Tax Reform: Review of corporate purpose and registered CNAEs
06/10/2026HIGHLIGHTS
Tax Reform | News Release from October 3–9

We are pleased to present our Weekly Tax Reform News Release, created to keep our clients informed about the main changes in legislation, electronic tax documents, and procedures that impact day-to-day operations
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Technical Note published with updates to the National NFS-e layout
Gov.br Portal, October 2, 2026 — The National NFS-e Portal has released version 1.01 of Technical Note SE/CGNFS-e No. 009, which includes changes to the document’s layout. The update also includes Annexes VI and VII, which relate to the layouts and indicators for the IBS and CBS. The date for implementing the changes in the production environment has not yet been announced.
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Methodology approved for calculating IBS and CBS rates on fuels
Joint Ordinance MF/CGIBS No. 14, dated October 2, 2026 - Official Gazette of October 5, 2026 - Approved the methodology for calculating the tax burden used to set the IBS and CBS rates applicable to fuels subject to a specific tax regime. The methodology takes into account both direct and indirect tax burdens and establishes specific rates per unit of measure, differentiated by product. For the CBS, the methodology will take effect in 2027. In the case of the IBS, it will be phased in gradually between 2029 and 2033, reaching 100% of the reference tax burden starting in 2033.
✅ A Smooth Transition
Domingues e Pinho Contadores supports businesses in their transition to the Tax Reform. Count on our team to help you plan actions that ensure compliance and to guide your company in adopting best tax practices.
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