The NY Residency Questions That Actually Matter

New York does not take non-residency claims at face value. The state runs the most aggressive residency audit program in the country, and for taxpayers with the right income profile, a non-residency claim on a return is a working hypothesis the state will test against evidence. The question is whether the evidence holds up.

Most of the residency questions that matter at audit are not the ones people worry about. The ones people worry about are often answered before the audit begins. The ones that actually move outcomes are smaller, more specific, and usually unknown to the taxpayer until the auditor asks.

Two tests, not one

There are two separate ways New York finds you to be a resident. The first is statutory residency. The second is domicile. They operate independently.

Statutory residency is a mechanical test. If you maintain a permanent place of abode in New York State for substantially all of the tax year and you spend more than 183 days in the state during that year, you are a statutory resident. That is it. Neither test element is up for interpretation once the facts are set. The days are the days. The abode is the abode. You can be domiciled in Florida, own a ski cabin in Vermont, and still be a statutory New York resident if you kept an apartment in Manhattan and spent 184 days in the state.

Domicile is a different animal. Domicile is a multi-factor analysis of where your life is centered. Home, family, business, social ties, and where you intend to return. The state looks at where you spend your time, where your family lives, where your doctor is, where your primary business is located, where your accounts are, where your valuable possessions are, and whether you have made the kind of lifestyle changes that indicate a genuine move versus a paper move.

You can lose on statutory residency without touching domicile, and you can lose on domicile even if you never crossed 183 days. This is why the questions that matter vary depending on which test the state is building against you.

The 184-day question is more technical than people realize

Day counting under the statutory test has specific rules. Any part of a day counts as a day, including arrival and departure days. Commuting days typically count. Medical exceptions exist for days in the state for hospital treatment. Travel-through-NY days (flight connections through JFK, for example) generally do not count.

What this means in practice: a taxpayer claiming 178 days who leaves LGA on a flight the morning of day 179 has spent day 179 in New York. A taxpayer who drives through on a Tuesday en route to Massachusetts and back through on a Thursday has spent two days in the state, not zero. An auditor reconstructing day counts from EZ-Pass records, credit card transactions, and cell phone location data is going to find days the taxpayer forgot about.

The 184-day threshold is not a buffer. Once you cross it, the statutory test is satisfied regardless of any other facts. For high-income taxpayers with genuine non-residency claims, tracking days with a real system, not a memory, is the baseline. We see taxpayers arrive at audit with 175 days in their head and 192 days in the state’s reconstruction. They lose.

The permanent place of abode question got more favorable in 2022

The second half of the statutory test is the permanent place of abode. For decades, New York treated almost any residential property you owned or rented in the state as a permanent place of abode. A vacation cabin, a seasonal apartment, a pied-a-terre you visited four times a year — all were treated as permanent places of abode, which meant crossing the 184-day threshold triggered statutory residency.

The 2022 Obus decision changed the analysis. The Appellate Division, reversing the Tax Appeals Tribunal, held that a vacation home the taxpayer used rarely and not as a residence does not qualify as a permanent place of abode, even though he legally owned it. The analysis now turns on how the property is actually used, not just ownership.

Separately, in the same year, the state’s own audit guidelines moved in the other direction on the “substantially all of the year” element: a property now counts as maintained for substantially all of the year if it is available for more than 10 months, where the prior guideline was 11. That change favors the state, not the taxpayer; a mid-year sale or acquisition that used to break statutory residency at the 11-month line can now fail to break it.

The practical effect: a New York vacation home that a taxpayer visits three weekends a year is now defensible as not a permanent place of abode, where under the old standard it was treated as one. For high-income taxpayers who acquired Hamptons or Catskills property during non-residency, this is material.

The domicile questions the state actually asks

Domicile audits are paper-intensive and specific. The questions New York auditors ask are not usually “where do you live?” They are narrower.

Where is your primary doctor? Not your doctor in New York, but your primary doctor, the one you see for ordinary care. Where are your family’s doctors? Where do your children go to school? Where is your synagogue or church or yoga studio? Where is your car registered? Where is your driver’s license issued? Where are your valuable possessions — the jewelry, the art, the family photos?

Where do you vote? Where do you file your homestead exemption? Where is your will executed and probated? Where are your safe deposit boxes? Where are your boats or planes registered?

Where does your family live? Specifically: where does your spouse live, where do your minor children live, where do your adult children treat as the family home?

These questions produce paper trails. EZ-Pass records show where you drive. Credit card statements show where you buy groceries. Cell phone location data shows where you sleep. A taxpayer claiming Florida domicile whose credit card statements show 80 percent of restaurant spending in Manhattan has a problem. A taxpayer whose cell phone pings a Westchester tower every weeknight has a problem. A taxpayer whose doctor and dentist and accountant all have New York addresses has a problem.

The answers that win domicile audits are answers that predate the audit. A taxpayer who moved to Florida in 2024 and then changed doctors, changed voter registration, changed the homestead exemption, moved the safe deposit box, registered the cars in Florida, and updated the estate documents has a defensible position. A taxpayer who moved in 2024 and did not do any of that has a paper trail that does not match the return.

What a defensible position looks like

A defensible non-residency position is a collection of small decisions made early. The day counting has to be real. The abode question has to be analyzed honestly, including how the New York property is actually used. The domicile change has to be paper-documented across medical, financial, legal, and social categories. The timing has to be consistent. The taxpayer’s actual pattern of life has to match the claimed residency.

None of this is impossible. We work with high-income taxpayers who genuinely moved and whose audit files are clean enough that the state does not pursue. We also work with taxpayers who genuinely did not move, did not want to move, but want to file as if they did. Those cases do not end well.

The honest read is this: if you would rather live in Manhattan and you do live in Manhattan, file as a New York resident. If you genuinely moved, file as a non-resident and make sure the paper matches. The in-between cases are where audit time gets expensive.

The questions that decide these cases are not “are you a New York resident?” They are the ones the auditor asks in month eight of a document production. By then, you have already either won or lost.

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This article is for informational purposes only and does not constitute tax advice. The topics discussed depend on specific facts and current law, both of which change. A proper analysis of your situation requires professional review. Contact us to discuss whether this applies to your business.