Residency Migration Reference
Moving from Illinois to Puerto Rico: Residency, Taxes, and What to Prove
Illinois's 4.95% (flat) top income tax rate becomes 33% under Puerto Rico's general individual schedule; 0% to 4% on qualifying income for holders of an Act 60 Individual Resident Investor decree in Puerto Rico. This move trades a lighter tax environment for a heavier one, so timing income around the transition year matters.
Residency Tests Side by Side
Illinois does not use a simple day-count threshold; it applies a facts-and-circumstances test instead. Puerto Rico's statutory residency test uses a 183-day threshold.
| Factor | Illinois | Puerto Rico |
|---|---|---|
| Statutory Residency Test | 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. | Puerto Rico has no separate day-count 'statutory residency' overlay the way New York or California does. Bona fide residency is governed entirely by the federal IRC section 937 three-part 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. Hacienda applies this identical federal standard, and Form 8898 (filed with the IRS, not Hacienda) is the formal notice of becoming or ceasing to be a bona fide resident once worldwide gross income exceeds $75,000 for the year. |
| Domicile Test | 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. | The closer connection test functions as Puerto Rico's domicile test. Treasury Regulation 1.937-1(c) weighs 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, comparing total Puerto Rico contacts against the total of U.S. and foreign contacts combined. |
| Day Count Threshold | No fixed threshold | 183 days |
| Any Part of a Day Rule | 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. | Any part of a day physically present in Puerto Rico counts as a full day of Puerto Rico presence. If someone is physically present in both Puerto Rico and the mainland U.S. on the same calendar day, that day counts as a Puerto Rico day, not a U.S. day. Exceptions carve out days outside Puerto Rico for qualified inpatient medical treatment, days lost to a presidentially declared major disaster or mandatory evacuation order, and up to 30 days of business or personal travel outside both Puerto Rico and the U.S., but that 30-day rule only applies if Puerto Rico days already exceed U.S. days without it. |
| Presumptions | 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. | 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 Illinois
Illinois is not in the top tier of aggressive exit-audit states the way New York or California are, but the Department of Revenue does examine departing high earners, especially where a large capital gain or business sale occurred near the claimed move date, or where the taxpayer kept an Illinois home, spouse, or business presence after claiming nonresidency. Auditors reconstruct day counts using credit card statements, toll records, airline records, and utility usage, and they cross-check the General Homestead Exemption against a claimed out-of-state domicile.
Trailing Income
Illinois does not have a convenience-of-the-employer rule, so a former resident who telecommutes for an Illinois employer from another state generally is not taxed by Illinois on those wages solely because the employer is based in Illinois; sourcing follows where the work is actually performed. Illinois does tax nonresident income that is Illinois-source, including compensation for services actually performed in Illinois, gain on the sale of Illinois real property, and a departing resident's share of Illinois business income allocated under the state's apportionment rules for the period they were still a resident or doing business in the state.
Part-Year Filing
Form IL-1040 together with Schedule NR, Nonresident and Part-Year Resident Computation of Illinois Tax, is used for the year someone moves into or out of Illinois. Schedule NR allocates income between the Illinois-resident portion of the year and the nonresident portion, and computes an Illinois tax based only on Illinois-source and Illinois-period income.
Enforcement Methods
Common Exit Mistakes
Establishing Puerto Rico Residency
| Action | Agency | Deadline |
|---|---|---|
| Get a Puerto Rico driver's license | DTOP (Departamento de Transportación y Obras Públicas) via CESCO | no fixed statutory deadline; practitioners recommend doing this within 30 to 60 days to build closer-connection evidence |
| Register a vehicle and obtain the annual marbete decal | DTOP / CESCO Digital | marbete must be renewed annually |
| Register to vote | Comisión Estatal de Elecciones (CEE) | register at a regional Junta de Inscripción Permanente; no fixed arrival deadline but ahead of any election you intend to vote in |
| Purchase a Puerto Rico principal residence (Act 60 Individual Investor decree holders) | n/a, private real estate transaction, reported to DDEC | within 2 years of decree issuance, from an unrelated seller, held individually or in a qualifying trust, not through an LLC |
| File the CRIM homestead exemption on the primary residence | CRIM (Centro de Recaudación de Ingresos Municipales) | file after the home becomes the owner-occupied primary residence |
Declaration of Domicile
Puerto Rico has no Florida-style sworn Declaration of Domicile filing. Bona fide residency is proven entirely through the federal section 937 factual record: a Puerto Rico driver's license, Puerto Rico voter registration, Puerto Rico bank accounts, and a CRIM homestead filing on an owner-occupied Puerto Rico home are the closest functional equivalents, and are exactly what an IRS examiner requests when reviewing a Form 8898 position.
