Split Payment: How BTO Can Accelerate the Adaptation of Processes and Systems

Split payment is not just another ancillary tax obligation to be addressed at month-end. It represents a fundamental change that occurs at the moment a transaction is settled, in real time. The payment system automatically segregates IBS and CBS taxes as soon as the transaction is completed, before the net amount is credited to the supplier's account.

This means there is no "adaptation period" in the traditional sense. The system will operate this way from the moment it becomes effective. Companies that do not have the necessary processes and systems ready will simply be operating incorrectly, in real time, every day.

• What is split payment? A mechanism through which the payment system itself, including Pix, bank slips, and transfers, automatically segregates and collects IBS and CBS taxes at the time of settlement, before the net amount reaches the supplier.

• When does it begin? A testing phase starts in 2026 with a symbolic rate of 1% (0.9% CBS and 0.1% IBS). CBS will be effectively implemented in 2027, while IBS will undergo a progressive transition until 2032/2033.

• Why is this urgent? Starting August 1, 2026, electronic tax documents must include mandatory IBS and CBS information, with penalties for companies that fail to comply.

• What is the impact? Companies will begin receiving only the net amount of transactions, losing the flexibility of using tax amounts as working capital. This requires a review of contracts, payment terms, and systems.

The Timeline Putting Pressure on Companies Today

Brazil's consumption tax reform, established through Constitutional Amendment 132/2023 and regulated by Complementary Law 214/2025, already includes specific implementation dates:

• 2026 is the operational testing year for split payment, with a symbolic tax rate of 1% (0.9% CBS and 0.1% IBS).

• As of August 1, 2026, IBS and CBS amounts must be displayed on electronic tax documents, with specific penalties for non-compliance.

• 2027 marks the effective implementation of CBS, along with the introduction of the Selective Tax.

• IBS will follow a longer transition period, progressively replacing ICMS and ISS through 2032/2033.

Initially, the mechanism will apply to payment methods such as Pix, bank slips, and transfers. Card payments and vouchers will be incorporated later. In 2026, Brazil's Federal Revenue Service and the IBS Management Committee published the technical manual for the Public Split Payment Platform, defining how banks and payment institutions will communicate with tax authorities.

In other words, what once seemed distant now has a published technical manual, active testing, and a clearly defined compliance deadline for 2026.

An Impact That Goes Far Beyond Tax Compliance

The most immediate effect of split payment is not legal but financial. Companies will receive only the net value of each transaction, losing the ability to temporarily use tax funds as part of their working capital.

This impacts multiple areas simultaneously:

• Cash flow: funds that previously remained available until tax payment deadlines will now be deducted at the moment of sale.

• Commercial contracts: payment terms and conditions must be reviewed to prevent cash-flow mismatches.

• Systems and ERP platforms: product registrations, tax classifications, and invoice issuance processes must accurately reflect the new IBS and CBS fields.

• Internal processes: reconciliation, collections, and accounting procedures will require accounts and workflows that many systems currently do not support.

None of these areas can be addressed in isolation. Updating an ERP without reviewing contracts, or revising contracts without redesigning cash-flow processes, may leave the company technically compliant but operationally exposed.

Why This Is Primarily a Speed Challenge

Most companies have capable tax and IT teams. However, they are typically staffed to handle the normal pace of regulatory changes, not a transformation that includes testing in 2026 and mandatory implementation stages within the same year.

This is where the difference between "understanding the tax reform" and "having the capacity to adapt systems and processes on time" becomes clear. Understanding split payment is relatively straightforward. Redesigning product catalogs, ERP systems, contracts, and cash-flow processes within the reform timeline, while ensuring all systems communicate correctly with one another and with the Public Split Payment Platform, is a completely different challenge.

Where Does BTO Make a Difference?

A BTO (Business Transformation Outsourcing) partner specialized in process technology becomes valuable at exactly this stage, not to explain the reform, but to execute the adaptation from end to end within the required timeframe.

In practice, this includes:

• Rapid exposure assessment, identifying which processes, contracts, and systems will be impacted first.

• Redesign of financial and tax workflows, considering the new tax collection moment, at settlement rather than month-end.

• System and integration adjustments, ensuring ERP platforms, invoicing systems, and reconciliation processes align with the new fields and communication requirements of the public platform.

• Execution with dedicated capacity, reducing dependence on internal teams that are already occupied with day-to-day operations.

The key difference is speed. A BTO partner exists to deliver adaptation at the pace required by the tax reform, not at the pace an internal team could sustain on its own.

Split Payment Will Not Wait for Companies to Get Organized

It will become operational according to the tax reform timeline, testing each company's ability to adapt in real time.

In this context, working with a BTO partner is no longer merely a long-term strategic option. It becomes a direct response to a concrete challenge: adapting processes and systems at the speed required by Brazil's tax reform while protecting cash flow, maintaining compliance, and ensuring business continuity.