With this simple but useful tool you will be able to know the Income Tax (ISR) that must be paid in the month or the year. With which you can make a better planning of your financial resources.

It is very easy to use! You only need to know the income, period expenses and if you have made any provisional payments.

And if you are an accountant, it will help you to make estimates of provisional payments when you are out of the office, which will allow you to give a better service to your clients.

* The calculator is designed with the Individuals who pay tax under the Business and Professional Activities regime in mind.

* It has updated rates.

* Allows you to copy the calculation to export it