# Greece — e-invoicing and tax compliance

> E-invoicing mandates, regulations and Invopop coverage for Greece.

Country: Greece
ISO 3166-1 alpha-2: GR
Region: Europe
Currency: EUR
Invopop coverage: Covered — available in production
Tax authority: Independent Authority for Public Revenue (IAPR)
Tax authority website: https://www.aade.gr/en
Archiving period: 5 years
E-signature requirement: not_required
Last updated: 2026-08-19 10:26:11

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## E-invoicing mandates by channel

| Channel | Status | Format | Infrastructure | Model | Effective date | Scope / deadline |
|---|---|---|---|---|---|---|
| B2G | Mandatory | EN 16931 + CIUS (XML) | Hybrid: public and private platforms | Centralised | — | Mandatory since 2023, phased in by company size |
| B2B | Mandatory | EN 16931 + CIUS (XML) | Hybrid: public and private platforms | Centralised | — | February 2026 for companies above €1M, October 2026 for all other businesses |
| B2C | Mandatory | EN 16931 + CIUS (XML) | Hybrid: public and private platforms | Centralised | — | February 2026 for companies above €1M, October 2026 for all other businesses |
| E-Reporting | Mandatory | EN 16931 + CIUS (XML) | — | — | — | Phased in from 2021; since 1 January 2024 all companies report sales invoices in real time |

Channel keys: B2G = business-to-government, B2B = business-to-business, B2C = business-to-consumer, E-Reporting = periodic transaction reporting to the tax authority.

## Invopop coverage

Formats, networks and systems Invopop supports in this country.

### Peppol

OpenPeppol is the international four-corner network for cross-border B2B and B2G invoicing. Invopop connects you through a single integration as your Access Point, generating Peppol BIS 3.0 in UBL or CII, validating against EN 16931, and routing documents in both directions.

- **Bidirectional exchange** — Send invoices to any Peppol participant and automatically receive inbound documents through one integration.
- **UBL and CII** — Generate both Peppol BIS Billing UBL 3.0 and UN/CEFACT CII from a single GOBL source, with Invopop handling the conversion.
- **Participant registration** — Register companies as Peppol participants via API, including proof-of-ownership validation for platforms onboarding many merchants.
- **Participant ID lookup** — Validate recipient IDs before sending, derived automatically from VAT numbers or local business identifiers.
- **Visibility control** — Configure each party's presence across the SMP, SML, and Peppol Directory.

Docs: https://docs.invopop.com/apps/peppol

### myDATA

Greece's myDATA e-books run by the tax authority IAPR. Invopop generates the IAPR XML and transmits it in real time through its authorized partner ILYDA, returning the MARK identifier assigned to each document.

- **Real-time reporting** — Every invoice is transmitted to myDATA as it is issued.
- **MARK assignment** — The unique MARK identifier is returned from AADE on submission.
- **ILYDA partner** — Submission runs through ILYDA, Invopop's authorized e-invoicing partner registered under Provider Code 008.
- **EN 16931 + CIUS** — Greek EN 16931 plus CIUS XML with the required tax extensions is handled automatically.
- **myDATA QR** — The QR code per AADE specifications is embedded on every issued PDF.

Docs: https://docs.invopop.com/apps/ilyda-greece

### PDF

The universal visual invoice that works for any recipient. Invopop renders a branded, multilingual PDF from the same GOBL source, with every field the destination country requires, locale-correct formatting, and built-in email or webhook delivery.

- **Every field, every format** — PDFs include every field the destination country requires, automatically.
- **Localized in 10+ languages** — Issue invoices in English, Spanish, German, Italian, Portuguese, Arabic, Greek, Polish, and more, with locale-correct date and number formatting.
- **Built-in email delivery** — Invoices are emailed directly to clients from Invopop's domain or your own.
- **Invoices, credit notes and more** — Produce standard invoices, proforma invoices, credit notes, corrective documents, and receipts.
- **Customisable templates** — Templates support logo configuration, standard page layouts, and per-locale formatting.
- **Built on GOBL** — Rendered from GOBL, the open-source invoicing standard, for full transparency and no vendor lock-in.

Docs: https://docs.invopop.com/apps/pdf-generator

## Timeline

Dated milestones in this country's mandate rollout.

### 2023 — B2G e-invoicing mandatory

Electronic invoicing to Greek public bodies became mandatory, phased in by company size.

### 1 JAN 2024 — Real-time reporting for all companies

All companies must declare sales invoices to myDATA in real time.

### NOW — E-invoicing and e-reporting systems enforced to date

Existing systems enforced in Greece regarding e-invoicing, e-reporting and fiscalization.

| System | Invopop support | Notes |
|---|---|---|
| EN 16931 | supported | All public sector entities are required to receive and process structured eInvoices compliant with the European standard EN 16931 |
| MyDATA reporting | supported | From Jan 1, 2024, all companies must declare their sales invoices (Accounts Receivable) in real-time to the MyDATA platform |

### 1 FEB 2026 — B2B invoicing for large companies

Companies with revenues exceeding €1 million in the 2023 fiscal year in Greece will be required to issue electronic invoices for the sale of goods and provision of services within the country, as well as for transactions with companies from third countries (outside the European Union)

### 1 OCT 2026 — B2B invoicing for all companies

Greece's B2B invoicing mandate phases smaller company's obligations to October 2026.

### FUTURE (TBD) — VAT in the Digital Age (ViDA)

Greece has expressed strong interest in extending real-time e-reporting or e-invoicing to all domestic and cross-border sales as part of the EU VAT in the Digital Age (ViDA) initiative.

## Regulations

- [Joint Ministerial Decisions (National e-invoicing specification)](https://www.aade.gr/en/mydata)

## Integrations

- Mydata API
- Peppol

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## Source

- Canonical page (human): https://www.invopop.com/coverage/greece
- This document (markdown): https://www.invopop.com/coverage/greece.md
- Site index for LLMs: https://www.invopop.com/llms.txt
- All countries (markdown): https://www.invopop.com/coverage.md
- Developer docs: https://docs.invopop.com/compliance/greece