Residency Migration Reference
Moving from Alabama to Washington, DC: Residency, Taxes, and What to Prove
Alabama's 5.00% top income tax rate becomes 10.75% (2026, on taxable income above $1,000,000) in Washington, DC. This move trades a lighter tax environment for a heavier one, so timing income around the transition year matters.
Residency Tests Side by Side
Alabama uses a 213-day statutory residency threshold, while Washington, DC uses 183 days. Track both thresholds separately during a transition year rather than assuming they line up.
| Factor | Alabama | Washington, DC |
|---|---|---|
| Statutory Residency Test | Alabama Administrative Code r. 810-3-2-.01 presumes an individual is an Alabama resident, even without domicile, if they maintain a permanent place of abode in Alabama and spend more than a total of seven months (not a simple 183-day count, and not required to be consecutive) in the state during the tax year. This is a materially higher bar than most 183-day states, since seven months is roughly 213 days. | Under D.C. Code § 47-1801.04(42), an individual is a DC resident if domiciled in DC at any time during the tax year, or if the individual maintained a place of abode in DC for an aggregate of 183 days or more during the tax year, regardless of domicile. The statutory prong does not require actual physical presence in DC for those days; it only requires that the taxpayer maintained ongoing, unfettered access to a DC dwelling for 183 or more days. That is a materially different test from the abode-plus-183-days-physically-present standard used by New York and most other statutory residency states, and it was the central fact in the Michael Saylor False Claims Act case described below. |
| Domicile Test | Alabama regulation defines domicile as the home, the fixed place of habitation, distinct from residence, which is described as a transient place of dwelling. An individual has only one domicile at a time; it continues until a new one is established and the old one is abandoned. Individuals domiciled in Alabama are taxed on worldwide income regardless of physical presence during the tax year, and the burden of proof for a change of domicile rests entirely on the taxpayer, including for federal employees and military personnel who remain presumptively Alabama residents until they prove the change. | DC follows the common law two-part domicile test applied in Bartholomew v. District of Columbia Office of Tax and Revenue: physical presence in the new location, plus a genuine intent to abandon the former domicile and remain in the new one for an indefinite period. Once OTR has assessed, the burden is on the taxpayer to prove both elements. OTR and the Office of Administrative Hearings weigh the full pattern of a person's life, including where they own or lease housing, where a spouse and family live, voter and vehicle registration, and where the person actually spends time, with no single factor controlling. A temporary or transitory absence from DC does not, by itself, change domicile. |
| Day Count Threshold | 213 days | 183 days |
| Any Part of a Day Rule | Not addressed with a published carve-out list; the seven-month presumption is based on cumulative months of presence with a maintained permanent place of abode rather than a strict any-part-of-a-day count, which is a materially different mechanic from the day-counting states. | DC's statutory test is not a physical-presence day count, so the usual 'any part of a day counts' question does not apply the way it does in New York or California. What DC counts is days of maintained access to a DC abode, meaning an owned or leased DC residence the taxpayer could return to and use, whether or not they were actually in the District that day. A genuine lease-out that cuts off the taxpayer's own access is what breaks the count; simply being physically absent from DC while still holding a key does not. |
| Presumptions | More than seven cumulative months in Alabama during the tax year, combined with maintaining a permanent place of abode, creates a rebuttable presumption of residency even absent domicile (Ala. Admin. Code r. 810-3-2-.01). | None published beyond the two statutory tests themselves. DC has no separate day-count presumption comparable to California's nine-month presumption or New Mexico's 185-day rule. |
| Safe Harbors | None published | Congressional staff and elected-official exemption |
Leaving Alabama
Practitioner commentary (Bradley Arant Boult Cummings, via the Alabama Society of CPAs) describes an increased number of residency audits by the Alabama Department of Revenue (ALDOR) in recent years, referencing a 2023 Alabama Tax Tribunal ruling on change-of-residency requirements. ALDOR commonly identifies audit targets through its information-sharing agreement with the IRS: a federal return showing an Alabama address with no corresponding Alabama state return filed, or a W-2 listing an Alabama address without a matching state filing, are the two triggers specifically named in that commentary. As with most states, the taxpayer bears the burden of proof once ALDOR or another state initiates a residency challenge.
Trailing Income
Alabama taxes Alabama-source income (wages for work performed in-state, income from Alabama businesses or property) earned by nonresidents after departure under standard nonresident-sourcing rules; no Alabama-specific deferred-compensation or stock-option clawback provision distinct from ordinary multistate sourcing was identified in this research.
