New York runs some of the most aggressive residency audits in the country, and the New York 183 day rule is the tripwire at the centre of them. If you keep a home in New York and spend more than 183 days in the state, you can be taxed as a full-year resident on your worldwide income - even if you moved away, and even if your home is somewhere else entirely. This guide explains the 184-day line, the "permanent place of abode" test, why any part of a day counts, and how to keep a record that survives an audit.
The New York 183 day rule: two conditions, both required
New York calls this statutory residency, and it is separate from being domiciled in the state. You are a statutory resident for a tax year if both of these are true:
- You maintain a permanent place of abode in New York for substantially all of the year, and
- You spend more than 183 days of the tax year in New York - meaning 184 days or more.
The 183 is a threshold you must exceed, not hit. Spend exactly 183 days or fewer in the state and you pass the day test as a nonresident. Cross to 184 while keeping a permanent home there and you are a statutory resident - taxed on all of your income as if you lived in New York the whole year, regardless of where you actually earned it.
What "permanent place of abode" means
A permanent place of abode is a dwelling you maintain that is suitable for year-round living - an apartment, a house, a condo. It does not have to be owned by you, and you do not have to sleep there every night for it to count. Structures that are not suitable for year-round use, or that lack normal dwelling facilities such as cooking and bathing (for example barracks), are not a permanent place of abode. But a physically suitable home is no longer enough on its own.
Recent case law has tightened this. In Matter of Obus (New York Appellate Division, Third Department, 2022), the court held that owning a New York vacation home suitable for year-round use is not automatically a permanent place of abode. Building on the earlier Gaied standard, the test now turns on whether you have a genuine residential interest in the dwelling - whether you actually use it as a residence, not just whether the property physically qualifies. A vacation home used only a few weeks a year, with no personal effects kept there, is not a permanent place of abode. This remains the governing standard for 2026 audits.
- A home you own but rent out to others generally does not count while a real tenant occupies it.
- A place you keep "for substantially all of the year" is the target, not one held for a few weeks.
- Auditors look closely at pieds-a-terre, family apartments and homes kept "just in case" after a supposed move out of state - and, since Obus, at how much you actually live in a place you own.
This is why people who believe they left New York still get caught: the day count is only half the test. Keep a New York home you genuinely use for more than 10 months and cross 184 days, and the label attaches.
Any part of a day counts as a New York day
The counting rule is where most audits are won and lost. In New York, any part of a day spent in the state generally counts as a full New York day. You do not need to be at your abode, and you do not need to stay overnight.
A stark example: arrive in New York on January 1 at 11 pm and leave on January 2 at 1 am, and you were physically present for roughly two hours - but that is two New York days, because part of each calendar day was spent in the state. You need not even be at your abode for a day to count. Arrival and departure days both count, and a quick stopover or a dinner in Manhattan is a full day.
The narrow exceptions - and the burden of proof
New York recognises only a few situations where a day in the state is not counted:
- Travel solely in transit. A day spent only passing through New York to board a plane, train, ship or bus to a destination outside the state is generally disregarded - for example connecting through JFK or driving through on I-95. But any stop to dine, shop or meet someone voids the exception, and the whole day counts.
- Inpatient hospital treatment. Days you spend receiving inpatient care at a hospital in New York are generally not counted.
Everything else counts. And here is the part that catches people: the burden of proof is on you, the taxpayer. In a residency audit, any day you cannot clearly document as spent outside New York is typically counted as a New York day by the auditor. An undocumented gap is not neutral - it works against you.
New York City residency is determined in a similar way for city tax, and remember that domicile is a separate, additional route to residency: even under 184 days, you can be a New York resident if the state remains your true, permanent home.
Track your New York days in the app
Surviving a New York audit means accounting for every day of the year before anyone asks. Tax Residency Tracker builds that record automatically:
- Per-US-state thresholds - the app carries a bundled dataset of state statutory thresholds, so it shows your current New York day count and the days you have left before you cross the 184-day line into statutory residency, the same way it tracks Hawaii, DC and every other state. (States with no bright-line day test are flagged as facts-and-circumstances.)
- Threshold alert notifications - local warnings fire before you cross a line, with a warning ladder as your remaining New York days run down, so a "quick visit" never quietly pushes you to 184 without you noticing. An optional discreet mode hides the details on your lock screen.
- Automatic GPS detection spots when you enter and leave New York using background border and US-state detection, and creates a dated stay - even when the app is closed - so your count doesn't depend on you remembering to log a day trip. You can also add or edit stays by hand.
- A contemporaneous location history - an automatic, dated record of where you were is the kind of real-time evidence auditors trust more than a spreadsheet built after the fact.
- Planned-stays preview - add future trips and see the projected New York total before you book, so you can decide whether a December visit is worth the day it costs you.
- Attach proof to each stay - add camera photos, library photos, PDFs and scanned documents such as boarding passes and hotel receipts directly to a stay, so every day outside New York is backed by evidence when the burden of proof falls on you.
- CSV export hands your accountant or a New York auditor a clean, dated record of your stays and daily country and US-state records - with the supporting documents attached - for a tax year, a quick range or a custom period, instead of a scramble through old emails.
Everything is processed on your device and works fully offline, with optional iCloud sync through your own private account, so your movements stay private while your records stay audit-ready. Tax Residency Tracker is iPhone-only; it is free to download, and the day-counting model picker and export are premium.
Frequently asked questions
Is it 183 or 184 days in New York?
The law says "more than 183 days," which means 184 or more days in New York makes you a statutory resident (if you also keep a permanent place of abode). Exactly 183 days or fewer keeps you a nonresident for the day test. Treat 183 as a ceiling to stay under, with a comfortable margin.
Do I count a day if I was only in New York for a couple of hours?
Yes. Any part of a day generally counts as a full New York day, so a short visit, a stopover or a dinner in the city all count. The only common exceptions are days spent purely in transit to somewhere outside New York and days receiving inpatient hospital treatment.
I moved out of New York - can I still be taxed as a resident?
Possibly. If you keep a permanent home in New York and still spend 184 or more days there, you can be a statutory resident even after moving your domicile away. And domicile is a separate test entirely - if New York remains your true permanent home, you can be a resident on far fewer days.
What happens to days I can't document in an audit?
They generally count against you. Because the burden of proof is on the taxpayer, any undocumented or unidentified day is typically treated as a New York day by the auditor. A contemporaneous, dated record with proof attached is your best defence.
Next, compare with California's 183-day rule and residency test, learn how to track state residency for taxes, see how to prove tax residency for an audit, or browse all tax-residency guides.