1 – Access the service

• You can sign up through the portal or the gov.pt app.
• Use your Digital Mobile Key (CMD) or Citizen Card to authenticate.

If you represent a company, you must have business attributes associated via the Professional Attributes Certification System (SCAP).

2 – Next, choose your email address
Enter the email address where you wish to receive your invoices.
Input the confirmation code received in your email (the code is valid for 24 hours).

3 – Finally, set up invoice protection
A PIN code to access your invoices is automatically generated. By default, it consists of the last four digits of your taxpayer number (NIF).

• You can change it or choose not to use a PIN at the time of registration. Later, you may activate or change the PIN if you wish.

It is possible to cancel the service at any time and reactivate it later.