Part-Year Filing
A taxpayer who terminates Alabama residency during the year must notify ALDOR of the termination and file Form 40 reporting income for the resident portion of the year; if Alabama-source income continues after departure, a nonresident return (Form 40NR) is also required for that income.
Enforcement Methods
Common Exit Mistakes
Establishing Washington, DC Residency
| Action | Agency | Deadline |
|---|---|---|
| Get a DC driver license or ID | DC DMV | within 60 days of establishing DC residency if you drive in public |
| Register any vehicle kept in DC | DC DMV | within 60 days of establishing residency |
| Pass a DC DMV vehicle inspection | DC DMV | within 90 days of registration for most vehicles |
| Register to vote | DC Board of Elections | received at least 21 days before an election for advance processing; same-day registration available during early voting and on Election Day with proof of address |
| File the Homestead Deduction if you own and occupy your DC home | Office of Tax and Revenue | file by March 31 for the full current tax year; filed April 1 to September 30 gets half the current year and the full benefit going forward |
Declaration of Domicile
DC has no Florida-style formal declaration-of-domicile filing. Domicile is established through conduct and is later tested against the two-part physical-presence-plus-intent standard from Bartholomew: signing a DC lease or deed, getting a DC driver license and registering a vehicle there, registering to vote in DC, and the actual pattern of where you live and keep your life.
Homestead
The Homestead Deduction shields $91,950 of a DC home's assessed value from property tax in 2026, available only on an owner-occupied principal residence with no more than five dwelling units. It cuts both ways as evidence: applying for it supports a claim that you consider the DC property your primary home and domicile, while OTR runs an automated cross-match of homestead applicants against other jurisdictions' records specifically to catch people who keep the DC homestead while also filing as a resident, or claiming an equivalent break, somewhere else.
Voter Registration
Register online, by mail, or in person through the DC Board of Elections. Applications must be received at least 21 days before an election to be processed in advance, though DC also allows same-day registration during early voting and on Election Day with proof of a current DC address. https://www.dcboe.org/voters/register-to-vote
Vehicle Registration Deadline
60 days
New Resident Tax Traps
A new DC domiciliary is taxed on worldwide income from the date DC residency begins, reported on Form D-40 with the Part-Year Resident section completed for the year of the move. DC has no local sales tax variation to create a use-tax surprise, but a new resident titling a vehicle in DC owes DC excise tax on the transaction, and anyone buying a first DC home should file the Homestead Deduction promptly since a late application forfeits half a year of the benefit.
What Changes on Tax
Alabama Top Rate
5.00%
Washington, DC Top Rate
10.75% (2026, on taxable income above $1,000,000)
Moving from Alabama to Washington, DC raises the top marginal income tax rate from about 5% to about 10.75%, an increase of roughly 5.75 percentage points.
Withholding Reciprocity
Alabama and Washington, DC 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
Alabama and Washington, DC both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.
Beyond Income Tax
Alabama
Capital gains: Taxed as ordinary income at the standard graduated rates; Alabama has no separate, lower capital gains rate.
Estate or inheritance tax: None. Alabama has no estate tax and no inheritance tax.
Property tax: Alabama's effective property tax rate on owner-occupied housing is about 0.37%, one of the lowest in the country. Homeowners 65 and older who own and occupy a single-family home receive a full exemption from state property tax; county-level exemptions for seniors are separate and income-tested, up to $5,000 of assessed value for those with federal adjusted gross income under $12,000, and up to $2,000 for higher earners.
Sales tax: 4% state rate, but Alabama's local option sales taxes are among the highest in the country, pushing the average combined state-and-local rate to about 9.46%, among the top rates nationally.
Washington, DC
Capital gains: DC has no separate capital gains rate. Gains are taxed as ordinary income at the same graduated brackets, so a District resident in the top bracket can pay 10.75% on a capital gain, with none of the preferential long-term treatment federal law provides.
Estate or inheritance tax: DC has an estate tax but no separate inheritance tax. The 2026 exemption is $4,988,400 per estate, roughly a third of the federal exemption, so a District estate can owe DC estate tax even when it owes nothing federally. Taxable estates above the exemption are taxed at graduated rates from 11.2% up to 16%.
Property tax: The nominal Class 1 residential rate is $0.85 per $100 of assessed value. After the Homestead Deduction, which shields $91,950 of assessed value from tax in 2026, and other credits, the Tax Foundation puts DC's effective rate on owner-occupied housing at about 0.60%, low by national standards even as assessed values in the District have climbed quickly.
Sales tax: The general sales tax rate is 6% through September 30, 2026, rising to 7% on October 1, 2026 under the District's FY2026 budget. DC has no counties or independent municipalities layering on additional local tax, so the citywide rate is the only rate; prepared restaurant food and takeout carry a separate 10% rate.
