Tax reform has already started to change the routine of Brazilian companies and should require adaptation from businesses of all sizes in the coming years. The transition to the new rules begins in 2026 and could impact everything from issuing notes to pricing, contracts and cash flow.

The main change involves the replacement of taxes such as ICMS (Tax on Circulation of Goods and Services), ISS (Tax on Services of Any Nature), PIS (Social Integration Program) and Cofins (Contribution to the Financing of Social Security) through new collection models, such as CBS (Contribution on Goods and Services) and IBS (Tax on Goods and Services).

For tax lawyer Rafael Roveri Molina, from São José do Rio Preto, many companies have not yet realized the size of the change. “Many people think that the reform will only impact the value of taxes, but it also changes internal processes, financial control and the way companies organize their operations”, he states.

According to him, businesses that fail to adapt at the last minute may face more operational difficulties and increased costs. The Brazilian tax burden reached 32.4% of GDP (Gross Domestic Product) in 2025, according to data from the National Treasury. Brazil also appears among the countries with the most complex tax system in the world.

Below, see what entrepreneurs can already do:

1. Review the tax framework

Assessing whether the company’s current model continues to be the most advantageous can avoid future losses.

2. Better organize your finances

Companies with financial controls Disorganized people tend to face more difficulty in adapting to new rules.

3. Update systems and tax issuance

Softwares Old or very manual processes can generate errors and rework.

4. Review contracts and suppliers

The reform can change costs at different stages of the operation and impact negotiations.

5. Keep up with new regulations

Part of the rules will still be defined in the coming years, requiring constant monitoring.

Advance planning can reduce risks

According to Rafael Roveri Molina, “the company that starts to organize itself earlier gains time to correct processes and reduce risks during the transition”. According to the tax lawyer, companies that invest in financial organization and integration between tax, accounting and administrative sectors should face fewer difficulties throughout the change.

By Henrique Fernandes