Brazil Tax Reform: How the Dual VAT Model (CBS and IBS) Will Impact e-Invoicing

Brazil passed a sweeping tax reform through Constitutional Amendment No. 132 to simplify and modernize its complex tax system. The reform replaces five existing taxes (PIS, Cofins, IPI, ICMS, and ISS) with two new ones under a Dual VAT model: the federal Contribution on Goods and Services (CBS) and the state/municipal Goods and Services Tax (IBS).

Overview of Brazil’s Tax System

Brazil has one of the most complex tax systems in the world, structured across three levels federal, state, and municipal and governed by specific regulations in 26 states and over 5,000 municipalities. This legislative diversity imposes a significant administrative and tax burden on businesses, particularly in inter-state and inter-municipal operations. The fiscal bureaucracy forces companies to allocate substantial resources to compliance, thereby impacting their competitiveness and operational efficiency.

The reform aims to make the system simpler, fairer, and more transparent, reduce bureaucracy, and enhance transparency in tax processes. It's a crucial step toward correcting structural imbalances and fostering economic growth.

What Does the Tax Reform in Brazil Entail?

With the reform, Brazil will adopt a Dual VAT model, introducing two new taxes: the CBS (Contribution on Goods and Services), at the federal level, and the IBS (Goods and Services Tax), managed by states and municipalities. This system, similar to the GST model used in many countries, aims to simplify tax payments and enhance fiscal transparency. A third tax will also be introduced: the Selective Tax (IS), which will have federal reach and apply to products deemed harmful to health or the environment.

Under this structure, the CBS and IS will replace the Contribution to the Social Integration Program (PIS), the Contribution for the Financing of Social Security (Cofins), and the Tax on Industrialized Products (IPI) at the federal level. Meanwhile, the IBS will replace the ICMS (Tax on the Circulation of Goods and Services, including Interstate and Intermunicipal Transport and Communications) and the ISS (Tax on Services of Any Kind) at the state and municipal levels. Although each tax will be managed independently, all will operate under a common set of rules to ensure coherence within the new system.

Features of the New Dual VAT: CBS and IBS

The new Dual VAT system in Brazil consists of two taxes: the CBS (federal) and the IBS (state and municipal). Both share a set of features designed to simplify tax compliance and promote a more transparent and competitive economy:

• Broad application base: Both taxes will apply to all transactions involving tangible goods, intangible assets, rights, and services, including sales, rentals, licenses, leasing, or service provision.
• Destination-based taxation: The tax is collected in the region where the good or service is consumed, benefiting states and municipalities with higher consumption.
• Immediate tax credit: Any tax paid along the production chain will generate an automatic credit, including for investments and operating expenses such as energy, services, or inputs. This eliminates tax accumulation and lowers costs.
• Unified rules: CBS and IBS will follow common legislation nationwide, simplifying their application and oversight.
• Transparent rates: Each tax will be calculated separately, without being included in its own base or that of the other, enhancing clarity around taxed amounts.
• Fast credit reimbursement: Accumulated tax credits will be returned to taxpayers quickly and efficiently.
• Investment incentive: Investments will allow for immediate recovery of tax credits, encouraging economic development.
• Tax-free exports: Exports will be exempt from taxes, with VAT refunded throughout the entire production chain.
• Equal taxation for imports: Imported goods and services, including digital ones, will be subject to the same rules as domestic products, ensuring fair competition.

Tax Reform Transition Period

The implementation of the new tax system will be gradual, allowing businesses to adapt their fiscal and technological processes without disrupting daily operations. The regulation will be structured through various complementary laws and resolutions that will guide the pace of the transition over the coming years:

• 2025: Publication of complementary laws regulating CBS and IBS, and the beginning of legal and institutional adjustments.
• 2026: Approval of complementary laws targeting special regimes and specific sectors.
• 2027: Start of CBS (Contribution on Goods and Services) collection.
• 2029: Start of the phased collection of IBS (Goods and Services Tax).
• 2033: Complete elimination of current taxes—ICMS, ISS, PIS, Cofins, and IPI—and full consolidation of the new Dual VAT system.

The reform outlines two transition phases. The first will affect the public and take place from 2026 to 2033, during which the old and new taxes will coexist. The second, specific to government entities, will span more years and will be virtually unnoticeable to most taxpayers.

