Simples Nacional Calculator 2026

The Simples Nacional 2026 Calculator was developed to help business owners and managers estimate their tax burden according to the current rules, taking into account the updated tables, gross revenue ranges and the application of the effective tax rate.

Simples Nacional is a tax system that unifies various federal, state and municipal taxes in a single tax form. However, the amount due is not calculated based solely on the nominal rate in the table. It is necessary to apply the effective rate formula, which takes into account:

• Gross revenue accumulated in the last 12 months
  
• Framework range in the corresponding annex
  
• Deductible portion provided for in the legislation

The formula used is:

Effective rate = (Gross Revenue 12 months × Nominal rate - Portion to be deducted) ÷ Gross Revenue 12 months

With the calculator, it is possible to quickly simulate the estimated amount of taxes due, providing greater financial predictability and support for the company's tax planning.

It is important to note that the tool is an estimate and does not replace individualized technical analysis, especially in scenarios involving mixed activities, the R factor, state sub-limits or possible impacts of the Tax Reform.

For a strategic and personalized assessment, count on the support of the CLM Controller team.