
| Domicile Test | West Virginia's statute and regulation (110 CSR 21-7) do not publish a long weighted factor list the way New York does; domicile is treated under the traditional common-law standard of the place a person regards as their permanent home and intends to return to, evaluated on the facts. The clearest statutory tool West Virginia gives taxpayers is the 30-day/no-abode carve-out described above, which functions as an objective override to a subjective domicile claim. | Illinois follows the traditional common-law domicile standard under 86 Ill. Adm. Code 100.3020: domicile is the place a person intends as their true, fixed, permanent home, and to which they intend to return whenever absent. A person can have only one domicile at a time, and it continues until a new one is established through both physical presence in the new location and demonstrated intent to abandon Illinois as the permanent home. The Department of Revenue looks at where a person votes, holds a driver's license and registers vehicles, banks, keeps professional relationships (doctor, lawyer, accountant), works, houses family, and belongs to clubs or religious institutions; no single factor controls. |
| Day Count Threshold | 183 days | No fixed threshold |
| Any Part of a Day Rule | West Virginia's statute does not define whether a partial day counts toward either the 183-day statutory residency threshold or the 30-day domiciliary safe harbor. Absent published guidance to the contrary, practitioners generally treat any day with in-state presence as counting toward both thresholds. | Not applicable in the statutory sense, because Illinois has no day-count threshold for an individual to cross. There is no any-part-of-a-day rule to apply. Days still get counted in Illinois practice, both because 86 Ill. Adm. Code 100.3020(f) presumes residency above nine months in the aggregate and presumes continued residency where an individual is present in Illinois more days than in any other state, and because the Department of Revenue's audit division reconstructs presence from credit card, toll, and travel records to test whether time in Illinois was temporary or transitory. |
| Presumptions | None published beyond the statutory tests themselves. | 86 Ill. Adm. Code 100.3020(f) supplies four rebuttable presumptions in place of a statutory day test. An individual who spends in the aggregate more than nine months of any taxable year in Illinois is presumed to be a resident. An individual absent from Illinois for one year or more is presumed to be a nonresident. An individual receiving a homestead exemption on Illinois property under 35 ILCS 200/15-175 is presumed to be an Illinois resident. And an Illinois resident in one year is presumed to be a resident the following year 'if he or she is present in Illinois more days than he or she is present in any other state.' The presumptions 'are not conclusive and may be overcome by clear and convincing evidence to the contrary,' with the rule listing acceptable rebuttal evidence including location of spouse and dependents, voter and vehicle registration, driver's license, filing a resident return elsewhere, home ownership or rental agreements, the permanent or temporary nature of work assignments, location of professional licenses, location of medical providers, accountants and attorneys, club memberships and participation, and telephone or other utility usage over a duration of time. |
| Safe Harbors | 30-day domiciliary carve-out | None published |
Leaving West Virginia
West Virginia is not commonly named among the aggressive exit-audit states, and no widely reported landmark residency case defines its enforcement posture. The clearest risk area is a domiciliary who tries to rely on the 30-day carve-out while still keeping a usable West Virginia abode; because the safe harbor requires no permanent place of abode in the state at all, keeping a house available, not just visited rarely, can defeat the exception even if the 30-day count is satisfied.
Trailing Income
West Virginia has no published convenience-of-the-employer rule. West Virginia-source income, including wages for work actually performed in the state, business income sourced to West Virginia activity, and gains from West Virginia property, remains taxable to a nonresident after departure under the standard sourcing rules on Schedule A.
Part-Year Filing
Form IT-140, the West Virginia Personal Income Tax Return, is used by full-year residents, part-year residents, and nonresidents alike; part-year residents and nonresidents complete Schedule A to allocate and apportion income between West Virginia and other sources for the period of nonresidency.
Enforcement Methods
Common Exit Mistakes
Establishing Illinois Residency
| Action | Agency | Deadline |
|---|---|---|
| Obtain an Illinois driver's license | Illinois Secretary of State | within 90 days of establishing residency (out-of-state license valid until then) |
| Register any vehicle kept in Illinois, with Illinois insurance in place first | Illinois Secretary of State, Vehicle Services | within 30 days of establishing residency |
| Register to vote | Illinois State Board of Elections | online and mail registration closes 16 days before an election; grace-period in-person registration and voting runs from 27 days before Election Day through Election Day |
Declaration of Domicile
Illinois has no formal declaration-of-domicile filing comparable to Florida's county-level process. Domicile is established through conduct alone: buying or leasing a home, getting the Illinois license and plates, registering to vote, and shifting the pattern of where professional, banking, and family life actually happens.
