The Math That Starts the Conversation

New York State’s top marginal rate is 10.9%. Add New York City’s 3.876% on top of that, and a high earner in Manhattan is paying 14.776% to state and local governments before the federal return even enters the picture. California’s top rate is 13.3% — the highest state income tax rate in the country. That’s on ordinary income, and California also taxes capital gains as ordinary income with no preferential rate.

Florida and Texas charge zero state income tax. No tax on wages, no tax on investment income, no tax on retirement distributions. For someone earning $1 million a year, the difference between living in New York City and living in Miami is roughly $147,000 annually in state and city taxes alone. At $2 million, you’re looking at close to $295,000. That kind of money changes the math on a lot of decisions — where to buy property, where to base your business, where to raise a family.

The gap has only widened since the 2017 Tax Cuts and Jobs Act capped the federal SALT deduction at $10,000. Before that cap, high earners could deduct a substantial portion of their state taxes on their federal return, which softened the blow. Now, whether you pay $15,000 or $150,000 in state income taxes, you can only deduct $10,000 of it federally. That single change made the effective cost of living in a high-tax state meaningfully higher for anyone earning above roughly $200,000.

We’ve watched the client conversations shift. Five years ago, “moving to Florida” was something people mentioned casually. Now it’s the first planning topic on the table for about a third of our high-net-worth clients and a growing share of our business owner clients who can run their operations remotely.

New York’s Residency Audit Machine

New York doesn’t let go easily. The state’s Department of Taxation and Finance runs one of the most aggressive residency audit programs in the country, and it generates hundreds of millions in additional revenue every year. If you’ve been a New York resident and you move out, you should assume that a residency audit is possible — especially if your income is above $1 million.

Domicile vs. Statutory Residency: Two Ways New York Keeps You

New York has two independent tests for residency, and you can fail either one. The first is domicile — where is your permanent home, the place you intend to return to whenever you leave? The second is statutory residency — did you maintain a “permanent place of abode” in New York and spend more than 183 days in the state during the tax year?

Here’s what catches people: you can successfully change your domicile to Florida and still be a New York statutory resident if you kept your Manhattan apartment and spent 184 days in New York. Both tests operate independently. You need to pass both.

The 548-Day Safe Harbor (and Why It’s Harder Than It Sounds)

New York offers a safe harbor from the domicile test under Tax Law Section 605(b)(1)(B). If you meet all of these conditions, New York will accept that your domicile has changed:

• You spend fewer than 90 days in New York during the tax year
• You don’t maintain a permanent place of abode in New York for more than 90 days
• You can demonstrate that you’re present in your new domicile for at least 548 days over any consecutive 18-month period — the so-called 548-day rule

That 548 days over 18 months works out to roughly 30 days per month in your new state. Sounds doable until you realize that business trips back to New York, visits to family, attending events at your old firm — all of that chips away at the count. We’ve had clients who thought they were well clear of the safe harbor threshold, only to discover they’d spent 95 days in New York because they weren’t counting partial days correctly. New York counts any part of a day as a full day. Fly in at 11 PM and leave the next morning — that’s two days.

The “Teddy Bear Audit” — What Auditors Actually Look For

New York residency auditors are known for what’s informally called the teddy bear audit. They’re not just looking at your tax return. They’re looking at where your stuff is. Where’s your dog? Where’s your family silverware? Where do your kids go to school? Which house has more closet space filled with your clothes? Where is the art you care about? Where’s your primary physician, your dentist, your gym membership? Which address is on your Amazon account?

The New York Department of Taxation and Finance evaluates domicile using five primary factors: your home, your business, your time, your near and dear possessions, and your family connections. An auditor will walk through each one methodically. They’ll subpoena cell phone records to track your physical location. They’ll check EZ-Pass records, credit card statements, social media posts. One auditor famously asked a taxpayer which home had the family’s pet — the logic being that you keep your pet where you actually live.

This isn’t an exaggeration. We’ve been through these audits with clients. They’re thorough, they’re personal, and the assessments when you lose are substantial — back taxes plus interest plus penalties, sometimes covering multiple years.

California’s Approach: Different Rules, Same Intensity

California’s Franchise Tax Board (FTB) doesn’t run the same style of domicile audit that New York does, but it has its own set of rules that trip people up — sometimes worse, because the rules around intangible income sourcing are less intuitive.

