What is myDATA?
myDATA is Greece's digital reporting framework operated by AADE. In practical terms, businesses and professionals need to keep invoice data structured enough for reporting, review, corrections, and reconciliation. The details can depend on activity, entity type, invoice scenario, timing, and accountant guidance. For a freelancer, the hard part is often not understanding every technical field on day one; it is keeping the invoice record clean enough that the required workflow can be handled confidently.