New York State and New York City Residency Tests

New York State Tax Residency Rules

Whether an individual is considered a resident of New York State or City can have a material impact on the individual’s income tax liability. A New York State resident is generally subject to New York State income tax on his or her worldwide income, whereas a nonresident is subject to New York State income tax only on income from New York State sources. The difference is even more significant in New York City. A New York City resident is generally subject to New York City income tax on his or her worldwide income, while a nonresident is not subject to New York City income tax regardless of the source of his or her income. The cost of New York State and City tax residence status is even greater now that any federal deduction for state and city taxes has been substantially eliminated under the SALT cap.

New York State applies a multipart tax residency test based on whether you are domiciled in New York or are a statutory resident based on spending 184 days or more during the calendar year in New York State while maintaining a permanent place of abode (PPA) in New York.

Understanding Domicile vs. Residence

Generally, you are considered a New York State resident for income tax purposes if you are domiciled in the state. The terms domicile and residence are often used synonymously in casual conversation, but for New York State tax purposes, they have distinctly different legal meanings:

• Domicile: Your permanent and primary home — the place you intend to return to whenever you are away. You can have only one domicile at any given time.
• Residence: Any physical dwelling where you reside or maintain living quarters (houses, condos, apartments). An individual can have multiple residences across several states simultaneously.

Your New York domicile does not change until you demonstrate with clear and convincing evidence that you have abandoned your New York domicile and established a new domicile outside New York State. This requires demonstrating a primary shift in the focus of your life to the new location.

The Five Primary Domicile Factors

According to the New York State Department of Taxation and Finance Nonresident Audit Guidelines, tax auditors evaluate domicile using Five Primary Factors:

1. Home: The relative use, size, market value, and degree of maintenance of your New York residence compared to your out-of-state home. Auditors analyze where you truly "live."
2. Active Business Involvement: Your directorships, employment, active decision-making, and day-to-day management of business operations. (Note that in Matter of Knight, DTA No. 819485 (NYS Tax Appeals Tribunal 2006), the Tribunal held that "the presence of a suburban commuter at work or play in New York on most days, without more, does not create a New York domicile" and cancelled the State's tax assessment).
3. Time: The ratio of days spent in your new home state versus New York. Auditors examine overall lifestyle patterns rather than just raw day counts.
4. Near and Dear: The physical location of items of high sentimental or monetary value — family heirlooms, artwork, photo albums, pets, stamp/coin collections, and valuable personal property (often verified through insurance riders).
5. Family: Where your spouse and minor children live, and specifically where your minor children are enrolled in school.

Formalities ("Other Factors"): Steps such as changing your driver's license, registering to vote, moving bank accounts, updating vehicle registrations, or executing new estate planning documents are treated by auditors as relavent but not determinative. While necessary for consistency, these ministerial acts alone will not overcome negative primary factors.

Statutory Residency Test & The Permanent Place of Abode (PPA) Rules

New York's statutory residency rule is commonly called the "183-day rule," but the legal threshold is 184 days or more. Spending exactly 183 days in New York keeps you a nonresident; spending 184 or more days — combined with maintaining a permanent place of abode — triggers statutory resident status, subjecting your worldwide income to New York tax.

You are a statutory resident of New York State if:

• You maintain a permanent place of abode in New York State for substantially all of the taxable year; and
• You spend 184 days or more in New York State during the taxable year.

What Constitutes a Permanent Place of Abode (PPA)?

A permanent place of abode is a dwelling place of a permanent nature maintained by the taxpayer that is suitable for year-round residential use (20 NYCRR § 105.20). However, key statutory exemptions and court rulings refine this definition:

