The Southbound Journal
Field notes on Florida tax residency — the 183-day rule, domicile audits, and the quiet costs of getting it wrong.
The Index
New York residency auditors don't take your word for where you lived. They build an independent record from cell records, EZ-Pass logs, credit card geolocation, doorman interviews, and a dozen other sources. Here's the playbook, in detail.
Connecticut to Florida is one of the most established tax migration corridors in the country, with Greenwich and Fairfield County leading the way. Here's what the move actually saves, how Connecticut challenges it, and how to make it stick.
A Florida residency claim is only as good as the day-count record behind it. Auditors test that record against cell tower data, credit card geolocation, and EZ-Pass logs. Here is what a defensible record actually looks like — and why most people do not have one.
When Ken Griffin moved Citadel's headquarters from Chicago to Miami in June 2022, he set the reference point for a generation of Illinois wealth departures. The move was about crime, business climate, and tax trajectory — and it has become the template for a larger migration that has not slowed.
On Tax Day 2026, Mayor Zohran Mamdani announced New York City's first-ever pied-à-terre tax — an annual fee on non-primary residences valued above $5 million. Here is what the tax does, why the Ken Griffin backdrop matters, and what it changes for anyone keeping a New York apartment as a Florida domiciliary.
When one spouse moves to Florida and the other stays behind, the tax picture gets complicated fast. Here's what married couples need to know about domicile, day counts, and avoiding the traps.
Illinois has one of the lowest estate tax exemptions in the country, not indexed to inflation, with rates up to 16% and no portability between spouses. For wealthy Illinois families, it is often a larger lifetime tax cost than the income tax. Here is how it works and why Florida is the fix.
The complete action plan for establishing Florida tax residency. File the right documents, move the right ties, and build the audit defense record that protects you if your former state comes calling.
Illinois has a flat income tax, one of the lowest estate tax exemptions in the country, and property taxes second only to New Jersey. Here's what a move to Florida actually saves, what Illinois does to contest it, and how to make it stick.
A contested domicile audit can cost $100,000–$300,000+ in legal fees, back taxes, and penalties — and take four years to resolve. Here's what actually triggers an audit, what auditors look for, and why contemporaneous records are your cheapest insurance.
New York's top combined rate already hits 14.8% for city residents. Now Albany is pushing further — pied-à-terre taxes, high-earner surcharges, an expanding audit bureau. Here's why 2026 is different, and why more high earners are leaving now than at any point in the past decade.
Owning homes in Florida and another state creates probate, tax, and heirship complications most people don't see coming. Here's what actually happens.
Massachusetts' 4% Fair Share surtax on income above $1 million took effect in 2023 and is now fully operational. For high earners — especially those in biotech with equity that can spike in a single year — the math on Florida residency has changed permanently.
New York doesn't have a formal exit tax — but it has something worse. Here's what NY-source income you still owe taxes on after establishing Florida residency.
Florida is one of 38 states with no estate or inheritance tax. For high-net-worth individuals, establishing Florida domicile can protect millions in wealth transfers.
The Florida homestead exemption saves new residents thousands per year in property taxes — and it's one of your strongest pieces of evidence in a residency audit. Here's exactly how it works.
New Jersey has the highest property taxes in the country, a top income tax rate of 10.75%, a burdensome real estate exit withholding requirement, and a Division of Taxation closely connected to New York's audit apparatus. High earners who have been watching the exit are now taking it.
Working remotely from Florida for an out-of-state employer? Here's how remote work affects your tax residency, what traps to avoid, and how to protect your Florida status.
California's Franchise Tax Board is more aggressive than New York's when it comes to auditing departing residents. Here's what you actually save, what California does to challenge it, and how to make the move stick.
Washington just passed its first income tax in 93 years. California and New York are pushing higher rates. New Jersey and Connecticut are circling. A historic convergence of state tax pressure is accelerating high-net-worth migration to Florida — and the window to act may be narrowing.
California is pushing a wealth tax on unrealized gains — and its Franchise Tax Board has every incentive to pursue people who leave. If you're a high-net-worth California resident considering a move to Florida, the window to leave cleanly is narrowing.
Washington State just passed its first income tax in 93 years — a 9.9% hit on income over $1M. For Amazon and Microsoft employees, founders, and executives in Seattle, the calculus on Florida just changed overnight.
You moved to Florida and filed all the paperwork. But if you spend 183 days in your old state and keep a home there, you could still owe taxes as a statutory resident.
A step-by-step guide to filing a Florida Declaration of Domicile — what it is, where to file, what it costs, and why it's one of your strongest pieces of evidence in a residency audit.
Thinking about moving from New York to Florida to save on taxes? Here's what the move actually saves, what New York does to challenge it, and how to make it stick.
Learn how the 183-day rule determines your Florida tax residency, what counts as a day, common mistakes that trigger audits, and how to document your presence.
What do state auditors actually look for in a domicile audit? Here's what evidence counts, how to prepare, and how to protect your Florida tax residency claim.
Planning to establish Florida tax residency? Here's the complete step-by-step checklist — from driver's license to the 183-day requirement — for snowbirds making the move.
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