New York to Florida: The 184-Day Statutory Residency Trap

New York’s own Department of Taxation and Finance publishes the migration numbers, and they are not subtle. In the most recent IRS state-to-state data the department reports, 43,187 individual income tax returns moved from New York to Florida while 22,011 moved the other way, a net outflow of 21,176 returns, the largest between New York and any single state.

Almost everyone in that column prepares for the wrong fight. The preparation you read about, and the preparation most people actually do, is domicile preparation: the Florida license, the voter registration, the Declaration of Domicile, the argument that your heart and your life are now in Palm Beach County. That work matters. It is also not where this corridor usually breaks.

New York has two independent ways to tax you as a resident. One of them asks about your intentions and weighs a list of factors. The other asks two mechanical questions, never mentions intent, and will tax you on worldwide income for the entire year if the answer to both is yes. Someone moving from New York to Florida can execute a flawless domicile change, win that argument outright, and still lose the year. This article is informational and is not legal or tax advice; work through your own facts with a qualified CPA or tax attorney.

Tax Law section 605(b)(1) defines a resident individual two ways. Subparagraph (A) is domicile: you are a resident if New York is your domicile, subject to a narrow foreign-service safe harbor. Subparagraph (B) is the statutory residency test, and it reaches an individual who is not domiciled in New York but "who maintains a permanent place of abode in this state and spends in the aggregate more than one hundred eighty-three days of the taxable year in this state."

The implementing regulation, 20 NYCRR 105.20(a)(2), adds the timing gloss the statute leaves out: the abode must be maintained "for substantially all of the taxable year." So the test has two prongs. An abode in New York, held for substantially all of the year. And more than 183 days of presence.

Nothing in either prong asks where you intend to live, where your family is, where your dog sleeps, or where your business is run. Those questions belong to the domicile analysis, and the domicile analysis is a separate proceeding that you can win while losing this one. The Tax Department’s own nonresident guidance states the rule in the plainest possible terms: you are a New York resident if you maintain a permanent place of abode for substantially all of the taxable year and you "spend 184 days or more in New York State during the taxable year."

That is the whole trap in one sentence. The state does not have to prove you never left. It has to prove you kept a place and showed up.

The statute says more than 183, which makes the first failing day the 184th. Landing on exactly 183 is safe in New York. It is not safe everywhere, and that difference has caught people who moved once before out of a state with a different line. Minnesota, for example, uses more than one half of the tax year, which 183 days satisfies. Two states, two thresholds, one day apart, and the arithmetic is unforgiving in both.

What a day means is where the counting gets expensive. Under 20 NYCRR 105.20(c), "presence within New York State for any part of a calendar day constitutes a day spent within New York State." A breakfast meeting is a day. A flight that lands at 11:50 at night is a day. Driving into Manhattan to sign a closing and driving back out is a day. There is no de minimis threshold, no half-day, and no distinction between business and personal time.

The regulation carves out exactly two situations. Presence may be disregarded "if such presence is solely for the purpose of boarding a plane, ship, train or bus for travel to a destination outside New York State, or while traveling through New York State to a destination outside New York State." Both exceptions turn on the word solely. Connecting at JFK on the way to London is not a New York day. Connecting at JFK and stopping in the city for lunch is.

Run a rough count before you assume you are clear. A person who keeps a Manhattan apartment, spends the winter in Florida, comes back for the spring, and returns for holidays and a few board meetings can cross 184 without ever feeling like a New Yorker. A day count checker is worth running in March, not in the following March, because the count is trivial to keep in real time and very hard to reconstruct against a state that will ask for your toll records.

Days are hard to change. You have family, deals, doctors and a life. The abode prong is different, because it is a yes or no question about a piece of property, and property can be sold, surrendered or repurposed.

The regulation defines a permanent place of abode at 105.20(e)(1) as "a dwelling place of a permanent nature maintained by the taxpayer, whether or not owned by such taxpayer," and it "will generally include a dwelling place owned or leased by such taxpayer’s spouse." Ownership is not required. A lease is enough. Your spouse’s lease is generally enough.

