How does the FTB evaluate a claimed change of residency out of California?

The framework: domicile, temporary or transitory purpose, and the presumptions

Residency analysis runs on two linked concepts. Domicile is the long-term concept: the one location with which a person has the most settled and permanent connection, and it changes only when the taxpayer both physically arrives in the new place and intends to remain there indefinitely. Residency is the year-by-year concept: presence in or absence from California for a temporary or transitory purpose (Cal. Code Regs., tit. 18, section 17014). A California domiciliary who leaves for a vacation, a season, a short project, or a stay of indefinite but short expected duration remains a California resident; the regulation treats business or employment that "will require a long or indefinite period" differently, as an absence for other than a temporary purpose (Cal. Code Regs., tit. 18, section 17014(b)). The regulation's touchstone is whether the taxpayer's connections place the person in the state for other than temporary purposes, and the closest connections comparison is how that question is answered when presence is split between states.

Two statutory rules put weight on the scale. Section 17016 presumes that an individual who spends more than nine months of a taxable year in California is a resident; the presumption may be overcome by satisfactory evidence of a temporary or transitory purpose, and the taxpayer carries that burden. The converse does not hold: fewer than nine months in California does not by itself make a person a nonresident (Cal. Code Regs., tit. 18, section 17016). And section 17014(d) supplies the one bright-line rule: a California domiciliary outside the state under an employment-related contract for an uninterrupted period of at least 546 consecutive days is treated as outside California for other than a temporary or transitory purpose. Return visits to California "totaling in the aggregate not more than 45 days during a taxable year, shall be disregarded," and the rule does not apply if the taxpayer has intangible income exceeding $200,000 in any taxable year in which the contract is in effect, or if the principal purpose of the absence is to avoid tax. The rule has limits in the other direction too: in Appeal of Mazer, 2020-OTA-263P, a 13-month foreign employment absence under a two-year contract left the taxpayer a domiciliary and a resident. Outside that rule, everything is facts. That structure is what makes California a presumptive residency state. In a statutory residency state such as New York, a taxpayer who maintains a permanent place of abode in the state and spends more than 183 days there is a resident by force of the statute, alongside a separate domicile test (Tax Law section 605(b)(1)(A), (B)). In California, the day counts only raise presumptions, and the whole record decides.

The burden of proof

The Franchise Tax Board's residency determination is presumed correct, and the taxpayer must show error by a preponderance of the evidence; the burden of proving a change of domicile rests on the party asserting it (Appeal of Bracamonte, 2021-OTA-156P; Appeal of Beckwith, 2022-OTA-332P; Cal. Code Regs., tit. 18, section 30219(a), (b)). Domicile is presumed to continue until a change is shown, so a record that leaves the question in doubt favors the old domicile (Franchise Tax Board, Residency and Sourcing Technical Manual section 2500). Fraud penalties are the exception: there the burden is on the agency, by clear and convincing evidence (Cal. Code Regs., tit. 18, section 30219(c)). That allocation explains much of what follows. A taxpayer who leaves California is the party asserting the change, and the paper trail is the evidence that has to carry it.

The Bragg factors: what the comparison weighs

Appeal of Stephen D. Bragg set out a nonexclusive list of factors that "serve merely as a guide," with the weight of each depending on "the totality of the circumstances" (2003-SBE-002). The Office of Tax Appeals groups them into three families (Appeal of Bracamonte, 2021-OTA-156P; Appeal of Housman and Pena, 2022-OTA-375P). First, the registrations and filings: where the taxpayer holds a driver's license and registers vehicles, where the taxpayer is registered to vote, the address used on federal and state tax returns and other legal documents, and where professional licenses are maintained. Second, the personal and professional associations: the location of employment and business interests, the physicians, dentists, accountants, and attorneys the taxpayer visits, and church and club memberships. Third, physical presence and property: the comparative size, value, and use of homes in each state, where the taxpayer's spouse and children live and where the children attend school, where the taxpayer's days are spent, and where financial transactions originate, including the banks and brokers where accounts are serviced.