IBS and CBS regulations in Brazil*

On April 30, 2026, the Brazilian Federal Government published Decree No. 12,955, formally approving the regulation of the Contribution on Goods and Services (CBS). Also, the IBS Steering Committee (CGIBS) issued Resolution No. 6, establishing the official regulation for the Tax on Goods and Services (IBS).

Together, these regulations define the operational framework of Brazil’s new Dual VAT tax system, including compliance obligations, special tax regimes, and the common rules intended to ensure consistent implementation across the country.

Starting August 1, 2026, businesses will be required to issue electronic tax documents containing CBS and IBS tax information. As a result, companies must update their layouts, validations, tax rules, and electronic invoicing systems to comply with the new tax reporting requirements introduced by the Brazilian Tax Reform.

The new obligations impact a broad range of fiscal documents: NF-e (Electronic Invoice), NFC-e (Consumer Electronic Invoice), NFS-e (Electronic Service Invoice), CT-e and CT-e OS (Electronic Transportation Documents), BP-e (Electronic Passenger Ticket), MDF-e (Electronic Manifest), NFCom, NF3e, GTV-e y DC-e, and other.

Latest regulatory updates and technical notes

As part of Brazil’s ongoing Tax Reform process, the country continues to advance the implementation of its new Dual VAT model through the publication of regulations and Technical Notes introducing significant changes to electronic tax documents. These updates are designed to modernize Brazil’s tax infrastructure, adapt fiscal systems to the new CBS and IBS framework, and ensure the accurate validation and reporting of tax information across the national e-Invoicing ecosystem.

• Split Payment (Joint Administrative Act RFB/CGIBS No. 2/2026): Authorizes the publication of the technical documentation for the Public Split Payment Platform. This milestone allows companies and technology providers to begin the developments required for the new IBS and CBS tax collection model, which will integrate tax payments directly into transaction financial flows.
• Technical Note 2025.002-RTC v1.40 (NF-e and NFC-e): Establishes new groups, fields, and validation rules related to IBS and CBS within NF-e and NFC-e documents.
• Technical Note 2025.002 (Credit and Debit Notes): Defines the technical specifications for the electronic issuance of Credit Notes (CN) and Debit Notes (DN) through NF-e (Model 55).
• Technical Note 2020.001 v1.60 and SINIEF Adjustment No. 14/2026: Reduce the deadline for recipient acknowledgment in NF-e documents from 180 to 90 days after authorization. This change affects the Confirmation of Operation, Operation Unknown, and Operation Not Performed events.
• Technical Note 2026.001 v1.01 (Signing and Authorization Provider, PAA): Establishes technical guidelines for the Signing and Authorization Provider (PAA), a model that allows electronic signatures and submission of tax documents to be delegated to an authorized provider.
• IBS and CBS Regulations: The Brazilian Federal Government and the IBS Steering Committee (CGIBS) have officially published the regulations governing CBS and IBS, defining the operational rules and compliance requirements of the new Dual VAT system. 
• NT 2025.002 v1.01 (BP-e TA): Establishes the technical foundations of the Electronic Air Transport Ticket and defines its XML structure, validation rules, and associated web services.
• NT 2025.001 v.1.03 (CT-e, CT-eOS, and GTV-e): Introduces new fields and validation rules in the layouts of these electronic transportation documents, aligning them with the tax reform.
• NT 2025.001 v.1.03 (NFCom): Details structural and technical validation changes for the Communication Fiscal Invoice (NFCom) to comply with the new taxes.
• NT 2025.001 v.1.01 (MDFe): Updates the layout of the Electronic Fiscal Document Manifest (MDFe), incorporating validation rules compatible with the reformed model.
• Joint NT 2025.001: Establishes guidelines for adopting the new alphanumeric CNPJ, which will directly affect all issuers of electronic fiscal documents.
• NT 2025.002 v.1.01 (NF-e and NFC-e): Makes adjustments to the layouts of the Fiscal Invoice (NF-e) and Consumer Fiscal Invoice (NFC-e), adding fields and rules that meet the new tax reform requirements.

Electronic Air Transport Ticket (BP-e TA) in Brazil

With the introduction of Technical Note 2025.002 v1.01 (BP-e TA), Brazil’s aviation sector must adapt to the new tax landscape created by the IBS and CBS taxes under the country’s Tax Reform. As part of this transition, airlines will be required to issue the Electronic Air Transport Ticket (BP-e TA), the new electronic tax document designed specifically for passenger air transportation operations.

