Following the recent announcement by the Greek tax authority (AADE) regarding an upcoming B2B e-invoicing mandate, it’s essential to take a closer look at both the current and future e-invoicing requirements in Greece.
B2G e-invoicing has already been mandatory for several years. It is based on a clearance model via the myDATA central platform, followed by invoice transmission through the Peppol network using the Peppol BIS 3.0 format with a Greek CIUS.
The new B2B e-invoicing mandate, planned in two phases on February 2 and October 1, 2026, is expected to follow similar principles. However, several points still need clarification, particularly regarding invoice delivery methods. It remains uncertain whether businesses will be allowed to send invoices in paper or PDF format (including a QR code) or whether electronic delivery, such as through the Peppol network, will be required.
Another open question concerns connectivity and autonomy. Greece currently relies heavily on certified service providers and offers a free government application for SMEs without e-invoicing tools. It is not yet known whether technically capable companies will be permitted to connect directly to the myDATA API and manage their own invoice submissions.
Further guidance from the AADE is expected in the coming months to clarify these points.
Greece Country Profile
In the meantime, learn more by visiting our detailed Greece Country Profile, featuring:
- Summaries of the B2G & B2B e-invoicing obligations in Greece
- Timeline of the main e-invoicing milestones
- Access to resources such as some of the technical specifications
- More detailed technical explanations
Additionally, visit The Invoicing Hub regularly to read the latest relevant news regarding e-invoicing in Greece, and to remain updated about the latest developments and the expected clarifications.