• The "Residential Interest" Test (Gaied & Obus): In the landmark Court of Appeals case Matter of Gaied v. NYS Tax Appeals Tribunal, 22 N.Y.3d 592 (2014), the court ruled that to qualify as a PPA, the taxpayer must have a residential interest in the property and actually use it as a residence. This was reaffirmed and expanded in Matter of Obus v. NYS Tax Appeals Tribunal, 206 A.D.3d 1511 (3d Dept. 2022), where the court held that a vacation home used for only three weeks a year (hours from the taxpayer's office) did not constitute a PPA because the taxpayer lacked a residential interest and was not part of the "target class of taxpayers intended to qualify as statutory residents."
• The 10-Month Rule ("Substantially All of the Year"): Under the Tax Department's Nonresident Audit Guidelines policy, "substantially all of the taxable year" is defined as a period exceeding 10 months. If you acquire a residence after March 1 or dispose of your residence before October 31 (and have access to no other New York dwelling during the year), you fail the 10-month threshold and cannot be taxed as a statutory resident for that tax year.
• Full-Time Undergraduate Students: Housing maintained by a full-time undergraduate student carrying at least 12 credit hours per semester for two semesters is statutorily exempt from being a PPA.
• Corporate & Shared Apartments: A corporate apartment shared among multiple executives or employees does not constitute a PPA for any single employee, provided corporate reservation logs confirm multi-occupant use without dedicated personal quarters.
• Uninhabitable / Vacation Camps: Structures lacking essential residential amenities (cooking, bathing, heating) or seasonal camps unsuitable for winter living do not qualify as PPAs.

Special Safe Harbor Exceptions for Domiciliaries

If your domicile remains New York, you can still qualify as a nonresident if you satisfy all three conditions of either Group A or Group B:

New York City Residency Rules

The rules for New York City residency mirror the New York State tests. You are a New York City resident if:

• Your domicile is located in one of the five NYC boroughs (Manhattan, Brooklyn, Queens, the Bronx, or Staten Island); or
• You maintain a permanent place of abode in NYC and spend 184 days or more in the City during the calendar year.

New York City residents are subject to NYC personal income tax on their worldwide income. Nonresidents of NYC owe no New York City income tax, regardless of where their income is earned.

Yonkers Tax Residency & Nonresident Earnings Tax

Yonkers is an independent city in Westchester County (not part of NYC). Yonkers imposes its own income tax rules:

• Yonkers Residents: Taxpayers domiciled in Yonkers, or maintaining a PPA and spending 184+ days in Yonkers, are subject to a Yonkers resident income tax surcharge on their NY State tax return.
• Yonkers Nonresidents: Nonresidents who earn wages or carry on a business/partnership in Yonkers are subject to the Yonkers Nonresident Earnings Tax.

New York State Estate Tax & The Infamous "Estate Tax Cliff"

In addition to personal income tax, New York is one of a minority of states that imposes a separate State Estate Tax (N.Y. Tax Law Article 26 § 952) with top tax rates reaching 16%. High-net-worth individuals and business owners must understand that state estate tax jurisdiction is governed strictly by legal domicile, not statutory residency:

• Governed Strictly by Domicile (Not the 183-Day Rule): Unlike New York personal income tax — which can be triggered by either domicile or the 183-day statutory residency test — New York estate tax liability is determined exclusively by legal Domicile. Spending 184 days in New York or maintaining a permanent place of abode does not, by itself, trigger NY estate tax if your legal domicile is elsewhere. However, physical time spent in New York remains a primary evidentiary factor used by auditors to challenge your claimed out-of-state domicile.
• Worldwide Scope for NY Domiciliaries: If you die as a New York domiciliary, New York State taxes your entire worldwide gross estate — including all cash, stocks, bonds, brokerage accounts, business interests, and intangible assets, regardless of where in the world they are located (excluding only real estate and tangible property physically situated in another state).
• Limited Scope for Non-Domiciliaries: If you successfully establish domicile outside New York (e.g., in Florida, Texas, or Wyoming, which impose 0% state estate tax), New York State estate tax applies only to real property (real estate) and tangible personal property physically located within New York State. Your intangible wealth (stocks, bank accounts, investment portfolios) escapes NY estate tax entirely.
• The Infamous NY Estate Tax "Cliff" (2026 Exclusion & Threshold): Unlike the federal estate tax exemption (which only taxes amounts exceeding the threshold), New York enforces a severe statutory cliff. For 2026, New York's Basic Exclusion Amount is $7,350,000. An estate valued at $7.35 million or less owes $0 in NY estate tax. However, if a deceased domiciliary's taxable estate exceeds 105% of the exclusion ($7,717,500), the state exemption is completely eliminated (0%), and New York taxes the entire estate starting from dollar one. This creates an immediate, multi-hundred-thousand-dollar tax penalty the moment an estate crosses $7,717,500.
• The 3-Year Gift Clawback Rule: Under N.Y. Tax Law § 954(a)(3), taxable gifts (under IRC § 2503) made by a NY domiciliary within 3 years prior to death are added back into the NY gross estate for calculation purposes (excluding real or tangible property outside NY, gifts made while a non-resident, or gifts made after January 1, 2032 when the clawback statutorily sunsets).
• The Cliff-Clawback Interaction Trap: A critical danger arises when a family makes gifts to reduce an estate below the $7.35 million exemption threshold. If the donor dies within 3 years, § 954(a)(3) claws those gifts back into the taxable estate. If the clawed-back gifts push the total gross estate past the 105% cliff threshold ($7,717,500), the exemption is completely wiped out, subjecting the entire estate to full 16% NY estate tax — leaving the estate in a far worse tax position than if no gifts had been made.
• No Spousal Portability in New York: Unlike federal estate tax rules (which allow a surviving spouse to inherit the unused portion of a deceased spouse's exemption), New York does not allow spousal portability. If the first spouse to die does not fully utilize their $7.35 million NY exemption through credit shelter or bypass trust planning, that $7.35 million state exclusion is permanently lost.

