São Paulo Voters Decide Utility Rate Caps Affecting 8.2 Million Households

The São Paulo city referendum scheduled for 15 July will put before voters a ballot measure that caps annual rises in water and electricity tariffs at the official inflation rate through 2028. The proposal, placed on the ballot by a citizen petition with 420,000 signatures, would override the current formula used by the municipal utilities authority that permits adjustments based on operational costs and investment needs.

Why the vote arrives now

Utility charges have climbed faster than wages for three straight years, according to the 2025 São Paulo municipal budget execution report. Average monthly spending on combined water and electricity services reached 462 reais per household last year, up from 398 reais in 2023. City officials note that the existing adjustment mechanism has added an average of 9.4 percent annually since 2022, outpacing the 5.1 percent average wage growth recorded by the state statistics agency for formal workers in the metropolitan area.

Residents in districts such as Capão Redondo and Itaquera would see the clearest difference if the cap passes. A typical two-bedroom apartment there currently pays 385 reais combined; under the proposed limit the same bill would rise by no more than the projected 4.2 percent inflation rate for 2027, rather than the 11 percent previously scheduled. The change would apply only to the regulated portion of bills, leaving market-driven portions such as consumption above the basic allowance untouched.

Budget effects for local families

Policy analysts at the state-funded Fiscal Responsibility Observatory calculate that the cap would reduce cumulative utility outlays by 1,180 reais per household over the two-year period covered by the measure. That figure assumes continued average consumption and no change in the number of residents per dwelling. The same analysis shows the largest absolute savings would accrue to middle-income families in the 4,500 to 7,000 reais monthly income bracket, who spend 8 to 11 percent of take-home pay on these services.

The legislation states that any shortfall in utility revenue would be covered first by reallocating existing municipal reserves earmarked for infrastructure maintenance, then by a temporary levy on commercial and industrial accounts. City budget documents released in May project that reserves stand at 2.3 billion reais, sufficient to absorb the estimated 780 million reais revenue gap for 2026 and 2027.

Ballots will also include an advisory question on whether the city should publish quarterly consumption reports broken down by district. If approved, the reports would be posted on the municipal transparency portal within 45 days of each quarter end. The full referendum results are expected to be certified by the electoral court within ten days of the vote, after which the winning provisions would take effect on 1 January 2027.