NEW YORK STATUTORY RESIDENCY under Tax Law §605(b) is one of the most aggressively audited state tax provisions in the country. A taxpayer is a NY RESIDENT subject to tax on WORLDWIDE INCOME if either: (a) DOMICILED in NY (subjective intent + factual location of true permanent home); OR (b) STATUTORY RESIDENT - maintains a "PERMANENT PLACE OF ABODE" (PPA) in NY for SUBSTANTIALLY ALL of the taxable year AND is physically present in NY for MORE THAN 183 DAYS. CORE STATUTORY TEST §605(b)(1)(B): nonresident becomes statutory resident if BOTH prongs satisfied. PRONG 1 - PERMANENT PLACE OF ABODE: dwelling place permanently maintained by taxpayer in NY suitable for year-round residence. NY Audit Division position: "substantially all" of year = MORE THAN 10 MONTHS / 11 months under 20 NYCRR §105.20(e)(1). PRONG 2 - 183-DAY TEST: physically present in NY for any part of MORE THAN 183 DAYS (i.e., 184 or more). ANY PART OF A DAY counts as a NY day (5-minute layover, dinner meeting) with limited exceptions for medical and through-state transit days. GAIED v. NYS TAX APPEALS TRIBUNAL, 22 NY3d 592 (2014) - NY Court of Appeals added critical THIRD prong: taxpayer must have a "RESIDENTIAL INTEREST" in the property; mere ownership without subjective use as taxpayer's own residence does NOT establish PPA. Property maintained for parents/in-laws/separate occupant insufficient. OBUS v. NYS TAX APPEALS TRIBUNAL, 206 AD3d 1511 (3d Dept 2022) - extended Gaied to VACATION HOMES; held NJ resident's NY vacation home used 2-3 weeks/year NOT a PPA despite over 183 NY days for work. Obus emphasized SUBJECTIVE USE not physical attributes. PRACTICAL RAMIFICATIONS: HNW individuals moving FROM NY (especially to FL/TX/no-tax states) face intense residency audits; statutory residency the dominant avenue for NY to keep prior residents on the tax rolls. 14-DAY DE MINIMIS RULE TSB-M-12(5)I - separate employer-withholding rule: NY employer not required to withhold for nonresident employee with 14 OR FEWER NY workdays per year. NOT an exemption from individual tax liability - only an employer withholding safe harbor. DOMICILE ANALYSIS - 5 primary factors per Audit Division guide: home, business activity location, time spent, near-and-dear items, family connections. Burden of proof on taxpayer claiming change of domicile from NY is HEAVY ("clear and convincing"). FOREIGN PRESENCE EXCEPTION §605(b)(1)(A)(ii) "548-day rule": NY domiciliary outside US for at least 450 days in any 548-day period, present in NY no more than 90 days, and spouse and minor children also present in NY no more than 90 days, treated as NONRESIDENT for that period.
Two paths to NY residency: (1) DOMICILE - subjective + factual permanent home in NY; OR (2) STATUTORY RESIDENT - maintain PPA in NY for substantially all of year (10-11+ months) AND physically present 184+ days.
PPA after Gaied (2014): Property must be used as taxpayer's own RESIDENCE, not merely owned/available. Owning a property where parents/in-laws/separate occupant lives = NOT a PPA. Residential interest required.
PPA after Obus (2022): Vacation home used 2-3 weeks/year is NOT a PPA. Subjective use matters, not just physical attributes (year-round livability, owner access).
183-day test: ANY part of a day in NY = full NY day (subject to medical and transit exceptions). 184 or more = "more than 183."
Audit reality: NY runs aggressive residency audits especially on individuals moving to FL. Burden of proof on taxpayer; contemporaneous documentation essential (calendars, cell records, credit card statements, EZ-Pass).
