Why Did California’s Tax Board Just Send Me a Residency Audit Letter?

The California Franchise Tax Board completed 520 residency audits on out-of-state individuals in 2023 alone, more than double the 230 it ran in 2019. So if you moved to Las Vegas, filed a change-of-address form, and figured that was the end of it, that letter in your mailbox says otherwise. It’s just the FTB doing more of what its own numbers show it’s already doing.

Didn’t I already establish residency when I moved?

You bought a house. You got a Nevada driver’s license. You told everyone you were a Nevada resident now.

None of that is what the FTB is actually asking about.

California doesn’t treat residency as a single event that happens on closing day. It treats residency as a status you have to keep proving, continuously, against a specific legal standard. Buying a home in Las Vegas proves you own property in Nevada. It doesn’t prove California has let go of you.

What does California actually look at?

The FTB runs what’s called a “close connection” test, and it’s more invasive than most people expect. An auditor doesn’t take your word for it. They reconstruct your actual life: which home you spend more nights in, whether your kids go to school in Nevada or California, which state’s doctor you see, where your bank statements land, whose voter rolls you’re still on.

Picture someone holding a Nevada home but still carrying a California license. Still registered to vote there. Still driving a car plated in Los Angeles. Still spending a third of the year back at a place they never sold.

No single fact like that proves anything on its own. Stacked together, they’re the exact pattern the FTB builds a case from. The audit letter shows up when enough of that pattern is visible from the outside.

Doesn’t physical presence in Nevada settle it?

Physical presence matters enormously. But it has to hold up on both sides of the equation, not just the Nevada side.

Nevada’s own legal standard spells out the physical-presence requirement directly. Under NRS 10.155, legal residence in Nevada is wherever you’ve actually been physically present during the claimed period, and it starts the day that presence starts, not the day a lease gets signed.

That cuts both ways. Nevada residency is real once you’re actually living there. But California can also point to every day you weren’t physically in Nevada, every month spent back at a property you still hold in Los Angeles, every season split in a way that never fully committed to one state. All of it reads as evidence the move was never finished.

How do I actually fix this?

A defensible residency file needs both halves working together: documented intent and physical presence that holds up under scrutiny. Not one or the other.

This comes down to whether the whole picture points one direction, not any single document. Voter registration. Car plates. Your bank’s mailing address. Your doctor’s office. The school your kids walk into every morning. Each one is small alone, but an auditor reads them as a set.

The strongest files start the day the move starts, not the day a question arrives. Keep dated proof of the new lease or deed. Every updated registration. A real log of which nights you actually slept where. And if a business still runs out of California, that’s the loose thread the rest of your case unravels on, so close it or relocate it before the paperwork has to argue around it.

None of this is exotic. It’s the difference between a move that looks complete on paper and one that actually survives an audit.

No exit tax exists in California law. What the FTB is chasing is simpler than that: the gap between people who say they left and people whose lives show they actually did. A real estate transaction handled by someone who understands what out-of-state buyers actually need to get right starts closing that gap the day the house search begins, not after the audit letter arrives.