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Brazil’s tax reform impact on e-invoicing

While the full implementation of Brazil’s new Dual VAT model will occur gradually, businesses cannot afford to delay preparations. The reform goes beyond simple rate adjustments, requiring companies to fundamentally redesign their tax compliance and technological workflows.

As reported last month, companies will be required to include CBS and IBS information in their e-invoices. Although the values reported during 2026 will be informational only and will not result in actual tax collection, the reporting obligation itself is mandatory.

Failure to include the required CBS and IBS data may expose businesses to a penalty of 1% of the transaction value from 1st August 2026, creating a significant compliance risk for organisations that have not updated their invoicing systems and processes in time.

Impact on businesses and e-invoicing

The transition to a Dual VAT system (CBS and IBS) forces businesses to update their accounting processes to handle new rules, rates, and obligations. As a result, e-invoicing systems must be updated to comply with new technical and validation standards set by tax authorities.

Key areas affected include:

  • Operational processes – Businesses will need to review and adjust internal workflows to ensure compliance with the new tax model. This includes changes to tax determination, reporting procedures, and transaction processing.
  • ERP updates –  ERPs, accounting, and tax systems will need modifications to accommodate new rules and tax calculations.
  • E-invoice changes – Electronic tax documents will need to include new CBS and IBS information, requiring updates to invoice layouts, tax fields, and data structures.
  • Invoice issuance and validation – Companies must ensure that both outgoing and incoming invoices comply with new technical standards and validation requirements.
  • Tax classification reviews – Tax codes and product or service classifications may need to be reassessed and updated to align with the new framework.
  • Increased tax authority oversight – he reform will enable more automated and detailed monitoring of transactions by tax authorities, making data accuracy and invoice compliance more important than ever.

How to prepare

Navigating Brazil’s tax reform requires expertise across tax, technology, and compliance.

If you would like to understand how the reform may affect your business and what steps you should take next, we’d be happy to help. Contact us here.