The “Closest Connections” Test

California determines residency based on where you have the closest connections. The FTB looks at factors similar to New York’s: where you vote, where your bank accounts are, where your vehicles are registered, where your professional licenses are active, where your social and religious organizations are, where your medical and dental providers are. California also looks at the state where you file your tax returns claiming residency — if you’ve been filing as a California resident for ten years and suddenly claim Texas residency, that shift is going to draw attention.

One wrinkle that’s specific to California: the FTB has historically been aggressive about asserting that individuals who leave the state mid-year still owe California tax on income earned while they were residents. That might sound obvious, but it gets complicated with stock options that vested over multiple years, deferred compensation that was earned in California but paid out after the move, and partnership income from California-based businesses. The sourcing rules for these income types don’t always follow where you were physically sitting when the check arrived.

The Safe Harbor Election for Leaving California

California offers a safe harbor for individuals who are leaving the state. Under FTB Publication 1031, if you meet certain conditions — including establishing domicile in another state and spending fewer than 45 days in California during the following year — you can elect safe harbor treatment. This doesn’t eliminate California tax on California-source income (it doesn’t), but it helps establish your residency departure date more clearly.

The 45-day limit is tight. A lot of our clients who move from LA to Texas still have business in California — clients there, production work there, meetings there. Forty-five days goes fast when you’re flying back twice a month for a day or two at a time.

Intangible Income: California’s Long Arm

Here’s the part that surprises people. California taxes residents on worldwide income, including gains from selling stock, cryptocurrency, partnership interests, and other intangibles. If you sell $5 million in stock on January 15 while you’re still a California resident, California wants its 13.3% cut — roughly $665,000. If you sell the same stock on February 1 after you’ve moved to Texas and properly established residency, California gets nothing on that gain (assuming the stock isn’t from a California-source business).

Timing the residency change around a large liquidity event is one of the most common planning conversations we have. It’s also one of the areas where the FTB is most likely to challenge you. If you move to Texas on January 28 and sell $10 million in stock on February 2, expect a letter. The FTB will want to see evidence that your move was genuine and not a temporary relocation structured around the sale. This is where having a documented plan, a signed lease, a capital gains tax strategy prepared in advance, and a clear break from California all matter.

Establishing Domicile in Florida

Florida makes it relatively straightforward to establish domicile, which is part of why so many people choose it over other no-tax states. The process has specific legal steps, and skipping any of them gives New York or California ammunition in a future audit.

File a Declaration of Domicile

Under Florida Statute Section 222.17, any person who has established residence in Florida can file a Declaration of Domicile with the clerk of the circuit court in their county. This is a sworn statement that Florida is your permanent home. It’s not required by law, but it creates a dated, notarized public record that’s useful evidence in any residency dispute with your former state.

File it as soon as you move. Not “when you get around to it.” The date on this document matters if New York or California ever questions your departure date.

The Full Checklist

Beyond the Declaration of Domicile, you should take these steps within the first 30 days of your move to Florida:

• Florida driver’s license — Florida law requires new residents to obtain a Florida license within 30 days. Surrender your New York or California license. Don’t keep both.
• Voter registration — Register to vote in Florida and cancel your registration in your former state
• Vehicle registration — Register your vehicles in Florida
• Bank accounts — Open accounts at a Florida branch or change your primary banking address to Florida
• Professional memberships — Update your address with any professional associations, licensing boards, or organizations
• Estate planning documents — Update your will, trusts, and powers of attorney to reference Florida law. Florida also has a favorable estate tax situation — no state estate tax, which is a separate but significant benefit for high-net-worth individuals
• Homestead exemption — If you’re buying property in Florida, file for homestead exemption with the county property appraiser. This protects up to $50,000 of assessed value from property taxes and is another legal marker of domicile

The point of all of this isn’t paperwork for paperwork’s sake. Each item creates a documented connection to Florida that you can point to if your former state challenges the move. An auditor sees a Florida driver’s license issued in March, a Declaration of Domicile filed in March, voter registration changed in March, and a homestead exemption filed in April — that tells a clear story. A client who moved in March but didn’t get a Florida license until September and never filed a Declaration of Domicile has a much weaker case.

Florida’s lack of a state income tax is protected by the Florida Constitution, Article VII, Section 5, which prohibits the state from levying a personal income tax. That’s about as permanent as a tax benefit gets. It would require a constitutional amendment — two-thirds of both chambers plus voter approval — to change. Your capital gains in Florida are taxed at the federal level only.

