California’s top income tax rate is 13.3% — the highest of any state in America. Add the SDI payroll tax, federal rates up to 37%, and the hidden cost of California’s sky-high housing, and a $300,000 earner in Los Angeles can lose more than $95,000 a year in taxes alone. A Florida resident earning the same amount pays zero state income tax. This guide breaks down the full gap, explains California’s controversial attempt to tax you after you leave, and shows you exactly how to make a clean break.

Drag the slider to your salary. Your exact net pay in both states updates instantly — including California SDI and all 2026 federal brackets.

Single filer. California column includes federal + CA state income tax + CA SDI (1.1% uncapped) + FICA. Florida column includes federal + FICA only.

2026 federal brackets · CA state 1%–13.3% + SDI 1.1% uncapped · FL 0% state income tax · Single filer · Standard deduction assumed.

California is the only state that combines a 13.3% top income tax rate with an uncapped SDI payroll tax (1.1% of all wages, no ceiling), a high cost of living, and increasingly aggressive residency audits. Here is the complete picture at $300,000 gross income, single filer:

Moving from California to Florida costs roughly $8,000–$18,000 depending on household size. Based on a $13,000 midpoint, tax savings alone cover the move faster than most people expect:

Assumes $13,000 average moving cost. Excludes housing savings, which are typically $1,500–$3,000/month less in Florida vs LA or SF — dramatically shortening payback.

AB 2088 (introduced 2020) proposed a 0.4% annual wealth tax on worldwide net worth above $30 million — and it included a sliding-scale exit tax applied for 10 years after a resident departed California, based on how long they had lived in the state. It did not pass, but it set a clear legislative intent.

Successor bills introduced in 2021, 2023, and again in 2025–2026 sessions have refined the mechanism. The current framework under discussion would:

• Apply a wealth tax of 1.5% annually on net worth above $1 billion (initially), with lower thresholds proposed in later drafts
• Impose an exit tax calculated as a percentage of accumulated wealth gains for residents who leave after the bill’s effective date
• Require departing high-earners to file a California Departure Return disclosing worldwide assets
• Grant the Franchise Tax Board authority to pursue former residents for up to a decade on income connected to California sources

The practical risk for anyone earning over $500,000 or holding significant equity: if you move to Florida and then exercise stock options or receive a large bonus tied to your California employment period, California will assert a tax claim on that income — and the FTB (Franchise Tax Board) has both the legal authority and the budget to pursue it aggressively.

California is the most aggressive state in the country when it comes to residency audits. The Franchise Tax Board has a dedicated unit — the Residency Audit Program — that specifically targets high earners who move to zero-tax states. Simply getting a Florida driver’s license is not enough. You need to systematically sever every tie California could use to claim you are still a resident.

The 9 steps you must complete to make a clean break:

What California can still tax you on after you leave (current law):

• Stock options and RSUs that vested while you were a California resident (pro-rata allocation)
• Deferred compensation tied to California employment
• Rental income from California property
• Income from California-based partnerships, S-Corps, or LLCs
• Capital gains on California real estate

California is one of only nine community property states. This has significant tax implications for married couples moving to Florida — especially if one spouse continues to earn California-sourced income after the move.

Under California community property law, income earned by either spouse during the marriage is generally considered jointly owned 50/50. This creates several traps for couples who move mid-year:

• If you file jointly for the year of the move, California may assert community property rules to claim half of your Florida spouse’s income as California-sourced for the portion of the year you were married CA residents.
• If one spouse stays behind — for school, work, or family — while the other establishes Florida domicile, California may treat the “moved” spouse as still a CA resident under the community property framework.
• Domestic property not retitled before leaving remains subject to California community property rules even after you move, which can affect how gains are calculated on a future sale.

Even before taxes, California’s cost of living is punishing. A $200,000 earner in Los Angeles has the effective spending power of roughly $118,000 once rent, state taxes, and cost of living are factored in. The same gross in Tampa delivers spending power closer to $168,000.

Disclaimer: All tax figures are estimates based on 2026 federal and California state tax brackets, using the standard deduction for single filers. California SDI calculated at 1.1% uncapped. Actual liability varies based on deductions, credits, equity compensation, filing status, and individual circumstances. The information on AB 2088 and successor legislation reflects the legislative landscape as of April 2026 and is subject to change. This content is for informational purposes only and does not constitute legal or tax advice. Always consult a licensed CPA and/or tax attorney familiar with California FTB residency rules.