California Residency When Moving to Florida
The closest-connection test, why the safe harbor rarely helps, California-source income, and audits
Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks
California taxes residents on worldwide income and asks whether someone is in California for other than a temporary or transitory purpose, weighing their connections to California against Florida. There's no simple day-count exit for a domestic move. The Franchise Tax Board audits high earners who leave and keeps taxing California-source income after the move.
On this page
The residency test
| Element | Detail |
|---|---|
| Resident | Present in California for other than a temporary or transitory purpose, or domiciled in California and absent temporarily |
| Closest connections | Homes, spouse and children, where time is spent, driver's licence and vehicles, voter registration, professional licences, bank accounts, doctors, club memberships, where income is earned |
| Presumption | Spending more than nine months in California in a year creates a presumption of residency |
| 546-day safe harbor | A California domiciliary outside California under an employment-related contract for at least 546 consecutive days (an accompanying spouse too) — lost if intangible income exceeds US$200,000 in any year of the contract or the main purpose is avoiding tax |
California-source income after the move
Nonresidents remain taxable on California-source income: California wages for work performed there, California rental property, California business income, installment gain on California real property (whenever the payments arrive), and installment gain on stock or another intangible sold while still a resident (interest received after the move isn't taxed). Deferred compensation earned in California stays California-source unless federal law protects it (qualified plans, and nonqualified plans paid in substantially equal installments over life expectancy or at least 10 years — the pensions guide).
Large income events
Stock option exercises and RSU vesting after the move are allocated by California workdays — over the grant-to-exercise period for options and the grant-to-vest period for restricted stock and RSUs (the stock options after moving guide); a business sale shortly after a move draws scrutiny of the move date.
Frequently asked questions
How do I stop being a California resident?
Move your closest connections — home, family, time, licences, accounts, and work — to Florida, and document the date.
Does the 546-day safe harbor help me move to Florida?
Rarely — it covers only a California domiciliary working outside California under an employment-related contract for at least 546 consecutive days, and it's lost if intangible income exceeds US$200,000 in any year of the contract or avoiding tax is the main purpose. A permanent move turns on closest connections instead.
Does California tax income after I leave?
Yes, on California-source income, including some installment sale gains and equity compensation earned while resident.
Will the Franchise Tax Board audit my move?
High earners and those with large income events around the move are frequently reviewed.
Official sources
The California Franchise Tax Board explains: “Generally, your state of residence is where you have your closest connections. If you leave your state of residence, it is important to determine if your presence in a different location is for a temporary or transitory purpose.” — California Franchise Tax Board, 2025 FTB Publication 1031 Guidelines for Determining Resident Status, https://www.ftb.ca.gov/forms/2025/2025-1031-publication.pdf
Next step
Fairlight Accounting is a cross-border accounting and tax practice with a U.S. Tax Desk and a Canadian Tax Desk. Our U.S. Tax Desk handles California part-year and nonresident returns, residency planning, and sourcing of post-move income. See pricing or book a call.
Cross-border taxes, handled in one place
U.S. and Canadian filings prepared together by our U.S. and Canadian Tax Desks.
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