Establishing Residency in Texas

Texas is the other major no-income-tax destination, and for clients who don’t want the humidity or the hurricane insurance premiums, it’s the preferred choice. Austin, Dallas, and Houston have all seen massive inflows of high earners and businesses relocating from California in particular.

Texas has no state income tax, and like Florida, that protection is written into the Texas Constitution, Article VIII, Section 24-a. The state funds itself through sales tax (6.25% state, up to 8.25% combined with local) and property taxes, which are among the highest in the country.

Property Tax Reality Check

This is where the Texas math gets more complicated than people expect. The average effective property tax rate in Texas is roughly 1.6% to 1.8% of assessed value, compared to about 0.86% in Florida and 0.72% in California. On a $2 million home, you’re looking at roughly $32,000 to $36,000 per year in Texas property taxes. In California, that same home might carry $14,400 in property taxes (and possibly less if Proposition 13 has kept the assessed value low).

For someone earning $500,000 a year, the income tax savings from leaving California ($50,000+) more than offset the property tax increase. But for someone earning $200,000 who buys a $1.5 million home in Texas, the calculation is tighter. We run these numbers for every client considering the move because the answer is genuinely different depending on income level, home value, and spending patterns.

The Franchise Tax for Business Owners

Texas doesn’t have a personal income tax, but it does have a franchise tax (also called the margin tax) on businesses with revenue above $2.47 million. The rate is 0.375% for retail and wholesale businesses, 0.75% for all others. If you’re moving your business to Texas along with yourself, this is a real cost that needs to be part of the analysis. It’s not an income tax — it’s based on total revenue minus certain deductions — but it’s a tax your business will owe that it might not have owed in Florida, which has no analogous tax for most businesses.

For sole proprietors and single-member LLCs below the revenue threshold, it’s a non-issue. For larger operations, talk to your CPA about the franchise tax impact before finalizing the move. Our tax and advisory team models this as part of the full relocation analysis.

What Actually Changes on Your Tax Return

The year you move is the most complicated year on your tax return, sometimes for the rest of your life. Here’s what to expect.

The Split-Year Return

In the year of your move, you’ll typically file a part-year resident return in your departure state (New York or California) and, if you’re moving to Florida or Texas, no state return in your new state. New York’s part-year return (Form IT-203) requires you to allocate income between the portion earned while you were a New York resident and the portion earned after you left. California’s part-year return (Form 540NR) does the same thing.

The allocation isn’t always simple. W-2 wages can usually be split based on your last day of residency. But what about a year-end bonus that was earned over twelve months but paid in December after you’d already moved? What about stock options that vested in October but were granted three years ago while you were a New York resident? Partnership K-1 income from a business that operates in multiple states? Each of these has specific sourcing rules, and getting them wrong means either overpaying (which happens more often than you’d think) or underpaying and getting audited.

For W-2 employees, your employer should issue a W-2 that reflects wages earned in each state. Ask your HR department to split the W-2 based on your last day of residency. If they won’t (some payroll systems make this difficult), you’ll need to do the allocation yourself on the state return, and you’ll want documentation — your resignation of old-state residency, your start date at the new address — to support the split.

Estimated Tax Payments Change Immediately

If you’ve been making quarterly estimated payments to New York or California, those stop as of your residency change date. This sounds obvious, but we’ve had clients continue sending estimated payments to their old state for a full year after moving because their accountant hadn’t updated the payment schedule. That’s money you don’t get back easily — you can claim it on your final part-year return, but overpayments to a state you’ve left sometimes take 6-12 months to refund.

Conversely, your federal estimated payments might need adjustment. If you were deducting state taxes on your federal return (up to the $10,000 SALT cap), eliminating state taxes doesn’t change your federal taxable income much because you were already capped. But if your state tax payments were affecting your AMT calculation or other computations, there could be knock-on effects.

Retirement Account Distributions: The State That Wants Its Cut

Here’s a genuine win for people who move before retirement. If you have a traditional IRA, 401(k), or pension, the state where you’re a resident when you take distributions is the state that taxes them. New York will tax your IRA withdrawals at up to 10.9%. Florida and Texas won’t tax them at all. If you’re planning to draw down retirement accounts, doing so from a no-tax state saves real money.

But there’s a catch for New York state tax planning — if you contributed to those accounts while earning New York-sourced income and you’re still receiving New York-sourced income (say, from a pension tied to New York employment), New York may try to source some of that income back to New York even after you’ve moved. Federal law (4 U.S.C. Section 114) generally prohibits states from taxing retirement plan distributions to non-residents, but the exceptions and edge cases (especially around deferred compensation that doesn’t qualify as a “retirement plan” under the statute) are worth discussing with your CPA.

