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Explore the latest electronic invoicing, reporting and archival requirements.
Greece
Regulations
E-invoicing requirements in Greece
Technical requirements
Platform: myDATA (Central Portal) / KE.D. (Interoperability Center for B2G).
Format: EN 16931-1 compliant.
B2G: Peppol BIS 3.0 (with Greek CIUS).
B2B: Structured formats (UBL 2.1 or CII) via certified providers or the "timologio" app.
Archival period: Minimum 10 years
B2G mandates
Status: Following phased rollout, mandatory for all public contracts above €2,500 as of September 2025.
B2B mandates
Phase A – Mar 2, 2026: Mandatory issuance for "Large Enterprises" (those with 2023 revenues > €1 Million); grace period until May 3, 2026.
Phase B – Oct 1, 2026: Mandatory issuance for all other businesses; grace period until October 31, 2026.
E-reporting and e-ledgers mandate (myDATA)
Mandate: All Greek businesses must transmit "Synopsis" data (summary records) of all revenues and expenses to the myDATA platform.
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