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E-invoicing requirements in 

Portugal

Explore the latest electronic invoicing, reporting and archival requirements.

Portugal
Regulations

Electronic invoicing requirements

Unifiedpost Group has a compliant outbound solution.

‍

Technical requirements

  • Platform - eSPap for central authorities, decentralised for the rest
  • Format - CIUS-PT
  • Archival period - Minimum 10 years

‍

B2G mandates

  • Receiving - All public bodies
  • Issuing - All suppliers of public bodies

‍

B2B mandates

  • No existing or upcoming mandates

‍

Compliance considerations

  • Monthly SAF-T billing submissions
  • ATCUD Sequential Number - allocated by AT for batches of invoices prior to their issuance
  • QR code on paper or PDF invoices
  • 1 January 2025 - Qualified Electronic Signatures (QES) on PDF invoices

Discover even more about the local regulations

Compliance and Regulations

Our take on 2023's global electronic invoicing changes

Discover our take on 2023's global e-invoicing changes. We discuss the impact on businesses and the influence of further changes throughout Europe.

min read
January 30, 2023
Compliance and Regulations

Upcoming e-invoicing changes in 2023

Explore which countries will see mandatory e-invoicing regulation changes throughout 2023.

min read
January 9, 2023
Digital Transformation

Where is Portugal in its digital journey? With Unifiedpost Group’s Miguel Zegre

From Portugal's use of digital technologies, to where the country can improve and how digital plays a role in business electronic invoicing processes.

min read
October 26, 2022
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