No single factor controls, and the list is expressly nonexclusive. What the factors reward is a real move: the taxpayer who sold or leased out the California house, moved the family, changed the license and registration and voting rolls in the first weeks, hired new professionals in the new state, and can show a calendar dominated by the new state has little to fear from the comparison. What the factors punish is the paper move: the new-state apartment held alongside the fully furnished California home, the family still in the California house, the same California doctors and dentists, and a day count that never changed.

Hyatt: the anatomy of a contested move date

One of the best-known residency disputes in California history turned on these mechanics. Gilbert Hyatt, an inventor whose microprocessor patent began generating enormous licensing income, moved from California to Las Vegas in late 1991, as the income was beginning to arrive. His 1991 part-year return reported that he ceased to be a California resident as of October 1, 1991; the Franchise Tax Board concluded he had not moved to Nevada until April 1992 (Franchise Tax Board v. Hyatt (2003) 538 U.S. 488; Franchise Tax Board v. Hyatt (2019) 587 U.S. 230). It assessed tax for 1991 and 1992 with fraud penalties after an audit that, as the Nevada Supreme Court described it, included letters to banks, utility companies, and newspapers seeking information about him (Franchise Tax Board v. Hyatt (2014) 130 Nev. 662).

The dispute has run for more than three decades, spawning collateral litigation that reached the United States Supreme Court three times on the question of whether Hyatt could sue the Franchise Tax Board in Nevada courts for its audit conduct (the last round, Franchise Tax Board v. Hyatt (2019) 587 U.S. 230, ended that suit on sovereign immunity grounds). On the tax itself, the Board of Equalization heard the residency case in a marathon public session in August 2017 and mostly ruled for the taxpayer: it found Hyatt became a nonresident and nondomiciliary of California on October 20, 1991, which made him a nonresident for all of 1992, found his 1992 licensing income was not California-source income, though licensing income received in the last weeks of 1991, after the move, was California-source and taxable; and rejected the fraud penalties. The Office of Tax Appeals denied the Franchise Tax Board's petitions for rehearing in January 2019 (OTA Case Nos. 18010244 and 18010245), leaving those results standing.

The last chapter concerned 1991 alone. After paying the 1991 balance, including a post-amnesty penalty of $1,575,731.83, Hyatt claimed a refund of $11,372,224. In a nonprecedential opinion, the Office of Tax Appeals sustained the denial except for interest the Franchise Tax Board agreed to abate (Appeal of G. Hyatt, 2026-OTA-446). It held that Revenue and Taxation Code section 19777.5(e) allows a refund claim for that penalty only on the ground that it was not properly computed, so Hyatt could not attack it for lack of written supervisory approval under section 19187(b). It also held that it lacked jurisdiction over his constitutional arguments, and Hyatt conceded that res judicata barred relitigating sourcing. The post-amnesty penalty reaches only liabilities eligible for California's 2005 amnesty, so it is a lesson from the Hyatt saga rather than an exposure in a current residency audit, and the opinion is nonprecedential.

The practitioner lessons cut in both directions. The taxpayer won on 1992 and on the fraud penalties but lost the 1991 sourcing issue, and the Board of Equalization still found a move date nearly three weeks later than the October 1, 1991 date on his return, a reminder that the claimed date and the proven date are different things. The proof cost him decades, an audit of extraordinary intrusiveness, and litigation on three fronts. A cleaner contemporaneous record at the moment of the move, the unglamorous week-one work of licenses, registrations, mail, and accounts, is worth more than any amount of after-the-fact reconstruction.

What the audit looks like

A residency audit is a documents exam. The Franchise Tax Board has statutory power to demand records from the taxpayer and from third parties such as banks (Rev. and Tax. Code section 19504(a)), and in a residency examination it can request credit card and bank statements for the full period, phone records, calendars and travel records, escrow and lease documents for every residence, utility bills, moving company invoices, and the registration and filing changes described above. The examiner reads them for geography: where the charges cluster, where the phone was, where the weekends went. A year of card statements can reconstruct a life in some detail. The day count matters, and part-year returns must allocate income around the change date, with California-source income remaining taxable to nonresidents after the move under the sourcing rules (Rev. and Tax. Code section 17041(b), (i)). A recent opinion illustrates the line: after a December 2015 move to Nevada, severance and medical premiums paid in 2016 were not California-source, while restricted stock units that vested on December 31, 2015 for California services were (Appeal of Otting, 2026-OTA-403P, pending precedential).

