
Published Wednesday, 28 October, 11:20 a.m. ET · Source: Federal Audit Court, Federal Senate
Key Facts
- The number. Brazil’s audit court proposed 11.3% for CBS, the new federal sales tax, in 2027.
- The gap. A committee estimate in July was 9.21%, so the court’s figure is about two points higher.
- Next step. The Senate has until 15 December to confirm or change it; if it stays silent, the court’s rate applies.
- Still unknown. Whether senators will change the rate, and how much prices will rise.
Brazil just learned how much its new national sales tax could cost, and the number is higher than earlier estimates. On Wednesday, 28 October, the Federal Audit Court (TCU), the state body that checks public finances, proposed that the new federal tax called CBS be 11.3% in 2027.
CBS stands for Contribution on Goods and Services, the federal half of the two new value-added taxes that replace five older taxes. Together with its state-and-city partner, IBS, it replaces older levies, and the federal CBS takes over PIS and Cofins (two federal taxes on company revenue), a tax on insurance transactions and part of a tax on manufactured goods.
The reform law charged the court, whose rapporteur on the case was Vital do Rêgo Filho, with calculating the rate.Why does a federal audit court set a tax rate?Because the reform law gave the court the job of calculating the rate, with the aim of keeping the federal tax take on consumption in line with the old taxes.The Senate can then confirm or change it, and the result matters for Brazil’s economy because it shapes what every Brazilian shopper and company pays.
Why 11.3% Looks High
Earlier estimates were far lower. In July, the committee that manages IBS, the companion tax for states and cities, estimated the CBS rate at 9.21%.
The gap is about two percentage points on every sale. The court’s figure is also its own calculation, not a final decision.
What the Court Also Decided
- The rate: 11.3% proposed for 2027.
- Government purchases: a 44.2% reduction factor for buying by public bodies.
- The deadline: the Senate has until 15 December 2026 to fix the final rate.
The 44.2% reduction applies to purchases by government bodies. It means the state pays a lower effective rate on what it buys.

What Happens Next in the Senate
The court forwards its calculations to the Senate by the end of this week. Senators then have until 15 December to confirm the rate or write their own.
If they do nothing, the court’s 11.3% applies. That default gives the court’s number real weight.
The 2027 federal budget projects that CBS will raise R$636.8 billion (about US$119 billion at R$5.33 per US dollar) in 2027. That is the sum the rate is meant to deliver.
What It Means for US Readers
For American investors holding Brazilian shares, the rate is a cost question. A higher CBS can raise prices and squeeze margins for retailers and service companies, while the exact effect on each sector is not yet clear.
For US companies selling in Brazil and for expats paying local bills, the 2027 price tags will reflect this number. Our real-to-dollar guide and Brazil stock market guide show how the real and local shares have reacted to fiscal news.
What Is Not Known
No market reaction to the announcement had been reported at the time of writing. It is also unclear how senators will vote, and how much of the 11.3% companies will pass on to customers.
The rate is also due to be recalculated during the transition years. So 11.3% is the proposal for 2027, not necessarily the final word on the tax.
Sources
Federal Audit Court (TCU), tax reform page · Federal Senate, CBS rate report
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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Frequently Asked Questions
What is the CBS tax in Brazil?
CBS is the Contribution on Goods and Services, a new federal consumption tax. It replaces PIS and Cofins (federal taxes on company revenue), a tax on insurance transactions and part of the tax on manufactured goods.
When will the 11.3% rate take effect?
It applies from 2027 if the Senate confirms it or does nothing by 15 December 2026. The Senate may still change the rate before then.