Homestead
The General Homestead Exemption reduces the equalized assessed value of an owner-occupied principal residence by up to $10,000 in Cook County, $8,000 in the counties bordering Cook, and $6,000 elsewhere, and requires ownership and occupancy as of January 1 of the tax year. It functions as useful domicile evidence for someone establishing Illinois residency, since applying for it requires attesting the home is a principal residence, and county assessors can cross-check driver's license and voter registration addresses against the exemption claim.
Voter Registration
Register online through the Illinois Online Voter Registration Application, by mail, or in person; online and mail registration closes 16 days before an election, with grace-period registration and same-day voting available from 27 days before Election Day through Election Day itself. https://ova.elections.il.gov
Vehicle Registration Deadline
30 days
New Resident Tax Traps
A new full-year Illinois resident is taxed on worldwide income from the date Illinois residency begins, computed on Form IL-1040 with Schedule NR handling the split year. Because Illinois has no capital gains preference, a large gain realized right after establishing residency (stock sale, business sale, Roth conversion) is taxed at the full 4.95% flat rate with no bracket cushion the way some other states offer at lower income levels.
What Changes on Tax
West Virginia Top Rate
5.12% (2026, top bracket)
Illinois Top Rate
4.95% (flat)
Moving from West Virginia to Illinois drops the top marginal income tax rate from about 5.12% to about 4.95%, a reduction of roughly 0.17 percentage points.
Withholding Reciprocity
West Virginia and Illinois 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
West Virginia and Illinois both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.
Beyond Income Tax
West Virginia
Capital gains: West Virginia has no separate capital gains rate. Gains are included in federal adjusted gross income and taxed as ordinary income under the same graduated brackets.
Estate or inheritance tax: None. West Virginia repealed its inheritance tax in 2005 and has no separate state estate tax; only the federal estate tax, with its much higher exemption, can apply.
Property tax: Average effective property tax rate is roughly 0.5%, among the lowest in the country. Homeowners 65 or older or permanently and totally disabled can exempt the first $20,000 of assessed value under the homestead exemption, with an additional income-based Senior Citizens' Tax Credit available to lower-income seniors already enrolled in the homestead program.
Sales tax: State sales tax rate is 6%, with some municipalities adding a local option sales tax on top, bringing the combined rate above 6% in those cities.
Illinois
Capital gains: No preferential rate. Capital gains are taxed as ordinary income at the same 4.95% flat rate as wages.
Estate or inheritance tax: Illinois has an estate tax with a $4 million exemption per estate that is not indexed for inflation and is not portable between spouses. Rates are graduated from roughly 0.8% up to 16% on the amount above the exemption. There is no separate inheritance tax.
Property tax: Illinois has the highest statewide effective property tax rate in the country, around 1.92% of home value, more than double the national median. The General Homestead Exemption reduces the taxable assessed value of an owner-occupied principal residence by up to $10,000 in Cook County, $8,000 in counties bordering Cook, and $6,000 elsewhere.
Sales tax: State base rate is 6.25%, but local home-rule and county taxes push combined rates as high as 11.5% in parts of Cook, Kane, and Warren counties; the effective statewide average is closer to 8.9%.
Who This Move Applies To
Travel Nurses
In West Virginia
West Virginia applies the same statutory tests to a travel nurse as anyone else: a nurse who is not domiciled in West Virginia but keeps a permanent abode in the state and exceeds 183 days there during assignments becomes a statutory resident on worldwide income. The nationally common pattern, a nurse claiming a no-tax-state tax home while actually living full-time in a rental near a West Virginia hospital assignment, is treated under the same test rather than any nurse-specific carve-out.
In Illinois
Illinois has no statutory day-count test to trip, so a travel nurse not domiciled in Illinois does not become an Illinois resident merely by crossing a day threshold on a long assignment. What creates exposure instead is the temporary or transitory question and the 100.3020(f) presumptions: an assignment structured as a series of renewals that keeps a nurse in Illinois more than nine months of a year, or more days than in any other state, supports a presumption of residency that must be rebutted by clear and convincing evidence, and the permanent or temporary nature of the work assignment is named in the rule as relevant evidence. The more common Illinois exposure is the reverse pattern, where a nurse claims a Florida or Texas tax home but actually lives in and pays Illinois-area rent for most of the year; Illinois-source wages for days actually worked in Illinois are taxable to any nonresident nurse regardless of claimed tax home.
Professional Athletes
In West Virginia
West Virginia has no major-league NFL, NBA, MLB, or NHL franchise, so it has no visible jock-tax infrastructure comparable to states with home teams. Nonresident athletes, entertainers, or contractors earning income for events performed in West Virginia are still subject to the state's standard nonresident sourcing and withholding rules on Form IT-140 Schedule A, but there is no published West Virginia-specific duty-days regulation.
