A 1996 federal law (4 U.S.C. § 114) blocks California from taxing any 401(k) or pension income once a retiree establishes Nevada residency. RSUs, stock options, and California rental or property gains remain taxable by California even after the move. The pension moves, but the dirt does not.
California's Franchise Tax Board audits residency aggressively, so retirees must sell the home, re-register vehicles, switch voter registration, and stay under 183 days in-state. Two retirees, same $1 million, same 4% rule, buy one finished with $1.4 million, the other hit $0 in 12 years. Our free reader guide explains the flaw that separated them, and the income-first method built to avoid it.
A retired software engineer sells the Bay Area house, buys in Henderson, and starts drawing $9,000 a month from a 401(k) built entirely in California. California's Franchise Tax Board sends nothing. Not a bill, not a notice, not a claim on a dollar of it.
That result is federal law, written specifically because California and a handful of other high-tax states spent years trying to tax retirees who had moved away. The rule lives at 4 U.S.C. § 114, enacted by Public Law 104-95 in January 1996. In plain English: no state may impose income tax on any retirement income of an individual who is not a resident or domiciliary of that state.
Congress acted because California, New York, and others were auditing former residents and demanding tax on pensions earned inside their borders, sometimes decades after the retiree had moved. Retirees in Nevada, Florida, and Arizona were getting billed for wages they had already been taxed on once. The 1996 statute killed that theory for qualified retirement income.
Once you are a resident somewhere else, the old state's claim ends. Every retiree knows about the 4% rule, but it frames retirement as a slow liquidation and still causes retirees with seven-figure accounts to agonize over a dinner out. There's a different way to run the math that makes more sense today.
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