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Tax Pills #01: The Regulations Have Arrived — Now What?

May 18, 2026

Tax Pills: Agribusiness and Tax Reform

 

Overview | Publication of Regulations

Last week, two documents definitively changed the tax landscape for those who produce in the agricultural sector. The IBS Regulation — published through CGIBS Resolution No. 6 of 2026 — and the CBS Regulation — established by Decree No. 12,955 of 2026 — were released with more than 500 articles each, detailing how the Tax Reform will work in practice from now on.

For those following the reform from afar, it may seem like just another acronym, another decree. But for rural producers, cooperatives, meatpacking plants, and the entire Brazilian agribusiness sector, these two documents represent the biggest transformation of the tax system in decades—and it's already in effect.

 

What are IBS and CBS?

The IBS, Tax on Goods and Services, will replace two taxes that currently fragment the rules across the entire country: the ICMS (Tax on the Circulation of Goods and Services) charged by the states and the ISS (Tax on Services) charged by the municipalities. Each state had its own table, agreements, and specific exemptions for agriculture. Over decades, this created a labyrinth where the same sale of cattle could have completely different tax treatment in Mato Grosso, Minas Gerais, or Rio Grande do Sul. The IBS eliminates this mosaic. One rule. National. Uniform.

The CBS, or Contribution on Goods and Services, replaces the PIS and COFINS. These two federal taxes have always had distinct regimes—cumulative for some companies, non-cumulative for others—generating decades of litigation and legal uncertainty. The CBS unifies everything into a single contribution, with a clear debit and credit logic.

 

Why does this matter to the rural producer?

Brazilian agribusiness has entire chapters dedicated to it in both regulations. Reduced tax rates for raw products, deferral in the input supply chain, presumed credit for buyers from non-contributing producers, a specific regime for cooperatives, and rules specific to individual rural producers—dozens of articles are designed specifically for those who work in agriculture and livestock farming.

But note: the regulations are already in effect. This means that the options, registrations, classifications, and obligations that depend on these rules need to be analyzed now — not in 2027, not in 2033. Today.

The transition to the new system extends until 2033, but several obligations are already enforceable in 2026. Producers who billed R$ 3.6 million or more in 2024 have been contributing to the IBS and CBS since the first day of January of this year — without the need for any prior notice or notification.

 

What's next?

Over the next few weeks, this series of short articles will cover each topic relevant to agribusiness: the taxation of livestock, agriculture, inputs, individual farmers, transactions between individuals and legal entities, cooperatives, accumulated credit, litigation risks, and the transition schedule. The goal is simple: to transform a regulation with hundreds of articles into language that makes sense within the farm gate.

 


Save this post. Share it with your production team. And follow the series — because what's coming next is too important to ignore.

 

If you have any questions about the topics covered in this publication, please contact any of the lawyers listed below or your usual Mazzucco&Mello contact.

João Paulo Toledo de Rezende

+55 11 3090-9195

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