Tax Audit in Greece: Taxpayer Rights, Timelines and How to Challenge an Assessment

A tax audit in Greece is conducted by the Independent Authority for Public Revenue (AADE), which has broad powers to examine a taxpayer's books, accounts and transactions across multiple tax years. If an assessment is issued, the taxpayer must first exhaust a mandatory administrative review before the Dispute Resolution Directorate (DED) before proceeding to the courts. Understanding the precise sequence of procedural steps, and the rights available at each stage, is essential for any foreign company or investor operating in Greece.

The Legal Framework and the Role of AADE

The Greek tax audit system is governed primarily by the Code of Tax Procedure (Kodikas Forologikis Diadikasias), supplemented by directives implementing EU standards on automatic exchange of information and administrative cooperation in tax matters. AADE – the Independent Authority for Public Revenue – is the central body responsible for tax administration, audit selection, assessment and initial enforcement. Its operational independence from the Ministry of Finance is designed to reduce political interference, though in practice audit policy priorities are still informed by government revenue targets.

At the EU level, the administrative cooperation framework (DAC and its successive amendments) shapes how AADE exchanges information with tax authorities in other Member States, and how it handles cases involving cross-border structures. Foreign investors should be aware that AADE has access to financial account data and beneficial ownership information sourced through these channels, making thorough upfront tax risk management and tax structuring particularly important before entering the Greek market.

How a Greek Tax Audit Is Initiated

Audits may be initiated on a risk-based selection basis, following specific intelligence (including information exchanged under DAC), or as part of sector-wide examination campaigns. AADE distinguishes between a partial audit (limited to one or more specific tax types or issues) and a full audit (covering all tax obligations for the selected period). For corporate taxpayers and foreign-controlled entities, full audits frequently encompass corporate income tax, VAT, withholding tax obligations and transfer pricing documentation simultaneously.

Once selected, the taxpayer receives a formal notification of audit commencement. From that point, the right to amend filed returns is restricted. Foreign clients often underestimate the significance of this restriction: filing a voluntary correction after receiving audit notification carries a different legal status and, in many cases, does not prevent penalties from attaching to the amounts corrected.

Taxpayer Rights During the Audit

Greek tax procedure recognises a set of core taxpayer rights throughout an audit. These include:

• The right to be informed of the scope and legal basis of the audit at the outset.
• The right to representation by a lawyer, tax adviser or accountant at every stage of the administrative procedure. Engaging a qualified lawyer in Greece at the earliest opportunity is strongly advisable, particularly where the audit touches on cross-border arrangements.
• The right to submit documents and explanations in response to AADE's queries, within the timeframes set by the auditors.
• The right to a hearing before a provisional assessment is finalised, allowing the taxpayer to contest the auditor's preliminary findings.
• The right of access to the audit file, including the working papers and third-party information on which AADE relies, subject to confidentiality restrictions.

Where an audit involves a tax treaty – for instance, questions of residency, permanent establishment or the taxation of dividends and royalties paid to a foreign parent – the taxpayer has the right to invoke treaty protections explicitly and, in appropriate cases, to request the initiation of a mutual agreement procedure (MAP) under the relevant treaty or the EU Dispute Resolution Directive. Identifying the treaty angle early can materially alter the audit strategy.

If your business is currently under audit or has received a preliminary findings notice, our team is available to review the position and advise on next steps. Please contact us at info@ferrazwhitmore.com or visit our contacts page.

From Provisional Assessment to Final Assessment

Once AADE's audit is complete, the authority issues a provisional tax assessment. The taxpayer has the right to submit written objections within the period specified in the notice. AADE then considers those objections and issues a final assessment. The distinction between provisional and final is legally significant: the appeal deadlines that trigger the mandatory administrative review run from the final assessment, not the provisional one. Missing the applicable filing deadline at this stage extinguishes the right of appeal.

Common errors by foreign clients at this juncture include: treating the provisional assessment as a routine correspondence item rather than a trigger for immediate legal review; failing to gather supporting documentation within the response window; and assuming that their home-country transfer pricing documentation automatically satisfies the Greek standard. Greek transfer pricing rules require specific local file content, and documentation prepared to OECD standards for another jurisdiction may need to be supplemented or reformatted to meet AADE's expectations.

Anti-Avoidance Rules and Heightened Scrutiny

Greece has transposed the EU Anti-Tax Avoidance Directives (ATAD I and ATAD II) into domestic law. AADE is entitled to apply the General Anti-Avoidance Rule (GAAR) to re-characterise arrangements that lack genuine commercial substance. Controlled Foreign Company (CFC) rules, interest limitation provisions and hybrid mismatch rules are all operative. In practice, structures involving holding companies, intragroup financing or intellectual property arrangements are subject to a higher level of scrutiny.

Robust anti-avoidance rules analysis at the structuring stage – and contemporaneous documentation of the business purpose of intragroup transactions – significantly reduces the risk of a GAAR-based reassessment during audit. Where AADE does apply GAAR, the taxpayer bears the burden of demonstrating substance and commercial rationale.

