How to Challenge an Arbitration Award in Greece (law 5016/2023): 3‑month Set‑aside, Court of Appeals Route & Stay of Enforcement

Last updated: August 9, 2026

Understanding how to challenge an arbitration award in Greece is now more critical than ever, because Law 5016/2023 (published in FEK A’ 21/04‑02‑2023) has consolidated the grounds, tightened the deadline to a strict three‑month window, and confirmed the Three‑Member Court of Appeals as the exclusive annulment forum. Whether you are in‑house counsel facing an adverse international award rendered in Athens or Thessaloniki, or a dispute‑resolution manager coordinating enforcement across multiple jurisdictions, the procedural steps you take in the first days after service will determine whether set‑aside remains a viable option. This guide delivers the practitioner checklist, statutory mapping, stay‑of‑enforcement strategy and template annexes you need to act within the deadline.

• Deadline: Three months from service of the award (tolling applies if a correction or interpretation request is pending).
• Forum: Three‑Member Court of Appeals (civil council) of the district where the award was rendered.
• Grounds: Seven enumerated grounds under Law 5016/2023, mapped to New York Convention Article V.
• Stay: Filing the application does not automatically suspend enforcement, a separate stay motion and security are typically required.

Legal Framework, Law 5016/2023 and Interplay with the Greek CCP & New York Convention

Greece’s arbitration landscape underwent a structural overhaul when Law 5016/2023 replaced Law 2735/1999 as the primary statute governing international commercial arbitration. Published in the Official Government Gazette (FEK A’ 21, dated 4 February 2023), the new law brought Greek international arbitration into closer alignment with the UNCITRAL Model Law while preserving the domestic arbitration provisions of the Greek Code of Civil Procedure (CCP), particularly Articles 867–903.

For parties seeking to set aside an arbitration award in Greece, the key legislative layers are:

• Law 5016/2023, governs international arbitrations seated in Greece. It defines the grounds for annulment, the competent court, and the three‑month filing window.
• Greek CCP Articles 867–903, continue to govern purely domestic arbitrations and supply supplementary procedural rules where Law 5016/2023 is silent.
• New York Convention (1958), ratified by Greece, it determines when a foreign award can be refused recognition and maps closely to the set‑aside grounds under Law 5016/2023.

The table below highlights the most significant shifts between the prior and current regimes.

Topic	Pre‑5016 (Law 2735/1999)	Law 5016/2023 (Current)
Competent court for annulment	Court of Appeal (multi‑member), but prior text less explicit on bench composition	Expressly confirms Three‑Member Court of Appeals for international awards; clarifies grounds and timing
Time limit to apply	Three months (practice varied across districts)	Strict three‑month deadline from service of the award; tolling rules for correction/interpretation requests clarified
Public policy test	Broad standard; developing Areios Pagos case law	Re‑emphasises high threshold; maps to Article 33 of the Greek Civil Code and EU public‑policy jurisprudence

The Special Secretariat for Alternative Dispute Resolution (ADR Secretariat) within the Ministry of Justice also references Law 5016/2023 as the cornerstone of Greece’s modern ADR legal framework, underscoring its importance for both institutional and ad hoc arbitrations seated in Greece.

Who Can Apply, Where and When, Forum & the Strict Three‑Month Deadline

Any party to the arbitration who is aggrieved by the award may apply to have it set aside. The application must be filed before the Three‑Member Court of Appeals (sitting as a civil council) in the judicial district where the award was rendered. For awards issued in Athens, this is the Athens Court of Appeals; for Thessaloniki, the Thessaloniki Court of Appeals, and so on.

The three‑month clock, when it starts and when it pauses

Under Law 5016/2023, the three‑month deadline begins to run from the date the applicant is served with the award. This is not the date the award is rendered or signed, it is the date of formal service. The distinction matters because Greek procedural law requires service by a bailiff (dikastikos epimelistis) or equivalent formal channel for the clock to start.

If either party has submitted a request for correction, interpretation, or an additional award under the arbitration rules, the three‑month period does not begin until service of the tribunal’s decision on that request. This tolling mechanism prevents parties from being forced to file a set‑aside application while ancillary proceedings are still pending.

Example: An award is served on 1 May 2026. Absent any correction request, the absolute deadline to file a set‑aside application is 1 August 2026. If a correction request is pending, the clock resets from service of the correction decision.

Missing the three‑month deadline is fatal. Greek courts have no discretion to extend the limitation period for annulment applications, and industry observers expect no judicial softening of this position given the clarity of the statutory text.

Grounds to Set Aside an Arbitration Award, Detailed Checklist

Law 5016/2023 enumerates specific grounds on which a Greek court may set aside an arbitral award. These grounds mirror, but do not replicate word‑for‑word, the refusal grounds in Article V of the New York Convention. The practical effect is that a successful set‑aside at seat can also undermine enforcement abroad.