Who This Move Applies To
Travel Nurses
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 Washington, DC
DC's federal prohibition on taxing nonresident income is unusually good news for travel nurses. A nurse whose tax home is genuinely elsewhere and who works a contract at a DC hospital, such as Georgetown, MedStar Washington Hospital Center, Children's National, or GW Hospital, owes no DC income tax on that assignment's wages or stipends, so long as they are not domiciled in DC and have not maintained a DC abode for 183 or more days; there is no DC-source nonresident withholding the way there would be almost anywhere else with an income tax. The exposure runs the other way: a nurse who takes back-to-back DC-area contracts in the same leased apartment can cross the 183-day abode-maintenance threshold and become a DC statutory resident taxed on all worldwide income, independent of what their agency's paperwork lists as their tax home.
Professional Athletes
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 Washington, DC
DC is one of the only income-tax jurisdictions in the country with no jock tax at all: Congress has repeatedly blocked DC Council attempts to tax nonresident athletes' duty-day income under the same Home Rule Act provision that bars any DC tax on nonresidents generally. Visiting players who take the court or ice at Capital One Arena (Wizards, Capitals) or the field at Nationals Park (Nationals) owe zero DC income tax on those games, unlike visiting players in every state that hosts an NBA, NHL, MLB, or NFL team. The Commanders currently play home games at Northwest Stadium in Landover, Maryland, so visiting teams' duty days there generate Maryland exposure rather than DC exposure; that changes once the team's planned stadium at the RFK campus in DC opens, expected around 2030, though DC's no-jock-tax rule means it still won't create DC tax on visiting players even then. DC-domiciled players on the Wizards, Capitals, Nationals, Mystics, or Commanders remain fully taxable by DC as residents on all of their income, including duty days played in states that do tax them as visitors.
Snowbirds, Long Visitors, and RVers
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 Washington, DC
The DC-specific snowbird risk differs from other high-tax jurisdictions: because the statutory test counts days a DC home is maintained rather than days physically present, a person who keeps a DC pied-a-terre available year-round while wintering elsewhere can cross 183 days of abode-maintenance even if they were only physically in DC a fraction of that time. Genuinely renting the DC unit out, with no reserved access for the taxpayer, is the fact pattern that breaks the abode-maintenance count; simply leaving it empty or available for personal use most of the year does not.
Remote Workers
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 Washington, DC
Because DC cannot tax nonresidents at all, it has no convenience-of-the-employer rule and no equivalent risk for someone who moves out of DC and keeps working remotely for a DC-based employer; once residency has genuinely ended, that income is simply outside DC's reach. The live issue for remote workers is the same statutory residency question everyone else faces: keeping a DC apartment as a part-time base while working remotely from elsewhere can, on its own, add up to 183 days of maintained abode access and trigger DC statutory residency regardless of where the paycheck is sourced.
Military
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 Washington, DC
DC follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A servicemember whose legal residence is outside DC does not become a DC domiciliary or statutory resident solely because military orders station them in the District, and military pay is not DC-source income. A nonresident military spouse living in DC under MSRRA can file Form D-4 with their employer to stop DC withholding, and either spouse can use Form D-40B to recover DC tax withheld in error.
Airline Crew
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.
In Washington, DC
DC itself has no commercial airport within its borders; Reagan National and Dulles are in Virginia and BWI is in Maryland, so DC does not have an airline crew base the way a hub city like Atlanta or Charlotte does. The federal wage-source rule for air carrier employees (49 U.S.C. § 40116) is largely moot for DC specifically, since DC's own bar on taxing nonresident income already goes further than that carve-out for any nonresident flight crew who might occasionally overnight in the District.
Tools for This Move
Alabama to Washington, DC FAQ
Does Alabama use the same 183-day rule as other states?+
No. Alabama's threshold is higher: a non-domiciled individual is presumed a resident only if they maintain a permanent place of abode in Alabama AND spend more than seven cumulative months (roughly 213 days, not required to be consecutive) in the state during the tax year, which is a materially higher bar than the 183-day rule used elsewhere.
I live in Maryland or Virginia but work in DC. Do I owe DC income tax on my paycheck?+
No. Federal law, specifically the Home Rule Act of 1973, bars DC from taxing any part of a nonresident's income, even wages earned by commuting into the District every day. File Form D-4A, Certificate of Nonresidence in DC, with your employer so they stop withholding DC tax; Maryland and Virginia residents working in DC pay tax only to their home state instead.
