Brazil Sales Tax Proposal Threatens World’s Highest 30% VAT

The ongoing overhaul of Brazil's consumption tax system could affect companies operating in the country, including those held in emerging-market funds. A regulatory proposal approved by Brazil's Federal Audit Court (TCU) on October 28, 2026, has calculated a higher-than-expected reference rate for the country's upcoming federal consumption tax.

The TCU, which acts as an independent government watchdog overseeing federal public spending, approved an 11.3% reference rate for the Contribution on Goods and Services (CBS). This new federal levy is scheduled to take effect in 2027 to replace existing social contributions on corporate revenue. The court's calculated rate is higher than the 9.21% previously estimated by the government's tax reform management committee.

If the federal rate remains at 11.3%, the total dual value-added tax (VAT) could reach 30%, based on current state and municipal tax (IBS) projections of roughly 18.7%. This combined rate would surpass Hungary’s 27% rate to become the highest sales tax percentage in the world.

The Mechanics of the Reform

The reform is designed to simplify one of the world's most complex tax codes by consolidating five cascading federal, state, and municipal taxes into two main levies: the federal CBS and the local IBS. Under the rules of the constitutional amendment, the TCU is tasked with calculating a reference rate that keeps federal tax revenues neutral relative to historical levels.

Because of a wide range of sector-specific exemptions and tax-credit rules carved out during legislative negotiations, the court determined that a higher base rate is necessary to prevent a drop in federal revenue. The proposal will be formally delivered to the Federal Senate, which has until December 15, 2026, to approve the rate or negotiate adjustments. If the Senate fails to act by the deadline, the court's 11.3% rate will take effect automatically on January 1, 2027.

Corporate Margins Under Pressure

For international businesses, the prospect of a 30% sales tax rate, based on current IBS projections, raises concerns about corporate margins and consumer demand. While the VAT is designed to be non-cumulative—allowing companies to claim credits on taxes paid earlier in the supply chain—the transition process is expected to create administrative friction and cash-flow bottlenecks.

Service-sector companies, financial institutions, and consumer-facing brands are particularly exposed. They generally have fewer physical inputs to generate offsetting tax credits, meaning a larger portion of the tax increase could fall directly on their bottom lines or force price hikes that depress consumer spending.

Market Exposure

Large financial institutions like Itaú Unibanco and consumer-sensitive companies operating in Brazil must now model their 2027 cash flows around a higher-than-expected tax baseline. US-listed exchange-traded funds focusing on Latin American equities or diversified emerging markets provide exposure to these large-cap Brazilian corporations, which are now navigating the operational transition to the dual VAT system.