The BP-e TA modernizes fiscal issuance and tax control processes within the aviation industry by introducing a standardized national electronic model aligned with the new compliance requirements established under Brazil’s Dual VAT framework.

Key features of the BP-e TA include:

• XML-based structure with mandatory digital signature
• Detailed flight, passenger, and tax information, including IBS and CBS amounts
• Automatic document validation with support for events such as cancellation, correction, or document replacement
• Adoption of Brazil’s new alphanumeric CNPJ format

The new model also introduces updated tax fields, validation rules, and specific structures designed to ensure accurate tax reporting, auditability, and end-to-end fiscal traceability for air transport transactions.

Alphanumeric CNPJ in Brazil

Another significant change driven by fiscal modernization is the introduction of the alphanumeric CNPJ, a transformation in the tax identification registry for legal entities in Brazil. This change was announced in Technical Note No. 49/2024, developed by the Federal Revenue Service in collaboration with COCAD (General Coordination of Registration and Tax Benefit Management) and SUARA (Subsecretariat of Collection and Services), and regulated through Normative Instruction No. 2.229/2024.

Although the new CNPJ will retain its current length of 14 characters, its internal structure will differ:

• First 8 characters: Alphanumeric, representing the root of the number.
• Next 4 characters: Also alphanumeric, indicating the order of the registered establishment.
• Last 2 digits: Will remain numeric, serving as check digits.

Currently, the CNPJ is validated using a calculation called module 11, which defines the last two digits. This method will continue to be used in the new format but will be adapted to accept letters. The numeric values of uppercase letters will be derived using the ASCII table, allowing correct validation of alphanumeric characters. This new format will apply exclusively to new CNPJ registrations starting in July 2026. Existing CNPJs will not be changed and will remain valid.

Impact on Businesses and Electronic Invoicing

The tax reform in Brazil marks a profound shift for the business sector. Beyond changing how taxes are calculated, it introduces a new framework requiring companies to restructure internal processes, especially in the areas of technology and tax compliance.

One of the main challenges will be adapting to the Dual VAT system (CBS and IBS), which will require businesses to revise their accounting and tax flows to incorporate new rates, rules, and obligations. This shift will directly impact electronic invoicing systems, which must be updated to align with the new technical structures and validation criteria defined by the tax authority.

Key Impacts on Businesses 

• Operational restructuring: Companies will need to review and adjust internal processes to comply with the new tax model.
• Management system updates: ERPs, accounting, and tax systems will need modifications to accommodate new rules and tax calculations.
• Changes in electronic tax documents: Invoices will need to include new fields and technical structures related to CBS and IBS.
• Altered invoice issuance and reception: Electronic processes will need to be updated to comply with new validation rules and technical standards.
• Tax code revisions: The codes used in commercial operations will require updates.
• Restrictions on tax incentives: Sectors currently enjoying fiscal benefits may face limitations under the new regime.
• Stronger tax oversight: The introduction of new tax categories will enable more precise and automated monitoring by tax authorities.

How to prepare for Brazil’s Tax Reform?

Brazil’s Tax Reform is having a direct impact on corporate tax and technology processes. The implementation of new IBS and CBS requirements requires companies to review systems, processes, and integrations to ensure regulatory compliance and operational continuity.

Adaptation goes beyond updating electronic tax documents. Companies must adjust layouts, validations, tax rules, and invoicing workflows to comply with the new requirements established by the Brazilian tax authorities. Furthermore, the publication of new Technical Notes and regulations requires continuous monitoring of regulatory and technical developments.

EDICOM helps companies manage this transition through a global electronic invoicing and tax compliance platform designed to support the new CBS and IBS requirements.

Our solution enables companies to:

• Adapt formats, validations, and integrations to new tax requirements.
• Automate the issuance and receipt of electronic tax documents.
• Ensure traceability and monitoring of processes.
• Centralize compliance in Brazil and other countries through a single platform.
• Reduce the risk of rejections, errors, and operational disruptions.
• Keep systems continuously aligned with regulatory updates.

The transition to the new tax model requires close coordination between tax, technology, and operational teams. Anticipating testing, validations, and system changes is essential to ensure a smooth and secure transition to Brazil’s Tax Reform.