Validate EN 16931 invoices for Greece
EN 16931 is planned in Greece. Greece is implementing mandatory B2B e-invoicing from February 2026 in phases — large businesses (>€1M revenue) first, then all businesses from October 2026.
Check a EN 16931 invoiceChecking is free. The tool detects the profile itself.
At a glance
FormatEN 16931
StandardEN 16931
MandatePlanned
PeppolConnected
PortalmyDATA ↗
What we validate
EN 16931 semantic model compliance
Business rule validation (BR-xx rules)
VAT category rules (BR-S, BR-Z, BR-E, etc.)
Calculation rules (BR-CO-xx)
Code list validation
Party identification
Cross-border requirements
Common EN 16931 rejections
BR-CO-10Sum of VAT category amounts incorrectBR-S-08Standard rate VAT amount missingBR-E-01Exempt reason requiredBR-CO-11Line amount calculation errorBR-CO-13Invoice total mismatchGreece e-invoicing requirements
| Phase | Status | Scope |
|---|---|---|
| myDATA reporting | Live (Jul 2021) | All businesses (mandatory) |
| B2G | Live (Sep 2025) | All public contracts |
| B2B Phase A | Live (Feb 2026) | Large businesses (>€1M revenue in 2023) |
| B2B Phase B | Oct 2026 | All remaining businesses |
Validation enginemyDATA (clearance platform with MARK/UID assignment)
Required CIUSEN 16931 compliant myDATA XML
Government portalmyDATA (aade.gr/mydata) ↗
PeppolYes — Peppol used for B2G delivery to KED
myDATA clearance workflow. Invoices are submitted to myDATA for validation, receive a unique MARK/UID, then are delivered via certified providers or the free Timologio app. QR codes on PDFs must link to the myDATA record. Tax incentives are available for companies adopting e-invoicing 2 months before the deadline: 100% equipment depreciation in purchase year and 100% deduction on e-invoice costs for the first 12 months.
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