Residency Migration Reference
Moving from Colorado to Indiana: Residency, Taxes, and What to Prove
The top income tax rate drops from 4.40% in Colorado to 2.95% (flat, state) + county income tax in Indiana. Establishing Indiana residency correctly is what protects that benefit.
Residency Tests Side by Side
Colorado does not use a simple day-count threshold; it applies a facts-and-circumstances test instead. Indiana's statutory residency test uses a 183-day threshold.
| Factor | Colorado | Indiana |
|---|---|---|
| Statutory Residency Test | Under Colorado Department of Revenue Rule 39-22-103(8)(a), a natural person is a Colorado resident if either domiciled in Colorado or the person satisfies the six-month rule: maintaining a permanent place of abode in Colorado and spending, in the aggregate, more than six months of the tax year in Colorado. A permanent place of abode is any place a person has a possessory right to live, including a leased apartment or an employer-paid apartment the person actually pays for and returns to on days off; a motel room or an RV camp lot without hookups generally does not qualify. | Indiana Code 6-3-1-12 and 45 IAC 3.1-1-21 define a resident two independent ways: an individual domiciled in Indiana during the tax year, or an individual who is not domiciled in Indiana but maintains a permanent place of residence in the state and spends more than 183 days of the taxable year in Indiana. Indiana guidance explicitly notes the 183-day/permanent-residence test is a separate, independent basis for residency, not itself a test for domicile. |
| Domicile Test | Colorado's domicile rule defines domicile as a place of abode combined with the present intention of returning after any absence, regardless of how long the absence lasts. A person can have only one domicile at a time (with a narrow exception for genuine seasonal dual-domicile arrangements), domicile continues until affirmatively changed, and the burden of proving a change rests on the person asserting it. The regulation lists 18 non-exclusive indicia the Department weighs, including prior domicile, length of time in the new place, spouse/dependent location, driver's license and vehicle registration jurisdiction, voter registration, employment location, government benefits received, mailing address for financial documents, professional licenses, prior-year filing positions, and even social media statements of residency; no single factor controls. | Under 45 IAC 3.1-1-22.5, Indiana presumes a person has not abandoned Indiana domicile if they maintained a permanent residence in Indiana and satisfy at least one of: claiming a homestead deduction or military tax exemption on an Indiana home, voting in Indiana, occupying an Indiana residence more days of the year than any other single state, claiming a federal tax benefit based on Indiana being the principal residence, or having a place of employment or business in Indiana. Supplementary factors include driver's license and vehicle registration location, dependent claims, mailing address, bank accounts, organizational memberships, and where professional services and valuables are located. |
| Day Count Threshold | No fixed threshold | 183 days |
| Any Part of a Day Rule | The regulation text sets the threshold as 'more than six months' rather than a codified exact day count, so practitioners generally treat it as 183-plus days. The published rule does not spell out an explicit any-part-of-a-day counting convention the way New York's does; absent that guidance, taxpayers close to the line should assume any day with Colorado presence could be counted and keep contemporaneous records. | Indiana's statute uses 'more than 183 days,' which mirrors New York's and Illinois's phrasing; Indiana guidance does not publish a specific carve-out exempting partial days, and practitioners treat any day with meaningful Indiana presence as counting toward the total absent a documented exception like medical treatment or transit. |
| Presumptions | The place where a person currently lives is presumed to be their current domicile, and once domicile is established it is presumed to continue. Spouses are presumed to share a domicile until separated. A person who lives in a motorhome and owns no real property elsewhere is treated as a full-year Colorado domiciliary if their permanent ties are here and they spend more aggregate time in Colorado than anywhere else; conversely, someone who owns a home in another state but travels to Colorado seasonally is not treated as a Colorado domiciliary absent other factors. | 45 IAC 3.1-1-22.5 creates a presumption against abandonment of Indiana domicile whenever a person kept a permanent Indiana residence and meets at least one of the five primary factors listed above (homestead claim, voting, most-days-in-state, federal filing benefit, or Indiana employment); this presumption is rebuttable but places real weight on continuing to hold any one of those Indiana connections. |
| Safe Harbors | None published | None published |
Leaving Colorado
Colorado does not have the reputation or enforcement infrastructure of California, New York, or the other states named repeatedly in practitioner and taxpayer discussions (California, New York, New Jersey, Connecticut, Maryland, Minnesota) as aggressive residency-audit states. The Department's own domicile regulation is unusually detailed and taxpayer-facing, which suggests the state has litigated or ruled on enough close cases to want the factor list written down, but there is no publicly documented pattern of large-scale departing-resident sweeps comparable to California's FTB program. The people most likely to draw scrutiny are those who keep a Colorado home, spouse, or dependents in place while claiming to have moved, or who cross the six-month permanent-place-of-abode threshold while still filing as a nonresident.
