How to calculate INSS and IRRF in Brazil in 2026
The calculation starts from the entered monthly taxable remuneration. Employee INSS is progressive by bands and capped at the 2026 social-security ceiling.
After INSS, the calculator builds the monthly IRRF base with dependents, deductible alimony, and comparison with the monthly simplified discount when enabled.
Does INSS come before IRRF?
Yes. In this monthly estimate, INSS calculated on the contribution base reduces the standard IRRF base, together with dependents and deductible alimony.
2026 INSS table and 2026 monthly IRRF table
The 2026 INSS table used here covers employee, domestic employee, and avulso worker categories, with 7.5%, 9%, 12%, and 14% bands.
The 2026 monthly IRRF table uses Receita brackets, R$189.59 dependent deduction, R$607.20 simplified discount, and the monthly reduction.
Dependents, alimony, and simplified discount
Dependents and deductible alimony reduce the standard base. The monthly simplified discount is compared separately and only changes the result if it creates a lower base.
Why the official payslip can differ
Official payroll may include specific rubrics, multiple employment links, rounding, eSocial setup, agreements, absences, benefits, and court orders.
When to use net salary instead of this calculator
Use this page to check only INSS and IRRF. For benefits, advances, manual deductions, non-taxable additions, and net salary, use the net salary calculator.
Official sources
This version's constants were checked against official sources accessed on 2026-07-07.
Related calculators
Use other Brazilian labor and tax calculators when the scenario is broader than monthly INSS and IRRF.
Important notice
This calculator is an educational payroll and tax estimate, not legal, tax, accounting, or official payroll advice. Payslip, eSocial, paying source, agreements, court orders, Receita, INSS, and professional review prevail.