Residency Migration Reference
Moving from New Mexico to Kentucky: Residency, Taxes, and What to Prove
The top income tax rate drops from 5.90% in New Mexico to 3.5% (flat rate, tax year 2026) in Kentucky. Establishing Kentucky residency correctly is what protects that benefit.
Residency Tests Side by Side
New Mexico uses a 185-day statutory residency threshold, while Kentucky uses 183 days. Track both thresholds separately during a transition year rather than assuming they line up.
| Factor | New Mexico | Kentucky |
|---|---|---|
| Statutory Residency Test | A taxpayer is a New Mexico resident if physically present in New Mexico for 185 days or more during the taxable year, under the definition in Section 7-2-2 NMSA 1978. This day-count test operates alongside a separate domicile test, either one can independently make a person a New Mexico resident for income tax purposes. | KRS 141.010 defines a resident as an individual domiciled in Kentucky, or an individual not domiciled in Kentucky who maintains a place of abode in the state and spends, in the aggregate, more than 183 days of the taxable year in Kentucky. Both prongs, an abode plus more than 183 aggregate days, are required for someone without Kentucky domicile to be taxed as a statutory resident. |
| Domicile Test | New Mexico's PIT-1 instructions define separate categories: full-year resident, part-year resident, first-year resident, and nonresident, turning on domicile and physical presence together. A person domiciled in New Mexico is a resident regardless of day count; a person domiciled elsewhere can still become a resident by crossing the 185-day threshold. Active-duty military personnel present in New Mexico solely on military orders are specifically carved out and do not become residents by presence alone. | 103 KAR 17:010 defines domicile simply as the place an individual has established permanent residency, and states that a domicile once obtained continues until a new one is acquired: it is not changed by removal for a definite period or for incidental purposes. A change of domicile requires three elements together: intent to change, actual removal, and establishment of a new abode. The regulation does not publish a weighted multi-factor list the way New York's guidelines do; the three-element test is applied to the facts case by case. |
| Day Count Threshold | 185 days | 183 days |
| Any Part of a Day Rule | The Department's published guidance frames the rule as days of physical presence during the taxable year rather than explicit any-part-of-a-day language; no New Mexico-specific carve-out for medical emergencies or pass-through travel was located in this research pass, so the conservative planning assumption is that any day with New Mexico presence counts toward the 185-day figure. | Kentucky's regulation does not define whether a partial day counts, unlike New York's explicit any-part-of-a-day rule. The statute counts days in the aggregate across the year, so practitioners generally treat any day with in-state presence as counting toward the 183-day threshold absent published guidance to the contrary. |
| Presumptions | 185 or more days of physical presence in New Mexico during the taxable year makes a taxpayer a resident under Section 7-2-2 NMSA 1978, independent of domicile. | 103 KAR 17:010, Section 2 creates a boomerang presumption: if someone who moved out of Kentucky returns to Kentucky within six months of the move, the state treats the departure as not intended to be permanent, and the individual is considered a resident (or part-year resident for the period the abode was elsewhere) for that time. Section 4 separately presumes a Kentucky domiciliary who moves abroad and files as a federal nonresident citizen is still a Kentucky resident, unless they present sufficient evidence the Kentucky domicile was abandoned. |
| Safe Harbors | Military presence exception | None published |
Leaving New Mexico
New Mexico is not consistently named among the aggressive exit-audit states (New York, California, New Jersey, Connecticut, Maryland, Minnesota) in the practitioner sources reviewed for this research. The more common New Mexico fact pattern is the border dynamic with Texas: people living near Las Cruces, Albuquerque-adjacent commuter areas, or the Permian Basin oil and gas corridor who claim a Texas move for the income tax savings while continuing to spend significant time in New Mexico risk tripping the 185-day presumption regardless of their stated Texas domicile.
Trailing Income
New Mexico taxes New Mexico-source income earned by a nonresident after departure under standard sourcing rules, wages for work performed in New Mexico, oil and gas royalty and severance-adjacent income sourced to New Mexico property, and business income apportioned to New Mexico; no New Mexico-specific deferred-compensation clawback statute distinct from ordinary multistate sourcing was located.
Part-Year Filing
Part-year and first-year residents file Form PIT-1 with the appropriate residency status checked, allocating income to the New Mexico-resident portion of the year using the state's apportionment schedules; nonresidents with New Mexico-source income also file PIT-1 under the nonresident status.