Trailing Income
Colorado-source income, such as income from Colorado real property, a Colorado business, or Colorado-performed services, continues to be taxed to nonresidents after departure via the DR 0104PN nonresident computation. Colorado has no state-specific convenience-of-employer rule reaching remote workers who have genuinely left, and deferred compensation from qualifying retirement plans generally follows the federal 4 U.S.C. §114 rule reserving taxation to the state of residence at the time each payment is received.
Part-Year Filing
Form DR 0104, the Colorado Individual Income Tax Return, filed together with the DR 0104PN, Part-Year Resident/Nonresident Tax Calculation Schedule, which prorates tax so it applies only to income received while a Colorado resident plus any Colorado-source income earned before arriving or after leaving.
Enforcement Methods
Common Exit Mistakes
Establishing Indiana Residency
| Action | Agency | Deadline |
|---|---|---|
| Transfer driver's license and register any vehicle kept in Indiana | Indiana Bureau of Motor Vehicles | within 60 days of establishing residency |
| Register to vote | Indiana Election Division | 29 days before Election Day for online, mail, and in-person registration |
| File Form HC10 for the Homestead Standard Deduction on a purchased primary residence | County Auditor | on or before January 1 of the assessment year for that year's deduction, or as part of the sales disclosure at closing |
Declaration of Domicile
Indiana has no county-level declaration-of-domicile filing like Florida. Domicile is established through the conduct listed in 45 IAC 3.1-1-22.5: buying or leasing a home, registering to vote, obtaining the Indiana license and plates, claiming the homestead deduction, and shifting where employment and business activity actually occur.
Homestead
The Homestead Standard Deduction reduces assessed value by the lesser of $48,000 or 60% of assessed value on an owner-occupied principal residence, with an additional supplemental deduction on the remaining assessed value. Because Indiana law specifically directs the Department of Local Government Finance and county auditors to develop procedures to catch homestead claimants whose actual principal residence is outside Indiana, claiming or removing this deduction is a real, checkable data point for anyone establishing or leaving Indiana domicile.
Voter Registration
Register online, by mail, or in person at least 29 days before Election Day; Indiana does not offer same-day registration. https://indianavoters.in.gov
Vehicle Registration Deadline
60 days
New Resident Tax Traps
A new full-year Indiana resident is taxed on worldwide income from the date Indiana residency begins, reported on Form IT-40PNR for the split year, which also requires sorting out the county income tax based on county of residence. New residents should identify their county's local tax rate promptly, since it stacks on top of the 2.95% state rate and varies substantially, from roughly 0.5% in some counties to over 3% in others.
What Changes on Tax
Colorado Top Rate
4.40%
Indiana Top Rate
2.95% (flat, state) + county income tax
Moving from Colorado to Indiana drops the top marginal income tax rate from about 4.4% to about 2.95%, a reduction of roughly 1.45 percentage points.
Withholding Reciprocity
Colorado and Indiana 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
Colorado and Indiana both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.
