The digital platform myDATA (My Digital Accounting and Tax Application) is one of the most significant steps towards the digital transformation of accounting and tax processes in Greece. The need for immediate and accurate transmission of tax data and documents through a unified platform highlights the importance of proper planning and precise adherence to procedures, both for businesses and accountants.

This book, "Digital Platform myDATA - Movement – Invoicing," aims to provide a comprehensive tool for understanding and implementing the modern tax obligations imposed by the myDATA system, as well as the procedures for invoicing and the movement of goods. It is aimed at accountants, financial advisors, and entrepreneurs seeking practical guidance on electronic books and the application of legislation.

Despite the problems and dysfunctions that still persist, the correct understanding and use of myDATA is crucial for the success of its implementation. Businesses that adapt to the new requirements will be able to manage their accounting records accurately and swiftly, avoiding fines and penalties that may arise from non-compliance.

This guide aims to address all questions that may arise during the implementation of the system, providing both theoretical knowledge and practical instructions for everyday use of the platform. In a clear and detailed manner, the book is structured into eleven chapters, covering a wide range of topics related to maintaining accounting records, issuing and transmitting invoices, the obligations of businesses, and penalties in case of violations.

Furthermore, it includes numerous examples, step-by-step instructions, and images that simulate the use of the platform, facilitating the understanding of practical application. The book is structured into eleven (11) chapters that cover in detail topics such as:

• Greek Accounting Standards (GAS), categorization of businesses, invoicing, and movement
• Procedures for transmitting data to the AADE and the related obligations, exceptions, and penalties.
• Accountants' obligations in using the myDATA platform, with an emphasis on data verification.
• Data transmission procedures for retail transactions, wholesale, and management of documents.
• How to transmit specific cases (tourism agencies, hotel businesses, insurance companies, import files, lawyers, margin businesses).
• Channels of electronic transmission, such as ERP, FHM, and providers.
• Practical examples and questions answered by the scientific team of Astbooks.
• Manuals and images for using the myDATA platform.
• Standardizations of documents.

New additions in the latest edition: the edition includes all the latest changes regarding digital movement documents (digital delivery note), the integration of FHM with POS, while all fines have been updated based on the new KFD (5104/2024) as well as the related provisions of the new VAT Code (5144/2024).