Counting Days in New York & Statutory Exceptions

Under 20 NYCRR § 105.20, any part of a day spent in New York counts as a full day ("a minute is a day"). You do not need to stay overnight or visit your home for the day to count. In Matter of Zanetti v. NYS Tax Appeals Tribunal, 128 A.D.3d 1131 (3d Dept. 2015), a taxpayer who spent 26 partial days flying in or out of NY on a private jet had all 26 partial days counted, triggering statutory residency.

Day Count Exceptions

• Travel Exception: Presence in NY is disregarded if it is solely to board outbound transit (plane, train, ship, bus) or passing through NY en route between two non-NY locations. Activity incidental to travel (buying gas, terminal meals, ATM use, meeting a limousine) does not forfeit the exception, provided the traveler does not engage in non-travel activities (e.g. business meetings or visiting friends). See NY Nonresident Audit Guidelines.
• Medical Exception: Time spent in New York solely for inpatient treatment at a New York medical facility is statutorily excluded from your day count. Outpatient visits, however, do count as NY days.

Burden of Proof & Audit Evidence Hierarchy

Under New York law, the taxpayer bears the burden of proving non-residency by clear and convincing evidence on domicile, and by precise daily documentation for statutory residency (Matter of Boniface, DTA No. 829018 (2021)).

Residency audits demonstrate a strict hierarchy of evidence where contemporaneous, objective proof defeats secondhand or reconstructed accounts:

• The Evidentiary Lesson of Matter of Knight (Why Weak Evidence Loses): In Matter of Knight (DTA No. 819485), the Tax Department attempted to establish New York residence using an investigator's report of a doorman's oral statements and a building manager's letter prepared years after the audit period. The Tax Appeals Tribunal rejected both items, assigning them "no weight" as unreliable hearsay. This illustrates a vital audit reality: secondhand statements, doorman recollections, or retroactively assembled summaries fall apart on audit.
• Domicile365 Hardware-Attested & Crypto-Signed Logs: In contrast to unreliable hearsay or retroactively created logs, Domicile365 automatically records your daily location using hardware-level device verification (Apple App Attest & Android Key Attestation) and generates cryptographically signed, tamper-evident logs. This proves to auditors that location data originated from a genuine, un-spoofed mobile device in real time and provides strong evidence to assist with your tax defense.
• Cellular Carrier Logs: Auditors frequently subpoena cellular call detail records (CDRs) and data/text tower pings (AT&T, Verizon, T-Mobile) to verify locations.
• EZ-Pass & Toll Records: A major audit focus in the tri-state area. Audit Trap: Avoid sharing EZ-Pass tags across family vehicles, as auditors assume the account owner was present in the vehicle. Each family member should maintain an independent EZ-Pass tag.
• Credit Card & ATM Records: Monthly statements are audited for physical location. Watch out for "false positive" NY transactions caused by recurring online subscriptions, auto-pays, or dry cleaners with cards on file.
• Electronic Calendars & Diaries: Outlook and Google calendars carry less evidentiary weight on audit because they can be retroactively altered, unless backed up by cryptographically verified location proof.

Conclusion & Audit Defense

Navigating New York State, New York City, and Yonkers tax residency requires proactive planning and continuous day tracking. Protect yourself against intrusive residency audits by downloading the Domicile365 App. Available on Apple iOS and Google Android. Start your free 60-day trial today.