Moving Out of California: What Happens to Your Taxes
California taxes residents on all of their income and nonresidents on California income. The year you move, you are both, and the Franchise Tax Board looks closely at when the switch happened.
Moving away ends California's claim on your future income, but not on the year you leave. For the move year you file Form 540NR as a part-year resident: California taxes everything you earned while you lived there, plus California-source income afterward, such as rent from a California property or wages for work done in the state. Your pension and retirement withdrawals stop being taxable once you're a nonresident, but equity compensation earned in California can follow you.
Residency is about domicile, not a moving date
California taxes a resident on all income, from anywhere, and a nonresident only on income from California sources. A resident is anyone in California for more than a temporary or transitory purpose, or domiciled in California and outside it only temporarily. Spending more than nine months of a year in California creates a presumption of residency.
When you move, the Franchise Tax Board asks where your closest connections are. It looks at:
- Where you and your spouse live and where your children go to school.
- Where you work and where your business is based.
- Your driver's license, voter registration and vehicle registration.
- Where you keep bank accounts, doctors and professional licenses.
- Whether you kept a California home, and how many days you return.
Keeping a California house, staying registered to vote there and flying back most weeks can make the FTB treat you as a resident well after the move. Update your license, registrations and mailing addresses promptly, and keep records of where you spent each day.
How the part-year return works
On Form 540NR, California doesn't tax your California income at the rates it would face alone. It works out the tax on your total income from all sources as if you had been a full-year resident, then multiplies by the ratio of California income to total income. The effect is that your California income is taxed at the higher rate your total income reaches.
For example, a single filer earns $160,000 for the year, $80,000 of it before moving out on July 1. Using the 2025 brackets:
- Tax on $160,000 as a full-year resident, after the standard deduction and personal credit: $10,635.
- California share: $80,000 of $160,000 = 50%.
- California tax: $5,317.
If California taxed the $80,000 on its own, the bill would be about $3,195. The difference, $2,123, comes from taxing the California income at the rate the full $160,000 reaches.
What California still taxes after you leave
- California real estate: rent from a California property and the gain when you sell it, at any point after you move.
- Work done in California: wages for days you work in the state as a nonresident, including trips back to the office.
- Business income from a business operating in California, including your share from partnerships and S corporations.
- Equity compensation: stock options and RSUs are generally allocated by the California workdays between grant and vesting or exercise. If you vest two years after moving, the part earned while you worked in California is still California income.
- Deferred income: some deferred compensation and installment payments tied to your time as a resident.
What California stops taxing
- Retirement income. A federal law (4 U.S.C. 114) bars states from taxing the pension, 401(k) and IRA income of nonresidents, even if you earned it in California.
- Investment income on stocks, bonds and funds, including gains on securities sold after you become a nonresident.
- Wages for work outside California after the move, including remote work for a California employer done from your new state.
Sell appreciated stock after you've clearly moved, not in the weeks before. The date of the sale decides which state taxes the gain.
Practical steps for the move year
- Give your employer a new Form DE 4 or tell payroll your new state, so California withholding stops.
- If you receive a pension, update Form DE 4P to stop California withholding.
- Keep a log of days in California and the reason for each trip.
- File Form 540NR for the move year, and your new state's part-year return.
- If both states tax the same income, California's other-state tax credit or the other state's credit usually prevents double tax, but only for income taxed by both.
Moving to a state without an income tax, such as Nevada, Texas or Washington, makes the FTB more likely to look at the move closely. Residency audits commonly focus on the year before and the year after the move.
Run your numbers
The Part-Year Resident Tax Calculator runs the whole Form 540NR calculation, line by line, for the year you move. Our California Income Tax Calculator shows the full-year tax on your total income. For retirement income, see what California taxes in retirement, and for the tax on a sale of property, the capital gains calculator.
Frequently Asked Questions
Do I have to pay California taxes if I move out mid-year?
Yes, for part of the year. You file Form 540NR as a part-year resident and pay California tax on all income you received while a resident, plus any California-source income you received after you left.
How does California decide when I stopped being a resident?
By where your domicile and closest connections are, not a single date on a lease. The Franchise Tax Board looks at where you live and work, where your spouse and children live, your driver's license, voter registration, car registration, bank accounts, professional licenses and how many days you spend in California.
Does California tax my pension or 401(k) after I move?
No. Federal law bars states from taxing retirement income of nonresidents, so pension and retirement account withdrawals you receive after becoming a nonresident aren't taxed by California.
Will California tax my stock options or RSUs after I leave?
Often, in part. California taxes the share of equity compensation tied to work you did in California, usually allocated by the number of California workdays between the grant and vesting or exercise dates, even if the shares vest after you move.
Why is my California tax higher than the rate on just my California income?
Because of how Form 540NR works. California figures the tax on your total income from all sources as if you were a full-year resident, then multiplies it by the share that is California income. Your California income is taxed at the rate your total income would reach.
This article is for general information only and is not tax advice. Residency depends on your specific facts; talk to a tax professional before and after a move.