Every conversation about Florida tax residency starts with income tax. No state income tax — that’s the headline. For someone earning $2 million a year in New York or California, the savings are immediate and obvious.
What gets less attention is what Florida’s tax environment does for your estate.
Does Florida have an estate tax? No. Does Florida have an inheritance tax? No. Those answers are baked into the state constitution, and they carry real consequences for how much of your wealth actually transfers to the next generation.
If you’re doing estate planning and you’re not thinking about where you’re domiciled at death, you’re leaving a significant variable unexamined.
Florida’s Constitutional Prohibition on Estate Taxes
Florida doesn’t just lack an estate tax by statute — it’s prohibited at the constitutional level.
Article VII, Section 5 of the Florida Constitution bars the state from imposing any estate tax or inheritance tax except to absorb what the federal government already allows as a state death tax credit. Florida voters first removed estate taxes from the constitution in 1924, and the prohibition has been reaffirmed since. There’s no legislature that could wake up one session and decide to impose one. Changing this would require a constitutional amendment — a deliberately high bar.
This matters because it’s not the kind of thing that can shift with a new governor or a change in political control of the legislature. The protection is structural.
The Federal Estate Tax Still Applies — and the Numbers Are About to Change
None of this means your estate escapes taxation entirely. The federal estate tax applies regardless of which state you live in, and it’s the first number to understand.
Under the Tax Cuts and Jobs Act of 2017, the federal estate tax exemption was roughly doubled. As of 2024, the exemption is approximately $13.61 million per person, or $27.22 million per married couple using portability. Assets below those thresholds pass to heirs free of federal estate tax.
Here’s the problem: those exemption levels are scheduled to sunset at the end of 2025, reverting to pre-TCJA levels adjusted for inflation — which lands somewhere around $7 million per person, or roughly $14 million per couple.
That’s a significant reduction. An estate worth $20 million that was comfortably below the federal threshold becomes a taxable estate. For high-net-worth families, this change has been driving a wave of estate planning activity in 2024 and 2025 — accelerating gifts, reviewing trust structures, and generally trying to lock in the higher exemption before it disappears.
Where does Florida fit into this? Florida’s constitutional prohibition means that none of the federal tax liability gets compounded by an additional state-level charge. In states with their own estate taxes, it does.
States That DO Have Estate or Inheritance Taxes
This is where the comparison becomes concrete.
Estate taxes are levied on the total value of the estate before distribution. Inheritance taxes are levied on beneficiaries based on what they receive. Some states have one, a few have both.
States with Estate Taxes
Several states that Florida snowbirds commonly come from — or own property in — have their own estate taxes:
- New York — Exemption of approximately $6.94 million (2024), indexed for inflation. Rate: 3.06% to 16%.
- Massachusetts — Exemption of $2 million, no inflation indexing. Rate: 0.8% to 16%.
- Connecticut — Exemption aligns with the federal level, but taxes estates above it at rates up to 12%.
- Illinois — Exemption of $4 million. Rate: 0.8% to 16%.
- Oregon — Exemption of $1 million. Rate: 10% to 16%.
- Washington — Exemption of approximately $2.193 million. Rate up to 20% — among the highest in the country.
- Maryland — Exemption of $5 million. Also has an inheritance tax (below).
New Jersey eliminated its estate tax in 2018 but still has an inheritance tax — one of only six states that do. Beneficiaries other than surviving spouses and certain close relatives pay between 11% and 16% on what they inherit.
The New York Cliff: A Particularly Punishing Rule
New York’s estate tax structure deserves special attention because it’s unusually aggressive.
Most states with estate taxes apply them only to the value above the exemption threshold — similar to how marginal income tax brackets work. New York does not. If your estate exceeds the New York exemption by more than 5%, the entire estate becomes taxable, not just the excess.
To illustrate: an estate worth $7.3 million — just $360,000 above the New York exemption — doesn’t pay estate tax only on $360,000. The entire $7.3 million is now in play. That’s the “cliff.”
For an estate in that range, crossing the exemption threshold by a relatively small amount could trigger hundreds of thousands of dollars in New York estate tax.
What This Means in Real Dollars
Consider a few scenarios to make the math concrete.
Scenario 1: Estate of $10 million, New York domicile at death
New York’s exemption is approximately $6.94 million. The estate exceeds it by roughly $3 million — more than 5% — so the entire $10 million is subject to tax. At a blended rate of approximately 10–12%, the New York estate tax bill is somewhere in the range of $1 million to $1.2 million.
Same estate, Florida domicile at death: $0 in state estate tax. The federal tax would still apply at the relevant rate on the amount above the federal exemption.
Scenario 2: Estate of $8 million, domicile in Massachusetts
Massachusetts taxes estates above $2 million. That’s a taxable estate of $6 million at rates up to 16%. A rough estimate lands around $600,000 to $700,000 in Massachusetts estate tax.
Same estate, Florida domicile: $0 in state estate tax.
Scenario 3: Married couple, combined estate of $25 million, domicile in Washington State
Washington’s exemption is just over $2 million per person, with no portability. Washington’s top rate is 20%. The state tax liability on an estate this size — even with planning — could approach $3 to $4 million.
