183-Day Rule: The Line in the Sand (NY vs. FL Taxes)

Why snowbirds are getting taxed—and what to do before it’s too late

If you bought a Florida condo, swapped winter coats for sandals, and told your accountant you’re “officially a Florida resident,” we’ve got one critical question for you:

How many days did you spend in New York in 2025?

We ask because, in the eyes of the New York State Department of Taxation and Finance, violating the 183-day rule can come with a steep price. Spend even one day over the limit, and you may still owe up to 10.9% in state income taxes—even if you’ve filed in Florida, updated your voter registration, and parked a beach cruiser in your new garage.

Here’s what really matters, how the state tracks your location, and what you can still do before the second half of 2025 slips away.

New York Tax Residency: It’s Not Where You Live—It’s Where You Are

Many snowbirds assume that once they buy property in Florida and claim residency, they’ve left New York taxes behind. Unfortunately, New York’s rules aren’t that simple. The state evaluates your status using a two-prong test: domicile and statutory residency. Even if you declare Florida your domicile, New York can still claim you as a resident for tax purposes if you maintain a permanent place of abode in the state and spend 184 or more days there during the calendar year.

The kicker? Any part of a day counts. A red-eye flight that lands at JFK at 11:30 PM and leaves again at 6:00 AM the next day counts as two separate New York days. Driving through Westchester and stopping for coffee can count as one. Your phone pinging a New York cell tower during an overnight stay with family? That’s another.

The law doesn’t care about intent. It cares about proof—and it’s on you to provide it.

Dual-State Residency Planning: A Florida Domicile Doesn’t Guarantee You’re Off the Hook

Many New Yorkers are surprised to learn how important dual-state residency planning is when going back and forth between two states. Buying a condo in Boca or filing a certificate of domicile in Palm Beach doesn’t automatically cut the NY tax cord. For New York to acknowledge a genuine change of residence, you must show that you’ve not only moved physically but also shifted the “center of your life.”

Your domicile only changes when you clearly demonstrate that you’ve abandoned New York as your primary home and re-established your life elsewhere. Until then, you may still be on the hook. This is where many New York retirees get tripped up. It’s not enough to leave New York—you must also establish your new domicile in Florida (or any other state) with the intent to remain indefinitely. 

For example, if you sell your Long Island home in February and spend the rest of the year traveling in an RV, you haven’t legally planted roots elsewhere. Without strong evidence that you arrived in your new state and intended to stay—such as purchasing a primary residence, changing your driver’s license and voter registration, and actually living there—New York may argue that your domicile remains unchanged. It’s a two-part test: leave New York and arrive somewhere else to stay permanently.

Additionally, auditors scrutinize where you go to the doctor, where your kids or grandkids are enrolled in school, where you spend holidays, where your pets are boarded, and where your packages are sent. If your Amazon orders still arrive on Long Island and your doctors are still based in Manhattan, your Florida address won’t be convincing. 

183-Day Pitfalls: Common Dual-State Residency Mistakes

Over the years, we’ve seen many local retirees make honest mistakes that triggered a New York statutory residency audit—often without realizing they were doing anything wrong.

One of the most common errors is assuming remote work done from Florida is automatically exempt from New York tax. Unfortunately, if your employer’s principal office is in NY and they haven’t formally established a bona fide office at your Florida address, your days working from home may still be counted as New York workdays. That means you could owe taxes on income you thought was protected.

Another common issue arises with school enrollment. If you enroll your children—or even assist in registering your grandchildren—in New York schools, that can indicate ongoing ties to the state, regardless of your new mailing address. Similarly, if your credit card statements, subscription boxes, or online shopping orders continue to list your Long Island house as the shipping address, auditors may use that as evidence of a continuing New York residence.

Doctor visits are also revealing. Routine medical appointments in New York throughout the year are often counted both as days spent in-state and as signs that you haven’t truly cut ties. Add in GPS data, credit card receipts, and even ride-share logs, and the Empire State can build a compelling case that your retiree relocation wasn’t as clean as you believed.

New York Audit Triggers—and What They Can Cost You

New York is aggressive about residency audits because they’re lucrative. When the state challenges someone’s residency, the potential revenue gain is often in the six-figure range. That’s a strong incentive to dig deep into anyone who might have severed ties improperly—or too casually.

A few red flags almost always invite closer scrutiny. If you claim a major refund after changing residency, New York may take a second look. Similarly, significant capital gains, Schedule C income, or brokerage 1099s still linked to a New York address often spark reviews. If you sold New York real estate, reported significant investment income, or even continued using a Long Island accountant, those details can attract attention.

Once the audit begins, the costs climb quickly. If New York reclassifies you as a resident, you’ll owe full state income tax on your global earnings—regardless of where they were sourced. Add interest, late-payment penalties, and the legal fees of defending yourself, and a technical misstep can become a six-figure financial burden.

Florida Homestead Exemption: The Importance of Documentation

Proving that you weren’t in New York on a given day doesn’t just come down to memory. Auditors want documentation. Without a strong, consistent record of your whereabouts, you may lose by default.

Your best defense is a detailed log backed by objective records. These include airline itineraries, cell phone GPS data, credit card receipts from out-of-state locations, and timestamped photos. Medical appointment records from Florida, toll transponders from southern states, and even security system logs can all help build your case.

Relocated retirees can also use dedicated day-tracking apps or maintain digital spreadsheets that are automatically synced to the cloud. With tools like these, your financial advisor is able to assemble an audit-ready file—a document trail strong enough to convince even the most skeptical New York examiner that you really have moved on.

The Clock Is Ticking—But You Still Have Time

Here’s the good news. If you’re reading this in late June, you’ve likely logged around 180 calendar days for the year. That gives you just enough time to adjust course before crossing the critical 183-day line.

You can use the next few months to reduce your physical presence in New York, establish stronger documentation of your Florida ties, and begin tracking your movements in a way that stands up to scrutiny. Even better, you can coordinate with your financial advisor now, before the year slips away, to plan upcoming travel, update key documents, and start building your audit-proof file.

July 4th holiday trips, back-to-school visits with grandkids, and unexpected family events all add up. Without a clear system in place, you may pass the threshold before you realize it. By acting now, you can reclaim control.