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eInvoicing Documentation

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eInvoicing in Greece

Responsible

Ministry of Digital Governance

Legislation

The Directive 2014/55/EU was transposed under the Law 4601/2019  

Transposed the Directive 2014/55/EU

YES

Use of the extra year for compliance of non-central entities (by )

YES

Mandatory for

Receiving and processing: National, regional and local contracting authorities

Standard(s)The European standard on eInvoicing is fully implemented. 
Platform

1) “MyData” application i.e. a digital financial information application for taxation managed by the Independent Authority of Public Revenue in Greece

2) National Interoperability Center managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance

3) Contracting Authorities Registry for eInvoicing managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance

4) A Web application for distributing the eInvoice to the competent Contracting Authorities managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance

5) IT Systems responsible for the accounting, acceptance, clearance and payment of eInvoices managed by the competent organisations

Use of CIUS and Extensions

YES Peppol BIS Billing 3.0 

Legislation

The transposition of the Directive 2014/55/EU into Greek law was adopted in the first quarter of 2019 (Law 4601/2019). The transposition aligns with the text and scope of the Directive however it mandates the issuance of two Joint Ministerial Decisions (JMDs), i.e. secondary level legislation, in order to stipulate the details regarding the adoption of the semantic data model of eInvoices and the architecture of eInvoicing in Greece.

The Ministerial Decision No. 1017 / 14.02.2020 (National Gazette, Issue B, Sheet 457) was issued by the Ministry of Finance, which is specifying the eInvoice format for B2B transactions (fully compliant to the European standard on eInvoicing and the chosen Peppol CIUS for B2G) [1],[2],[3].

Also, the Ministerial Decision  No. A.1035 / 18.02.2020 (National Gazette, Issue B, Sheet 551) was issued by the Ministry of Finance, which is stipulating rules and regulations regarding eInvoicing Service Providers.

For the alignment of the European semantic data model specifications of eInvoice with the procurement rules and financial procedures in Greece, two Joint Ministerial Decisions have been issued for further specifying and providing guidance on how to use it in public procurement (Government Gazette 2338 B' 02-06- 2021). In these Ministerial Decisions the four corner model interoperability architecture of Peppol eDelivery network was adopted (Government Gazette B '2425 18-06-2020).

eInvoicing platform and eInvoicing management solutions

The eInvoicing implementation in Greece consists of the following solutions that have been developed and supported by the General Secretariat of Information Systems for Public Administration of the Ministry of Digital Governance in cooperation with the General Secretariat of Fiscal Policy of the Ministry of Finance, the Ministry of Development and Investments and the Hellenic Single Public Procurement Authority:

  • An informative website for eInvoice in Public Procurement: This website includes all relevant information for: a) suppliers/contractors, b) eInvoicing services providers, c) contracting authorities, d) financial services responsible for clearing and paying invoices and d) audit services.
  • Contracting Authorities Registry for eInvoicing: A new registry that contains all the required information regarding the competent contracting authorities and their financial services for handling eInvoices. This registry was based on the information provided by the Hellenic Single Public Procurement Authority of Greece and provided a unique identifier for each contracting authority. Currently, more than 2,300 contracting authorities have been registered. Moreover, the appropriate amendments have been made in the Greek public procurement Law i.e. 4412/2016 to ensure that public contracts contain the required information for eInvoicing.
  • A Web application (EDHT) for distributing the eInvoice to the competent contracting authorities. This web application delivers eInvoices to contracting authorities and offers basic administration facilities to users. It provides the opportunity to the contracting authorities and Financial Service to visualise eInvoices and to inform suppliers/contractors on the handling status of eInvoices e.g., acceptance, rejection, payment etc.
  • National Interoperability Centre: The Interoperability Centre is responsible for receiving all the eInvoices by the suppliers/contractor through the certified eInvoice Service Providers and the Peppol network, routing them to the competent contracting authority. The Interoperability Centre has developed several online and web services to check the eInvoices, regarding their compliance with the specifications of European and national standards, to receive and transmit the eInvoices to competent public authorities for further processing and payment. Important information that is checked includes: a) the existence of the contracting authority based on the unique identifier of the Contracting Authorities Registry, b) the existence of the public contract that the eInvoice refers to, c) the budget d) the commitment required for the payment of the eInvoice. These services are addressed to either the eInvoicing Service Providers or the Public Authorities’ IT systems.
  • IT Systems responsible for the acceptance, clearance and payment of eInvoices: In this regard, two major horizontal systems have been adapted so that they can handle eInvoices i.e. the IT system for contracts funded by the Public Investment Fund and the IT system for the clearance and payment of the Central Government expenditures.