Same estate, Florida domicile with proper federal planning: $0 in state estate tax.
These figures are illustrative, not precise tax advice. Your actual numbers depend on the composition of the estate, how it’s structured, and what planning has been done. But the directional point is consistent: for large estates, the state of domicile at death determines whether a state-level tax liability exists at all.
The Domicile-at-Death Question
The concept that ties all of this together is domicile at death.
For estate tax purposes, most states impose their tax based on the decedent’s state of domicile at the time of death — not where the property is located (with some exceptions for real estate, which is often subject to the laws of the state where it sits), but for the overall estate, domicile controls.
If you’re domiciled in Florida when you die, Florida’s constitutional prohibition means no Florida estate tax. If your domicile was ambiguous — if you had a summer home in Connecticut, strong ties to New York, and a Florida address that looked like a winter convenience rather than a real home — then states with something to gain may try to assert that your true domicile was theirs.
Estates of high-net-worth individuals are sometimes caught in multi-state disputes where two states each claim domicile and each try to apply their estate tax. These disputes are litigated. They are expensive. And they hit families at the worst possible time.
The Importance of Updating Your Estate Planning Documents
Domicile isn’t just about where you live day-to-day. Your legal documents communicate your intent. If your will was drafted in New York, is governed by New York law, and your estate documents haven’t been updated since you moved to Florida, that’s a signal auditors and courts will notice.
Steps that matter for Florida estate planning:
- Execute a new will governed by Florida law. This signals intent and avoids the question of which state’s rules apply to the probate process.
- Update your revocable living trust to reflect Florida as the governing jurisdiction.
- File a Declaration of Domicile with your Florida county clerk. This is a notarized legal document stating your intent to make Florida your permanent home. It doesn’t create domicile on its own, but it’s documented evidence of your intent.
- Update beneficiary designations on retirement accounts, life insurance, and other non-probate assets to list your Florida address.
- Review the location of your trustee and executor. Naming a Florida-based trustee or executor isn’t required, but it reinforces the Florida connection.
None of these substitute for actually spending time in Florida, but together with a genuine day-count record, they form a coherent picture: this person really did intend Florida to be home.
The Federal Sunset and Why It Raises the Stakes
With the federal estate tax exemption likely to contract significantly at the end of 2025, the calculus shifts.
At $13.61 million per person, many estates that were carefully managed to stay below the threshold will find themselves exposed if the exemption drops to $7 million. Families who haven’t done planning in the last few years will need to revisit structures, gifting strategies, and trust arrangements.
When federal exposure increases, the question of whether state-level tax also applies becomes more consequential. Stacking a New York or Massachusetts state estate tax on top of a reinstated federal liability on a mid-sized estate creates meaningful compounding costs.
Florida’s constitutional prohibition insulates your estate from that second layer entirely. That’s not a marginal benefit at these asset levels.
Why Clear Residency Records Protect Your Heirs
Domicile disputes often don’t surface until after someone dies, which means the people defending the estate’s Florida domicile are your heirs — not you.
They’ll need to demonstrate that your domicile was genuinely Florida at the time of death. That means:
- Evidence of where you spent your time
- Updated legal documents reflecting Florida
- A consistent pattern of civic and financial life in Florida
- Records that predate the dispute — not documentation assembled in response to a claim
The records you keep while you’re alive become your estate’s evidence after you’re gone. A contemporaneous, GPS-verified log of every day you spent in Florida is exactly the kind of documentation that’s difficult for another state to challenge. It shows the pattern over time. It doesn’t require reconstruction. It’s not a narrative — it’s data.
The alternative — relying on credit card records, fragmented calendars, and family testimony years after the fact — is a much weaker position to defend.
A Note on Consulting a Professional
This post covers the general framework around Florida’s estate tax position and why domicile matters for estate planning purposes. It is not legal or tax advice.
Estate planning at high net worth levels involves meaningful complexity — federal and state tax law, trust structures, gifting strategies, the specific composition of your estate, and your family situation all interact in ways that require a qualified estate planning attorney and a CPA who understands multi-state domicile issues.
The principles here are accurate as a general matter. The specifics, and the strategies, require professional guidance tailored to your situation.
How Southbound Helps Protect Your Estate
Establishing Florida domicile while you’re alive is one thing. Proving it after you’re gone — when another state challenges your estate — is a different problem, and it falls entirely on your heirs.
The records you build now become the evidence your estate can use. A continuous, GPS-verified log of every day spent in Florida over years of genuine residency is the kind of documentation that’s hard to dispute in a domicile challenge. It shows a real pattern of life in Florida, not a paper claim.
Southbound runs passively in the background on your iPhone and automatically records each day — whether it was spent in Florida or outside it. No manual entries. No reconstructed calendars. The app’s Departure Budget gives you one number: how many more days you can spend outside Florida this year while staying above the 183-day threshold.
Your data is stored privately in your own iCloud account. Southbound never sees or accesses your location history.
The documentation problem is the easiest part of this to solve. Start building your record now, while the year is still in progress — not after the fact, when your family may need it most.
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Published Mar 30, 2026