California does not use a day count to decide residency. It asks whether you are in the state for more than a temporary or transitory purpose, and it weighs where the center of your life sits.
California has no bright-line day rule. You are a resident if you are in the state for other than a temporary or transitory purpose, and you stay a resident until your closest connections move elsewhere. A narrow 546-day safe harbor exists for people leaving under an employment contract.
California treats you as a resident if you are present for other than a temporary or transitory purpose, or if you are domiciled in California and only outside it temporarily. In practice, if California is where your life is based, you are a resident, and to stop being one you must show the center of your life genuinely relocated.
When you claim you left, the Franchise Tax Board weighs your connection factors together: where you spend your time, where your homes are and how they are used, where your spouse and children live, where you work, and where your vehicles, licenses, bank accounts, and social ties are. No single factor decides it, but time spent is among the most concrete and most scrutinized.
In an audit the burden is on you to prove the days you were outside the state. A contemporaneous day-by-day log, backed by phone, card, and travel records, is the strongest defense. California audits can reach back several years.
If you are outside California under an employment-related contract for at least 546 consecutive days, you can be treated as a nonresident for that period, provided you spend no more than 45 days in California in any taxable year and your intangible income stays under $200,000 per year. It is built for contract work away from the state, not for retirees or the self-employed. Even here, your California days are counted and the 45-day cap has to be respected.
DayStayed logs where you are automatically, so the "time spent" factor is recorded, not reconstructed.
No. California uses no bright-line day count. It asks whether your presence is more than temporary or transitory and weighs where your closest connections are.
Yes. If your home, family, and job never truly left, a low day count alone will not end residency.
Being outside California under an employment contract for at least 546 consecutive days can make you a nonresident for that period, subject to a 45-day annual cap and a $200,000 intangible-income limit.
Track your days by state automatically and keep an export ready before anyone asks for it.