Enforcement Methods
Common Exit Mistakes
Establishing Kentucky Residency
| Action | Agency | Deadline |
|---|---|---|
| Obtain a Kentucky driver's license | Kentucky Transportation Cabinet (DRIVE) | within 30 days of establishing residency |
| Title and register any vehicle kept in Kentucky | County Clerk / Kentucky Transportation Cabinet | within 10 days of establishing residency |
| Register to vote | Kentucky State Board of Elections | at least 29 days before an election |
Declaration of Domicile
Kentucky has no formal declaration-of-domicile filing comparable to Florida's county recording process. Domicile under 103 KAR 17:010 is proven through the three elements of intent, actual removal, and a new abode, demonstrated by conduct: home purchase or lease, driver's license, vehicle registration, and voter registration.
Homestead
Kentucky's homestead exemption is available to homeowners 65 or older or classified as totally disabled, with no income test, and removes $49,100 from a qualifying home's assessed value for the 2025-2026 cycle. Because the exemption requires the property be the applicant's primary residence, claiming it is meaningful evidence of Kentucky domicile and would directly contradict a nonresident tax claim on the same property.
Voter Registration
Register online, by mail, or in person at least 29 days before an election, regardless of method. https://vrsws.sos.ky.gov/ovrweb/
Vehicle Registration Deadline
10 days
New Resident Tax Traps
A new Kentucky resident is taxed on worldwide income from the date Kentucky domicile begins, reported on the full-year return or on Form 740-NP for a part-year move. People moving from a reciprocal state should promptly file the Kentucky withholding certificate change with their employer rather than continuing to rely on the reciprocity exemption, since Kentucky residents working in a reciprocal state are taxed by Kentucky on that income once they establish Kentucky domicile.
What Changes on Tax
New Mexico Top Rate
5.90%
Kentucky Top Rate
3.5% (flat rate, tax year 2026)
Moving from New Mexico to Kentucky drops the top marginal income tax rate from about 5.9% to about 3.5%, a reduction of roughly 2.4 percentage points.
Withholding Reciprocity
New Mexico and Kentucky 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
New Mexico is a community property state and Kentucky uses common law marital property rules. Property already characterized as community property generally keeps that character after the move, subject to the destination state's quasi-community-property treatment, while future acquisitions follow Kentucky's common law rules.
Beyond Income Tax
New Mexico
Capital gains: New Mexico allows individuals to deduct the greater of 40% of net capital gain income or $1,000 before applying the regular income tax rates, meaningfully reducing the effective rate on investment gains compared to ordinary income.
Estate or inheritance tax: None. New Mexico repealed its estate tax when it was tied to the federal state death tax credit and has no separate inheritance tax.
Property tax: Effective property tax rate on owner-occupied housing is about 0.63%. Property is assessed at one-third of market value, and homeowners can claim the statutory Head of Family exemption against the assessed value, with additional exemptions for veterans and disabled veterans; the exact current dollar figures for these exemptions could not be independently confirmed from a primary county assessor source in this research pass and should be checked with your county assessor before relying on them.
Sales tax: New Mexico uses a Gross Receipts Tax (GRT) rather than a traditional sales tax, levied on sellers and typically passed through to buyers; the state rate is 4.88% with local option additions pushing the average combined rate to about 7.67%, and rates vary meaningfully by municipality.
Kentucky
Capital gains: Kentucky has no separate capital gains rate. Gains are included in federal adjusted gross income, which flows through to the Kentucky return and is taxed at the same flat rate as ordinary income.
Estate or inheritance tax: Kentucky has no estate tax but is one of a small number of states with an inheritance tax, administered under KRS Chapter 140. Class A beneficiaries (spouse, children, parents, grandchildren) and, as of a 2026 law change, Class B beneficiaries (siblings, nieces, nephews, aunts, uncles) are exempt. Class C beneficiaries (more distant relatives, friends, unrelated entities) get only a $500 exemption before rates of 6% to 16% apply. The return is due within 18 months of death.
Property tax: Average effective property tax rate is about 0.74%, below the national average. The homestead exemption for owners 65 or older or totally disabled deducts $49,100 from assessed value for the 2025-2026 assessment cycle, with no income test, and the exempted amount adjusts every two years for inflation.
Sales tax: State sales tax rate is 6%, and Kentucky does not permit local add-on sales taxes, so 6% is also the effective combined rate statewide.
Who This Move Applies To
Travel Nurses
In New Mexico
New Mexico's hospital systems (Albuquerque, Las Cruces, Santa Fe, and rural critical-access facilities) draw travel nurses, and a nurse working New Mexico contracts needs to track cumulative New Mexico days against the 185-day threshold if New Mexico is not their claimed tax home; stacking consecutive New Mexico assignments can cross 185 days within a taxable year and trigger New Mexico resident status independent of the nurse's stated tax home elsewhere.
