Domicile is a strategy, not a paperwork exercise.

Every quarter we get the same call: a founder, an executive, or a recently-liquid family says they have "moved to Florida" (or Nevada, or Tennessee, or Texas, or Wyoming). When we ask what that means, the answer is usually a driver's license, a homestead filing, and a voter registration. They are surprised when we tell them that, in the eyes of the state they actually moved away from, they have done almost nothing.

High-tax states — California, New York, Massachusetts, New Jersey, Connecticut, Illinois, Minnesota — do not concede a domicile change based on paperwork. They concede it based on an evidentiary record built over time that establishes a genuine, sustained, and intentional relocation of the taxpayer's center of life. Anything short of that is a residency audit waiting to be opened.

The myth of the address change

A residency audit is fundamentally a fact-pattern investigation. The auditor is not asking what your driver's license says. The auditor is asking — using bank records, credit card statements, cell phone tower data, EZ-Pass logs, club memberships, doctor visits, and contemporaneous emails — where you actually were, what you actually did, and where the people and assets that matter to you actually are.

Paperwork is the easy part. It is also, by itself, almost always insufficient.

The four-prong test states actually use

While the precise framework varies by state, virtually every high-tax jurisdiction's residency analysis reduces to four questions:

1. Where is your home?

Not just owned — used. The state asks how many nights you actually slept in each home, and which one you treated as your primary residence in your day-to-day behavior. A $15M home in New York that you visit on weekends and a $3M condo in Miami you sleep in 200 nights a year is a fact pattern that helps. The reverse is fatal.

2. Where do you work?

Where you physically perform the work — not where the company is based, not where the bank account is, not where the LLC is registered. For founders and executives, this is the most examined prong. Board meetings in your old state, regular in-person presence at the company's office, and office space you maintain in the old state all push against the change.

3. Where is your "near and dear"?

Family, art, vehicles, jewelry, and the items the taxpayer treats as personally significant. Where the spouse and minor children actually live, where the kids attend school, and where the irreplaceable possessions are stored all weigh heavily. A "move" where the spouse stays behind is rarely a successful one.

4. Where are your active business interests?

Operating control of an in-state business, board service for in-state nonprofits, club memberships, and ongoing professional relationships in the old state all create gravity that pulls domicile back.

The traps

• Residual home ownership. Keeping the prior residence "for the kids" or "for sentimental reasons" is the single most common failure mode. If the home is still available for the taxpayer's use and is not affirmatively converted (rented to an unrelated party, listed for sale, or structurally repurposed), the auditor will treat it as a continued residence.
• In-state board service and entity control.Continuing to chair the board of an in-state company, sit on its compensation committee, or actively manage its operations from the new state's home office while intermittently traveling to the old state is a pattern that rarely survives audit scrutiny.
• Children in school. Minor children attending a private school in the old state — particularly with the taxpayer listed on emergency contact and pickup authorizations — is a fact the state will surface and weigh heavily.
• Day-count overrun. Most high-tax states use a statutory presumption (often 183+ days) that, if exceeded, flips the burden of proof to the taxpayer regardless of intent. Day counts include partial days. A founder who spends 190 days in New York "to wind down" the year after the move has handed the state a presumptive case.

Florida, Nevada, Tennessee, Texas, Wyoming — which one fits

The "best" no-tax state depends on the taxpayer's existing footprint and the structure of the move. Florida is the default for East Coast moves and has the most developed residency case law. Nevada works well for West Coast moves with proximity needs. Tennessee is increasingly attractive for families with operating businesses in the Mid-South. Texas is well-suited for taxpayers with energy or industrial connections. Wyoming is the cleanest for asset-protection and trust-domicile structures, less so for primary residence without genuine ties.

We do not recommend a state. We help the family pick the one that actually fits the rest of their life — because a domicile in the wrong state is a domicile that fails on audit no matter how good the paperwork looks.

The 18-month rule

Our standard guidance: assume any state residency change will be examined, and build for it. The cleanest cases close on first response and never reach audit; the messy ones drag through 18+ months of correspondence, document requests, and sworn affidavits. The single best predictor of which one a client gets is whether the evidence file was built contemporaneously or reconstructed under deadline pressure after the notice arrived.

The 18-month evidence file

For every domicile change our practice engineers, we assemble a structured evidence file that is updated quarterly for at least 18 months post-move:

1. Day-count log, with supporting evidence (calendar, travel records, credit card geography).
2. Home-use evidence in both jurisdictions (utility records, mail, sustained occupancy).
3. Family location documentation (school enrollment, medical providers, club memberships).
4. Business activity geography (board meeting locations, where contracts were executed, where work product was generated).
5. "Near and dear" inventory (vehicles, art, irreplaceable items and their physical location).
6. Severance evidence from the prior state (resignation from boards, conversion or sale of prior residence, transition of professional service providers).

The file is dull, painstaking, and decisive. The taxpayers who close their domicile change cleanly are the ones who treated the evidence file as part of the move itself — not as paperwork to assemble after the audit notice arrived.

What triggers a residency audit

• A large drop in state-source income reported relative to prior years.
• A reported address change combined with continued in-state W-2 sourcing.
• Continued in-state property ownership with no rental income reported.
• A capital event (IPO, secondary, exit) reported as out-of-state-source after years of in-state filings.

None of these are unfair triggers. They are the patterns the state has learned to flag. The taxpayer who has built a defensible record before the trigger is fine. The taxpayer who has not is in for a long, expensive correction.

Domicile changes done right are extraordinarily valuable — and entirely defensible. Domicile changes done as paperwork exercises are neither. If you are approaching a residency change or have received a notice, our senior practitioners are available for a confidential review.