If you move out of California, you may still have to pay California income tax, and whether you do depends on two separate questions: does California still consider you a resident, and do you have income with a California source? Leaving the state does not, by itself, end your tax obligation. The Franchise Tax Board (FTB) can keep taxing you as a resident if your ties to California remain stronger than your ties to your new state, and even a clean break leaves certain categories of income taxable here. With a top marginal rate of 13.3%, getting this wrong is expensive.
When California Still Treats You as a Resident
California taxes residents on all income from everywhere in the world. The state defines a resident as anyone present in California for other than a temporary or transitory purpose, or anyone domiciled in California who happens to be outside the state temporarily.1Franchise Tax Board. Residents Part-Year and Nonresident Two concepts drive the analysis: residency, which is about where you actually live day to day, and domicile, which is your true permanent home and the place you intend to return to whenever you leave. You can only have one domicile at a time, and it stays in place until you actively replace it with a new one.
The Closest Connections Test
To decide where your domicile is, the FTB weighs your ties to California against your ties to anywhere else. This “closest connections” analysis looks at your whole life, not any one factor.2Franchise Tax Board. FTB Publication 1031 Guidelines for Determining Resident Status The agency looks at where your primary home is and any other property you own, where your spouse or registered domestic partner and minor children live, where you bank and where your financial transactions originate, which state issued your driver’s license and registered your vehicles, where you vote, where your doctors, dentists, accountants, and attorneys are, where you hold memberships in places of worship or clubs or professional associations, and the permanence of any work assignments in California.
The FTB weighs the strength of these connections, not just the count. Keeping your main house in California while picking up a Texas driver’s license fools no one. The house matters more than the license.
The Day-Count Rules
If you spend more than nine months of a tax year in California, the state presumes you are a resident. You can overcome the presumption with evidence that you were here only temporarily, but the burden is on you.3California Legislative Information. California Revenue and Taxation Code 17016
Spending fewer than six months in California can work the other way. State regulations provide that someone who is in California for no more than six months total, who is domiciled outside the state and maintains a permanent home elsewhere, is generally treated as being here only temporarily, so long as they aren’t working or running a business in California.4Legal Information Institute. California Code Regs Tit 18 17014 – Who Are Residents and Nonresidents You can still own a California vacation home and keep a local bank account for personal expenses. If you earn money while here, though, the seasonal-visitor exception won’t protect you.
What a Real Move Looks Like
Changing your domicile requires both parts at once: physically moving to your new state and genuinely intending to make it your permanent home. The FTB has seen every version of a half-hearted move and is good at spotting them. The strongest moves do two things in parallel: sever California ties and build matching ties in the new state.
On the physical side, sell your California home, or at minimum rent it out to a third party on a long-term lease. Keeping an empty California house “just in case” is one of the easiest ways to lose a residency audit. Buy or lease a home in the new state. Move your family with you. If your spouse or children stay behind in California, the FTB will treat that as strong evidence your domicile has not changed. Relocate your most valued personal belongings, including heirlooms and art.
On the administrative side, get a driver’s license in your new state and surrender the California one. Register your vehicles. Register to vote and cancel your California registration. Close California bank accounts and open local ones. Transfer any professional licenses. Switch to local doctors, dentists, and other service providers. Update your address with the IRS, the post office, and every financial institution. Join local organizations in your new community.
Keep a Residency Log
This is the step most people skip and the one that matters most in an audit. Keep a detailed daily log of where you are. The FTB’s audit team reconstructs your physical location using credit card statements, bank transactions, airline records, and even veterinary bills, so your log needs to line up with that paper trail.5Franchise Tax Board. Residency and Sourcing Technical Manual Record travel dates to and from California, the purpose of each visit, and where you stayed. A contemporaneous log beats one reconstructed years later.
The 546-Day Employment Contract Safe Harbor
If you leave California for work, there is a specific safe harbor worth knowing. An individual domiciled in California who leaves the state under an employment-related contract for at least 546 consecutive days (roughly 18 months) is treated as a nonresident during the absence.2Franchise Tax Board. FTB Publication 1031 Guidelines for Determining Resident Status
Two things will disqualify you. First, you cannot have more than $200,000 in intangible income (interest, dividends, and similar investment income) during any tax year the contract is in effect. Second, the primary purpose of your absence cannot be to avoid California income tax. Return visits of 45 days or fewer during any tax year count as temporary and do not break the consecutive-day count. A spouse or registered domestic partner who accompanies you for the full 546-day period qualifies too.
California-Source Income You Still Owe Tax On
Changing your domicile does not end your California tax story. The state taxes nonresidents on income that originates in California.6Franchise Tax Board. Part-Year Resident and Nonresident Even if you have not set foot here in years, certain income still lands on a California return.
Wages and Self-Employment Income
If you live elsewhere but physically perform work in California (commuting across the border, traveling for meetings, spending a week at a San Francisco office), the wages for those California workdays are taxable here. The state uses a simple ratio: California workdays divided by total workdays, multiplied by total compensation.6Franchise Tax Board. Part-Year Resident and Nonresident If you work remotely from another state and never set foot in California, your wages are generally not California-source income.
Self-employed workers and independent contractors follow a different rule. California sources that income based on where the customer receives the benefit of the service, not where you do the work.6Franchise Tax Board. Part-Year Resident and Nonresident A web designer in Nevada who builds a site for a California client has California-source income.
