Greece myDATA

What is myDATA?

The Greek government has implemented mandatory electronic books and accounting data reporting through myDATA. The Greek Independent Authority for Public Revenue (AADE) created the myDATA platform to collect and process accounting and tax data electronically.

myDATA, which stands for “my Digital Accounting and Tax Application,” applies to businesses keeping accounting records under Greek Accounting Standards. Through myDATA, AADE monitors revenue and expense transactions and updates taxpayers’ electronic books.

The myDATA platform contains two electronic accounting books belonging to taxpayers:

1. The Detailed Book / Analytical Records Book, where revenue and expense document summaries, classifications, and accounting entries are recorded.
2. The Summary Book, where the company’s accounting and tax results are shown on a monthly and annual basis.

Taxpayers transmit document summaries, classifications, and accounting settlement records electronically through the myDATA platform. These transmissions update the electronic books and support the determination of accounting and tax results.

What information should companies report to myDATA?

The issuer is generally responsible for transmitting the summary of the documents it issues, including B2B, B2G, B2C, wholesale, and retail documents.

1. Summary Documents: The Issuer is obliged to send the summary of all the documents she issues (B2B-B2G-B2C-Wholesale and Retail). The recipient sends the summary of the documents received only in the below cases:

          a) Retail documents. 

          b) Documents for purchase of goods and services from companies non-liable to follow Greek Accounting Principles (e.g. individuals, foreign companies outside Greece)

          c)Documents for purchase of goods and services from an issuer liable to Greek Accounting Principles only if the submission deadline was missed by the Issuer.

    2. Classifications: Classifications are used to classify revenue and expense data, such as sales, purchases of goods, and services. Both issuers and recipients may have classification obligations depending on the type of transaction and reporting scenario.

    3. Accounting Settlement Records: Accounting settlement records include entries used to determine accounting and tax results, such as payroll, depreciation, income settlement, and expense settlement records. These records are transmitted where required to complete the taxpayer’s electronic books and tax reporting position.

What Companies Must Declare Taxes Through MyDATA?

All companies keeping accounting records according to the Greek Accounting Standards will have to comply. Non-resident entities are generally outside the scope of myDATA unless they maintain Greek accounting records, have a Greek establishment, or otherwise fall under a Greek reporting obligation.

How do I use the myDATA platform?

You can send the summary documents:

1. directly from your ERP accounting software, 
2. through a service provider, 
3. manually filling the online form (for small number of documents), or 
4. using electronic tax registers (only for retail documents).

You can send the classifications and settlement documents:

1. directly from your ERP accounting software, or 
2. manually filling the online form.

What is the Compliance Deadline?

The myDATA reporting obligation has applied since 2021. Law 5073/2023 strengthened the practical role of myDATA by linking reported data more closely with VAT and income tax reporting. Taxable revenues and deductible expenses must align with the data transmitted to myDATA, supporting transparency and consistency between electronic books and tax returns.

Is e-invoicing & e-bookkeeping mandatory in Greece?

myDATA is primarily an electronic books and accounting data reporting framework. It does not, by itself, replace the commercial invoicing process between suppliers and recipients.

Electronic invoicing and myDATA reporting should be distinguished. E-invoicing concerns the issuance and exchange of invoices in electronic form, while myDATA concerns the reporting and classification of accounting and tax data to AADE.

The myDATA framework requires the electronic transmission of data related to invoices, credit notes, retail receipts, accounting entries, and other relevant documents. Delivery notes and e-Delivery obligations should also be treated separately from invoice reporting, as they relate to the monitoring of goods movement through myDATA.

How would SNI be helpful with the MyDATA E-book system?

SNI myDATA SAP Solution will:

• handle reporting of all the e-documents issued in SAP automatically in real time.
• extract invoice data from myDATA to the SAP system. 
• Transfer unique invoice numbers (MARKs) to the expense documents
• Classify and send all the revenue/expense documents. 
• Transmit all the accounting settlement documents for tax and fiscal results. 

One software is able to do all the steps and ensures you stay compliant. Moreover, it saves significant time and costs with your business processes.

An end-to-end solution for streamlined processes: all three major components of digital tax reporting in a single SAP solution:

First, it starts from the required data retrieval. Then, this retrieved data needs to be mapped and processed in order to prepare it as the tax authority’s requested format. Finally, this converted data shall be submitted to the Greece MyData portal. SNI solutions cover all these three major components in one single SAP solution which you would not need to look for any other external third party employment.