For years the Tax Department read that definition close to literally: if a year-round dwelling existed and your name was attached to it, the prong was met. Two cases moved the line. In Matter of Gaied v. New York State Tax Appeals Tribunal, 22 N.Y.3d 592 (2014), decided February 18, 2014, the Court of Appeals considered a taxpayer who bought a multi-family building on Staten Island where his parents lived, kept the other units tenanted, and stayed in his parents’ apartment occasionally to attend to their medical needs. He filed as a nonresident and the Division assessed him. The Court held there was no rational basis for treating mere maintenance of a dwelling as sufficient, and that the taxpayer must have a residential interest in the property, meaning the dwelling has to be used as his residence, not merely owned or available.

Matter of Obus v. New York State Tax Appeals Tribunal, 206 A.D.3d 1511 (3d Dept 2022), decided June 30, 2022, applied Gaied to a vacation home. The Obuses were domiciled in New Jersey and owned a house in Northville, in Fulton County, more than four hours from Nelson Obus’s New York City job. He used it roughly three weeks a year, told the tenant in advance when he was coming, and kept no personal effects there. The Tax Appeals Tribunal had found the house to be a permanent place of abode on its objective characteristics. The Appellate Division reversed, holding that the analysis must weigh the taxpayer’s actual use of the dwelling, including the nature and duration of that use, not just whether the building was habitable and available. The Court of Appeals denied leave to appeal in March 2023, so Obus stands.

Read together, the two cases give you a real defense and a narrow one. A property you genuinely do not live in, do not keep things in, and cannot practically use as a residence may fall outside the prong. A Manhattan apartment you sleep in six weekends a year, keep clothes in, and treat as your place when you are in town does not.

The word "substantially" is where most of the planning happens, and New York quietly made that planning harder.

Under the 2014 Nonresident Audit Guidelines, the Tax Department treated "substantially all of the taxable year" as a period exceeding 11 months. Beginning with tax years starting in 2022, the revised guidelines define it as a period exceeding 10 months. This is not a taxpayer-friendly update, and it is sometimes described as one by mistake. A shorter required holding period means more dwellings qualify as permanent places of abode, so more people fall inside the statutory test, not fewer.

Hodgson Russ, whose Noonan’s Notes blog tracks these guidelines closely, gives two examples that show the size of the swing. A Connecticut-domiciled taxpayer who acquires a New York residence on February 21 and spends 184 days in New York would not have been a statutory resident under the 11-month rule. Under the 10-month rule, they are. A taxpayer who holds a New York residence, spends 184 days in the state, and sells on November 3 was previously outside the test. Under the current guidelines, they are inside it.

The flip side is that the 10-month rule is still a rule, and it still has an edge. Because both prongs must be satisfied, a New York abode held for 10 months or less does not trigger the test no matter how many days you spend in the state. If you are leaving New York in a given year and the apartment is going to go, the disposal date is a tax decision, not just a real estate one. Closing in late October is a different tax year from closing in December.

If you give up the abode, or if the abode fails under Gaied and Obus, New York falls back to domicile, and the burden is on you. The Tax Department’s own guidance states it directly: "your New York domicile does not change until you can demonstrate with clear and convincing evidence that you have abandoned your New York domicile and established a new domicile outside New York State." Clear and convincing is a higher standard than the preponderance standard that governs most tax disputes. The department adds that "it is not enough simply to file a certificate of domicile or register to vote in the new location."

Per our New York residency guide, the Nonresident Audit Guidelines and the department’s analysts weigh five primary factors: the size, cost and use of the home in each location, time spent in each location, the location of active business involvement, the location of near and dear personal items, and where the spouse and minor children live. No single factor controls.

