There is no California exit tax. The state does not charge you a fee for moving away, and every legislative attempt to create one has so far failed. What California does have is a long reach: even after you move, the Franchise Tax Board can tax income tied to California sources, and it can challenge whether you actually left. That is where most of the money is won or lost, not in any headline about an exit tax.
Where the Exit Tax Idea Comes From
Two proposals gave the phrase its life. Assembly Bill 259, introduced in January 2023, would have imposed a one-time wealth tax on individuals and businesses with assets above $50 million who left the state, at 1 percent on wealth up to $1 billion and 1.5 percent above that. It also tried to keep intangible assets like stocks and cryptocurrency within California’s taxing reach after the owner moved. AB 259 did not pass.
A separate effort, the 2026 Billionaire Tax Act, is a ballot initiative rather than a legislative bill. It would impose a one-time 5 percent wealth tax on California billionaires and, as of mid-2025, has been cleared for signature gathering for the November 2026 ballot.1Legislative Analyst’s Office. Initiative Fiscal Analyses (Pre-Ballot) A.G. File No. 2025-024 Neither proposal is law. If you move today, no statute charges you for the act of leaving.
How California Decides You’ve Actually Left
The real question is residency. Under Revenue and Taxation Code Section 17014, you’re a California resident if you’re domiciled in the state or present for other than a temporary or transitory purpose.2California Legislative Information. California Revenue and Taxation Code RTC 17014 Domicile is the place you treat as your permanent home. You can have only one at a time, and it does not change until you establish a new one somewhere else and intend to stay.
The Franchise Tax Board weighs a long list of factors to see where your ties really are: how much time you spend in each state, where your spouse and children live, where your principal home sits, which state issued your driver’s license, where your cars are registered, where you bank, where you vote, and where you hold professional licenses.3Franchise Tax Board. 2024 FTB Publication 1031 Guidelines for Determining Resident Status No single factor decides it. Moving your license alone will not do it.
One threshold matters on its own. If you spend more than nine months in California during a tax year, you’re presumed to be a resident, and the burden shifts to you to prove otherwise.3Franchise Tax Board. 2024 FTB Publication 1031 Guidelines for Determining Resident Status
Income California Can Still Tax After You Move
This is where a real tax bill can follow you. As a nonresident, you owe California tax on all income from California sources, at the same rates residents pay, topping out at 13.3 percent. Several categories catch former residents off guard.
California Real Estate
Gains from selling California real property are taxable by California no matter where you live when the sale closes.4Franchise Tax Board. Part-Year Resident and Nonresident Rental income from California property is taxable too. Own a house in Los Angeles and rent it out from Texas, and that rental income shows up on a California nonresident return every year. A sale triggers capital gains at California rates even if your new state has no income tax.
Stock Options and RSUs
This is where departing tech workers and executives get hit hardest. California sources stock option income to the state where you did the work that earned the options, not where you were living when you exercised them. The FTB uses an allocation formula: California workdays between grant and exercise, divided by total workdays over that period. That ratio sets how much of the income California can tax.5Franchise Tax Board. FTB Publication 1004 Stock Option Guidelines
RSUs work the same way, but the period runs from purchase date to vesting date. Work three years at a San Francisco company while your RSUs vest, move to Nevada, and let the last tranche vest six months later, and California can still tax the portion tied to the California work period. Incentive stock options in a disqualifying disposition follow the same sourcing rules as nonstatutory options.5Franchise Tax Board. FTB Publication 1004 Stock Option Guidelines
Business and Partnership Interests
If you own a business that operates in California, the income attributable to California operations stays taxable here after you leave. The same holds for partnership and LLC interests. Selling your stake in a California partnership can trigger California tax on the gain, especially for hot assets like unrealized receivables and inventory. The FTB treats a nonresident partner’s share of hot-asset income as ordinary business income sourced to California under the state’s apportionment rules.6Franchise Tax Board. FTB Tax News Flash – Sourcing of Gain From Sale of Partnership Interest
Retirement Income Is Off Limits Once You Leave
Federal law protects nonresidents here. Under 4 U.S.C. § 114, no state can tax the retirement income of a nonresident. Distributions from 401(k) plans, traditional and Roth IRAs, 403(b) plans, government pensions, and similar qualified accounts are off the table for California once you’ve established residency elsewhere.7Office of the Law Revision Counsel. 4 USC 114 – Limitation on State Income Taxation of Certain Pension Income The protection covers substantially equal periodic payments made over your lifetime or over at least 10 years. Military retired pay is covered as well.