| §605(b) Element | Detail |
|---|---|
| §605(b)(1)(A) - Domicile path | Resident individual = domiciled in NY State; alternative path to residency |
| §605(b)(1)(A)(ii) - 548-day foreign exception | NY domiciliary nonresident if outside US 450+ days of any 548-day period AND NY presence under 90 days AND spouse/minor children NY presence under 90 days |
| §605(b)(1)(B) - Statutory resident path | Resident individual = maintains PPA in NY State + physically present in NY MORE THAN 183 days of taxable year |
| "Permanent place of abode" 20 NYCRR §105.20(e)(1) | Dwelling place permanently maintained by taxpayer suitable for year-round use; living quarters with sleeping/cooking/bathroom facilities; not under construction |
| "Substantially all of the year" | Audit Division position: MORE THAN 10 MONTHS / 11 months; PPA must be maintained for substantial portion of year, not whole year required |
| "More than 183 days" | 184 or more days physically present in NY; counts any part of day |
| Day-counting rules | Any portion of day = full NY day; exceptions for medical days (under treatment in NY hospital), days entirely in transit through NY (e.g., layover at JFK without leaving airport) |
| Statutory resident applies even though domiciled elsewhere | Person can be FL domiciliary AND NY statutory resident simultaneously if PPA + 183-day test met; subject to NY resident tax |
| Effect of residency | Subject to NY tax on WORLDWIDE income; credit available §620 for taxes paid to other states |
| Part-year residency | Move into or out of NY mid-year - resident for portion of year, nonresident for other portion; file IT-203 part-year resident form |
| Factor | Detail |
|---|---|
| HOME | Locations of homes owned or rented; size, value, use of each; primary residence indicators; relative spending of time at each |
| ACTIVE BUSINESS | Location of taxpayer's active business involvement; employment location; ownership of businesses; daily work routine location |
| TIME | Days spent in NY vs other states; calendar entries; cell phone location; credit card geography; EZ-Pass records |
| NEAR-AND-DEAR ITEMS | Location of items of significant personal value - family photographs, heirlooms, expensive art, important documents; "items you would not want to lose in a fire" |
| FAMILY CONNECTIONS | Where spouse and minor children live; school enrollment; pet location; church/synagogue membership; social club memberships |
| Secondary factors | Voter registration; driver's license; vehicle registration; bank accounts; healthcare providers; safe deposit boxes; tax return filing addresses; will/estate planning provisions |
| Burden of proof on change of domicile | Person claiming change of domicile FROM NY must prove by CLEAR AND CONVINCING evidence (high standard); presumption of continued NY domicile |
| Intent matters | Subjective intent to make new state permanent home; combined with objective acts showing same; "leaving and landing" both required |
| Snowbird trap | FL winter home + NY summer home + still working in NY = often still NY domicile; declaration of FL residency insufficient without operational change |
| Audit duration | NY residency audits often span 2-4 years; common to receive Notice of Audit for multiple years simultaneously |
| Case | Holding |
|---|---|
| Matter of Gaied v. NYS Tax Appeals Trib., 22 NY3d 592 (2014) | NY Court of Appeals: PPA requires that taxpayer have a "residential interest" in the property; mere ownership and availability insufficient; the property must serve as the taxpayer's own residence. Gaied owned 3-unit Staten Island building; one unit occupied by his elderly parents whom he visited; held NOT a PPA for Gaied (NJ resident) |
| Matter of Obus v. NY Tax Appeals Trib., 206 AD3d 1511 (3d Dept 2022) | Appellate Division applied Gaied to vacation home; NJ resident owned vacation home in upstate NY used 2-3 weeks/year for personal vacation; NY tenant rented attached unit year-round; held NOT a PPA despite over 183 NY days for work (Obus worked in NYC). Subjective use, not physical attributes or access, determines PPA status |
| Matter of Evans, DTA No. 829846 (NY Tax Trib. 2023) | Applied Gaied to determine taxpayer's use of NY apartment; fact-specific outcome |
| Matter of Barker, DTA No. 822324 (NY Tax Trib. 2011) | Pre-Gaied case using narrower physical-attribute test; effectively superseded by Gaied analysis |
| Matter of Pollack, DTA No. 826852 (NY Tax Trib. 2017) | PPA analysis for HNW taxpayer; documentation-intensive |
| Matter of Klein, DTA No. 825759 (NY Tax Trib. 2015) | Statutory residency upheld where PPA used as taxpayer's own residence |
| Renzi-style facts | Common audit pattern - NYC apartment retained by FL domiciliary for occasional NY business trips; audit challenges whether apartment is true PPA |
