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E-Invoicing System

Objective​

efsta's E-Invoicing module provides a comprehensive compliance solution that aligns with the latest EU regulations aimed at ensuring the accurate reporting of B2B transactions. Integrated as part of our EFR (Electronic Fiscal Register), this solution addresses the required structure and formatting for invoices in various scenarios (B2B, B2C, B2G), in addition to facilitating data transport and process monitoring. Designed with flexibility in mind, it is not tied to a specific document format (e.g., ZUGFeRD) or transport mechanism. Beyond meeting legal reporting obligations, efsta’s E-Invoicing solution also offers a secure, reliable, and seamless invoice management system through the efsta Portal.

Solution​

Currently, efsta offers the E-Invoicing solution for two countries. Additional country-specific solutions are being rolled out gradually in accordance with local regulatory requirements.

Germany

Our solution was initialized with the publication of PEPPOL XRechnung Deutschland B2G in March 2023. Germany is currently in the process of transitioning to mandatory B2B E-Invoicing, with key implementation phases commencing in 2025. Starting January 1, 2025, businesses are required to receive E-Invoices.

Issuing Invoices​

Until the end of 2026, businesses can still issue paper invoices for B2B sales, although E-Invoices must comply with the new format unless the recipient agrees to a different electronic format. Companies with a turnover of up to EUR 800,000 from the previous year can continue using paper invoices or alternative electronic formats until the end of 2027.

Receiving Invoices​

As of January 1, 2025, all businesses must be equipped to receive and process E-Invoices. Transitional regulations affect the issuance of invoices, but not their receipt. There is no prescribed method for issuing or transmitting invoices, nor is there a designated government platform for this purpose. efsta’s email solution has been developed to ensure compliance and security with German regulations.

Italy

In Italy, B2B E-Invoicing via the SDI (Sistema di Interscambio) system has been mandatory since January 2019. This regulation mandates that all invoices be issued, transmitted, and received in a structured data format to facilitate automatic electronic processing in accordance with Italian law. Furthermore, companies must ensure their E-Invoices comply with Directive 2014/55/EU, and that secure, traceable archiving is maintained.

Poland (Testing)
note

The productive system for Poland has not been launched yet, but the test & pre-production environment is available!
If you would like to act as a pilot customer, please contact your partner manager.

In Poland, the national E-Invoicing platform KSeF (Krajowy System e-Faktur) is being introduced to handle all B2B invoices. KSeF has been available for voluntary use since January 1, 2022 and will become mandatory in stages. They set a phased timeline for compulsory E-Invoicing through KSeF based on company size.

Timeline​

  • February 1, 2026: Mandatory for large businesses (annual turnover above PLN 200 million)
  • April 1, 2026: Mandatory for all other businesses

It is also possible to handle B2C invoices through KSeF, but this is optional. efsta’s E-Invoicing solution ensures compliance with Poland’s KSeF regulations by supporting all mandatory technical specifications.