The format of the eInvoices exchanged between all parties is based on the EN standard.

The Interoperability Center of the General Secretary for Information Systems for Public Administration (GSIS PA), implemented and installed a Peppol Access Point (AP) for the reception of eInvoices of the Greek State and transmitting back responses.

After the initial semantic check of eInvoices by the AP, eInvoices are forwarded to the Interoperability Center. The Interoperability Center stores eInvoices and directs them to the respective Information Systems of the public bodies. eInvoices are made available with the use of web services.

In addition, the Interoperability Center manages the forwarding of replies by the public contracting authorities for the acceptance and payment or rejection of eInvoices, through SOAP web services. The General Accounting Office (GAO) back-office system, also operated by the General Secretariat for Information Systems of Public Administration will be able to handle standardised eInvoices for expense approval, processing and payment.

Moreover, the horizontal IT system responsible for the management of contracts funded by the Public Investment Fund is also capable of receiving eInvoices from the interoperability centre and process them until the respective payment or rejection. This system is managed by the Ministry of Development and investments in Greece.

Last but not least MyDATA is the platform in charge of receiving all the summary of eInvoices for B2B and B2G transactions. On this platform, the Greek authorities can process all the data and then create financial reports for each taxpayer in Greece.

Approach for receiving and processing eInvoices

The transfer method for myDATA is the myDATA Representational State Transfer Application Programming Interface (REST API). All entities that are obliged to apply the provisions of the Greek Accounting Standards, are obliged to transmit e-book data to Independent Authority of Public Revenues (A.A.D.E.), regardless of the type of the company (indicatively S.A., limited liability, private capital, limited or general partnership and others, as well as branches)[4].

The Peppol Access Point (AP) exclusively facilitating the issuers of the eInvoices enables the receiving of eInvoices from their ERP systems . Additionally, other systems, including the Peppol Access Point for the Public Administration Authorities are part of the National Interoperability Center of the General Secretariat for Information Systems of Public Administration at the Ministry of Digital Governance. Other Enterprise Resource Planning systems and standalone applications of the Public Authorities allow further processing of eInvoices, until their liquidation and payment.

The main eInvoice process flow scenario for public procurement includes the following steps:

  1. Preparation of eInvoice data by the supplier/contractor and transmission to an eInvoicing service provider.
  2. The eInvoicing service provider validates invoice data before submitting it, using the respective Interoperability Centre services.
  3. The eInvoicing service provider reports and registers the eInvoice, for taxation reasons, to “MyData” application i.e. to a digital financial information application for taxation operated by the Independent Authority of Public Revenue in Greece.
  4. The eInvoicing service provider prepares the eInvoice based on a) the European standard semantic model, b) the national specification that derives from the Joint Ministerial Decisions, and the Peppol Business Interoperability Specification.
  5. The eInvoicing service provider submits the eInvoice to the access point of the Interoperability Centre through the Peppol network.
  6. The Interoperability Centre receives and validates the eInvoice, according to the European and national rules for eInvoicing,
  7. The Interoperability Centre routes the eInvoice to the competent contracting authority or competent IT system of the public body,
  8. The competent contracting authority and financial service handle the invoice according to their internal procurement and payment practices using one of the IT systems or web application mentioned in the previous section. The competent authorities send the appropriate messages regarding the status of the processing of the eInvoice through the Interoperability Centre and the eInvoicing service providers to the supplier/contractor.

eInvoicing implementation in sub-central level contracting authorities 

These eInvoicing platforms and exchange services are now available for both central and sub-central administrations since 2020.