Homestead
CRIM's homestead exemption removes $150,000 from the (outdated, 1958-based) cadastral assessed value of an owner-occupied primary residence, which zeroes out or sharply reduces property tax for many homes. Filing it also functions as evidentiary support for the closer connection test, and DDEC cross-checks it against Act 60 decree compliance for Individual Investor decree holders who are required to buy and occupy a Puerto Rico home.
Voter Registration
Register through the Comisión Estatal de Elecciones (CEE) at a regional Junta de Inscripción Permanente office or the eRE online portal: https://www.ceepur.org. Being registered to vote in Puerto Rico, and not in a state, is itself one of the significant-connection factors weighed in both the presence test's 'no significant U.S. connection' prong and the closer connection test.
Vehicle Registration Deadline
null days
New Resident Tax Traps
The single biggest trap is treating the Act 60 decree as a finish line: the decree only fixes the tax rate, it does not establish bona fide residency, which must be proven independently every year under all three section 937 prongs. The second is the 10-year built-in-gain sourcing rule on pre-move investment assets, which surprises new residents who assume the 0% capital gains rate covers appreciation that happened before they relocated.
What Changes on Tax
Illinois Top Rate
4.95% (flat)
Puerto Rico Top Rate
33% under Puerto Rico's general individual schedule; 0% to 4% on qualifying income for holders of an Act 60 Individual Resident Investor decree
Moving from Illinois to Puerto Rico raises the top marginal income tax rate from about 4.95% to about 33%, an increase of roughly 28.05 percentage points.
Withholding Reciprocity
Illinois and Puerto Rico 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
Illinois uses common law marital property rules and Puerto Rico is a community property state. Property acquired during marriage after the move may be characterized differently going forward, which matters for estate planning and for basis step-up on a spouse's death.
Beyond Income Tax
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%.
Puerto Rico
Capital gains: Outside Act 60, Puerto Rico taxes long-term capital gains at a preferential rate separate from the ordinary brackets. Under an Act 60 Individual Resident Investor decree, interest, dividends, and capital gains that accrue after the person becomes a bona fide Puerto Rico resident are taxed at 0%. Gains that had already accrued on investment property before the move remain taxable under the federal 10-year built-in-gain sourcing rule in Treasury Regulation 1.937-2(f), so the 0% rate does not retroactively cover pre-move appreciation.
Estate or inheritance tax: Puerto Rico has no separate territorial estate or inheritance tax of its own. Under IRC section 2209, Puerto Rico-situs property of a Puerto Rico-domiciled decedent is generally outside the federal estate tax base, but non-Puerto Rico assets and the treatment of U.S. citizens domiciled in Puerto Rico involve source-specific rules that require estate-planning specialists, not a simple 'no tax' answer.
Property tax: CRIM (Centro de Recaudación de Ingresos Municipales) still assesses most property against cadastral values fixed around 1958, so assessed value is far below market value; combined municipal and central government rates run roughly 8% to 12% of that outdated assessed value, and a $150,000 exemption against the cadastral value applies to an owner-occupied primary residence.
Sales tax: The combined Impuesto sobre Ventas y Uso (IVU) is 11.5% (10.5% state plus 1% municipal), one of the highest combined sales/use tax rates anywhere under the U.S. flag.
Who This Move Applies To
Travel Nurses
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.
In Puerto Rico
Puerto Rico is not a major travel-nurse assignment market compared to the 50 states, but the underlying tax-home analysis is identical to any state: a nurse claiming a Puerto Rico tax home must actually maintain and return to a Puerto Rico home between assignments, not just hold a Puerto Rico mailing address, or the IRS can disallow both the federal tax-home claim for stipend purposes and any bona fide residency position at the same time.
Professional Athletes
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.
In Puerto Rico
No MLB, NFL, NBA, or NHL franchise is based in Puerto Rico, so there is no home-team jock-tax apportionment regime specific to the island. Puerto Rico has hosted MLB regular-season games in San Juan in past seasons, and visiting athletes owe Puerto Rico-source tax on income attributable to duty days actually worked on the island under Puerto Rico's general nonresident withholding rules, the same way any other jurisdiction taxes a visiting player's local duty days.
Snowbirds, Long Visitors, and RVers
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.
In Puerto Rico
A mainland resident who buys a Puerto Rico winter home while keeping a permanent U.S. home will generally fail the closer connection test even after hitting 183 Puerto Rico days, unless family, banking, driver's license, and voter registration also move to Puerto Rico. Puerto Rico's version of the empty-apartment trap is a homestead-exempted condo that sits mostly unused while the owner still files as a mainland resident elsewhere, and that exact pattern is what DDEC and the IRS look for in an Act 60 audit, since the Individual Investor decree requires a genuine, occupied primary residence, not a part-time one.