Two decisions from the Division of Tax Appeals show how much room that leaves. In Matter of Blatt, DTA No. 826504 (Determination, Feb. 2, 2017), an IAC general counsel who became chief executive of Match in Dallas proved a November 2009 domicile change to Texas by clear and convincing evidence, and a 430,065 dollar notice of deficiency was canceled. He kept his owned Manhattan apartment and a Hamptons boat the entire time, and his Texas license and voter registration did not arrive until April and May of 2010. The administrative law judge found that his dog "was his near and dear item which reflected his ultimate change in domicile to Dallas," and expressly declined to adopt either side’s detailed day counts, because he was under 183 New York days in both years and the day count therefore did not decide the case.

In Matter of Patrick, DTA Nos. 826838 and 826839 (Determination, June 15, 2017), a taxpayer who claimed a 2011 move from New York City to Paris won cancellation of notices asserting 1,681,160 dollars in tax, 2,189,743.84 dollars with interest and penalties, even though the Division counted 168 New York days against 82 Paris days in 2011 and 183 New York days against 92 Paris days in 2012. The judge credited testimony about a reunion with a high school girlfriend he had not seen in nearly 40 years and later married. Note what the Division did not assert in either case: statutory residency. Both were domicile-only cases, which is exactly why intent evidence carried them.

The lesson is not that dogs and romances win audits. It is that the domicile fight is genuinely winnable on human facts, and the statutory fight is not winnable on human facts at all. If you can be pushed onto the statutory ground, your best evidence stops mattering.

New York City imposes its own resident income tax on top of the state tax, with a top city rate of 3.876 percent. Per our New York dossier, the state’s nine brackets top out at 10.9 percent, so a New York City resident in the top brackets can face a combined state and city rate near 14.8 percent before federal tax, and New York gives capital gains no preferential rate at all. Gains are taxed as ordinary income at the same graduated brackets, which is why a liquidity event is the single most expensive thing to mistime on this corridor.

The city runs the same domicile and statutory residency concepts on its own geography. Moving from Manhattan to Westchester ends city residency without touching state residency. Moving from Manhattan to Florida while keeping the Manhattan apartment can leave both intact. Track the two separately, because the city question can produce a tax bill on its own even in a year the state question goes your way.

A clean exit ends resident taxation. It does not end New York taxation. Part-year and nonresident filers use Form IT-203, on which you compute the tax as if you were a full-year resident and then apportion by the share of income allocable to the resident period plus New York-source income earned during the nonresident period.

The largest trailing item for anyone who keeps the same employer is the convenience of the employer rule. Under 20 NYCRR 132.18(a), a nonresident’s New York-source wages are determined by a workday ratio, and "any allowance claimed for days worked outside New York State must be based upon the performance of services which of necessity, as distinguished from convenience, obligate the employee to out-of-state duties." In practice that means your Florida workdays are New York workdays if your assigned or primary office is in New York and you are home because you prefer to be.

TSB-M-06(5)I, issued May 15, 2006, sets out how a home office escapes the rule. The office must meet either the primary factor, that the employee’s duties require special facilities that cannot be made available at the employer’s place of business but are available at or near the home, or at least 4 of 6 secondary factors and 3 of 10 other factors. The secondary factors include the home office being a requirement or condition of employment, the employer having a bona fide business purpose for that location, the employee performing core duties there, and meeting clients, patients or customers there on a regular and continuous basis. This is a high bar, and it is documentary: an employment agreement or a written employer policy does the work, not a recollection.

The rule survived its pandemic stress test. In Matter of Zelinsky, DTA Nos. 830517 and 830681 (Tribunal, May 9, 2025), covering tax years 2019 and 2020, the Tax Appeals Tribunal denied the taxpayers’ exception and sustained the Division’s refund denials, rejecting the argument that COVID-19 executive orders or an unavailable office amounted to necessity of the employer. If a closed office did not clear the bar, a preference for Florida will not.

Deferred compensation and stock options tied to services you performed while a New York resident or while working in New York stay New York-source after you move, which is why the vesting and exercise calendar belongs in the move planning. And per our dossier, New York’s estate tax is its own ambush: the 2026 basic exclusion amount is 7,350,000 dollars, and New York uses a cliff rather than a deduction. Once the taxable estate exceeds roughly 105 percent of the exclusion, about 7,717,500 dollars in 2026, the exclusion disappears entirely and the full estate is taxed, not just the excess. Per our Florida residency guide, Florida has no estate tax and no inheritance tax. On an estate near the cliff, the domicile question is worth more than several years of income tax.

