Moving from Montana to Alabama: Residency, Taxes, and What to Prove

In Montana

Billings, Missoula, and Montana's regional hospital systems generate real but modest travel-nurse demand given the state's population. A nurse genuinely domiciled in Montana who takes Montana contracts is taxed as an ordinary resident. A nurse claiming a Montana tax home while working elsewhere needs a real, regularly used, duplicated-expense Montana residence, since Montana's facts-and-circumstances domicile standard applies the same evidentiary weight to a claimed tax home as it does to any other domicile dispute.

In Alabama

Alabama's major hospital systems (UAB in Birmingham, Huntsville Hospital) are significant travel-nursing markets. Because Alabama's presumption threshold is a cumulative seven months rather than 183 days, a nurse needs to track total months of Alabama presence across contracts within the tax year against that higher bar, while remembering that maintaining a permanent place of abode in Alabama is a separate condition of the presumption, not an automatic trigger from days alone.

In Montana

Montana has no major professional franchise in the four big US leagues, so jock-tax exposure runs primarily one direction: Montana-domiciled athletes playing professionally elsewhere are taxed by those other states under their own apportionment rules, while nonresident athletes competing in occasional Montana events (college sports revenue aside) owe Montana tax on Montana-source income under standard nonresident sourcing.

In Alabama

Alabama has no major-league professional sports franchise, so its jock-tax exposure runs entirely through visiting athletes and, more prominently, college athletics: NIL (name, image, likeness) income earned by student-athletes at Alabama's major programs is Alabama-source income subject to the state's standard individual income tax rates, an increasingly relevant issue as NIL payments have grown.

In Montana

Because Montana's permanent-place-of-abode test has no codified day-count threshold, a long-term visitor or second-home owner in a resort area like Whitefish, Big Sky, or the Flathead Valley cannot rely on staying under a specific number of days the way they could in a state with a 183-day rule; the Department instead weighs the full facts and circumstances of how the home is used and how much time is actually spent there. Montana's own domiciliaries who winter in Arizona or elsewhere remain presumed Montana residents under the 'residence cannot be lost until another is gained' rule unless they affirmatively establish a new domicile.

In Alabama

Alabama's Gulf Coast (Gulf Shores, Orange Beach) draws seasonal visitors, but the seven-month presumption is a materially higher bar than the 183-day rule used in most other states, meaning a snowbird can stay considerably longer in Alabama than they could in a 183-day state before triggering the statutory presumption, though genuine domicile-based residency remains possible even for a shorter stay if the person's conduct shows intent to make Alabama home.

In Montana

Montana has no convenience-of-employer rule: a nonresident performing all work physically outside Montana for a Montana-based employer is not Montana-taxed on those wages. Montana, particularly Bozeman, Missoula, and the Flathead Valley around Whitefish and Kalispell, has drawn a wave of remote workers relocating from higher-cost states since 2020, and the lack of a sales tax is a frequently cited draw alongside the income tax simplification.

In Alabama

Alabama has no convenience-of-the-employer rule. A remote worker physically performing work from Alabama for an out-of-state employer owes Alabama tax on that Alabama-source income under the state's standard sourcing rules; Alabama's full federal-income-tax deduction can meaningfully soften the effective state tax rate compared to states without that deduction.

In Montana

Montana follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A service member stationed in Montana under orders (Malmstrom Air Force Base near Great Falls is the state's major installation) does not become Montana-domiciled from the posting alone. Montana's 2024 tax simplification added a subtraction for certain resident working military retirees and military survivor-benefit recipients, on top of the general federal SCRA/MSRRA protections.

In Alabama

Alabama follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act, but its own regulation is notably taxpayer-unfriendly on the presumption side: federal employees and military personnel domiciled in Alabama remain presumptively Alabama residents, taxed on worldwide income, until they affirmatively prove a change of domicile, meaning a permanent change of station alone does not end Alabama tax residency without proof of genuine domicile abandonment. Alabama fully exempts military retirement pay from state income tax, a significant draw for the state's sizable veteran population given its bases (Redstone Arsenal, Maxwell-Gunter, Fort Novosel).

In Montana

Montana's airports (Bozeman Yellowstone International being the busiest) are not major airline crew bases, so the more relevant federal carve-out for Montana residents working in transportation is the interstate rail and motor carrier employee rule: federal law limits taxation of such employees with regularly assigned duties in more than one state to their state of residence.

In Alabama

Alabama has a smaller commercial airline crew base than its neighbors, concentrated around Birmingham-Shuttlesworth. Federal law (49 U.S.C. § 40116) limits state taxation of air carrier employees to their state of residence and, narrowly, a state where more than 50% of pay is earned; crew domiciled in Alabama are taxed on their full wages under the state's standard resident rules.