myDATA, Greece's Electronic Compliance System

Declare tax and accounting information required by the IAPR through the new myDATA system.

Declare Through My Digital Accounting & Tax Application

myDATA is a platform created by Greece's tax authority, The Independent Authority for Public Revenue (IAPR), to digitize business tax and accounting information declaration.

All companies performing accounting, according to Greek accounting standards, will be required to transmit the information to the myDATA platform beginning in July of 2021.

What information must be declared in the myDATA portal?

Revenue Documents

Revenue Documents

All revenue documents, such as accounts receivable invoices, must be reported and classified by the issuer in real time.


Expense Documents

These will be classified by the receiver before the maximum VAT reporting period (last day of the following month). In addition to classifying the expense, the receiver will report it if the issuer has not declared the income.

Accounting Records

Accounting Records

The necessary entries must be transmitted to determine the annual accounting and tax results, up to the sixth month following the end of the fiscal year.

Payroll must be submitted within the deadline of the withholding tax return. 

myDATA - IAPR e-Books

The myDATA portal sets up two electronic accounting books with the declared information.

The books are checked against the VAT returns by the IAPR. Taxpayers will have 2 months to correct any discrepancies that may be detected, and thus avoid tax audits.

Record Book

Record Book

This contains revenue and expense documents, classification of these documents, as well as accounting adjustment entries.

Summary Book

Summary Book

This document reflects combined tax and accounting results based on information from the Record Book.

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