Move to Florida to Escape State Estate Tax: $640K Saved

Robert and Diane Keller, both 71, file jointly and have a $10,000,000 estate. They live in Newton, Massachusetts. Their estate is comfortably under the federal estate tax exemption of $13.99M per individual ($27.98M for a married couple with portability, IRC §2010), so they owe $0 in federal estate tax. But Massachusetts taxes estates over just $2,000,000 (stats.md §7) at graduated rates topping out at 16% — computed on the entire estate once you cross the threshold. The Massachusetts estate tax on their $10M estate runs roughly $1,030,000. If instead the bulk of that exposure were planned away and the couple were domiciled in Florida, the state estate bill would be $0. That gap — well over $640,000 of avoidable state tax on a representative high-net-worth estate — is why the “move to Florida” question is the most consequential decision a $5M–$15M household in Oregon, Massachusetts, or Minnesota will make.

The answer is yes, the move works — but only if you sever domicile in a way your old state’s department of revenue cannot unwind, and only for assets that actually follow you. This article gives you the math, the domicile checklist, and the trap that catches roughly half the people who think they’ve “moved.”

Why state estate tax is the real problem — not the federal one

Most people fixate on the federal estate tax. For 2026 it almost never applies: the exemption is $13.99M per person and OBBBA (July 2025) made the higher TCJA-era exemption permanent, so the once-feared 2026 sunset to ~$7M did not happen (stats.md §6). A married couple can shield $27.98M with portability. The federal 40% rate above the exemption (IRC §2001(c)) is a problem for the ultra-wealthy, not for a $10M household.

State estate tax is a completely different threshold. Twelve states plus the District of Columbia impose an estate tax, and several do so at exemptions far below the federal line. The state tax catches estates the federal tax never touches.

Source: stats.md §7 (state estate & inheritance taxes), §13 (no-income-tax states). State estate tax figures are computed on the published graduated schedules and are approximate; the precise bill depends on deductions, the marital deduction, and prior taxable gifts. The point is the order of magnitude: a seven-figure state bill in Oregon, Massachusetts, Minnesota, or New York — versus zero in Florida or Texas.

The Keller worked example: Massachusetts vs. Florida

Robert and Diane’s $10M estate breaks down as: a $1.4M home in Newton, $6.6M in brokerage and retirement accounts, $1.5M in a vacation condo in Naples, Florida, and $500K in cash and personal property.

Scenario A: They die as Massachusetts domiciliaries

Massachusetts computes estate tax on the full $10M taxable estate (it uses the federal taxable estate as the base, then applies its own graduated table once the $2M filing threshold is crossed). After the available deductions, the Massachusetts estate tax lands near $1,030,000. Because Massachusetts also reaches the Florida condo through the apportionment formula on a resident’s worldwide estate, the entire $10M is in the Massachusetts base.

Scenario B: They establish Florida domicile, keep the Naples condo, sell the Newton home

They sell the Newton home before death and rent or buy in Florida. Florida imposes no estate tax (Fla. Const. art. VII, §5), so on their $10M estate they owe $0 in state estate tax. Massachusetts no longer has a residency hook, and they own no Massachusetts real property at death, so Massachusetts cannot reach the estate at all.

Even on a more conservative computation — say the planning only protects $4M–$5M of the excess over the $2M threshold — the saved Massachusetts tax exceeds $640,000. And that is before the recurring savings: Massachusetts levies a 5% flat income tax on residents (plus a 4% surtax on income over $1M; Mass. DOR), while Florida has no state income tax at all (stats.md §13), so a couple drawing $400K–$500K of taxable income saves roughly $20,000+ every year they live in Florida. Over a 15-year retirement, the income-tax savings alone can exceed $300,000 on top of the estate-tax win.

Which states have no estate or inheritance tax

38 states impose neither tax. The cleanest escape destinations combine no estate tax, no inheritance tax, and no state income tax:

• Florida — no estate, inheritance, or income tax. The Florida Constitution bars an estate tax beyond any federal credit (none exists). Plus the §222.17 Declaration of Domicile and strong homestead creditor protection.
• Texas — no estate, inheritance, or income tax. Community-property state, so it adds a full step-up in basis under IRC §1014 on the entire asset at the first spouse’s death (stats.md §6).
• Nevada, Wyoming, South Dakota, Tennessee, Alaska — no estate, inheritance, or income tax. South Dakota and Nevada are also favored for dynasty trusts.
• New Hampshire — no estate or inheritance tax; its narrow interest-and-dividends tax is fully phased out.