Below is a practitioner‑level mapping of each ground, the corresponding statutory reference, and the type of evidence courts typically expect.

Ground	Statutory Reference	Evidence / Pleading Focus
Invalid arbitration agreement or non‑arbitrability of the dispute	Law 5016/2023 (annulment provisions); NY Convention Art. V(1)(a)	Original contract and arbitration clause; analysis of capacity and subject‑matter arbitrability under Greek law
Lack of capacity of a party to conclude the arbitration agreement	Law 5016/2023; CCP supplementary provisions	Corporate registration documents; powers of attorney; evidence of legal incapacity
Breach of equal treatment or denial of due process	Law 5016/2023; NY Convention Art. V(1)(b)	Procedural orders and correspondence showing unequal opportunity to present a case; hearing transcripts
Arbitrators exceeded their mandate (ultra petita / extra petita)	Law 5016/2023; NY Convention Art. V(1)(c)	Comparison of prayer for relief (statement of claim) with operative section of the award
Irregular composition of tribunal or non‑compliance with agreed procedure	Law 5016/2023; NY Convention Art. V(1)(d)	Arbitration agreement; institutional rules; evidence of deviation from agreed appointment or procedural mechanism
Award conflicts with Greek public policy (ordre public)	Law 5016/2023; Art. 33 Greek Civil Code; NY Convention Art. V(2)(b)	Legal memorandum identifying the fundamental principle violated; Areios Pagos precedent establishing the high threshold
Award contains contradictions or is unintelligible in its reasoning	CCP domestic arbitration provisions (Art. 897 et seq.); applied by analogy for international awards where appropriate	Textual analysis of the award showing internal inconsistencies or absence of reasoning on material issues

Can an arbitration award be overturned on public policy grounds?

Yes, but Greek courts, and the Areios Pagos (Supreme Court of Cassation) in particular, apply a high threshold. The public policy ground is not a vehicle for re‑examining the merits. It is reserved for cases where the award violates fundamental principles of the Greek legal order, constitutional guarantees or mandatory EU law. Early indications from post‑5016/2023 practice suggest courts will continue to interpret this ground narrowly, consistent with EU and New York Convention jurisprudence.

Step‑by‑Step: How to Challenge (Set Aside) an Arbitration Award in Greece

The following procedural checklist walks through every stage of an annulment application under Law 5016/2023, from the moment you receive an adverse award to the filing and hearing.

Immediate actions (Days 1–7)

1. Record the service date. Confirm the exact date of service by obtaining a copy of the bailiff’s service report. This date starts the three‑month clock.
2. Preserve all evidence. Secure the complete arbitration file: submissions, procedural orders, hearing transcripts, expert reports, and all correspondence with the tribunal and opposing party.
3. Instruct Greek litigation counsel. If you do not already have Greek counsel on record, engage a commercial litigator with experience in arbitration annulment proceedings before the Court of Appeals.
4. Assess whether a correction or interpretation request is pending. If so, the three‑month deadline may be tolled, but confirm this with counsel before relying on it.
5. Evaluate the need for an immediate stay of enforcement. If the opposing party is likely to pursue enforcement while the set‑aside is pending, prepare a stay motion in parallel.

Drafting the application (Days 7–30)

1. Identify the ground(s). Map your factual case to one or more of the statutory grounds in Law 5016/2023. Each ground must be pleaded with specificity, Greek courts will not infer grounds not expressly raised.
2. Compile required exhibits. The application must be supported by:
   • A certified copy of the arbitral award (original language and, if necessary, a certified Greek translation).
   • The arbitration agreement or clause.
   • Proof of service of the award (bailiff certificate).
   • Relevant procedural orders and hearing records.
   • Any documents evidencing the procedural irregularity, excess of power or public‑policy violation alleged.
3. Translation requirements. If the award or supporting documents are in a language other than Greek, certified translations must accompany the filing. Engage a sworn translator early to avoid delays.
4. Calculate court fees. Filing fees at the Court of Appeals are calculated based on the value of the dispute. Obtain a fee estimate from the court registry or your counsel before filing.
5. Draft the application. The application (aitisi akyrosis) must identify the parties, the award, the grounds relied upon with full statutory references, and the relief sought (annulment of the award in whole or in part).

Filing and service (Days 30–45)

1. File at the Court of Appeals registry in the district where the award was rendered.
2. Serve the application on the respondent through a bailiff, together with a summons to appear.
3. File the stay motion (if applicable) concurrently or as soon as possible after the main application. The stay motion is heard separately (see below).

