Where are we now?
In Greece, e-invoicing is at the centre of the digital tax strategy and is built around the central myDATA platform, managed by the tax authority AADE. This system plays a key role in the validation and reporting of accounting data, establishing a “clearance” model, in which invoices must be transmitted and approved before they are considered valid. In B2G, e-invoicing has been fully mandatory since 1 September 2025 for all public contracts above €2,500. Invoices must be validated via myDATA and then transmitted through the Peppol network in structured format compliant with the European standard EN 16931.
For B2B, the obligation will come into force in 2026 with a progressive rollout: from 2 March 2026 for large companies and from 1 October 2026 for all businesses. Here too, the model provides for prior validation of invoices via myDATA and the assignment of a unique identifier (MARK), which certifies that the tax check has taken place.
Companies will be able to manage the process via certified providers, direct API integrations or tools made available by the administration, such as the free Timologio application. However, some operational aspects – such as the final arrangements for B2B invoice delivery – are still being defined. For businesses, adapting to the Greek model means dealing with a centralised, tax-control-oriented system that requires technological integration and the ability to manage flows in real time, while at the same time representing a decisive step towards the digitalisation of administrative processes.
A-Cube APIs for e-invoicing in Greece
Where are we now?
In Greece, e-invoicing is at the centre of the digital tax strategy and is built around the central myDATA platform, managed by the tax authority AADE. This system plays a key role in the validation and reporting of accounting data, establishing a “clearance” model, in which invoices must be transmitted and approved before they are considered valid. In B2G, e-invoicing has been fully mandatory since 1 September 2025 for all public contracts above €2,500. Invoices must be validated via myDATA and then transmitted through the Peppol network in structured format compliant with the European standard EN 16931.
For B2B, the obligation will come into force in 2026 with a progressive rollout: from 2 March 2026 for large companies and from 1 October 2026 for all businesses. Here too, the model provides for prior validation of invoices via myDATA and the assignment of a unique identifier (MARK), which certifies that the tax check has taken place.
Companies will be able to manage the process via certified providers, direct API integrations or tools made available by the administration, such as the free Timologio application. However, some operational aspects – such as the final arrangements for B2B invoice delivery – are still being defined. For businesses, adapting to the Greek model means dealing with a centralised, tax-control-oriented system that requires technological integration and the ability to manage flows in real time, while at the same time representing a decisive step towards the digitalisation of administrative processes.
A-Cube APIs for e-invoicing in Greece
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028