Regulatory framework 
Technical standards and models 
Legal obligations of public entities 
Supplier obligations 
Implementation and transition deadlines 
Digital signature requirements 
Costs and business models 
Integration with external systems 
Future and technological developments Electronic Invoicing in Portugal 2025
Complete guide on implementation and legal compliance
Electronic invoicing represents a fundamental transformation in the way companies and public bodies manage their administrative and financial processes. In Portugal, this reality has become even more relevant with the application of European regulations that establish strict standards for the issuance, transmission, and receipt of electronic documents.
FE-AP portal and ESPAP services
The Public Administration Electronic Invoices Portal (FE-AP) is the official entry point of the Portuguese State for the receipt and processing of electronic invoices. Developed by the Public Administration Shared Services Entity (Entidade de Serviços Partilhados da Administração Pública - eSPap), this portal centralises the receipt of electronic documents for various Public Administration entities in Portugal.
ilink is fully integrated with FE-AP, and to register it is necessary to complete a specific onboarding process, which includes validation of the supplier's identity and the technical set-up required for document transmission. Our platform offers full support in this process, ensuring that suppliers are ready to send documents.
