Leaving California? What the FTB Looks At
Every year, hundreds of thousands of people move from California to another state. Many expect their California income tax to end the day the moving truck leaves. It often doesn't work that way. California decides residency by looking at where your life is actually centered, not by the address on your mail. And some income stays taxable by California even after you've truly left.
What the data says • About 590,000 people moved from California to other states in 2023, while about 390,000 moved in. • Net outmigration was about 300,000 people a year from 2020 to 2022, up from about 170,000 in 2019. • In 2022, about 1.7% of California taxpayers earning more than $200,000 moved out. • Income tax lost to outmigration grew from about 0.5% of California's personal income tax revenue before the pandemic to 1.6% in 2022-23. Source: Legislative Analyst's Office, based on IRS migration data. |
How many people are leaving
California's Legislative Analyst's Office tracks moves using IRS data on where taxpayers file from one year to the next. Before the pandemic, about 170,000 more people left California for other states than arrived. From 2020 through 2022, that net loss rose to about 300,000 people a year. It eased to about 200,000 in 2023.
The movers have changed, too. Before the pandemic, people leaving California tended to have lower incomes. Since then, more middle- and higher-income households have left. In 2022, about 1.7% of taxpayers earning more than $200,000 moved out. That's why the state's lost income tax grew faster than the number of people leaving. It rose from about 0.5% of personal income tax revenue to 1.6% in 2022-23, roughly tripling. The largest net flows of taxpayer income went to Texas, Florida, and Tennessee.
With that much revenue at stake, it's no surprise that residency is a frequent question between departing taxpayers and the Franchise Tax Board (FTB).
Residency and domicile are different things
California uses two related ideas, and the difference matters.
Domicile is your permanent home, the place you intend to return to whenever you're away. You can only have one domicile at a time, and you keep it until you establish a new one.
Residency is what determines your California tax. Under state law, you are a California resident if either of these is true:
You are in California for something other than a temporary or transitory purpose.
Your domicile is California, and you are outside the state only for a temporary or transitory purpose.
This means you can be domiciled in California without being a resident, or domiciled elsewhere and still be a resident. If you spend more than nine months of a year in California, the law presumes you are a resident. The reverse isn't true, though. Spending fewer than nine months in California does not by itself make you a nonresident.
Changing your domicile takes three things
According to the FTB, a change of domicile requires all three of the following:
Abandoning your old domicile.
Physically moving to and living in the new place.
Intending to stay there permanently or indefinitely, as shown by your actions.
The third point is where most disputes happen. Saying you've moved is not enough. Your actions have to show it.
The FTB's "closest connections" test
The FTB's guiding idea is that you are a resident of the place where you have your closest connections. It compares your ties to California with your ties to your new state. The strength of the ties matters more than the number, and no single factor decides the answer.
The factors the FTB lists include:
Factor | What points to a real move |
Time spent in California vs. elsewhere | Most of your days are spent in the new state, and you can prove it |
Where your spouse and children live | Your family lives with you in the new state, and children attend school there |
Your principal residence | Your main home is in the new state. A California home is sold, rented out, or clearly secondary |
Driver's license and vehicle registration | Both are from the new state |
Voter registration | You are registered to vote in the new state |
Professional licenses | They are held in the new state |
Bank accounts and where transactions start | Your main accounts and spending are based in the new state |
Doctors, dentists, accountants, and attorneys | Your providers are in the new state |
Social ties | Your place of worship, clubs, and associations are in the new state |
Real property and investments | Your property and business interests are centered in the new state |
Work assignment | Your job in the new state is permanent, not a temporary assignment |
Source: FTB Publication 1031, Section G.
A common problem is the half move. A family buys a home in Nevada or Texas but keeps the California house, the California doctors, and the California country club, and spends much of the year back in California. In that situation, the FTB can argue the person's closest connections never left.
A safe harbor for job assignments
California offers one bright-line rule for people who leave for work. If you are domiciled in California but work outside the state under an employment contract for at least 546 consecutive days, you are treated as a nonresident for that period. Your spouse who goes with you is treated the same way.
The safe harbor has limits:
Return visits to California can't total more than 45 days in any tax year covered by the contract.
It doesn't apply if you have more than $200,000 of investment income (from stocks, bonds, and similar property) in any year the contract is in effect.
It doesn't apply if the main purpose of the absence is to avoid California tax.
Back-to-back contracts with a break in between can't be combined to reach 546 days.
The year you move: the part-year return
In the year you leave, you generally file California Form 540NR as a part-year resident. California taxes:
All of your income for the part of the year you were a resident, wherever it came from.
Only your California-source income for the part of the year after you became a nonresident.
There's a catch in how the tax is figured. California first computes tax as if all your income for the year were California income, which sets your tax rate. It then applies that rate only to the income California is allowed to tax. So a part-year resident with high total income pays California tax at a high rate, even on a smaller California share.
Income that can follow you out of state
Becoming a nonresident doesn't end California's claim to income earned from California sources. Common examples:
Wages for work done in California. Wages are sourced where the work is performed, not where the employer is or where you live when you're paid.
Stock options earned in California. If you were granted nonqualified options while working in California and exercise them after you move, the income is still California income to the extent it was earned for California work.
California real estate. Rent from California property, and gain when you sell it, stay California income. Installment payments from a sale of California property also stay taxable by California after you move.
California business income. Income from a business operating in California keeps a California source.
On the other hand, interest, dividends, and gains from stocks and bonds are generally sourced to where you live when you receive them. Once you are truly a nonresident, they usually aren't California income, unless the investments are tied to a California business. Because so much can turn on the timing, large income events near the date of a move deserve close attention.
How to document your move
Keep a calendar of where you spend each day, especially in the first year or two. Travel records, receipts, and phone location history can back it up.
Move the paperwork promptly. Get a new driver's license, register your vehicles, and register to vote in the new state.
Decide what to do with the California home. Selling it or renting it to an unrelated tenant sends a clearer signal than keeping it available for your own use.
Shift your everyday life. Move bank accounts, doctors, and memberships where it makes sense.
Plan big transactions carefully. Get advice before selling a business, exercising stock options, or selling appreciated property around the time of your move.
File the right return. In the year you move, file Form 540NR as a part-year resident and report your residency dates accurately.
What this means for you • Moving your address is not the same as moving your residency. The FTB looks at where your life is centered, and the strength of your ties matters more than the number. • Keeping a California home, family, or routine can keep you a California resident even after you buy a home elsewhere. • Some income stays taxable by California after you leave, including pay for California work, stock options earned here, and income from California property. • Good records made at the time of the move are your best defense if the FTB asks questions later. |
The bottom line
Leaving California can end your California income tax, but only if the move is real and well documented. The FTB judges residency by your actions, not your intentions, and it keeps the right to tax income earned in California even after you go. If you are planning a move, especially one paired with a large sale or a stock option exercise, plan the timing and the paperwork before you pack.
This article provides general information only and is not tax advice. Tax rules depend on your specific facts. For advice on your situation, please book a consultation with QM Accounting.
Sources
Legislative Analyst's Office: New IRS Data Show Pandemic Outmigration Eased in 2023 (April 2026)
Legislative Analyst's Office: IRS Data Show Pandemic Uptick in Outmigration Continues (July 2024)
FTB Publication 1031, Guidelines for Determining Resident Status (2025)
FTB Publication 1100, Taxation of Nonresidents and Individuals Who Change Residency (2025)
California Revenue and Taxation Code sections 17014, 17016, 17041(b) and (i), and 17952