Beyond Income Tax
Colorado
Capital gains: Taxed as ordinary income at the flat 4.40% rate. Colorado once allowed a broad $100,000 capital gain subtraction for qualifying property held five-plus years, but for tax years commencing on or after January 1, 2022 that subtraction was narrowed to apply only to capital gains recognized by farmers who file federal Schedule F on the sale of agricultural real property. Nearly everyone else pays the full flat rate on gains.
Estate or inheritance tax: None. Colorado has no estate tax and no inheritance tax.
Property tax: Effective rate is roughly 0.50% of value, among the lowest in the country. Colorado's Senior Property Tax Exemption is a targeted homestead-style break, not a general portability system: it exempts 50% of the first $200,000 of actual value for owners 65 and older who have owned and occupied the home for at least 10 consecutive years, funded by state reimbursement to counties when the legislature appropriates it.
Sales tax: 2.90% state rate, with average combined state-and-local rates around 7.89% once city, county, and special-district taxes are layered on.
Indiana
Capital gains: No preferential rate. Capital gains are taxed as ordinary income at the flat state rate plus the applicable county rate.
Estate or inheritance tax: Indiana has no state estate tax and no inheritance tax; Indiana repealed its inheritance tax effective 2013. Only the federal estate tax, with its roughly $15 million per-person exemption in 2026, can apply to an Indiana decedent's estate.
Property tax: Indiana's average effective property tax rate is around 0.8% of home value, among the lower rates in the Midwest. The Homestead Standard Deduction reduces assessed value by the lesser of $48,000 or 60% of assessed value for an owner-occupied principal residence, with an additional supplemental deduction on the remaining value; county auditors are directed to develop procedures specifically to catch owners whose actual principal residence is outside Indiana.
Sales tax: Indiana has a flat statewide 7% sales tax, sometimes called the Gross Retail Tax, with no additional local sales tax layered on top anywhere in the state.
Who This Move Applies To
Travel Nurses
In Colorado
Denver, Colorado Springs, and the Front Range hospital systems make Colorado a significant travel-nurse market. A nurse whose actual domicile is Colorado and who takes Colorado contracts is simply taxed as a resident. A nurse who claims a Colorado tax home while working assignments in other states needs a genuine, regularly used, duplicated-expense Colorado residence; the same indicia list the Department applies to ordinary domicile disputes (driver's license, voter registration, time actually spent) applies to a nurse's claimed tax home, and a thin paper trail risks the same stipend-to-wages reclassification travel nurses face in every state.
In Indiana
Indiana applies its ordinary domicile and 183-day/permanent-residence tests to a travel nurse the same as anyone else: a nurse not domiciled in Indiana who keeps a permanent Indiana residence and is present more than 183 days becomes an Indiana resident on worldwide income for that year, plus the applicable county tax. The more frequent exposure runs the other way, where a nurse claims a Florida or Texas tax home while actually renting in Indiana for most of an assignment; Indiana taxes nonresident wages for days actually worked in the state regardless of the claimed tax home.
Professional Athletes
In Colorado
Colorado is home to the Broncos, Nuggets, Rockies, and Avalanche, and nonresident athletes on visiting teams owe Colorado tax on the duty days they spend in the state under standard apportionment against total season duty days. Because Colorado's rate is a flat 4.40% with no separate capital-gains carve-out, the jock-tax math is simpler than in graduated-rate states, but the liability is real and applies to every visiting team that plays a game in Denver.
In Indiana
Indiana taxes nonresident professional athletes using the standard duty-day formula applied across nearly all income-tax states: total season compensation multiplied by the ratio of Indiana duty days (games, practices, and mandatory team functions in the state) to total duty days for the season. This applies to visiting NFL and NBA teams playing the Colts and Pacers in Indianapolis, and Indiana's flat, comparatively low rate means the dollar amount at stake per game is smaller than in higher-rate states, though the filing obligation is the same.