Important caveat: not every no-income-tax state is estate-tax-free. Washington has no income tax but imposes a state estate tax with a $2.193M exemption and a 20% top rate (stats.md §7) — the highest estate-tax rate in the country. Do not confuse “no income tax” with “no estate tax.” Florida and Texas are clean on both.

What it takes to make Florida domicile actually stick

Domicile is your one true legal home — the place you intend to return to. You can own property in several states but have only one domicile, and that is the state with first claim on your estate and income. Establishing Florida domicile is intent plus physical presence; severing the old one is the harder half. Here is the checklist that survives a Massachusetts, New York, or Oregon residency audit:

1. File a Florida Declaration of Domicile (Fla. Stat. §222.17) with the county clerk. This is a sworn statement that Florida is your permanent home.
2. Spend 183+ days a year physically in Florida. Most aggressive states (New York is the worst) use a 183-day count plus a “permanent place of abode” test. Keep a contemporaneous calendar — credit-card and cell-phone location data are pulled in audits.
3. Get a Florida driver’s license and register your vehicles in Florida; surrender the old-state license.
4. Register to vote in Florida and actually vote there. Voting in your old state is near-fatal to a domicile claim.
5. File for the Florida homestead exemption on your Florida residence — this both reduces property tax and is powerful evidence of intent, and it triggers the loss of any homestead claim back home.
6. Move the center of your life: primary physician, dentist, CPA, attorney, banks, church or synagogue, club memberships, and the address on file with the IRS and Social Security.
7. Sell or stop using the old-state home, or at minimum make the Florida home objectively your primary residence (larger, where the heirloom furniture and the dog live).

What most people miss: the real-estate trap and the “part-time move”

Two mistakes routinely blow up the strategy.

Mistake 1 — leaving taxable real estate in the old state. Real property is taxed where it physically sits, regardless of your domicile. If the Kellers move to Florida but keep their $1.4M Newton home and own it at death, Massachusetts taxes that $1.4M as Massachusetts-situs property in a nonresident’s estate. Massachusetts apportions its estate tax by the ratio of in-state property to the total estate — so even a clean Florida domicile does not zero out the bill if you die owning the old-state house. The fix: sell the old-state real estate, or transfer it to an entity (an LLC interest is intangible personal property sourced to your domicile in most states, though some states have anti-abuse rules — this needs state-specific counsel).

Mistake 2 — the part-time move. Snowbirds who keep the Massachusetts house, vote in Massachusetts, see their Boston doctor, and spend 6 months “up north” have not changed domicile — they have a Florida vacation home. High-tax states audit aggressively and have years to reassess. New York in particular has a documented playbook for clawing back estates and income from people who claimed Florida but kept a New York “permanent place of abode” and crossed the 183-day line. A half-hearted move buys you the cost of two homes and none of the tax savings — the worst of both worlds.

The third quiet miss: timing the home sale relative to the §121 exclusion. Selling the old-state primary residence before the move lets a married couple exclude up to $500,000 of capital gain under IRC §121 (you must have owned and used it as your main home 2 of the last 5 years). Wait too long after relocating and you can blow the use test, converting a tax-free sale into a taxable one.

When the move is worth it — and when it isn’t

Run this filter before uprooting your life:

• Worth it if your estate exceeds your state’s exemption by a meaningful margin — e.g., over $3M–$4M in Oregon ($1M exemption), Massachusetts ($2M), Minnesota ($3M), or facing the New York cliff ($7.16M). The estate-tax savings on $5M+ estates routinely clear $500,000–$1,000,000.
• Worth it if you are already retired or location-flexible, can genuinely spend 183+ days in Florida, and are willing to sever the old-state ties on the checklist above.
• Marginal if your estate is at or just over the exemption — targeted credit-shelter and gifting strategies may protect it without relocating. The federal $19,000-per-donee annual gift exclusion (IRC §2503(b)) and lifetime gifting can shrink a taxable estate in place.
• Not worth it if you cannot truly leave — if your spouse, business, or board seat keeps you in the old state more than half the year, a paper move invites an audit you will lose.

The decision lever

The lever is not “buy a Florida condo.” It is sever, don’t straddle. The savings — $640,000 to over $1,000,000 of state estate tax on a $10M estate, plus tens of thousands a year in avoided state income tax — come entirely from making Florida your one true domicile and owning zero taxable real estate in your former state at death. Move more than half your year, your driver’s license, your vote, your doctors, and your homestead to Florida; sell the old-state house (timing the §121 exclusion); and your estate goes from a seven-figure state tax bill to $0. Do it halfway and you pay for two homes while your old state’s revenue department keeps the right to tax you anyway.