Brazil Election to Finalize Uncertain Tax Reform, Leaving Companies in Fiscal Limbo

The winner of Brazil’s October 2026 general election will inherit direct responsibility for the final shape and highly sensitive initial phase of the country’s landmark Tax Reform, leaving businesses to navigate a period of significant fiscal uncertainty ahead of the vote. The administration of the newly elected president will govern throughout the most critical years of the multi-year transition, a period that includes the final setting of a key tax rate that has been politically delayed until after the election. This lack of clarity on the final fiscal burden has raised policy risk concerns for all companies operating in the country.

The core of the structural reform, enacted through a Constitutional Amendment in 2023, is the replacement of five existing, highly complex federal, state, and municipal levies—including ICMS, ISS, PIS, and COFINS—with a dual Value-Added Tax (VAT) system, consisting of the federal Contribution on Goods and Services (CBS) and the state/municipal Tax on Goods and Services (IBS). The transition timeline for this new system is set to run from 2026 to 2033. Currently, 2026 is a test year, with the new CBS and IBS operating at a symbolic combined rate of just 1%.

The incoming president, however, will assume office just as this symbolic phase ends and the real financial risk begins. Full implementation of the federal CBS component, along with the new Selective Tax (IS), is scheduled to begin in January 2027. The Selective Tax, a form of excise duty, is designed to target products deemed harmful to health or the environment, such as alcohol and tobacco. The current administration of President Luiz Inácio Lula da Silva opted to postpone the introduction of the specific rate bill for the Selective Tax until after the October Brazil election 2026. This decision was widely reported as an effort to avoid political fallout from a policy that could lead to "more expensive beer" before voters head to the polls, effectively placing a final, critical piece of the nation’s fiscal structure directly into the next administration’s lap.

For multinational companies and local businesses, the presidential race has therefore become a key determinant of their future tax exposure and compliance burden. The next president will oversee the most "operationally demanding" phase of the transition, which involves the full-rate switch from the old system to the new one and the parallel operation of both tax regimes until 2033. The choice of the next executive will directly influence the regulatory philosophy—whether to prioritize revenue collection, economic efficiency, or a more gradual, pro-business adaptation during this hazardous fiscal overhaul. Companies reliant on the final rules of the Selective Tax, such as beverage and tobacco manufacturers, have the most to gain or lose depending on the new government’s approach.

What it touches The high level of policy uncertainty surrounding the final tax burden and the impending, complex regulatory transition contributes directly to Brazil’s country risk assessment. While the structural reform aims to simplify the system long-term, the short-term difficulty of the 2027 operational change and the delayed Selective Tax rates are primary factors for financial professionals analyzing the operational cost and stability of Brazilian assets and supply chains.