Snowbirds, Long Visitors, and RVers
In Colorado
Colorado's scenario runs in both directions. Wealthy buyers in Aspen, Vail, Telluride, and other mountain resort towns who keep a primary domicile elsewhere need to track aggregate days against the six-month, permanent-place-of-abode threshold, since a leased or owned ski home plainly qualifies as a permanent place of abode. Separately, Colorado's own domiciliaries who spend winters in Arizona or Florida remain presumed Colorado domiciliaries under the regulation's continuing-domicile presumption unless they affirmatively establish a new domicile elsewhere, so simply wintering out of state does not by itself cut Colorado ties.
In Indiana
The Indiana snowbird risk runs through the same domicile-abandonment presumption that protects year-round Indiana residents: a retiree who keeps a permanent Indiana residence, continues to vote in Indiana, or keeps the homestead deduction active while wintering in Florida is presumed not to have abandoned Indiana domicile. Separately, spending more than 183 days in Indiana in a year while maintaining a permanent Indiana residence independently triggers Indiana residency regardless of domicile intent.
Remote Workers
In Colorado
Colorado has no convenience-of-employer rule: a nonresident performing all work physically outside Colorado for a Colorado-based employer is not Colorado-taxed on those wages solely because the employer is headquartered here. Colorado has been a significant landing spot for remote workers relocating from California, Texas, and the coasts since 2020, and the state has no reciprocal withholding agreements with any other state, so a genuine mid-year move still requires the DR 0104PN part-year split rather than a simple withholding switch.
In Indiana
Indiana has no convenience-of-the-employer rule. A nonresident who works remotely from another state for an Indiana-based employer is generally not taxed by Indiana on those wages, since Indiana sources employee compensation to where the work is physically performed rather than to the employer's location.
Military
In Colorado
Colorado follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A service member stationed in Colorado on orders does not become a Colorado domiciliary from the posting alone, and neither does an accompanying spouse who elects to keep the service member's home-state domicile under MSRRA. Colorado also offers a military retirement subtraction that interacts with, but does not simply duplicate, the general pension and annuity subtraction.
In Indiana
Indiana follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A servicemember whose domicile was Indiana before entering service remains an Indiana domiciliary regardless of duty station unless they affirmatively establish a new domicile, while a servicemember stationed in Indiana on orders, and a qualifying spouse, does not become an Indiana resident solely because of the posting; Indiana also allows a deduction for certain military retirement income.
Airline Crew
In Colorado
Denver International Airport (DEN) is a major hub for United Airlines and a large Southwest Airlines operation, giving Colorado a meaningful resident and crew-base airline population. Federal law (49 U.S.C. §40116) limits state taxation of air carrier employees to their state of residence and any state where they earn more than 50% of their pay, which matters directly for DEN-based crew who fly national routes.
In Indiana
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, protecting flight crew based at Indianapolis International who are domiciled outside Indiana from full-income Indiana taxation based solely on their duty station.
Tools for This Move
Colorado to Indiana FAQ
Does Colorado use the 183-day rule?+
Not exactly as codified. Colorado's six-month rule under Department Rule 39-22-103(8)(a) makes you a statutory resident if you keep a permanent place of abode in Colorado and spend more than six months (commonly treated as 183-plus days) here in the aggregate during the year, separate from and in addition to the ordinary domicile test.
Does Indiana have a 183-day rule separate from domicile?+
Yes, and Indiana is explicit that the two are independent tests. Under IC 6-3-1-12 and 45 IAC 3.1-1-21, you're an Indiana resident if you're domiciled in Indiana, or separately, if you're not domiciled in Indiana but maintain a permanent Indiana residence and spend more than 183 days in the state during the year. Indiana's own guidance says the 183-day test is not itself a test for domicile, so you can fail one and still be caught by the other.
How does Colorado decide if I'm still domiciled here after I move?+
Colorado weighs 18 non-exclusive factors, including where your driver's license, vehicle registration, and voter registration are, where your spouse and dependents live, your employment location, your mailing address for financial documents, and even public statements of residency. No single factor controls, and once Colorado domicile is established it's presumed to continue until you affirmatively establish a new one elsewhere.
