With Law 5104/2024, titled "Code of Tax Procedure and other provisions," a new, modern framework was introduced in the country’s tax administration, replacing Law 4987/2022, which had ratified and codified Law 4174/2013. The current Code of Tax Procedure (CTP) reshaped the relationship between taxpayers and the Tax Administration, clearly defining their rights and obligations at all stages of the tax process.

Law 5104/2024 established the procedure for determining, certifying, and collecting public revenues, simplifying the penalty system in cases of non-compliance. One of its most significant innovations was the digitalization of the tax process, through the utilization of modern technological tools and applications.

At the same time, clear time limits were set for the duration of tax audits, with the basic limit being one year from the notification of the audit order, thus enhancing legal certainty and transparency.

Finally, Law 5104/2024 also regulated specific issues concerning the guarantees of the Hellenic Republic, the powers of the Ministry of National Economy and Finance, as well as digital notification procedures, aiming at saving administrative time and resources and strengthening citizens' trust in the Tax Administration.

Structure and content of Law 5104/2024:
The Code consists of 86 articles, distributed in thirteen parts and an appendix, covering the entire spectrum of the tax procedure:

• Part A (articles 1-9): General provisions, definitions, scope of application, notification of acts.
• Part B (articles 10-12): Tax Registry, proof of tax compliance.
• Part C (articles 13-21): Keeping accounting records, provision of information, tax confidentiality.
• Part D (articles 22-24): Submission and amendment of tax returns.
• Part E (articles 25-26): Prior approvals of intra-group transfer pricing.
• Part F (articles 27-35): Tax audit, indirect audit methods, administrative assistance.
• Part G (articles 36-39): Tax determination, limitation periods.
• Part H (articles 40-51): Tax collection, public safeguards, enforcement, assistance in claim collection.
• Part I (articles 52-71): Imposition of interest, fines for tax offenses.
• Part J (articles 72-74): Special administrative procedures, administrative appeal.
• Part K (articles 75-78): Tax certificate.
• Part L (articles 79-82): Tax evasion crimes and their treatment.
• Part M (articles 83-86): Authorizing, transitional, final, and repealing provisions.

This edition:
The two-volume edition titled "Tax Procedure according to Law 5104/2024 – Theory, Jurisprudence, Practice" constitutes the most comprehensive aid for every professional accountant-tax expert, lawyer, or economic science researcher. The work includes:

• Detailed article-by-article presentation of the current CTP (Law 5104/2024 – codified with Law 5222/2025), fully updated with the recent decision A.1134/2025.
• Updated with E.2059/2025 regarding the imposition of fines for procedural violations of the CTP.
• More than 160 practical examples clarifying the application of the provisions.
• More than 40 useful tables, focusing on fines per violation, based both on the new Code and the previous Law 4987/2022.

This edition serves as a valuable reference tool for daily professional practice, as well as a substantial contribution to the understanding and proper application of the tax framework.