E-invoicing in Greece

Greece combines e-invoicing reform with its myDATA digital reporting environment. B2G e-invoicing has been phased in, and domestic B2B e-invoicing is moving into mandatory implementation after EU authorisation. The Greek model is therefore important for both invoice exchange and tax-data reporting.

The 2026 rollout has been subject to timetable changes, so businesses should monitor AADE announcements closely. The direction, however, is clear: Greece is moving toward mandatory structured e-invoicing for domestic B2B transactions between taxable persons established in Greece.

At a glance

B2B e-invoicing

Mandatory rollout authorised and moving through phased 2026 implementation

B2G e-invoicing

Public-sector e-invoicing phased in, with general government supplier obligations active in 2025

Core systems

AADE, myDATA, certified e-invoicing providers and Peppol for B2G channels

VAT reporting model

myDATA digital reporting remains central

Strategic direction

Integration of e-invoicing with real-time or near-real-time tax visibility

What the mandate means

Greece has EU authorisation to require e-invoicing for transactions between taxable persons established in Greece. In practice, businesses need to align invoice issuance, provider connectivity and myDATA transmission. The result is a compliance model where the invoice and the tax data trail are closely linked.

For B2G, Greece uses structured e-invoicing processes for public procurement, with Peppol-based exchange playing a role. For B2B, the key implementation question is which taxpayers are in scope at each phase and which technical route is required by AADE rules.

Timeline

2024-2025: B2G e-invoicing phased into wider public-sector use

2025: EU authorised Greece to introduce mandatory domestic B2B e-invoicing

2026: Domestic B2B e-invoicing rollout moves through phased enforcement, with timetable updates to be monitored

1 Jul 2030: EU ViDA digital reporting for intra-EU B2B transactions begins

What businesses should do now

Because dates have moved, internal project plans should include a regulatory watch process.

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Map Greek domestic B2B flows

Confirm whether entities are established in Greece

Select compliant provider routes

Validate invoice data against Greek requirements

Reconcile e-invoice activity with myDATA reporting

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Frequently asked questions

Is Greece already a real-time reporting country?

Greece already operates myDATA, which gives the tax authority detailed invoice and accounting data. Mandatory B2B e-invoicing adds another layer to this digital tax environment.

Does the mandate apply to non-established businesses?

The EU authorisation focuses on taxable persons established in Greece. Non-established businesses should assess Greek registration and transaction facts with local advice.

Sources:

EUR-Lex: Council Implementing Decision (EU) 2025/502

AADE: myDATA

AADE: Electronic invoicing providers

European Commission: eInvoicing in Greece

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