| Audit Division position post-Gaied | Aggressive in arguing factual residential interest exists; emphasizes apartment usage frequency, personal effects on premises, mail receipt |
| 20 NYCRR §105.20(e)(1) regulation | Defines PPA - dwelling permanently maintained, with sleeping/cooking/bathroom; suitable for year-round residence; not under construction |
| Strategic implication | Properties used by elderly parents, adult children, separate tenants, or only briefly for vacation may NOT be PPAs under Gaied/Obus; documentation of subjective use critical |
| Day-Count Rule | Detail |
|---|---|
| Basic rule | Any part of a day physically present in NY = full NY day for 183-day test |
| 5-minute layover | Counts as NY day - even brief border-crossing or layover at JFK/LGA where taxpayer leaves airport |
| Through-state transit exception | Days entirely spent in transit through NY without leaving the means of transit (e.g., flight layover without exiting airport, drive through NY without stopping for substantive purpose) generally excluded |
| Medical days exception | Days when taxpayer present in NY exclusively for receiving medical treatment as inpatient excluded; outpatient ambiguous |
| Dinner meeting / brief work | Counts as NY day even if only few hours; physical presence threshold extremely low |
| Cell phone evidence | NY Department uses cell tower records, EZ-Pass, credit cards, location-based app data to reconstruct days; taxpayer's calendar must match electronic records |
| Documentation burden | Taxpayer must affirmatively prove non-NY days; absence of evidence works against taxpayer |
| EZ-Pass paradox | EZ-Pass records can establish day in NY or outside NY; using EZ-Pass through NY to NJ may inadvertently document NY day for tollbooth crossing |
| Calendar manipulation risk | Reconstructed calendars without supporting electronic evidence treated skeptically; audit often refuses to accept |
| 184-day threshold | 183 days = NOT statutory resident; 184+ = statutory resident if PPA also satisfied |
| Margin of safety | Practitioners advise clients to stay well below 184 days (target 170-175) to provide margin for inadvertent days or calendar disputes |
| 548-Day Rule Element | Detail |
|---|---|
| Authority | Tax Law §605(b)(1)(A)(ii) |
| Concept | NY domiciliary working abroad for extended period treated as NONRESIDENT for that period |
| Test 1 - 548 days outside US | Taxpayer outside US for at least 450 days during any 548-consecutive-day period |
| Test 2 - NY presence under 90 days | Taxpayer present in NY for no more than 90 days during the 548-day period |
| Test 3 - Family NY presence under 90 days | Taxpayer's spouse and minor children present in NY for no more than 90 days during the 548-day period |
| Effect | Taxpayer treated as nonresident for the portion of 548-day period; income earned abroad not subject to NY resident tax |
| Use case | NY domiciliary on extended foreign assignment; expat working in EU, Asia, Middle East |
| Family condition | Family member compliance critical; if spouse remained in NY beyond 90 days during 548-day period, exception fails for taxpayer |
| Coordination with federal §911 | FEIE bona fide residence or physical presence tests federally; 548-day rule independent state mechanic; one can qualify federally but fail state test or vice versa |
| NY source income still taxed | Even with 548-day exception, NY-source income (NY-located property income, NY business income) remains taxable as nonresident |
| 14-Day Rule Element | Detail |
|---|---|
| Authority | TSB-M-12(5)I (NY Department of Taxation and Finance memorandum) |
| Scope | EMPLOYER WITHHOLDING obligation, not individual tax liability |
| Threshold | NY employer not required to withhold NY income tax for nonresident employee who works in NY 14 OR FEWER days during calendar year |
| Conditions | (1) Nonresident employee; (2) NY work limited to 14 or fewer days; (3) NY-source compensation under threshold |
| Not an individual exemption | Individual nonresident with 14 or fewer NY days STILL technically NY-source income (de minimis amount); not required to file NY return if NY income below filing threshold |
| Filing threshold | Nonresident filing threshold based on NY source income; if income below threshold, no filing required regardless |
| Application | Sales reps making 1-2 NY visits per year; consultants attending NY meetings; conferences/training in NY |
| Tracked by day-count | Same any-part-of-day rule applies |
| Employer practical use | Out-of-state employers sending employees to NY for limited days can avoid withholding registration if employee NY days under 15 |
| Recordkeeping | Employer should maintain log of employee NY days to demonstrate compliance with 14-day safe harbor |
Facts: Robert is a 60-year-old Wall Street executive. Throughout 2025, NY domicile - owns Manhattan co-op, NJ vacation home, daughter in NYC school, etc. January 2026, Robert decides to move to Florida.
