Greece Establishes Mandatory B2B E-Invoicing Law, Awaiting Technical Details and Implementation Date

• Greece has established a legal framework for mandatory B2B e-invoicing.
• The National Customs Code was approved on 25 July 2025 and published on 28 July 2025.
• The law requires electronic invoicing for domestic B2B transactions, exports to non-EU countries, and public procurement.
• Invoices must comply with the European standard EN 16931.
• Invoices will be transmitted via the myDATA platform, the timologio application, or certified service providers.
• Technical specifications, transmission rules, and the go-live date will be defined in a future Joint Ministerial Decision.
• A transition period of at least 12 months is expected before enforcement.
• This is part of Greece’s digital tax transformation following an EU Council derogation in March 2025.
• Businesses are encouraged to prepare for integration with myDATA and certified channels.

Sources:

• SNI
• vatcalc.com

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• See also
  • E-Invoicing/Real Time Reporting – What can you find on VATupdate.com
  • Worldwide Upcoming E-Invoicing mandates, implementations and changes – Chronological
  • Collection of E-Invoicing Guides – Worldwide – VATupdate
• • Briefing / Comprehensive Guides (incl. podcasts)

• Join the Linkedin Group on Global E-Invoicing/E-Reporting/SAF-T Developments, click HERE

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