If I move to Florida but keep voting absentee or in person in Indiana, does that hurt my case?+
Yes, directly. Indiana's domicile-abandonment rule under 45 IAC 3.1-1-22.5 presumes you haven't given up Indiana domicile if you keep a permanent Indiana residence and continue voting in Indiana, among other listed factors. Re-registering to vote in your new state, and actually voting there, is one of the more concrete steps that supports a genuine domicile change.
I bought a place in Aspen but I'm domiciled in Texas. Do I owe Colorado tax?+
Not from domicile alone, since a person who owns a home in another state but visits Colorado seasonally isn't treated as a Colorado domiciliary absent other factors. But the ski home is a permanent place of abode, so if your aggregate Colorado days exceed six months in a year, the separate statutory six-month rule makes you a Colorado resident regardless of your Texas domicile.
Will keeping the homestead deduction on my Indiana house hurt me if I claim I moved to Florida?+
Yes. Indiana law specifically directs the Department of Local Government Finance and county auditors to develop procedures to identify homestead deduction claimants whose actual principal residence is outside Indiana, so continuing to claim it while filing as a nonresident elsewhere is exactly the kind of contradiction those procedures are built to catch. If you've genuinely moved, notifying your county auditor to remove the deduction is one of the concrete steps supporting your new domicile.
What form do I file if I only lived in Colorado part of the year?+
Form DR 0104 along with the DR 0104PN, the Part-Year Resident/Nonresident Tax Calculation Schedule, which prorates your Colorado tax to income earned while you were a Colorado resident plus any Colorado-source income earned before you arrived or after you left.
How does Indiana's county income tax work if I move counties or move out of state mid-year?+
On top of the flat 2.95% state rate, every Indiana county levies its own income tax, ranging roughly from 0.5% to over 3%, and your county rate generally depends on your county of residence. When you move into or out of Indiana mid-year, Form IT-40PNR handles both the state and county allocation for the split year, which makes Indiana's exit-year filing meaningfully more involved than a state with a single flat rate and no local layer.
Does Colorado tax Social Security and retirement income?+
Yes, but with a growing subtraction. Through 2025 the pension and annuity subtraction (which covers qualifying Social Security, pensions, and certain IRA income) is capped at $20,000 for filers 55 to 64 and $24,000 for filers 65 and older. Starting with tax year 2026, Colorado removes that cap entirely, letting any individual subtract their full qualifying pension and annuity income.
I live in Kentucky and work in Indiana. Do I owe Indiana income tax on my wages?+
No, not on wages. Indiana has reciprocity agreements with Kentucky, Michigan, Ohio, Pennsylvania, and Wisconsin, so a Kentucky resident's wages earned working in Indiana are taxed only by Kentucky, not Indiana, and Indiana withholding should not apply. Reciprocity covers wage income only; investment, rental, and business income from Indiana sources are still taxable by Indiana.
Does Colorado have a capital gains tax?+
Capital gains are taxed as ordinary income at the flat 4.40% rate. Colorado used to allow a broad $100,000 subtraction for long-held qualifying property, but since tax year 2022 that subtraction only applies to farmers who file federal Schedule F on the sale of agricultural real property, so most taxpayers get no special break on gains.
Does Indiana tax my Social Security or pension after I retire?+
Social Security is fully exempt from both Indiana state and county tax. Pension, 401(k), and IRA distributions are taxed as ordinary income at the flat state rate plus your county's local rate, since Indiana doesn't offer the kind of broad age-based retirement income exclusion that Illinois or Michigan provide, aside from a modest deduction for certain military and railroad retirement income.
Considering the reverse move?
Indiana to Colorado
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Indiana to Colorado guideAlso Consider, Leaving Colorado
Colorado to Indiana 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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