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If you spend part of the year outside New York, the state may still treat you as a full-year resident and tax all of your income. A New York residency audit is one of the most document-heavy examinations the New York State Department of Taxation and Finance conducts, and these audits focus on people with higher incomes, more than one home, or a recent move out of state.
This guide explains the two residency tests, what tends to start an audit, how the state counts days, and the records that make the difference.
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The two New York residency tests
New York applies two separate tests. Meeting either one makes you a resident for the entire year. New York City uses the same two tests for its own resident income tax, so a person can be a city resident in addition to a state resident.
1. Domicile
Your domicile is your true, permanent home: the place you intend to return to whenever you are away. You can have only one domicile at a time, and it does not change just because you buy a house somewhere else. To change it, you must actually move and show that you intend to stay in the new place. If you claim to have left New York, the burden is on you to prove the change with clear and convincing evidence.
Auditors look at five main factors when deciding where your domicile is:
- Home: how your New York home compares with your new home in size, value, and use
- Active business involvement: whether you still run or actively manage a business in New York
- Time: where you actually spend your days during the year
- Items “near and dear”: where you keep things of personal value, such as art, family photos, heirlooms, and collections
- Family: where your spouse and minor children live and go to school
2. Statutory residency and the 183-day rule
Even if your domicile is elsewhere, you are a New York resident if you keep a permanent place of abode in the state for substantially all of the year (generally more than 11 months) and spend more than 183 days in New York. Many people who have properly moved their domicile to Florida or another state are caught by this test because they keep a New York apartment and lose track of their days.
What tends to trigger a residency audit
- Filing a part-year or nonresident return after years of filing as a resident
- A large change in reported income right after a move, for example the sale of a business or a large stock gain reported as non-resident income
- A move to a state with no income tax while keeping a New York home
- Claiming a new domicile while family, a primary doctor, club memberships, or valuables stay in New York
- A New York apartment or house that stays available to you all year
How New York counts days
Under the 183-day rule, any part of a day spent in New York generally counts as a full day in New York. Arriving for a dinner meeting at 7 p.m. counts the same as spending the whole day in Manhattan. There are narrow exceptions, such as simply traveling through the state to another destination or days spent as an in-patient in a medical facility.
You carry the burden of proving where you were. Auditors often rebuild your calendar from credit card statements, cell phone records, E-ZPass and toll data, airline and travel records, and building access logs. Gaps in your own records usually get resolved against you.
Records to keep, starting now
- A day-by-day calendar showing where you were, saved as you go rather than reconstructed later
- Proof of your new home: lease or deed, utility bills, driver’s license, car registration, and voter registration
- Evidence of where your life is centered: where your family lives, where you see your doctors, where your valuables are kept, and where you spend holidays
- Records of business travel that took you out of the state
After the move: income New York can still tax
A successful move does not end New York’s reach. Nonresidents still owe New York tax on income from New York sources, such as wages for work performed in the state, New York rental property, and certain business income. If you work remotely for a New York employer, New York’s “convenience of the employer” rule may treat days worked from home in another state as New York workdays. Your domicile at death also determines whether your estate owes New York estate tax, which we cover in our guide to estate and trust tax returns.
If you receive a residency audit notice
Do not send a response before you understand what is being asked. The questionnaire is detailed, and early answers shape the rest of the audit. A CPA who handles residency cases can help you gather the records, check your day count, and respond within the deadline.
The best protection is planning before a move, not defending it afterward. If you are thinking about changing your residency, or have received a notice, we can review your situation.
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Common questions about New York residency audits
Can I be a resident of New York and Florida at the same time?
Yes. You can have only one domicile, but you can be a statutory resident of New York while domiciled in Florida if you keep a New York home and spend more than 183 days in the state.
How many years can a New York residency audit cover?
Audits typically cover the three most recent years for which returns were filed. If no return was filed, or income was substantially understated, the state can go back further.
Does a partial day in New York count?
Generally yes. Any part of a day in New York counts as a New York day, with only narrow exceptions.
Talk to Eric about your situation
A short conversation can show where you stand and what to do before the next deadline.
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About the author: Eric Krupnik, CPA, advises high-income individuals, families, and business owners in Brooklyn and Manhattan on tax planning, audits, and residency. Last reviewed: November 2026.
This article is general information, not tax advice for your specific situation.