Key Features for Compliance with Portuguese Regulations
To ensure compliance, invoicing software for Portugal must inherently support specific regulatory requirements. A critical feature is the ability to generate invoices in the CIUS-PT format, which is the Portuguese core invoice usage specification, mandatory for all invoices issued to public sector entities. Furthermore, all invoices, regardless of recipient, must include an ATCUD (Unique Document Code) and a QR code, both essential for tax authority verification and consumer readability. Software should also facilitate the electronic retention of invoices for a mandatory period of 10 years, ensuring accessibility and integrity. Finally, robust support for SAF-T (Standard Audit File for Tax Purposes) reporting is non-negotiable, as businesses are required to submit their accounting and invoicing data in this structured XML format to the Portuguese tax authority.