The catch is the word “nonresident.” The shield activates only after you’ve genuinely moved. If the FTB successfully argues you’re still a California resident, this federal protection does nothing for you.
Timing the Move Around a Big Event
The year you leave, you generally file as a part-year resident. For the months you lived in California, the state taxes your worldwide income. For the months after you moved, California taxes only California-source income.4Franchise Tax Board. Part-Year Resident and Nonresident Income is prorated between the two periods.
Sequence matters. Sell a business or exercise a large block of options after you’ve established nonresidency, and California taxes only the California-source portion. Do it the week before you move, and California taxes the full amount as resident worldwide income. People planning a move around a liquidity event sometimes lose real money by getting the order wrong.
Steps to Establish Nonresidency
Changing your domicile means both moving physically and showing genuine intent to make the new state your permanent home. The FTB looks closely at whether your California ties are actually cut, so half-measures create risk. The following steps build a stronger record:
- Register to vote in your new state and cancel your California registration.
- Get a new driver’s license and register your vehicles in the new state.
- Establish your principal residence outside California. Buying or signing a long-term lease carries more weight than a hotel.
- Move your banking to the new state. Close California accounts or shift your primary accounts.
- Update professional licenses and memberships to reflect the new state.
- Update your mailing address on all financial, legal, and government documents.
- Spend significantly more time in your new state than in California, and keep records that prove it.
None of these steps alone decides the question, but the FTB weighs them collectively.3Franchise Tax Board. 2024 FTB Publication 1031 Guidelines for Determining Resident Status Keeping a vacation home in California or returning often for family will not automatically make you a resident, but it gives the FTB material to work with if other factors are close. The cleanest departures involve a real break: a new home, a new daily routine, and physical presence that matches the paperwork.
What Triggers a Residency Audit
The FTB actively audits people who claim to have left, especially high-income filers. A part-year return showing large income right after your claimed move date, from a stock sale, business sale, or IPO, is one of the most common triggers. W-2s and 1099s listing California as the source state while you leave that income off your return is another. The FTB also watches media coverage of financial windfalls.
The statute of limitations for a California income tax audit is generally four years from the filing date. Underreport your income by 25 percent or more, or fail to file at all, and that window extends. For residency disputes, the FTB can examine any year still open.
If you’re audited, the FTB will reconstruct your life through documentation: cell phone records showing where calls were made, credit card statements showing where you shopped and ate, social media posts, school enrollment for your children, and veterinary records for your pets. Contemporaneous records help most, including travel logs, utility bills at your new address, and lease agreements. Professional fees to defend a residency audit typically run from $200 to over $1,000 per hour, and cases can stretch over months. Keeping organized records from the start costs far less than reconstructing them later.
Moving Outside the United States
Leaving California for another country adds federal expatriation rules on top of any state tax question. If you’re a long-term green card holder (held for at least 8 of the last 15 years) who terminates residency, or a U.S. citizen who renounces citizenship, the IRS may treat you as a “covered expatriate.” That status attaches if your average annual net income tax for the prior five years exceeds $206,000 (2025 figure), your net worth is $2 million or more on the expatriation date, or you fail to certify five years of federal tax compliance.8Internal Revenue Service. Expatriation Tax Covered expatriates face a mark-to-market regime under IRC Section 877A: property is treated as sold at fair market value the day before expatriation, and tax is owed on the net gain. Form 8854 is required for the year of expatriation.9Internal Revenue Service. Instructions for Form 8854 – Initial and Annual Expatriation Statement These are federal obligations, separate from any California filing you owe for the part of the year you were still a state resident.