Brazil began 2026 with sweeping fiscal change as the long-awaited tax reform and new income tax rules came into force on 1 January. The immediate phase is a testing period designed to gauge systems and processes across the public and private sectors rather than to increase revenue. Companies will begin reporting two new levies on sales invoices while detailed federal systems come online later in January.
Brazil tax reform 2026
Under the reform, invoices will display amounts for the new federal contribution CBS, at 0.9%, and the state and municipal tax IBS, at 0.1%. For 2026 there will be no collection of these taxes; the purpose is to test the digital reporting and to establish the calculation base that will keep overall tax burdens neutral. Microentrepreneurs and firms in the Simples Nacional regime are exempt from the immediate reporting requirement, which applies mainly to larger businesses.
Consumers may notice the new fields on receipts and invoices but should not see price changes during this initial phase. Tax authorities have said invoices issued without the new fields will not be rejected at the start of the year, though companies may need to correct documents later if they fail to include the information.
Some local administrations are providing flexibility. The city of São Paulo will permit service firms to issue invoices both with and without the new tax fields while municipal systems finalise configuration. Authorities expect a transition period of at least three months in which enforcement will be relaxed to allow administrations to prepare.
Federal portal and digital reporting
The federal portal that underpins the reform will open on 12 January. Officials say it will centralise a transaction volume roughly 10% greater than the Pix instant payment system while handling data volumes many times larger. The portal, accessed via Gov.br, will offer features such as a tax calculator, assisted assessments, prefilled declarations and real time monitoring of payables and credits for companies.
Authorities tested the platform with nearly 500 companies in recent months. The portal aims to streamline compliance and reduce duplication across federal, state and municipal levels. Over the coming months the fiscal authorities will publish formats and deadlines for sector specific reporting, affecting areas such as finance, real estate, utilities and energy.
New income tax rules and further changes
Separately, the new income tax table offers relief for many taxpayers. The reforms include a reduction of up to R$312.89 for some taxpayers, exemption for taxable monthly incomes up to R$5,000 and a lower burden for those earning up to R$7,350. Firms must also withhold 10% on dividends paid to resident individuals when distributions exceed R$50,000 per month. The rule applies across company types, including those in Simples Nacional; non-residents face withholding regardless of amount.
Officials and tax advisers note several unresolved items that will be clarified during 2026, including rules for a minimum tax on very high incomes and technical regulations that require congressional action or secondary norms. Other planned changes include the first reporting of a minimum tax for large multinationals in July and the introduction of an alphanumeric CNPJ for new registrants.
Tax specialists describe 2026 as a learning year. Businesses will need significant support to adapt, particularly medium sized firms. Regulators have set up help desks and special teams to assist companies during the rollout. Over the next seven years authorities expect a phased transition that will culminate in a new tax framework and the end of ICMS and ISS under the current system.
Key Takeaways:
- Brazil tax reform 2026 begins a test phase on 1 January with CBS and IBS fields shown on invoices but no immediate collection.
- Consumers will see new tax information on receipts but prices will not increase during the trial period.
- A federal portal opens on 12 January to centralise tax data and assist companies with calculation and reporting.
- New income tax rules cut rates for many earners and introduce a 10% withholding on large dividend payments.