Rental Income and California Real Estate Sales
Rental income from property located in California is taxable by California no matter where you live.7Franchise Tax Board. FTB Pub 1100 Taxation of Nonresidents and Individuals Who Change Residency Capital gains from selling California real estate are also California-source income, even if the sale happens years after you leave.
Real estate carries an extra wrinkle: withholding at the closing table. When a nonresident sells California real property, the escrow company must withhold 3⅓% of the sales price and send it to the FTB as a prepayment of the seller’s tax. On a $900,000 sale, that is roughly $30,000 held back. You claim a credit for the withholding on your California return and get a refund if the actual tax owed is less, but the cash flow hit at closing surprises people. For installment sales, the buyer continues withholding 3⅓% of the principal portion of each payment.8Franchise Tax Board. 2026 Instructions for Form 593 Real Estate Withholding Statement
Business and Partnership Income
Your share of income from a California-based partnership, S corporation, or LLC is taxable by California to the extent it is derived from California sources.7Franchise Tax Board. FTB Pub 1100 Taxation of Nonresidents and Individuals Who Change Residency Moving does not change the sourcing of the entity’s income. If the business operates in California, your distributive share keeps flowing through to a California return.
Stock Options and RSUs
Deferred compensation is where California’s reach gets long. Stock options and restricted stock units earned for services performed in California stay partially taxable here even after you move. The FTB allocates this income with a time-based formula: the ratio of California workdays to total workdays from the grant date (for stock options) or purchase date (for RSUs) through the exercise or vesting date.9Franchise Tax Board. Publication 1004 Equity-Based Compensation Guidelines
If you were granted options while working in California and exercised them two years later from Washington, California taxes the portion of the gain tied to your California workdays over that window. The same logic covers RSUs that vest after your departure. Options or RSUs granted long before you ever considered moving can still generate a California tax bill when they finally vest or are exercised.
Retirement Income Is Generally Protected
One major carve-out works in your favor: federal law prohibits any state from taxing the retirement income of a nonresident.10Office of the Law Revision Counsel. 4 US Code 114 – Limitation on State Income Taxation of Certain Pension Income Once you have genuinely moved out and established domicile elsewhere, distributions from your 401(k), traditional IRA, SEP-IRA, 403(b), government pension, or military retirement pay are not subject to California tax. A teacher who worked 30 years in California and retired to Oregon owes nothing to California on those pension checks.
The protection depends on being a true nonresident. If the FTB successfully argues you never really left, retirement income becomes taxable again as worldwide income of a California resident.
Avoiding Double Taxation the Year You Move
In the year you move, you will likely owe both California and your new state tax on some of the same income. California addresses this through Schedule S, the Other State Tax Credit. As a part-year resident, you can claim a credit on your California return for income taxes paid to another state on income that California also taxes, provided that income has a source in the other state under California law.11Franchise Tax Board. 2025 Instructions for Schedule S Other State Tax Credit Attach a copy of the other state’s return.
After you become a full nonresident, the credit narrows. California only allows nonresidents to claim the other state tax credit if they are residents of Arizona, Guam, Oregon, or Virginia.11Franchise Tax Board. 2025 Instructions for Schedule S Other State Tax Credit From any other state, you generally will not get a California credit, but most states offer a reciprocal credit on their own returns for taxes paid to California on the same income, so check your new state’s rules.
Your Final California Return and What Comes After
For the year you move, you file as a part-year resident on Form 540NR, the California Nonresident or Part-Year Resident Income Tax Return.6Franchise Tax Board. Part-Year Resident and Nonresident You report all income from all sources for the portion of the year you were a resident, plus only your California-source income for the portion after you established domicile elsewhere.7Franchise Tax Board. FTB Pub 1100 Taxation of Nonresidents and Individuals Who Change Residency Clearly indicate on the return that it is your final filing as a resident. That formally notifies the FTB of your residency change and creates a record you can rely on in a future audit.
In later years, you must keep filing a California nonresident return if your California-source income exceeds set gross income thresholds. For the 2025 tax year, a single nonresident under 65 with no dependents must file if California gross income exceeds $22,941. For married couples filing jointly, both under 65, the threshold is $45,887.12Franchise Tax Board. 2025 540NR Booklet These are adjusted annually, so check the current 540NR instructions each year.
Residency Audits and the Penalties for Getting It Wrong
The FTB actively audits people who claim to have left, especially higher-income taxpayers who moved to no-income-tax states like Nevada, Texas, or Florida. The audit team reconstructs your physical presence from credit card and bank statements, airline records, ATM transaction locations, and even veterinary records.5Franchise Tax Board. Residency and Sourcing Technical Manual
The FTB generally has four years from the date you filed to issue an assessment. If you did not file a California return for a year the FTB believes you should have, there is no time limit; the agency can come after you at any point.13Franchise Tax Board. Your Tax Audit The same unlimited window applies if the IRS adjusts your federal return and you fail to notify the FTB.
When the FTB determines you owe back taxes, the penalties stack up fast. An accuracy-related penalty for negligence or a substantial understatement adds 20% on top of what you owe. If the agency finds clear evidence of fraud, the penalty jumps to 75% of the underpayment, plus interest running from the original due date.14Franchise Tax Board. FTB 1024 Penalty Reference Chart On a large bill, the fraud penalty alone can exceed the original tax. A clean final return and meticulous records are the cheapest insurance against that outcome.