In Illinois
Illinois taxes nonresident professional athletes on a duty-day basis: Illinois-source income equals total compensation multiplied by the ratio of duty days in Illinois (games, practices, mandatory team functions) to total duty days for the season; mere travel through Illinois without a game or team event does not create a duty day. This applies to visiting teams playing the Bears, Bulls, Blackhawks, White Sox, and Cubs, and Illinois is regarded by practitioners as an aggressive, well-enforced jock-tax state that historically extended the tax reciprocally to any state that taxed Illinois-based athletes.
Snowbirds, Long Visitors, and RVers
In West Virginia
West Virginia's 30-day domiciliary carve-out is directly built for the snowbird scenario: a West Virginia domiciliary who gives up any permanent West Virginia abode, keeps a genuine permanent home elsewhere, and limits West Virginia presence to 30 days or fewer for the full year is not treated as a resident despite retaining West Virginia domicile in the traditional sense. The trap is keeping a West Virginia house 'just in case,' since that alone can defeat the no-permanent-abode condition even if the 30-day count is respected.
In Illinois
The Illinois snowbird risk runs entirely through the 100.3020(f) presumptions, not through a day threshold. A retiree who keeps the Illinois house and spends more than nine months there risks the nine-month presumption of residency, and a former Illinois resident is presumed to still be one in the following year if present in Illinois more days than in any other state, which is a comparison a snowbird splitting a year can lose well short of any traditional threshold. The favorable counterweight is Cain v. Hamer, 2012 IL App (1st) 112833, where retirees who split time nearly evenly (1,666 Illinois days against 1,700 Florida days across 1996 through 2004) were held nonresidents, with the court weighing nexus evidence such as Florida licenses, voter registration, a Florida declaration of domicile, club spending, and credit card data showing 73% of expenditures and 61% of transactions outside Illinois. Illinois's General Homestead Exemption is a specific cross-check point if a person claims Florida domicile but keeps the Illinois exemption active.
Remote Workers
In West Virginia
West Virginia has no published convenience-of-the-employer rule. A nonresident who works remotely for a West Virginia-based employer while physically located and domiciled outside the state is generally not taxed by West Virginia on that income, since wages are sourced to where the work is actually performed.
In Illinois
Illinois has no convenience-of-the-employer rule. A nonresident who works remotely from another state for an Illinois-based employer is generally not taxed by Illinois on those wages, because Illinois sources employee compensation to where the services are physically performed, not to the employer's location. This makes Illinois meaningfully less sticky for remote workers than New York or a handful of other convenience-rule states.
Military
In West Virginia
West Virginia follows the federal SCRA and Military Spouses Residency Relief Act: a servicemember whose domicile is West Virginia retains that domicile and remains a West Virginia taxpayer regardless of duty station, while a nonresident servicemember stationed in West Virginia on orders is not taxed by the state on military pay solely because of the duty station. Military spouses can generally elect the servicemember's state of legal residence under MSRRA as amended.
In Illinois
Illinois follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A servicemember whose home of record is Illinois remains an Illinois domiciliary for tax purposes regardless of duty station unless they take affirmative steps to change domicile, while a servicemember stationed in Illinois on orders, and their qualifying spouse, does not become an Illinois resident solely because of the posting, and military pay is not Illinois-source income for a nonresident servicemember stationed there.
Airline Crew
In West Virginia
Federal law (49 U.S.C. §40116) limits states to taxing an air carrier employee's compensation only in the state of residence and any state where more than 50% of pay is earned, protecting flight crew who work through a West Virginia-based operation from having their full income pulled into West Virginia taxation solely because of their duty station if they are domiciled elsewhere.
In Illinois
Federal law (49 U.S.C. §40116) limits states to taxing airline employee 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 at O'Hare or Midway who are domiciled outside Illinois from having their full compensation pulled into Illinois taxation solely because their duty station is in Illinois.
Tools for This Move
West Virginia to Illinois FAQ
I'm domiciled in West Virginia but barely spend time there anymore. Am I still taxed as a resident?+
Possibly not, and West Virginia has an explicit statutory answer for this. Under W. Va. Code §11-21-7, a West Virginia domiciliary is not treated as a resident for tax purposes if, for the full year, they maintain no permanent place of abode in West Virginia, do maintain a permanent place of abode elsewhere, and spend 30 days or less in West Virginia. All three conditions have to hold together; keeping a West Virginia house available, even if rarely used, can defeat the exception.
Does Illinois have a 183-day rule like New York or Minnesota?+
No. This is the single most common misconception about Illinois residency. 35 ILCS 5/1501(a)(20) contains no day-count threshold and no permanent place of abode prong; a resident is someone in Illinois for other than a temporary or transitory purpose, or an Illinois domiciliary absent for a temporary or transitory purpose. What Illinois has instead are the rebuttable presumptions in 86 Ill. Adm. Code 100.3020(f), including a presumption of residency above nine months in the aggregate and a presumption that a prior-year resident remains one if present in Illinois more days than in any other state. The practical difference is real in both directions: crossing 183 Illinois days does not by itself make you a resident, and staying under 183 does not by itself make you a nonresident.