Our New York dossier rates the state 5 out of 5 on audit aggressiveness and 5 out of 5 on exit stickiness, and it lists the enforcement methods New York uses to test a day count: cell phone location records, EZ-Pass and toll records, credit and debit card statements, medical, dental and veterinary records, airline and travel booking records, utility and cable bills, club, gym and religious institution membership records, and neighbor and informant tips.

One of those deserves its own paragraph. The STAR exemption cross-check against nonresident filing status is a self-inflicted wound, and it is common. STAR reduces school tax liability on an owner-occupied primary residence. Claiming it on a New York home while filing as a New York nonresident is a contradiction you signed, in writing, to a government body, and the state cross-checks Social Security numbers across parcels specifically to find duplicate primary-residence claims. Removing STAR on the New York property is as important as filing for homestead on the Florida one.

The timeline is long. Practitioners including Hodgson Russ describe a New York nonresident audit as typically examining the year at issue in depth while also pulling records from surrounding years to test whether a claimed domicile change was genuine and sustained rather than a one-year paper move, with the process commonly running 12 to 24 months from first contact to resolution. Our dossier notes that no published statewide figure exists for what defending one of these costs, and that New York practitioners informally describe a contested residency audit as running well into five figures in professional fees.

The lookback is longer still. Under Tax Law section 683, tax is generally assessed within three years after the return was filed. That stretches to six years if you omit from New York adjusted gross income an amount exceeding 25 percent of the amount stated on the return. And it may be assessed at any time if no return is filed or a false or fraudulent return is filed with intent to evade tax. The last one matters on this corridor for a specific reason: a person who believes they left New York and therefore stops filing entirely has no limitations period running in their favor at all.

Florida has no personal income tax, no statutory day count test and no residency-based state return, so nothing you do in Florida creates a Florida problem. What Florida produces instead is dated government records, which is precisely what the New York side of the file needs.

Per our Florida dossier, a new resident has 30 days to obtain a Florida driver license and 10 days to register a vehicle and carry Florida insurance. Voter registration has no deadline to establish residency, but it must be completed at least 29 days before an election to vote in it. Florida also offers a purpose-built domicile filing: a sworn, notarized Declaration of Domicile under Fla. Stat. section 222.17, recorded with the Clerk of the Circuit Court for roughly a 10 dollar fee, stating your prior domicile, your Florida county and the date Florida became home. New York’s own guidance says a certificate of domicile is not enough on its own, and that is fair. It is still a dated sworn statement, and dated sworn statements are what a clear and convincing record is built from.

The homestead exemption is the strongest Florida record and the slowest to obtain. You must own and occupy the property as of January 1 and file by March 1 for that year. It reduces assessed value by up to 50,000 dollars, and the Save Our Homes cap then limits annual growth in assessed value to the lesser of 3 percent or the change in CPI, which is 2.7 percent for 2026, with up to 500,000 dollars of accumulated benefit portable to a new Florida homestead within two years. The application itself requires a Florida license, voter registration and vehicle registration all showing the homestead address, plus proof you are not claiming a residency-based tax benefit in another state. That last requirement is why the New York STAR removal and the Florida homestead application should happen in the same month, not years apart.

Set this against moving from New York to New Jersey, and the convenience rule stops being a footnote and becomes the whole post. A New Jersey move takes you out of New York residency and New York City tax but leaves you squarely inside 20 NYCRR 132.18(a) if you still work for a New York employer, which is the fact pattern Zelinsky litigated twice. The Florida corridor has the same trailing wage problem with none of the offsetting credit, because Florida levies no income tax against which a credit could apply. New Jersey at least gives you a resident credit for tax paid to New York. Florida gives you nothing to credit, so New York’s sourced share sits there at full strength.

