E-Invoicing in Greece:

Get Ready with Melasoft SAP Add-On

Greece is digitizing its tax system with mandatory e-invoicing and real time VAT reporting via the myDATA platform. E-invoices must be submitted in a predefined XML format, enabling the tax authority (AADE) to prefill VAT returns and improve transparency.

Greece has received EU approval to mandate B2B e-invoicing from July 2025, with implementation likely in 2026.

With our e-compliance experience in 30+ countries, Melasoft SAP Add-On offers a simple, reliable, and fully compliant solution tailored to your company’s needs.

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E-Invoicing Regulation:
Who Oversees Compliance?

The Independent Authority for Public Revenue (AADE) governs e-invoicing in Greece. It operates the myDATA (My Digital Accounting and Tax Application) platform the central system for reporting sales, purchases, and ledger data.

The e-invoicing regime supports the shift to real-time tax monitoring, reducing VAT fraud and administrative burdens.

MEET STANDARDS

Greece E-Invoicing Timeline

2021–2022

myDATA phased in for all VAT-registered businesses

July 2, 2025

Greece requested EC permission to mandate B2B e-invoicing

January 1, 2024

Updates introduced for real-time reporting via ERP APIs

February 25, 2026

EU Council approved Greece’s request (2026 (likely launch): Businesses are expected to go live with full compliance)

July 1, 2025
December 31, 2025

Validity period for mandatory

B2B e-invoicing

E-Invoice Format and Technical Requirements

Greece’s e-invoicing system is based on standardized, structured formats aligned with European and national specifications.

Mandatory Formats:

B2G (Business-to-Government): EN 16931-compliant using Peppol BIS 3.0 GR CIUS for submission via the Peppol network.
B2B Clearance Model (via AADE): UBL 2.1 GR format required for direct reporting to the myDATA platform.
B2B Exchange Model (via ASP): UBL 2.1 format used when transmitted through an Accredited Service Provider (ASP). If sent outside the ASP route, format is currently unregulated.

Technical Requirements:

Submission in structured XML with predefined field mappings
Full alignment with VAT codes, accounting rules, and General Ledger entries
Secure archiving and retrieval for audits and legal access
Transmission routes include ERP APIs, certified ASPs, or the Timologio tool
Filing frequency: Monthly or quarterly, based on business size
Deadline: Reporting must be completed by the 20th of the following month

STAY COMPLIANT

B2G and B2B Invoicing
Workflows in Greece

For both B2G (public sector) and B2B (private sector) transactions:

E-invoice is created in structured XML via ERP or e-invoicing provider
Sent to myDATA for real-time reporting
(For B2G): Also transmitted via Peppol
Invoice matched against buyer’s data and ledger records

Five submission routes exist, including:

Direct API from ERP (recommended for SAP users)
Certified e-invoicing providers
AADE’s free “Timologio” tool (limited functionality)

STREAMLINE with MELASOFT

Benefits of Melasoft SAP Add-On for Greece

Melasoft’s SAP Add-On is built to meet Greek tax and legal requirements, offering:

Seamless SAP ECC & S/4HANA integration
Real-time submission to myDATA
Peppol-ready B2G transmission
Accurate mapping of VAT, XML, and ledger fields
Built-in archiving and tracking features
No manual uploads, no middleware needed. Just plug, set, and comply.

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Ready for e-invoicing in Greece?

Melasoft’s SAP Add-On is trusted by businesses across Europe to meet complex e-invoicing mandates with ease. Ensure full compliance with Greek regulations backed by our proven expertise and reliable technology.