2026 actions:
- Closes on FL home purchase Feb 2026
- Files FL homestead exemption March 2026
- Obtains FL driver's license; registers cars in FL
- Changes voter registration to FL
- Updates will to designate FL property as principal residence
- Keeps Manhattan co-op (used for occasional NY business trips)
- Daughter graduates HS June 2026, attends college outside NY starting August
- Wife relocates to FL full-time in February
- Robert continues working for NYC employer 3 days/week through May, then transitions to consulting role with NY clients
2026 day-count:
- Through May 2026 (commuting): 75 NY days
- June-December 2026: 60 NY days (consulting visits, social events, Manhattan co-op use)
- Total 2026 NY days: 135
Domicile analysis for 2026:
Robert's domicile changed from NY to FL during 2026:
- Home: FL home purchased and used as primary residence post-move
- Active business: shifted from NYC employment to consulting; reduced NY presence
- Time: 135 days in NY out of 365 = under 50%; FL more time
- Near-and-dear items: presumed moved to FL home (must document)
- Family: wife and minor child relocated; daughter graduated/left NY
If Robert documents the move with clear evidence (closing statements, school records, voter registration timing, will update), domicile shift to FL likely sustainable for the post-move period.
Part-year resident filing IT-203 - resident for Jan 1 through approximate move date (say Feb 28); nonresident for rest of year.
Statutory resident analysis for 2026 (post-move period):
Robert is FL domiciliary post-move; could still be NY STATUTORY RESIDENT if both prongs met:
(1) PPA: Manhattan co-op - Robert continues to maintain and use it. Under Gaied/Obus, "residential interest" test - if Robert uses the co-op for personal residence purposes (sleeps there, has personal effects, mail), PPA likely SATISFIED.
(2) 183-day test: 135 NY days < 184; FAILED.
Result: NOT statutory resident for 2026 because 183-day test not met. But CLOSE call - inadvertent extra NY days could push over. Recommend client target under 175 NY days for margin.
Where audit goes wrong:
NY audit will challenge:
(a) When did domicile actually change? Was move "real" or just paper move with NY life maintained?
(b) NY day count - audit will reconstruct using cell records, EZ-Pass, credit cards; expect 10-20% upward adjustment from taxpayer's calendar
(c) PPA status - audit will argue Manhattan co-op fully a PPA; client must show subjective use
(d) Family - if wife/child still in NY beyond move date, weakens domicile argument
2027+ planning:
Robert should target NY days under 175 to provide margin under 183-day statutory residency test. If under 184 NY days each year + true FL domicile, no NY worldwide tax; only NY-source income taxed (NY-located property, NY-source consulting).
If Robert kept NY apartment but had elderly mother live there:
Under Gaied (2014) - apartment used by mother, with Robert occasionally visiting, would NOT establish residential interest. Robert could potentially be over 184 NY days for work yet still NOT statutory resident if PPA prong fails. Document: apartment leased to/used by mother as primary residence; Robert as visitor not resident.
Florida homestead, FL driver's license, FL voter registration alone do NOT establish domicile change. Domicile requires "leaving and landing" - actual factual relocation plus subjective intent. Practitioner advising on paper move without lifestyle relocation invites audit failure.
Audits use cell records, EZ-Pass, credit cards, calendar entries, app location data. Practitioner relying on client's recall or unsupported calendar fails on audit. Document at the time via contemporaneous calendar synced with electronic records.
Gaied requires "residential interest" - subjective use as taxpayer's own residence. Practitioner reading Gaied as "any property" rule misapplies; the property in dispute must be the TAXPAYER'S own residence, not separately occupied or merely owned. Obus extended to vacation homes used briefly.
§605(b) 183-day test is CALENDAR DAYS (any part of day present), not working days. Practitioner confusing with §132.18 wage allocation (working days) misapplies test.
Days entirely in transit through NY without leaving means of transit excluded. Practitioner counting brief layovers misallocates upward; document layover within terminal vs leaving airport.
Days in NY for medical treatment as inpatient excluded. Outpatient unclear. Document hospitalization records for exclusion claim.
"More than 183 days" means 184+ days. Practitioner advising client "180 days is safe" should clarify - 183 days NOT statutory resident; 184+ IS. Margin recommendation 170-175 to allow for inadvertent days.
Apartment used by parents, adult children, separate tenants - under Gaied, taxpayer must establish residential interest. Practitioner not analyzing actual use over ownership/access misclassifies.
20 NYCRR §105.20(e)(1) - property under construction not suitable for habitation is not PPA. Practitioner including renovation-period property in PPA analysis miscounts.