Set it against moving from California to Florida, and the structural difference is which test does the damage. California has no statutory residency test of this kind; it runs a facts-and-circumstances domicile and closer-connection analysis, which is why timing around a liquidity event is the dominant California risk. New York has both, and the statutory test is the one that converts a judgment call into arithmetic. A person who exits California successfully and applies the same playbook to a New York apartment is defending the wrong prong.

The honest summary of this corridor is that the Florida half is a checklist and the New York half is two separate cases you have to win. Deal with the abode, because it is the only prong you fully control and the disposal date is a live decision. Count days from January 1 on an any-part-of-a-day basis and know that 184 is the number. Build the domicile record anyway, because it is what stands between you and a full-year assessment if the abode stays. And remove the STAR exemption the same week you file for Florida homestead.

The Mobility Map records days and nights by state as they happen, which on this corridor is the difference between a defense and a reconstruction. The relevant number is New York days on an any-part-of-a-day basis across the full calendar year, and 184 is the line. That count is trivial to keep contemporaneously and very expensive to rebuild two years later against a state that will pull your toll records, card statements and flight bookings and compare them to whatever you produce.

Evidence Vault holds what a New York examiner asks for: the closing or lease-termination documents for the New York dwelling with their dates, the STAR removal, the Florida Declaration of Domicile with its recording date, the Florida driver license, vehicle registration and voter registration, the Florida homestead application, the Form IT-203 for the move year, and any employment agreement or written employer policy that supports a bona fide employer office outside New York.

AuditIQ surfaces the contradictions this corridor produces most often: a New York abode still maintained past the 10-month line, a New York day count approaching 184, an active STAR exemption after the claimed move, a New York employer with no documented employer-necessity basis for remote work, and a New York City address that never actually closed out.

ResidencyIQ organizes records and highlights potential exposure factors. It is not a law firm or an accounting firm and does not provide legal or tax advice; work with a qualified CPA or tax attorney on your own domicile, filings, and state exposure.

The two-part definition of a resident individual, the domicile rule in subparagraph (A) with its 548-day foreign safe harbor, and the statutory residency test in subparagraph (B) reaching an individual who "maintains a permanent place of abode in this state and spends in the aggregate more than one hundred eighty-three days of the taxable year in this state," are in N.Y. Tax Law section 605(b)(1): https://www.nysenate.gov/legislation/laws/TAX/605.

The "substantially all of the taxable year" gloss on the abode prong, the definition of a permanent place of abode as "a dwelling place of a permanent nature maintained by the taxpayer, whether or not owned by such taxpayer" and generally including a dwelling owned or leased by a spouse, and the any-part-of-a-calendar-day rule with its two exceptions for presence solely to board a plane, ship, train or bus for travel outside the state or while traveling through the state, are in 20 NYCRR 105.20, at subdivisions (a)(2), (e)(1) and (c): https://www.law.cornell.edu/regulations/new-york/20-NYCRR-105.20.

The Tax Department’s own statement of the test as maintaining a permanent place of abode for substantially all of the taxable year and spending "184 days or more in New York State," the clarification that any part of a day is a day and that you need not be present at the abode for the day to count, and the clear and convincing evidence standard for abandoning a New York domicile together with the caution that filing a certificate of domicile or registering to vote elsewhere is not enough, are on the department’s nonresident and part-year resident guidance: https://www.tax.ny.gov/pit/file/nonresident-faqs.htm.

Matter of Gaied v. New York State Tax Appeals Tribunal, 22 N.Y.3d 592, 6 N.E.3d 1113 (2014), decided February 18, 2014, is the source of the Staten Island multi-family building occupied by the taxpayer’s parents and the holding that there is no rational basis for treating mere maintenance of a dwelling as a permanent place of abode absent a residential interest in the property: https://www.courtlistener.com/opinion/5642663/gaied-v-new-york-state-tax-appeals-tribunal/.

