From 3 August 2026, companies under Brazil's regular tax regime must issue electronic tax documents with mandatory CBS and IBS fields, ending the testing period and introducing sweeping changes to cash flow, supplier relationships, and financial planning.
Brazil’s tax reform—established by Constitutional Amendment No. 132/2023 and regulated by Complementary Law No. 214/2025—shifts from preparation to enforcement in July 2026.
The Dual VAT system introduces CBS (Contribution on Goods and Services) and IBS (Tax on Goods and Services) to replace fragmented existing taxes: PIS, Cofins, and IPI are absorbed by CBS, while ICMS (state) and ISS (municipal) merge into IBS.
A test rate of 1% applies now—comprising 0.9% CBS and 0.1% IBS—with penalties for non-compliant invoicing.
Cash flow and credit conditioning: A structural shift
The reform fundamentally restructures working capital dynamics. Under the old model, companies retained collected tax until the following month. The new split payment system changes this: tax is now collected immediately upon transaction payment, removing this temporary cash buffer.
Critically, acquiring companies can only claim tax credits if their suppliers have actually settled their tax liability. This introduces financial risk in long payment cycles. A supplier offering 120-day terms must pay tax upfront without yet receiving payment, and faces loss if the buyer defaults—leaving the supplier bearing both the cost of the buyer’s tax and the uncollected sale amount.
Tax reform timeline
- From 3 August 2026, companies must correctly parameterise IBS/CBS fields in invoices; failures trigger blocks or penalties.
- By September 2026, businesses intending to separate IBS/CBS calculations must notify the Federal Revenue Service (RFB) to maximise B2B credits in 2027.
- January 2027 sees CBS implemented at 8.5–9%, replacing PIS and Cofins, while IBS remains at 0.1%.
- Between 2029 and 2032, ICMS and ISS phase out gradually as IBS rates rise, requiring dual-regime compliance.
- The transition concludes in January 2033, when ICMS and ISS terminate, leaving CBS and IBS as Brazil’s sole indirect taxes.
Retail and trade sectors face margin pressure requiring precise repricing. Industry stands to gain through the elimination of cascading tax effects and full input credit recovery.
Agribusiness benefits from small producer exemptions and 60% reductions on fertilisers and pesticides.
Digital platforms face logistics restructuring as tax responsibility shifts to the consumer’s location, not the company’s.
Earlier, in May 2026, Brazil’s government announced that it is overhauling its indirect tax system by replacing five existing federal, state, and municipal taxes with two new levies: the federal CBS and the state and municipal IBS. The reform was enacted in late 2024, regulated by Complementary Law No. 214 on 16 January 2025, and is now supported by implementing regulations.