  1. “MyData” application i.e. a digital financial information application for taxation managed by the Independent Authority of Public Revenue in Greece.
  2. National Interoperability Center managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance, providing the following web services:
  • getInvoiceInfo (eInvoice reception from the systems of contracting public authority)
  • sendInvoiceResponse (transmission to the invoice issuer of the results from the processing of an eInvoice by the systems of public authority)
  • pdeCheckProject (validation checks of the project ePDE code)
  • sendInvoiceInfo (transmission of invoice data from the Governmental Peppol AP to National Interoperability Center)

3. Contracting Authorities Registry for eInvoicing managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance

4. A Web application for distributing the eInvoice to the competent Contracting Authorities managed by the General Secretariat for Information Systems of Public Administration (GSIS PA) at the Ministry of Digital Governance

5. IT Systems responsible for the accounting, acceptance, clearance and payment of eInvoices managed by the competent organisations

Status on the implementation of the European Standard on eInvoicing (EN)

The Greek authorities have completed the development and testing of their own Peppol Access Point (AP) implying the usage of  Peppol BIS Billing 3.0 which is based on the European standard on eInvoicing (EN 16931). The necessary fields and items of an eInvoice are outlined in the publication of the A. 1017/27-01-2020, which is the EN-compliant format used as well as in the relevant JMD regarding the semantic model [1].

For the uniform application of the procedure, in the Annex to the decision A.1138/2020 the document types are standardised and the data of such documents and accounting entries that are transmitted are described in detail [2].

Monitoring eInvoicing implementation 

A working group (WG) has been established at the Ministry of Finance, with the mandate to steer and monitor all the necessary tasks for enabling the eInvoicing implementation. Members of the WG are senior/executive employees from the Ministry of Finance, the Ministry of Digital Governance, the Court of Auditors, the Information Society S.A. and the Athens University of Economics and Business (AUEB).

This WG has been established as a part of the major Fiscal Reform that the Ministry of Finance is pursuing, with the goal to switch gradually all General Government Entities to accrual accounting.

eInvoicing implementation undergoes further testing, in the form of pilot operations for the entire year 2021. During this phase, the platforms of the participating invoice issuers, their eInvoicing and Peppol Service Providers, the platforms of GSIS PA and the receiving Public Authorities exchange eInvoices, based on real data and test data. Additionally, extensive training to the contracting public authorities and financial services is being implemented. 

Additional information

Greece participated in the Peppol Large Scale Pilot and tested the electronic procurement system for public administrations (e-Prior). e-Prior is an eProcurement system that facilitates standardised eProcurement document exchanges between a public administration and suppliers across Europe[5].

The project Interoperable eInvoicing in Greece (GRinv) funded by CEF program was a key initial implementation for e-Invoicing in Greece. This project aimed to implement an interoperable eInvoicing infrastructure in Greece via the Peppol ‘four corner model’ to process B2G eInvoices.

Due to the recent Ministerial Decision on certified eInvoicing service providers and the enforced electronic way of doing business, more private companies are using these well-established service providers to exchange eInvoices.


[1] (Inposia, 2021), [2] (Killinger, 2020), [3] (Avalara, 2021), [4] (Merz, 2020), [5] (Offerman, 2017)

Are you aware of further developments on eInvoicing B2G in this country? Contact us via the link Something wrong with this page? at the bottom of this page.
You can also access the 2016, 2017, 20182019 and 2020 eInvoicing Country Sheets via the eInvoicing User Community.

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Last updated:  Jul 01, 2021 08:17