Presumed Profit Calculator (IRPJ, CSLL, PIS/COFINS, and ISS)
Want to estimate your company's taxes quickly and easily? This calculator Presumed Profit shows, in just a few clicks, how much you would pay for Corporate Income Tax, Social Contribution Tax, Social Security Tax, and Service Tax, based on your monthly revenue, type of activity (services, commerce, or industry), and reported tax rates. It is a simulator: ideal for getting an idea of the tax cost before talking to your accountant.
How to use (in 3 steps)
- Report the month's revenue and select the type of activity (services, commerce, or industry).
- Fill in the tax rates, such as ISS of your municipality and, if applicable, ICMS and credit purchases.
- Click on Calculate to see the estimated amounts for each tax and the total taxes.
What you receive
- Effective tax rate (actual percentage of revenue).
- Estimated values of Corporate Income Tax (IRPJ) (15% + additional), Social Contribution Tax (CSLL) (9%), PIS, COFINS, and ISS.
- Highlight of the total taxes of the period.
Who it is recommended for
- Business owners and managers who need cost planning.
- Finance professionals who want to compare systems.
- Who is starting a business and needs a initial diagnosis.
Important: this is a simulator. Municipal regulations (e.g., ISS) and the specifics of your business may alter the results. Use the estimate as a reference and check with your accountant before making decisions.