I filed my federal return with an Alabama address but didn't file an Alabama state return. Is that risky?+
Yes, practitioners specifically identify this as one of the patterns the Alabama Department of Revenue now catches through its information-sharing agreement with the IRS, along with a W-2 listing an Alabama address with no matching state filing. Both are described as active triggers for the increased number of residency audits ALDOR has been conducting.
I keep an apartment in DC that I only visit a few times a year, but I say I live in Florida. Could I still owe DC tax?+
Yes, and this is DC's biggest trap. Unlike most states, DC's statutory residency test does not count days you were physically present, it counts days you maintained access to a DC home. Under D.C. Code § 47-1801.04(42), keeping a DC place of abode available to you for 183 days or more in a year can make you a DC statutory resident taxed on worldwide income even if you were rarely actually in the District, unless the apartment is genuinely rented out with no reserved access for you.
Does Alabama tax my Social Security or pension when I retire here?+
Social Security is fully exempt, as is qualifying defined-benefit pension income (including Teachers' Retirement System and similar plans). Withdrawals from 401(k)s and IRAs, however, are taxed as ordinary income at Alabama's standard graduated rates, 2% to 5%, with no special exclusion.
How did DC catch Michael Saylor if he said he lived in Florida?+
A whistleblower sued under DC's False Claims Act, and the DC Attorney General's Office intervened with a complaint alleging Saylor's actual home was a penthouse overlooking the Georgetown waterfront, where he kept his yachts, while he filed as a Virginia and then Florida resident from 2005 to 2021. He and MicroStrategy settled in June 2024 for $40 million, the largest DC income tax recovery ever, without admitting wrongdoing. It shows DC will use ordinary lifestyle evidence, not just tax filings, to prove a claimed domicile change never actually happened.
I'm active duty military and Alabama was my home of record. Does a new duty station end my Alabama tax residency?+
Not automatically. Alabama's own regulation keeps federal employees and military personnel who are domiciled in Alabama presumptively Alabama residents, taxed on worldwide income, until they affirmatively prove a change of domicile. A permanent change of station alone is not enough; you need to show you genuinely established a new domicile and abandoned Alabama.
Do Hill staffers who work for their home-state member of Congress have to pay DC income tax?+
Not if they qualify for DC's specific carve-out. D.C. Code § 47-1801.04(42) exempts personal or committee staff of a member of Congress from DC resident status, even while living in DC during sessions, as long as the staffer is a bona fide resident of the same state as the member they work for. Staff who work for a member from a different state than where they actually live, or who take a job with a different employer, do not get this exemption and are taxed the same as anyone else living in DC.
What form do I file for the year I move out of Alabama?+
Notify ALDOR of the termination of Alabama residence and file Form 40 for the portion of the year you were an Alabama resident. If you continue earning Alabama-source income as a nonresident after the move, you'll also need Form 40NR for that income.
If I'm a travel nurse on a DC hospital contract, do I owe DC income tax even though my tax home is somewhere else?+
Generally no. Because DC cannot tax nonresident income at all, a travel nurse who is domiciled elsewhere and has not maintained a DC place of abode for 183 days or more in the year owes nothing to DC on that assignment's wages or stipends, unlike almost every state with an income tax. The risk is stacking multiple DC-area contracts in the same leased apartment long enough to cross 183 days of abode-maintenance, which can make you a DC statutory resident regardless of what your agency's paperwork says your tax home is.
How does Alabama's homestead exemption compare to Florida's?+
Much smaller in dollar terms because Alabama's effective property tax rate is already very low, about 0.37%. The meaningful benefit is age-based: owner-occupants 65 and older get a full state property tax exemption, with additional income-tested county exemptions. It functions more as domicile evidence in a dispute than as a major tax-savings mechanism the way Florida's Save Our Homes cap does.
Do visiting NBA, NHL, or MLB players pay DC income tax when they play a game at Capital One Arena or Nationals Park?+
No. DC is one of the only income-tax jurisdictions in the country with no jock tax on visiting athletes, because Congress has repeatedly blocked DC Council attempts to tax nonresident duty-day income under the same Home Rule Act provision that bars any DC tax on nonresidents generally. A visiting player who suits up against the Wizards, Capitals, or Nationals owes zero DC tax on that game check, something that would never happen in New York, California, or almost any other state with a major league team.
Considering the reverse move?
Washington, DC to Alabama
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the Washington, DC to Alabama guideAlso Consider, Leaving Alabama
Alabama to Washington, DC Reading
Reviewed Against 30 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.
Start your record
Build your Alabama to Washington, DC mobility map.
Start with a free map, document your center of life, then upgrade when you need evidence, advisor collaboration, and audit-ready reporting.
Create Free Mobility Map