In Kentucky
Kentucky applies the same domicile and 183-day statutory tests to travel nurses as to anyone else; there is no separate published carve-out. A nurse who is not domiciled in Kentucky but keeps a Kentucky apartment and accumulates more than 183 aggregate days in the state during assignments can be treated as a statutory resident taxed on worldwide income. The more common national pattern, a nurse claiming a no-tax-state tax home while actually living in a rental near the assignment, applies to Kentucky assignments the same way it does elsewhere.
Professional Athletes
In New Mexico
New Mexico has no major professional sports franchise subject to jock-tax duty-day apportionment; the state's minor-league and collegiate sports activity does not generate the kind of multistate athlete residency questions seen in states with NBA, NFL, or MLB franchises.
In Kentucky
Kentucky has no major-league NFL, NBA, MLB, or NHL franchise, so it lacks the visible 'jock tax' infrastructure seen in states with home franchises. Kentucky still applies its standard nonresident sourcing rules on Form 740-NP to any income a nonresident athlete, driver, or entertainer earns for events performed in Kentucky, such as competing at Churchill Downs or Kentucky Speedway, but there is no published Kentucky-specific duty-days regulation the way several other states have adopted.
Snowbirds, Long Visitors, and RVers
In New Mexico
New Mexico's dynamic runs mostly along its Texas border rather than the classic Sun Belt snowbird pattern: retirees and remote workers who split time between a New Mexico home (Santa Fe, Taos, Albuquerque) and a Texas base need to track New Mexico days carefully, since crossing 185 days in New Mexico during the taxable year makes them a New Mexico resident on income tax regardless of a stated Texas domicile, the opposite of the incentive most snowbirds are chasing.
In Kentucky
A snowbird who keeps a Kentucky home while wintering elsewhere needs to watch the 183-day aggregate threshold along with the abode requirement; unlike states with an any-part-of-a-day rule, Kentucky's statute counts aggregate days across the year rather than penalizing brief in-and-out trips as harshly. The bigger trap for someone trying to leave Kentucky altogether is the six-month boomerang rule: moving away and returning within six months is treated under 103 KAR 17:010 as proof the move was never intended to be permanent.
Remote Workers
In New Mexico
New Mexico has no convenience-of-the-employer rule; a remote worker physically performing work from New Mexico for an out-of-state employer owes New Mexico tax on that New Mexico-source income under ordinary physical-presence sourcing, and generally does not separately owe the employer's home state tax on those same wages unless that state applies its own convenience rule, which matters for New Mexico arrivals from states like New York.
In Kentucky
Kentucky has no published convenience-of-the-employer rule. A nonresident who works remotely for a Kentucky employer while physically located and domiciled outside Kentucky is generally not taxed by Kentucky on that income, since Kentucky sources wages based on where the work is actually performed rather than the employer's location.
Military
In New Mexico
New Mexico hosts major installations (Kirtland Air Force Base and Sandia base cluster in Albuquerque, Cannon Air Force Base near Clovis, White Sands Missile Range, Holloman Air Force Base near Alamogordo), and its own PIT-1 instructions specifically exempt a servicemember present in New Mexico solely on military orders from becoming a resident by that presence alone, consistent with SCRA. New Mexico also follows MSRRA for military spouses, generally allowing an eligible spouse to retain the servicemember's state of legal residence.
In Kentucky
Under 103 KAR 17:010 Section 6, which incorporates the federal Soldiers' and Sailors' Civil Relief Act (the predecessor to today's SCRA), a servicemember retains the domicile held when they entered the service. A Kentucky domiciliary who enters the military stays liable for Kentucky income tax on all income regardless of where they are stationed unless they affirmatively change domicile and submit conclusive evidence the Kentucky domicile has been abandoned and a new one established elsewhere.
Airline Crew
In New Mexico
Albuquerque International Sunport is a regional hub with limited crew basing compared to major carrier hubs; federal law (49 U.S.C. § 40116) limits state taxation of air carrier employees to their state of residence and, in narrow cases, a state where more than 50% of pay is earned, which applies to any New Mexico-domiciled crew the same as in any other state.
In Kentucky
Federal law (49 U.S.C. §40116) limits states to taxing an air carrier employee's pay only in the employee's state of residence and any state where more than 50% of pay is earned, which protects flight crew who work through a Kentucky hub, such as UPS's Worldport operations in Louisville, from Kentucky taxing their full income solely because Kentucky is their duty station if they are domiciled elsewhere.
