Greece's E-Invoicing Mandate Creates a Mandatory Private Toll — and Greek Economists Are Pushing Back

As Greece's e-invoicing mandate approaches its October 1 deadline, a pointed question is emerging from within the profession itself: why must businesses using ERP systems route every invoice through a private third-party Service Provider — and pay for the privilege — when the Greek tax authority already has the infrastructure to receive data directly?

The Hidden Cost of Compliance

The Independent Movement of Greek Economists (AKIOE) has published a statement that cuts through the technical noise to raise a structural question about the design of Greece's e-invoicing framework. Since 2019, Greek businesses invested substantially in ERP systems adapted for myDATA integration. AADE itself developed REST APIs enabling direct machine-to-machine communication. Yet the current legislation — specifically articles 239 and 240 of Law 5222/2025 — routes ERP-based businesses through a mandatory private intermediary for B2B invoice compliance.

The Core Argument: Why a Public API Should Exist

AKIOE's proposal is technically straightforward: AADE should create an open, free Public e-Invoicing API. Any ERP system that meets rigorous technical standards — electronic authentication, data integrity, timestamping, unique numbering, immutable audit logs, and immediate transmission — should be certifiable to send invoices directly to AADE without a mandatory private intermediary.

Private Service Providers, under this model, would remain — but as a competitive market offering quality, SLA guarantees, advanced automation, and value-added services, rather than a mandatory toll booth between the business and the tax authority.

The Legal Dimension: Proportionality

The statement raises a constitutional-level question. Article 25(1) of the Greek Constitution mandates respect for the principle of proportionality in regulatory intervention. If a certified ERP can technically guarantee all required invoice integrity conditions, the state must explain why mandatory private intermediation is still necessary. The EU's Council Implementing Decision that authorised Greece to make e-invoicing mandatory did not prescribe a specific private business model — that was a national regulatory choice that demands justification.

Market & Business Perspective

The cost argument is simple but often overlooked in policy discussions: a regulatory burden that does not appear in the state budget does not disappear — it shifts to the private sector. For businesses already paying for ERP licences, myDATA API integrations, and annual system upgrades, adding a recurring Service Provider subscription represents a new, permanent operational cost. Compounded over hundreds of thousands of businesses, the aggregate economic impact is substantial.

Beyond cost, AKIOE identifies market structure concerns: how is concentration in a legislatively-mandated market prevented? How is data portability between providers guaranteed? How can a business switch providers without losing historical invoice data?

Key Takeaways

• ERP-based businesses currently have no direct-to-AADE compliance path without a private Service Provider

• The EU did not mandate private intermediaries — this is a national policy choice

• AKIOE proposes a certified Public ERP-to-AADE API as an alternative compliance route

• Open questions on market concentration, data portability, and switching costs remain unanswered

• Service Providers should compete on quality and value — not function as regulatory gatekeepers

Closing Insight

The AKIOE statement is not anti-digitalisation — it is pro-proportionality. The profession broadly supports electronic invoicing as a tool against tax evasion and for operational efficiency. What it is questioning is whether the specific implementation design imposes unnecessary costs on businesses that already comply with the spirit of the mandate. For now, every business must make its compliance decisions within the existing framework. But the debate this statement opens is legitimate, timely, and likely to shape future iterations of the rules.

Source: taxheaven.gr | Read the full article here: https://www.taxheaven.gr/news/74687/