Foreign presence exception requires spouse AND minor children also under 90 NY days. Practitioner advising on 548-day rule without family compliance check misses fatal failure.
FL winter + NY summer + continued NY work = often still NY domicile. Snowbirds claiming FL residency while retaining NY business and home face high audit failure rates. Genuine relocation required.
Burden of proof on TAXPAYER for change of domicile from NY - CLEAR AND CONVINCING evidence. Practitioner approaching audit with "we changed it on paper" rather than detailed evidentiary presentation fails.
Move TO or FROM NY mid-year - file IT-203 as part-year resident. Allocate income by residency period; worldwide income during resident portion, NY-source during nonresident portion. Practitioner filing pure nonresident or pure resident misallocates.
NY common to audit 3-4 years simultaneously when residency change. Practitioner not advising client to document continuously from year of move forward leaves later years vulnerable to relitigating same issues.
FL-domiciled individual STILL subject to NY statutory residency if PPA + 184+ NY days. Practitioner not testing statutory residency separately after domicile change misses parallel exposure.
TSB-M-12(5)I 14-day rule is EMPLOYER withholding, not individual tax exemption. Individual still has NY source income for NY workdays even if fewer than 15. Practitioner conflating withholding safe harbor with tax exemption misapplies.
Spouses can have different domiciles. Practitioner assuming joint domicile shift may overlook that one spouse remained NY-domiciled while other moved to FL, creating mixed residency for joint return.
Primary authority: NY Tax Law §605 (Resident, nonresident, and part-year resident defined). §605(a) (resident defined). §605(a)(1) (domiciled in NY). §605(b)(1)(A) (Resident individual - domicile path). §605(b)(1)(A)(ii) (548-day foreign presence exception). §605(b)(1)(B) (statutory resident - PPA + 183 days). §605(b)(2) (nonresident defined). §605(b)(3) (part-year resident). §612 (NY adjusted gross income of residents). §620 (resident credit for income taxes paid to other states). §631 (NY source income of nonresident). §632 (apportionment authority). 4 U.S.C. §114 (federal Source Tax Act - nonresident pension preemption). 4 U.S.C. §111 (federal employment compensation). 20 NYCRR Part 105 (resident and nonresident defined). 20 NYCRR §105.20 (domicile and statutory residency rules). 20 NYCRR §105.20(d) (statutory resident). 20 NYCRR §105.20(d)(2) (definition of permanent place of abode). 20 NYCRR §105.20(e)(1) (PPA must be permanently maintained, suitable for year-round habitation, sleeping/cooking/bathroom facilities). 20 NYCRR §105.20(c)(1) (domicile factors). 20 NYCRR §105.20(c)(2) (change of domicile - clear and convincing evidence). 20 NYCRR §105.21 (day-counting rules). NY Audit Division Nonresident Audit Guidelines (2014 edition with subsequent updates - 5 primary domicile factors: home, active business, time, near-and-dear items, family connections). TSB-M-12(5)I (14-day employer withholding de minimis rule). TSB-M-06(5)I (convenience of employer rule and bona fide employer office test). TSB-M-08(7)I (statutory residency clarifications). TSB-A-08(1)I (advisory opinions on PPA). Matter of Gaied v. NYS Tax Appeals Tribunal, 22 NY3d 592 (2014) (residential interest required for PPA). Matter of Obus v. NYS Tax Appeals Tribunal, 206 AD3d 1511 (3d Dept 2022) (vacation home not PPA). Matter of Barker, DTA No. 822324 (NY Tax Trib. 2011) (pre-Gaied PPA test - superseded). Matter of Klein, DTA No. 825759 (NY Tax Trib. 2015). Matter of Pollack, DTA No. 826852 (NY Tax Trib. 2017). Matter of Evans, DTA No. 829846 (NY Tax Trib. 2023). Zelinsky v. NYS Tax Appeals Tribunal, 1 NY3d 85 (2003) (convenience rule constitutional - separate issue). Comptroller v. Wynne, 575 US 542 (2015) (resident state credit). Form IT-201 (NY Resident Income Tax Return). Form IT-203 (NY Nonresident and Part-Year Resident Income Tax Return). Form IT-203-A (Business Allocation Schedule for nonresidents and part-year residents). Form IT-203-B (Wage Allocation Schedule for nonresidents and part-year residents). Form IT-112-R (Credit for taxes paid to other states - residents). Form IT-360.1 (NY City part-year residency).