Matter of Obus v. New York State Tax Appeals Tribunal, 206 A.D.3d 1511 (3d Dept 2022), decided June 30, 2022, 2022 NY Slip Op 04206, is the source of the Northville vacation home used roughly three weeks a year more than four hours from the taxpayer’s New York City job, the reversal of the Tribunal, and the requirement that the nature and duration of actual use be weighed: https://law.justia.com/cases/new-york/appellate-division-third-department/2022/533310.html. The Court of Appeals denied leave to appeal in March 2023, per Hodgson Russ: https://www.hodgsonruss.com/Noonans-Notes-Blog/obus-is-over-so-whats-next.

The change in the Nonresident Audit Guidelines from a period exceeding 11 months to a period exceeding 10 months for tax years beginning in 2022, the conclusion that the change makes it harder rather than easier for a taxpayer to avoid statutory residency, and the February 21 acquisition and November 3 sale examples, are from Hodgson Russ’s Noonan’s Notes: https://www.hodgsonruss.com/Noonans-Notes-Blog/new-audit-guidelines-in-new-york-a-change-to.

The workday allocation rule and the "of necessity, as distinguished from convenience" language of 20 NYCRR 132.18(a), the bona fide employer office framework requiring either the primary factor or at least 4 of 6 secondary factors and 3 of 10 other factors, and the specific secondary factors quoted here, are in TSB-M-06(5)I, Income Tax, May 15, 2006: https://tax.ny.gov/pdf/memos/income/m06_5i.pdf.

Matter of Zelinsky, DTA Nos. 830517 and 830681, decided by the New York State Tax Appeals Tribunal on May 9, 2025 for tax years 2019 and 2020, denying the taxpayers’ exception and rejecting COVID-19 executive orders and office unavailability as employer necessity, is summarized at https://www.currentfederaltaxdevelopments.com/blog/2025/5/22/navigating-new-yorks-convenience-rule-insights-from-matter-of-zelinsky-2025.

The three-year general assessment period, the six-year period where an individual omits from New York adjusted gross income an amount in excess of 25 percent of the amount stated on the return, and assessment at any time where no return is filed or a false or fraudulent return is filed with intent to evade tax, are in N.Y. Tax Law section 683, at subdivisions (a), (d) and (c)(1): https://www.nysenate.gov/legislation/laws/TAX/683.

The 43,187 returns moving from New York to Florida against 22,011 moving the other way, for a net outflow of 21,176 returns, are from the Department of Taxation and Finance’s migration page reporting IRS state-to-state data: https://www.tax.ny.gov/data/stats/taxfacts/migration.htm.

The New York audit aggressiveness and exit stickiness ratings, the enforcement method list including cell phone location records, EZ-Pass and toll records, card statements, medical, dental and veterinary records, airline records, the STAR cross-check, utility and cable bills, membership records and informant tips, the 12 to 24 month audit duration and the five-figure defense cost description from Hodgson Russ’s published nonresident audit guidance, the five primary domicile factors, Matter of Blatt, DTA No. 826504 (Determination, Feb. 2, 2017) with its 430,065 dollar canceled deficiency and the near and dear dog finding, Matter of Patrick, DTA Nos. 826838 and 826839 (Determination, June 15, 2017) with its 1,681,160 dollar canceled assessment and day counts, the 10.9 percent state top rate and 3.876 percent New York City top rate with capital gains taxed as ordinary income, the 2026 estate tax basic exclusion of 7,350,000 dollars and the cliff at roughly 105 percent of it, the Form IT-203 apportionment mechanics, the treatment of deferred compensation and stock options as continuing New York-source income, the STAR primary-residence requirement, and the Florida 30-day license, 10-day vehicle, 29-day voter and January 1 and March 1 homestead deadlines, Declaration of Domicile under Fla. Stat. section 222.17, 50,000 dollar homestead exemption, Save Our Homes cap of the lesser of 3 percent or CPI at 2.7 percent for 2026 and 500,000 dollar portability within two years, all come from ResidencyIQ’s own dossier research, with underlying citations on the New York and Florida residency guides.