California's Proposition 13 (1978) caps property tax increases at 2% annually until resale, drastically limiting local revenue. While it applies only in California, its ripple effects have shaped tax reform debates nationwide.
Prop 13 is state law—other states are not bound by it. Each state sets its own property tax rules under its constitution.
State constitutions, economies, and voter preferences differ wildly. What works (or fails) in California may not translate elsewhere. States craft independent solutions—some embracing assessment caps, others relying on circuit breakers or homestead exemptions.
Bottom line: Prop 13 didn't force changes elsewhere, but it certainly sparked conversation.