In Portugal, there are two primary approaches for reporting your financial figures to the tax authorities: simplified/non-organised accounting and organized accounting. This choice holds significant weight in determining your self-entrepreneurial earnings at year-end.
You have the right to choose between one of the two accounting regimes if you are:
1- Self-Employed Workers or Freelancers
2- Individual Contractors
Note: any company, whether anonymous, joint stock or otherwise, is required to use the organized accounting regime.