For a taxpayer with a liquidity event on the horizon, the sequencing question, whether the move is complete before the income recognition event, is the whole ballgame, and it is tested against the record as it existed on the dates in question, not against intentions. In Noble v. Franchise Tax Board (2004) 118 Cal.App.4th 560, the taxpayers claimed a move to Colorado effective March 1, 1994 and sold securities on March 7 and March 25; the Franchise Tax Board held them residents through July 15, 1994, and the Court of Appeal affirmed, treating physical presence as "a factor of greater significance than the mental intent or outward formalities of ties to another state." In Appeal of Bracamonte, 2021-OTA-156P, a Nevada apartment, voter registration, licenses, and bank accounts did not defeat residency on the July 18, 2008 date of a stock sale, where the taxpayers spent 90 days in California against 28 in Nevada and 19 in Arizona over the relevant period; the Franchise Tax Board itself conceded a change of domicile only as of September 29, 2008. And in Appeal of Beckwith, 2022-OTA-332P, the Office of Tax Appeals found a change of domicile into California earlier than the taxpayer conceded, treated his later time in Tennessee as temporary, and taxed the redemption.

Limitations and procedure

When a return is filed, the Franchise Tax Board generally has four years from the filing date to mail a notice of proposed assessment (Rev. and Tax. Code section 19057(a)), or six years if the return omits income in excess of 25 percent of the gross income it states (Rev. and Tax. Code section 19058(a)). A former resident who files no California return for the year of the move leaves that year open, because where no return is filed the Franchise Tax Board may require a return or estimate income and propose an assessment at any time (Rev. and Tax. Code section 19087(a)). A notice of proposed assessment may be protested within 60 days (Rev. and Tax. Code section 19041), and the notice of action on the protest may be appealed to the Office of Tax Appeals within 30 days (Rev. and Tax. Code section 19045). A refund claim is due by the later of four years from a timely filed return, four years from the return's due date, or one year from the overpayment (Rev. and Tax. Code section 19306(a)). On the penalty side, failure to file carries 5 percent of the tax per month, up to 25 percent (Rev. and Tax. Code section 19131(a)), and failure to file or furnish information after a demand carries a further 25 percent (Rev. and Tax. Code section 19133).

Practice notes

The recurring failure is the split life: the taxpayer who leaves economically but not personally, keeping the California home, the California family patterns, and the California professionals while claiming a new state. The Bragg comparison is unforgiving there, and a taxpayer who spends more than nine months of the year in California is presumed a resident and must rebut that presumption with satisfactory evidence of a temporary or transitory purpose, while fewer than nine months proves nothing on its own. The move that survives audit is front-loaded, documented in its first month, and consistent across every registration a state agency can query. Timing should be planned against income events with margin, not precision; a move date that must be right to the week to work is a move date an examiner will contest, as Noble and Bracamonte show. Where the facts are already mixed, a protective analysis of the sourcing rules matters as much as the residency claim itself, since Hyatt owed nothing for 1992 both because he was a nonresident and because the income was not California-source, while post-move licensing income in 1991 remained taxable as California-source income. The 546-day employment contract rule, where it fits, converts the entire factual fight into a day count, which is why it is the first thing to check, though its conditions are narrow. Filing a part-year or nonresident return for the move year starts the four-year assessment period, which a missing return never does. Finally, if Proposition 40 on the November 3, 2026 ballot is adopted, the 2026 Billionaire Tax Act would impose a one-time tax of 5 percent of net worth on individuals with net worth of one billion dollars or more who were residents of California within the meaning of Revenue and Taxation Code sections 17014 and 17015.5 as of January 1, 2026 (proposed Revenue and Taxation Code sections 50301 and 50308(a), (n)), so the residency analysis described here would also decide that tax. G&G State Tax Group provides change-of-residency planning and residency audit representation alongside its state and local tax practice.