Common Mistakes That Undo the Entire Move

After handling dozens of these relocations, the mistakes we see repeat themselves with depressing regularity. Most of them are avoidable with planning. Almost none of them are fixable after the fact.

Keeping Your Old Property and Spending Too Much Time There

This is the single most common failure. A client moves to Florida, buys a house, files a Declaration of Domicile — but keeps the apartment on Central Park West “because the kids are still in school there” or “because I still need it for business.” That apartment is a permanent place of abode under New York law. Spend more than 183 days in New York with that apartment still in your name and you’re a statutory resident. Full stop. New York taxes all of your worldwide income.

If you’re going to keep a New York property, you need to be extremely disciplined about tracking your days. We recommend a day-counting app or a shared spreadsheet that both spouses update in real time. Don’t rely on memory. Don’t rely on your calendar. Count every partial day.

The same applies to California. If you keep your Beverly Hills house and spend extended periods there, the FTB will argue you never really left. Sell the property or rent it out on a long-term lease to a third party. A property that’s rented out is less likely to be treated as your “place of abode” than one that’s sitting there furnished and available for you.

Not Severing Professional and Social Ties

Keeping your New York or California professional licenses active, maintaining your memberships at your old clubs, staying on the board of a New York-based nonprofit, continuing to see your doctors in Manhattan — each of these is a thread that an auditor can pull. None of them individually proves you didn’t move, but collectively they paint a picture of someone who never really left.

We tell clients: treat the move like a divorce. You don’t keep half your stuff at your ex’s house and visit on weekends. Clean break. Find new doctors, new gym, new social connections in your new city. It’s inconvenient for the first year, and it saves you six figures if you’re ever audited.

Celebrating Zero State Tax Too Early

The move to Florida or Texas doesn’t eliminate all state tax obligations in the year of the move. You still owe New York or California tax on income earned while you were a resident. You may owe those states tax on income sourced to those states even after you leave — New York capital gains tax on the sale of a New York business, for example, or California tax on income from a California partnership, follows the source regardless of where you live.

Some clients move in January and assume they’ll owe zero state tax for the year. That’s rarely true. There’s almost always a part-year filing obligation, and if you have ongoing income sourced to your old state, you may have a non-resident filing obligation for years afterward.

The CPA Perspective: Planning the Move Right

We’ve been through this process with enough clients to have strong opinions about how to do it. Here’s what we tell people.

Timing Matters More Than You Think

January 1 is the cleanest date to establish new residency. You file a full-year non-resident return in your old state (if you have source income there) and avoid the complexity of a part-year allocation. Mid-year moves work fine but add complexity and cost to the return preparation — expect your tax prep fees to be higher in the year of the move because of the dual-state filing.

If you have a known liquidity event — a business sale, a large stock sale, the exercise of options — plan the move to happen before the event closes. Not the same week. Months before, ideally. You want a clear, documented period of Florida or Texas residency before the income hits. Moving to Florida on March 1 and closing a $20 million business sale on March 15 is technically fine if your residency change was genuine, but it invites scrutiny.

Year-of-Move Checklist (What We Do for Clients)

When a client tells us they’re relocating, here’s the sequence we walk through:

1. Run the full financial comparison — income tax savings vs. property tax increase, cost of living differences, and any franchise/business tax implications in the new state
2. Identify all income sources that will require continued filing in the old state (partnerships, rental properties, deferred comp, business income sourced to NY or CA)
3. Set the move date and create a 30-day action list for establishing domicile in the new state
4. Adjust estimated tax payments — stop state estimates to the old state, confirm federal estimates are calibrated correctly
5. Review estate planning documents with the client’s attorney — different states have different rules on community property, homestead protection, and state estate taxes
6. Set up a day-counting system if the client will travel back to the old state at all during the first two years
7. Prepare the part-year returns and any non-resident returns at year-end, with full documentation of the residency change

The whole process typically takes 2-4 months of planning before the move date and another 6-12 months of follow-up to make sure everything is clean. It’s not something you do casually. But done right, the savings are real, they’re permanent, and they compound every year.

If you’re considering this move — or if you’ve already moved and aren’t sure whether you did it correctly — reach out to us. We’ve handled these transitions for clients leaving New York for Miami, leaving LA for Austin, and everything in between. The specifics matter, and a 30-minute conversation early in the process can prevent a very expensive mistake later.