Tools for This Move
New Mexico to Kentucky FAQ
I live near the Texas border and spend a lot of time on both sides. When do I become a New Mexico resident?+
New Mexico uses a bright-line test: 185 or more days of physical presence in New Mexico during the taxable year makes you a resident under Section 7-2-2 NMSA 1978, regardless of where you claim domicile. This runs independently of the domicile test, so even a genuine Texas domicile does not protect you if your New Mexico day count crosses 185.
How many days can I spend in Kentucky before I become a resident for tax purposes?+
If you're not domiciled in Kentucky, you become a statutory resident only if you both maintain a place of abode in Kentucky and spend more than 183 aggregate days in the state during the tax year, under KRS 141.010. Both conditions have to be true together: days alone, without an abode, don't trigger statutory residency, and an abode alone, without exceeding 183 days, doesn't either.
Does New Mexico tax my Social Security?+
Not if you're under the income thresholds: single filers under $100,000 and joint filers under $150,000 pay no state tax on Social Security benefits. Above those thresholds, benefits become taxable, though lower-income seniors 65+ can also claim an $8,000 deduction against retirement income generally.
I moved out of Kentucky but had to move back a few months later. Does that reset my residency clock?+
No, and this is a Kentucky-specific trap. Under 103 KAR 17:010, Section 2, if you move out of Kentucky and return within six months, the state treats the original move as never having been intended to be permanent, and you're considered a resident, or part-year resident, for the entire period your abode was elsewhere. There's no exception listed for a job that fell through or a family emergency; the six-month rule applies regardless of the reason for returning.
What form do I file for the year I move to or from New Mexico?+
Form PIT-1, checking the part-year or first-year resident status as applicable, which allocates your income between the New Mexico-resident and nonresident portions of the year using the state's apportionment schedules.
What does it actually take to change my domicile away from Kentucky?+
103 KAR 17:010 requires three things together: intent to change your domicile, actual physical removal from Kentucky, and establishment of a new abode elsewhere. A domicile once established continues until all three are met; simply leaving for a defined period, like a work assignment with a planned end date, or for an incidental purpose doesn't change it. Kentucky's regulation is notably shorter and less factor-heavy than states like New York, but the three-part test is still a real bar to clear.
I'm active duty and stationed at Kirtland or Cannon. Does that make me a New Mexico resident?+
No. New Mexico's own PIT-1 instructions specifically exempt a servicemember present in New Mexico solely on military orders from becoming a resident by that presence alone, consistent with the federal Servicemembers Civil Relief Act, and an eligible military spouse can generally retain the servicemember's state of legal residence under MSRRA.
I'm in the military and my home of record is Kentucky, but I'm stationed elsewhere. Do I still owe Kentucky tax?+
Yes, generally. Under 103 KAR 17:010, Section 6, which applies the federal servicemembers' relief protections, you retain the domicile you had when you entered the service. If that domicile was Kentucky, you remain liable for Kentucky income tax on all your income regardless of where you're stationed, unless you affirmatively change domicile and can show conclusive evidence the Kentucky domicile has been abandoned and a new one established elsewhere.
How are capital gains taxed in New Mexico?+
New Mexico lets you deduct the greater of 40% of your net capital gain income or $1,000 before the regular income tax rates apply, which meaningfully lowers the effective rate on investment gains compared to ordinary wage income taxed at the same brackets.
I work in Ohio but live in Kentucky (or vice versa). Do I have to pay tax to both states?+
Generally no, on wages. Kentucky has reciprocal agreements with Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia, and Wisconsin, so wages and salaries earned in one of those states by a Kentucky resident are exempt from that state's income tax, and the reverse holds for residents of those states working in Kentucky. The Virginia agreement is narrower: it only applies to taxpayers who commute daily to work in the nonresident state. You need to file the right exemption certificate with your employer, such as Kentucky's Form K-4, to actually stop withholding.
Does New Mexico have an estate or inheritance tax?+
No. New Mexico has neither an estate tax nor an inheritance tax, so only the federal estate tax exemption threshold matters for a New Mexico domiciliary's estate planning.
I moved abroad and file my federal return as a nonresident citizen. Am I still a Kentucky resident for state tax?+
Kentucky presumes yes, if Kentucky was your domicile immediately before you moved to the foreign country. Section 4 of 103 KAR 17:010 creates a presumption of continued Kentucky residency for nonresident citizens in this situation. You can overcome it, but you need to present sufficient evidence that you genuinely abandoned Kentucky domicile, not just that you now live and file federally as if abroad.
Considering the reverse move?
Kentucky to New Mexico
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Kentucky to New Mexico guideAlso Consider, Leaving New Mexico
New Mexico to Kentucky Reading
Reviewed Against 14 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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