How many days can I spend in West Virginia before I become a resident if I'm not domiciled there?+
If you're not domiciled in West Virginia, you become a statutory resident only if you both maintain a permanent place of abode in the state and spend more than 183 days there during the tax year, under W. Va. Code §11-21-7. Days alone, without a maintained abode, don't trigger residency, and an abode alone, without exceeding 183 days, doesn't either.
If I move to Florida but keep my Chicago condo, will Illinois still tax me?+
Keeping the condo does not by itself make you taxable, because Illinois has no permanent place of abode test that a retained condo could trigger. The risk runs through purpose and presumptions instead. If you spend more than nine months of the year in Illinois, or simply more days there than in any other state after a year as an Illinois resident, the Department gets a presumption of residency you can rebut only by clear and convincing evidence. Continuing to claim the General Homestead Exemption on the condo is worse than the condo itself, since that alone creates its own presumption of Illinois residency and is a cross-check Illinois auditors run directly against a claimed out-of-state domicile.
If I keep a lake house in West Virginia but live somewhere else most of the year, could that trigger residency?+
It can, in two different ways. If you're not domiciled in West Virginia, exceeding 183 days there while maintaining that house makes you a statutory resident regardless of domicile. If you are domiciled in West Virginia and are trying to rely on the 30-day carve-out, keeping the lake house as a usable, available residence, rather than genuinely giving it up, can itself defeat the exception's 'no permanent place of abode' requirement, even if you personally spend fewer than 30 days there.
Does Illinois have a convenience-of-the-employer rule for remote workers?+
No. Illinois sources employee wages to where the work is physically performed, not to where the employer is headquartered. A nonresident who works remotely from another state for a Chicago-based employer generally is not taxed by Illinois on those wages, which is a meaningful difference from convenience-rule states like New York, and it means remote workers face less Illinois exposure after moving away than they might expect.
I live in West Virginia but work in Maryland (or Ohio, Pennsylvania, Virginia, or Kentucky). Do I pay tax twice?+
Generally no, on wages. West Virginia has reciprocal withholding agreements with Kentucky, Maryland, Ohio, Pennsylvania, and Virginia, so a West Virginia resident's wages earned in one of those states are exempt from that state's income tax, and the same holds in reverse for residents of those states working in West Virginia. You typically need to file the correct exemption certificate with your employer to actually stop the nonresident state from withholding, and you must still report the income on your West Virginia resident return.
How do I file my Illinois taxes for the year I move out of state?+
File Form IL-1040 together with Schedule NR, the Nonresident and Part-Year Resident Computation of Illinois Tax. Schedule NR splits your income between the period you were an Illinois resident, which is taxed in full, and the period after you became a nonresident, when only Illinois-source income is taxed. Skipping Schedule NR and simply filing as a full-year nonresident in your move year is a common and easily flagged mistake.
Does West Virginia still tax Social Security benefits?+
Not anymore, as of the 2026 tax year. West Virginia phased out its tax on Social Security benefits over three years: a 35% deduction in 2024, 65% in 2025, and a full 100% exemption starting in 2026. That makes West Virginia one of the last states to eliminate Social Security taxation, but as of 2026 benefits are fully exempt regardless of income level.
I work in Illinois but live in Wisconsin. Do I have to file two state returns?+
Illinois has reciprocity with Wisconsin, Iowa, Kentucky, and Michigan, so a Wisconsin resident working in Illinois generally does not owe Illinois tax on those wages and should not have Illinois tax withheld; instead, only Wisconsin taxes that income. If Illinois tax was withheld in error, you file for a refund from Illinois rather than claiming a credit, and you report the income on your Wisconsin return as usual.
Does keeping the West Virginia homestead exemption hurt my case if I claim residency somewhere else?+
Yes, it works against you. The homestead exemption requires the property to be your owner-occupied primary residence, so continuing to claim it on a West Virginia home while filing as a nonresident or relying on the 30-day carve-out directly contradicts that position. It's one of the more concrete records a reviewer can check against your claimed residency status.
Will keeping the homestead exemption on my Illinois house hurt me if I claim Florida residency?+
Yes, it's a direct contradiction auditors specifically look for. The General Homestead Exemption requires the property to be your owner-occupied principal residence as of January 1, so continuing to receive it while filing as an Illinois nonresident and claiming Florida domicile undercuts your own position. If you've genuinely moved, removing the exemption is one of the concrete steps that supports your new domicile claim.
Considering the reverse move?
Illinois to West Virginia
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Illinois to West Virginia guideAlso Consider, Leaving West Virginia
West Virginia to Illinois Reading
Reviewed Against 28 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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