The Mandatory Administrative Appeal to the DED

Before a taxpayer may challenge a final assessment before the courts, Greek law requires the filing of an administrative appeal with the Dispute Resolution Directorate (DED). This step is not optional: a direct court action without exhausting the DED stage is inadmissible. The DED conducts its own review of the merits of the assessment and may uphold, reduce or annul the assessment in whole or in part.

Key practical points about the DED stage:

• The appeal must be filed within the statutory period running from the date of the final assessment. This deadline is strictly enforced.
• The DED is empowered to examine both questions of law and questions of fact, making it a substantively meaningful review rather than a formality.
• A well-prepared DED submission – supported by financial analysis, expert opinions and clear legal argument – frequently achieves a partial or full reduction of the contested amount without the need to proceed to litigation.
• The DED stage also provides an opportunity to raise arguments based on applicable tax treaties and EU law that may not have been fully addressed during the audit itself.

Preparation of the DED submission is one of the most consequential steps in the entire dispute process. Factual or legal arguments not raised at the DED stage may be more difficult to introduce in subsequent court proceedings.

Judicial Challenge: Administrative Courts and the Council of State

If the DED upholds the assessment (in whole or in part), the taxpayer may challenge the outcome before the competent administrative courts. Greek administrative litigation proceeds through first-instance administrative courts and the Administrative Court of Appeal, with the Council of State (Symvoulio tis Epikrateias) acting as the supreme administrative court for points of law of broader significance.

In cases involving constitutional questions, fundamental EU law principles or novel points on the interpretation of tax treaties, matters may ultimately reach the Council of State. For disputes touching on capital markets or securities-related tax treatment, the litigation and arbitration practice in Greece often intersects with the regulatory framework overseen by the Hellenic Capital Market Commission. Similarly, corporate taxpayers registered through GEMI (the General Commercial Registry) should ensure their registration data and corporate filings are consistent with the positions taken in tax proceedings, as AADE has access to GEMI records.

Judicial proceedings in Greek tax cases can be protracted. Realistic planning should account for the possibility of multiple procedural stages before a final judicial determination is reached. Suspension of enforcement of the disputed assessment – pending the outcome of proceedings – is available in certain circumstances, subject to conditions set out in the Code of Tax Procedure.

Our tax disputes practice in Greece covers the full range of administrative and judicial challenge procedures, from DED submissions to Council of State proceedings. If you have received a final assessment or are considering a challenge, we would be glad to discuss the strengths and limitations of the available options. Write to us at info@ferrazwhitmore.com or visit our contacts page.

Key Cost Drivers in Greek Tax Disputes

The cost of managing a tax audit and any subsequent dispute in Greece is shaped by a number of factors, which foreign clients should consider at the outset:

• Complexity of the tax position: cases involving transfer pricing, intragroup financing, or hybrid structures require economic analysis and expert reports in addition to legal advice.
• Volume and location of documentation: where key records are held in another jurisdiction, gathering and translating them for Greek proceedings adds time and cost.
• Duration of the audit period under review: AADE may examine several tax years simultaneously, multiplying the scope of the exercise.
• Whether enforcement action is concurrent: if AADE initiates enforcement measures while the dispute is pending, separate proceedings to obtain suspension may be necessary.
• Language and local representation requirements: submissions to AADE, the DED and the courts must be in Greek. Foreign companies will require both in-country legal representation and, in most cases, coordination with their home-country advisers.

Common Errors by Foreign Clients: A Decision Checklist

Based on the procedural architecture described above, foreign companies and funds operating in Greece should consider the following before and during an audit:

• Has local transfer pricing documentation been prepared in a format that meets Greek requirements, and is it current for the years under review?
• Are the beneficial ownership and corporate structure records held at GEMI consistent with the group's tax filings?
• Has the applicable tax treaty been reviewed to identify reduced rates, exemptions or treaty-based procedural protections available to the entity?
• Has a Greek-qualified lawyer or tax representative been appointed to respond to AADE queries? Direct responses by foreign management without local legal review are a frequent source of procedural and substantive errors.
• Have anti-avoidance rules – including GAAR, CFC rules and interest limitation – been assessed in relation to the structures under audit?
• Are all deadlines for submitting objections, filing the DED appeal and commencing court proceedings firmly diarised? Deadline failures in Greek tax procedure are generally fatal.
• Has the possibility of suspension of enforcement been considered if the assessed amounts are material and potentially distortive of the business?

For a detailed discussion of your specific situation – whether at the audit, DED or judicial stage – please reach out to our team at info@ferrazwhitmore.com or through our contacts page. We also maintain comparative guidance on related procedures in other jurisdictions, including a detailed analysis of the tax audit and challenge process in Hong Kong, which may be useful for clients with multi-jurisdictional structures.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.