Remote Workers
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.
In Puerto Rico
Puerto Rico itself has no convenience-of-the-employer rule, but the origin state's rule still applies if the employer is mainland-based: a New York-headquartered employer that continues to treat a Puerto Rico-based remote worker as New York-sourced under New York's convenience rule can create a real double-taxation dispute, since Puerto Rico taxes the worldwide income of its bona fide residents and New York may also claim the wages. Puerto Rico also requires its own employer withholding registration (Form 499), and employers unfamiliar with that process are a frequent source of friction for new movers.
Military
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.
In Puerto Rico
Puerto Rico follows the federal Servicemembers Civil Relief Act (SCRA) and the Military Spouses Residency Relief Act (MSRRA): a servicemember's home-of-record does not change solely because of orders stationing them in Puerto Rico, and a civilian spouse can elect to keep the servicemember's tax residence. An active-duty member whose state of legal residence is Puerto Rico is treated as a bona fide Puerto Rico resident for military pay regardless of duty station under Publication 570, which is a meaningful planning point because it keeps that pay outside federal income tax as Puerto Rico-source income.
Airline Crew
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.
In Puerto Rico
San Juan's Luis Muñoz Marín International Airport (SJU) is a crew base for several U.S. carriers, including JetBlue. The federal carve-out at 49 U.S.C. section 40116, which restricts taxation of air carrier employees except by their state (or territory) of residence and, in limited cases, a jurisdiction where they earn more than 50% of their pay, applies to Puerto Rico the same way it applies to the 50 states. Crew who are bona fide Puerto Rico residents owe Puerto Rico tax on their wages under the mirror federal framework rather than U.S. federal tax on Puerto Rico-source pay.
Tools for This Move
Illinois to Puerto Rico FAQ
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.
If I get an Act 60 decree, am I automatically a bona fide Puerto Rico resident?+
No. The decree only sets your tax rate once you qualify; it does not establish bona fide residency. You must separately satisfy the federal section 937 presence test, tax home test, and closer connection test every single tax year, and the IRS's active Act 60 compliance campaign is built specifically around decree holders who assume the paperwork alone is proof.
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.
How many days do I actually need to spend in Puerto Rico to be safe?+
183 days is the cleanest path and satisfies the presence test on its own, but it is only one of five alternatives (there is also a 549-day/3-year test, a 90-day U.S. cap, a low-U.S.-income test, and a no-significant-U.S.-connection test). Presence alone is not enough: you also need to pass the tax home test and closer connection test, and IRS examples show taxpayers with fewer than 183 days keeping a mainland vacation home, voter registration, or family have still failed on closer connection despite meeting an alternate presence prong.
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.
Can I keep a house on the mainland after moving to Puerto Rico for Act 60?+
You can own one, but keeping it available as a livable home while you're not there works against you on the closer connection test, which compares your Puerto Rico ties to the total of your U.S. and foreign ties. Renting it out at fair market value with limited personal use is safer than leaving it available for your own stays; a mainland home that still functions as a family gathering place is the fact pattern IRS examiners specifically target.
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 buying a home in Puerto Rico under my Act 60 decree count as proof I live there?+
It's required and helpful, but not sufficient by itself. The Individual Investor decree requires you to purchase a Puerto Rico principal residence within two years, from an unrelated seller, held personally or in a qualifying trust rather than an LLC, and DDEC does check compliance. But an unoccupied or lightly used property paired with weak day counts and continued mainland ties can still fail both the decree's residency requirement and the federal bona fide residency test.
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.
What happens if the IRS decides I wasn't really a bona fide Puerto Rico resident?+
You lose the Act 60 rate for the years in question and owe federal tax on income you treated as excluded, plus interest and penalties. The pending Karakashian v. Commissioner case shows how aggressive this can get: the IRS is seeking a 75% civil fraud penalty of roughly $5 million on top of the underlying tax for a single disputed year, arguing the taxpayer failed all three residency tests despite claiming 209 days on the island.
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.
Do I still owe US federal income tax on my Puerto Rico wages?+
If you are a bona fide Puerto Rico resident, Puerto Rico-source income is generally excluded from your federal return under IRC section 933, and you instead file Form 482 with Hacienda on your worldwide income. Income sourced outside Puerto Rico, such as wages from work physically performed on the mainland, is not covered by that exclusion and can still trigger a federal filing requirement.
Planning the reverse move?
Puerto Rico to Illinois
Moving the other direction is a different fact pattern, not a mirror image. Establishing Illinois residency has its own tests, deadlines, and audit posture.
Start with the Illinois residency guideAlso Consider, Leaving Illinois
Illinois to Puerto Rico Reading
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