Brazil’s new CBS and IBS indirect tax framework

Brazil is replacing its current indirect tax system with a new dual VAT, and has now published the detailed rules for how it will work. The new framework is made up of two taxes: CBS, a federal contribution replacing PIS and Cofins (Brazil's existing federal indirect taxes), and IBS, a state, Federal District and municipal tax replacing ICMS and ISS (Brazil's existing state and municipal indirect taxes).

The implementing rules were published as Decree No. 12.955/2026, which regulates CBS, and CGIBS Resolution No. 6/2026, which regulates IBS. Together, they are particularly significant for non-resident suppliers and digital platforms, expanding the circumstances in which cross-border digital, remote and intangible supplies consumed in Brazil fall within the new tax framework.

Two points stand out as the most consequential shifts:

• Foreign platforms become responsible for the CBS and IBS on the transactions and imports they intermediate. The exact mechanics of this liability depend on the underlying seller's location. This is a meaningful reallocation of risk to the platforms.
• A much wider population of foreign suppliers now falls within Brazilian tax scope. New place-of-supply rules bring remote services, digital supplies and intangibles into the framework when consumed in Brazil.

Compliance is embedded into Brazil's electronic fiscal-document system, adapting existing documents (NF-e, NFC-e, NFS-e, CT-e) and introducing new ones, including the Declaração de Regimes Específicos (DeRE), a new declaration for taxpayers under specific regimes. The rules also establish a split-payment mechanism, under which payment service providers segregate and remit CBS and IBS at the point of financial settlement.

CBS and IBS implementation timeline in Brazil

Operational compliance begins on 1 August 2026. From that date, the new registration framework and general electronic fiscal-document obligations take effect.

Importantly, 2026 remains a transition year. CBS/IBS assessments during 2026 are informational only and carry no tax effect, provided the required ancillary compliance obligations (registration and electronic fiscal-document issuance) are met. The regulations also include a 60-day cure mechanism: where an infraction notice is issued during 2026 for an ancillary obligation, the taxpayer has 60 days to correct the omission, and timely correction extinguishes the penalty.

The practical implication: businesses need to be operationally ready by 1 August 2026, but financial tax exposure does not begin until 2027, provided registration and invoicing obligations are in place.

From 2027 onward, the regime moves into broader operational implementation, with CBS and IBS rates and transition rules applying progressively.

Impact of Brazil’s CBS and IBS rules on digital platforms and foreign suppliers

For businesses operating digital platforms or making cross-border supplies into Brazil, the regulations introduce significant new compliance considerations.

Key changes under Brazil’s CBS and IBS regulations:;

Place-of-supply rules for remote services and digital supplies in Brazil

‍Remote services, digital supplies and intangibles may fall within the Brazilian tax framework where the acquirer or recipient is domiciled in Brazil, or where consumption occurs in Brazil under the import rules. This significantly broadens the universe of foreign suppliers with potential Brazilian tax exposure.

Digital platform liability for CBS and IBS in Brazil

Digital platforms, including those domiciled abroad, are responsible for CBS and IBS on transactions or imports carried out through them. Where the underlying supplier is foreign, the platform is responsible, in substitution for that supplier, jointly with the Brazilian acquirer or recipient. Where the supplier is domestic, platform liability generally arises if the supplier fails to meet fiscal-document obligations, the transaction is not recorded in a fiscal document, or the platform fails to meet reporting obligations.

Brazil platform reporting requirements for CBS and IBS

Platforms must report information on operations and imports carried out through them, including identification of the underlying supplier even where the supplier is not itself a taxpayer. Format, channel, timing and technical mechanics remain subject to a future RFB/CGIBS joint act.

Registration requirements for foreign digital platforms in Brazil

‍Foreign digital platforms liable for CBS or IBS must register through the CNPJ (Brazil's tax identification system) before beginning activities. There is no general registration threshold for foreign platforms. Foreign suppliers may also have registration obligations where they qualify as taxpayers or responsible parties under the rules.

Fallback CBS and IBS collection rules for unregistered suppliers

‍If a foreign supplier or platform is not registered under the regular regime, CBS and IBS will be collected at reference rates by the institution carrying out the foreign-exchange remittance to that supplier or platform.

Electronic fiscal-document requirements under Brazil’s CBS and IBS system

‍CBS/IBS compliance relies on electronic fiscal documents, including existing formats (NF-e, NFC-e, NFS-e, CT-e) and new document types created for the new system. For imports of services and intangibles, a future RFB/CGIBS joint act may require the Brazilian importer to issue a fiscal document. The regulations also contemplate consolidated fiscal documents in certain platform scenarios, with detailed rules still pending.

Split-payment requirements for CBS and IBS transactions

‍Where a platform is the payment originator, it may need to provide the information required for CBS/IBS segregation and collection through split payment, where split payment is available for the payment method used.

Additional Brazil CBS and IBS guidance still pending

‍Additional RFB/CGIBS joint acts are expected for platform reporting, fiscal-document layouts, consolidated fiscal documents, foreign-trade rules, split-payment mechanics, registration procedures and compliance programmes.

What Brazil’s CBS and IBS changes mean for businesses

Businesses supplying digital services, intangibles or goods into Brazil - or intermediating transactions through digital platforms - should be asking themselves three core questions:

Can your business identify Brazilian customers for tax determination?

Can our systems reliably capture acquirer location and customer status (consumer vs. business) to determine Brazilian taxation?

Can digital platforms report all underlying sellers in Brazil?

Identifying and reporting on each seller transacting into Brazil - including non-taxpayer sellers - is now a platform obligation, not a seller-only one.

Are your invoicing and payment systems ready for Brazil’s CBS and IBS infrastructure?

CBS/IBS compliance runs through Brazil's electronic fiscal-document and split-payment systems. ERP, tax engine, and payment integrations need to be assessed against these requirements.

The immediate priority is operational readiness for 1 August 2026, while monitoring further implementing guidance through the remainder of 2026. Further RFB/CGIBS joint acts are expected throughout the year, and businesses with Brazilian exposure should track these closely as the technical mechanics are finalised.

Sources

• Decree No. 12.955/2026 - federal CBS regulation
• CGIBS Resolution No. 6/2026 - state, Federal District and municipal IBS regulation