California Proposal Would Double Rainy Day Fund Cap and Bypass Gann Limit on Tax Refunds
Exempting reserve accounts from the state appropriations ceiling would give Sacramento unprecedented flexibility to manage volatile tax revenues without triggering mandatory rebates.
A proposed change to California’s budget rules would fundamentally alter how the state handles tax revenue spikes, giving Sacramento new authority to stockpile billions of dollars in reserves rather than returning excess funds directly to taxpayers.
The measure targets the mechanics of the Gann Limit, a state appropriations ceiling approved by voters in 1979 during a period of intense anti-tax sentiment following Proposition 13. Under current law, the limit caps annual state spending using a formula tied to population growth and cost-of-living adjustments. When tax proceeds exceed that threshold, the surplus must be split between K-14 education funding and direct taxpayer rebates. Over time, legislative carve-outs have added infrastructure projects and local government allocations as permissible destinations for excess revenue.
Under the newly proposed framework, deposits into the state’s rainy day fund and a short-term reserve known as the Projected Surplus Temporary Holding Account would be exempt from the Gann Limit entirely. Simultaneously, the constitutional cap on the rainy day fund—currently restricted to 10% of general fund proceeds in a given fiscal year—would double to 20%.
The practical effect grants the governor and the Legislature a powerful new lever during boom years. If the spending limit were set at $400 billion and actual revenue reached $410 billion, lawmakers could funnel the entire $10 billion surplus into reserves or direct it toward infrastructure and municipalities. Currently, a significant portion of that overage would be legally mandated to flow back to residents as rebates or into school district budgets.
This proposal arrives as California navigates extreme revenue volatility driven largely by its reliance on personal income taxes paid by high earners, whose capital gains fluctuate wildly with stock market performance. The state has swung from record-breaking surpluses exceeding $100 billion in 2021 and 2022 to severe deficits requiring deep cuts just two years later. Expanding the reserve capacity from 10% to 20% would allow Sacramento to capture far more revenue during market peaks to cushion inevitable downturns.
By contrast, most states maintain rainy day fund caps between 10% and 15% of their general fund expenditures. States like Texas and Alaska rely heavily on dedicated sovereign wealth funds fueled by severance taxes, insulating them somewhat from the income-tax volatility that defines California’s budget cycles. Doubling the cap would position California with one of the largest authorized reserve capacities among major U.S. economies.
The Gann Limit itself has become an increasingly binding constraint. Originally designed to prevent government expansion faster than inflation and population growth, the formula has clashed repeatedly with modern fiscal realities, particularly when progressive tax structures generate sudden windfalls. Previous administrations have relied on creative accounting, accelerated infrastructure spending, and expanded tax credits to stay under the ceiling without triggering mandatory rebates. Exempting reserve accounts removes much of that structural pressure.
Because the rainy day fund cap is enshrined in the state constitution, raising it to 20% requires voter approval, likely placing the measure on an upcoming statewide ballot. Legislative leaders would need a two-thirds majority in both chambers to place the constitutional amendment before voters.
The push to overhaul the Gann Limit coincides with broader debates in Sacramento about long-term fiscal sustainability, as state economists project continued turbulence in personal income tax receipts tied to technology sector valuations through 2026.
