California Residency and Taxes: What the FTB Looks For When You Leave the State
A Complete Guide to Establishing Non-Residency and Avoiding FTB Audits
Every year, thousands of Californians relocate to states with lower—or no—income taxes. Nevada, Texas, Florida, Arizona, and Washington have become popular destinations for individuals and business owners seeking relief from California’s top marginal rate of 13.3%, the highest state income tax in the nation.
But here’s what many departing residents don’t realize: simply moving to another state doesn’t automatically end your California tax obligations. The Franchise Tax Board (FTB) aggressively pursues former residents who claim to have left but maintain significant ties to California. These residency audits can result in years of back taxes, substantial penalties, and interest charges that dwarf any savings the move was supposed to provide.
As an Enrolled Agent based in Whittier, Los Angeles County, I work with clients across the country—and around the world—who face FTB residency challenges. Some come to me after receiving audit notices. Others are planning their departure and want to do it right from the start. In both cases, understanding exactly what the FTB looks for is essential to protecting yourself.
This guide explains California’s residency rules, the specific factors the FTB examines, and the steps you can take to establish clean non-residency when you leave.
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