Estimate the 13th gross salary proportional to months worked and variable averages. Useful for planning an end-of-year budget, checking a simple basis before the payslip and simulating proportionality in recent admissions.

When to use it

plan budget with 13th gross salary: It helps to have a quick reference before committing end-of-year money.
estimate proportional 13th in recent admission: Shows how entitled months change the fraction of the thirteenth.
include average of variables in the base: Allows you to test on a monthly basis with averages reported by the user.

How to read the result

Proportional gross 13th is the main estimate before legal discounts.
Gross balance after advance helps you visualize how much is still left before discounts.
The year proportion shows whether the simulation is full or partial.

Inputs that deserve attention

Gross monthly salary (R$): It is the fixed base used to estimate the gross thirteenth. Use gross salary, not net salary.
Monthly average of variables (R$): Allows you to add a simple average of variable values to the calculation. Commissions, additional fees and official averages may follow a specific rule on the pay slip.
Entitled months in the year: Defines the proportion of the 13th within the year. Cases of absences, absences or termination may change the count.

Method used

Proportional gross 13th = gross monthly salary plus variable averages, multiplied by eligible months and divided by 12.
The balance after advance subtracts amounts already received, limited to zero.

Limits and validation

It does not replace a payslip, accountant, HR or legal or employment advice.
It does not calculate INSS, IRRF, termination, vacations, absences, leaves or specific agreements.
The tool explains that it is a gross estimate and not an official net calculation.

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FAQ

Does this calculator show the 13th liquid?

No. MVP shows a gross proportional estimate and does not calculate INSS, IRRF, absences, termination or specific rules.

How to count months with the right to the 13th?

In general, count the months in which you were entitled to the fraction of the year. Cases involving absences, absences or termination require verification of pay slips or professional guidance.