Moving from California to Florida: Residency, Taxes, and What to Prove

In California

California is both a major origin state, since many nurses domiciled here take travel contracts elsewhere, and the single highest-paying destination state for travel assignments. A nurse's tax home must be a genuine, regularly-returned-to residence with duplicated living expenses; nurses who claim a tax home in Texas or Florida but never actually go back risk having the FTB or IRS reclassify housing stipends as taxable wages if the facts show California, not the claimed state, is really home. A nurse domiciled outside California who works a temporary California assignment as a W-2 traveler does not become a California resident from that assignment alone, but the wages earned during the California contract are still California-source and must be reported on a nonresident Form 540NR.

In Florida

Florida is the most common 'tax home' state travel nurses claim to receive tax-free stipends, but IRS and state auditors have disallowed Florida tax-home claims for nurses who kept a Florida address on paper while actually living year-round in Ohio or another assignment-state rental and never returning to Florida. To hold up, the nurse needs to actually maintain and return to the Florida home between assignments, keep paying for it continuously, and hold Florida driver's license, voter registration, and vehicle registration, not just a mailing address.

In California

California is the most aggressive jock-tax state. FTB counts not just game days but practices, walkthroughs, and even voluntary workouts held at a California team facility during game week, which can turn one road game into three or four California duty days. With the Lakers, Clippers, Warriors, Kings, 49ers, Rams, Chargers, Dodgers, Giants, Padres, and Athletics all based here, nonresident athletes playing any California team face California nonresident tax on their duty-day-apportioned income, while California-domiciled athletes owe California tax on their full worldwide income.

In Florida

Florida is home to the Miami Heat, Miami Dolphins, Tampa Bay Buccaneers, Tampa Bay Lightning, Florida Panthers, Orlando Magic, Miami Marlins, and Tampa Bay Rays. Players on these teams owe zero state tax on the roughly half of duty days spent in Florida, but every state jock tax on duty days in taxing states (California, New York, etc.) still applies in full, and because Florida has no income tax, there is no Florida credit to offset those away-state bills, unlike a player based in a state that both taxes and grants an out-of-state tax credit.

In California

The nine-month presumption under §17016 only creates a rebuttable presumption of residency past that point; it does not create a safe harbor below it. Spending fewer than nine months in California does not guarantee nonresidency; FTB still applies the closest-connections test. This is the classic dual-home audit target described across Bogleheads and r/tax threads: a retiree who keeps the California house, splits time with a Nevada or Arizona property, but leaves a spouse, kids, doctors, or the majority of actual annual days in California.

In Florida

Florida itself places no day-count cap on how long a part-year resident can be in-state; the exposure runs the other direction; the origin state (New York, Connecticut, New Jersey) is the one counting days and evaluating whether the Florida home is a genuine primary residence or a seasonal one. A Florida-domiciled snowbird who spends more than 183 days in New York, with a permanent place of abode there, can still be taxed as a New York statutory resident despite the Florida homestead and driver's license.

In California

California has no convenience-of-employer rule like New York's. A nonresident who physically performs all their work outside California for a California-headquartered employer is not California-taxed on those wages solely because the employer is based here. The trigger is the employee's own residency and physical work location, not the employer's address. A California resident, however, owes California tax on remote wages regardless of where the employer sits.

In Florida

Florida has no convenience-of-the-employer rule and nothing to reciprocate, since it has no income tax to source wages against. The risk for a remote worker moving to Florida is entirely on the origin-state side: if the employer is based in New York and treats the employee as still NY-sourced under NY's convenience rule, the worker can owe New York tax on Florida-earned wages regardless of Florida residency.

In California

California follows the federal Servicemembers Civil Relief Act and the Military Spouses Residency Relief Act. Active-duty military domiciled outside California but stationed here under orders are not California residents and their military pay isn't California-taxed. Under MSRRA and the Veterans Benefits and Transition Act, a nonmilitary spouse can elect the servicemember's domicile for state tax purposes instead of being pulled into California residency by physical presence alone.

In Florida

Florida follows the federal Servicemembers Civil Relief Act (SCRA) and Military Spouses Residency Relief Act (MSRRA): a servicemember's home-of-record state of legal residence does not change solely due to military orders stationing them in Florida, and a spouse can generally elect the servicemember's domicile state under MSRRA. Because Florida has no income tax, choosing Florida as home-of-record eliminates state income tax on military pay entirely, which is why Florida is a common home-of-record choice among active-duty service members.

In California

Federal law (49 U.S.C. §40116) limits taxation of air carrier employees to their state of residence and any state where they earn more than 50% of their pay, overriding ordinary duty-day sourcing. California hosts major crew bases at LAX and SFO, so this carve-out matters heavily for California-based flight crew who fly national or international routes.

In Florida

Federal law (49 U.S.C. § 40116) restricts states from taxing air carrier employees' wages except by their state of residence and, in limited cases, the state where they earn more than 50% of their pay. Because Florida has no income tax, crew members domiciled in Florida owe no state tax on their airline wages regardless of how their duty time is split, which is why Florida (along with Texas) is a common domicile choice for pilots and flight attendants based in Miami, Fort Lauderdale, or Orlando.