Hearing and decision

After filing, the court registry schedules the matter for hearing. The Three‑Member Court of Appeals may hear the case in council (without oral argument) or grant an oral hearing depending on the complexity of the issues and the parties’ requests. The likely practical timeline from filing to hearing is several months, depending on the court’s caseload, but the critical step is filing within the three‑month statutory window.

Forum Mechanics, Filing to the Three‑Member Court of Appeals

The Court of Appeals arbitration Greece route is straightforward in principle but has procedural nuances that can catch unfamiliar litigants off‑guard.

Bench composition and hearing format

The Three‑Member Court of Appeals sits as a panel of three appellate judges. For set‑aside applications under Law 5016/2023, the court typically sits in council (en symvoulio), meaning the panel reviews the application, supporting documents and written submissions without a full oral hearing. However, parties may request, and the court may grant, an oral hearing, particularly in complex cases or where factual disputes require witness examination.

What comes after the Court of Appeals decision?

If the set‑aside application is dismissed, the applicant may seek review before the Areios Pagos (Supreme Court of Cassation), but only on points of law, not on factual findings. Cassation review is a narrow remedy: it does not involve re‑examination of evidence or a fresh assessment of the merits. If the award is annulled, the winning party in the original arbitration may appeal the annulment decision to the Areios Pagos on the same limited grounds.

Businesses operating in Greece, including those navigating the Greece property law changes 2026 or those who recently learned how to start a business in Greece as a foreigner, should be aware that commercial arbitration is a common dispute‑resolution mechanism in major contracts and joint ventures, making familiarity with the annulment route essential.

Stay of Enforcement, Strategy, Security and Interim Relief

One of the most pressing concerns for a party seeking to challenge an arbitration award is whether the opposing party can enforce the award while the set‑aside application is pending. The answer under Greek law is clear: filing a set‑aside application does not automatically suspend enforcement. A separate motion for stay of enforcement must be filed.

How to request a stay of enforcement in Greece

The stay motion is filed before the same Three‑Member Court of Appeals hearing the annulment application. In urgent cases, interim measures may be sought before the President of the Court of Appeals sitting as a single judge for interim relief. The following criteria are typically assessed:

• Prima facie case on the merits: The applicant must demonstrate that the set‑aside grounds are not manifestly unfounded.
• Balance of convenience: The court weighs the risk of irreparable harm to the applicant if enforcement proceeds against the prejudice to the award creditor if enforcement is stayed.
• Security (guarantee): Courts almost always condition a stay on the applicant posting security, typically a bank guarantee covering the full or partial amount of the award plus interest and costs. The quantum and form of security are at the court’s discretion.

Practical tips for the stay motion

• File early. Do not wait until the hearing date for the main annulment application. File the stay motion as soon as the set‑aside application is lodged.
• Prepare the bank guarantee in advance. Coordinate with your bank to have a draft guarantee letter ready before filing the stay motion. Courts may deny a stay if the applicant cannot demonstrate the ability to post security promptly.
• Address the balance of harm explicitly. A stay motion that merely asserts “irreparable harm” without particularised evidence is unlikely to succeed. Detail the specific assets at risk, the enforceability exposure in Greece, and the difficulty of recovering sums if the award is later annulled.
• Consider the opposing party’s enforcement timeline. If the award creditor has already applied for enforcement (exequatur), the urgency of the stay motion increases significantly. Monitor the enforcement docket in parallel.

Industry observers expect that Greek courts will continue to grant stays selectively, requiring meaningful security and a credible prima facie showing on at least one annulment ground. The stay of enforcement arbitration Greece landscape remains discretionary, and outcomes vary by panel.

Tactical Considerations & Cross‑Border Enforcement Impact

Where the arbitration is seated in Greece, a successful set‑aside under Law 5016/2023 removes the award’s legal basis at its origin. Under Article V(1)(e) of the New York Convention, enforcement courts in other contracting states may refuse to recognise an award that has been set aside at the seat. However, this is a discretionary ground, some jurisdictions (notably France) have enforced awards that were annulled at the seat, applying their own public‑policy analysis.

Multi‑jurisdictional enforcement risk management

If the opposing party has commenced or threatens to commence enforcement in multiple jurisdictions simultaneously, the party seeking annulment should:

• Notify enforcement courts. Inform courts in other jurisdictions of the pending set‑aside proceedings in Greece and provide certified copies of the application.
• Seek adjournment of foreign enforcement. Under Article VI of the New York Convention, enforcement courts may adjourn the decision on recognition pending the outcome of the set‑aside in the country of origin.
• Use security to limit exposure. Posting security at the Greek Court of Appeals may also serve as evidence of good faith in foreign enforcement proceedings, supporting a request for adjournment.
• Coordinate across counsel. Ensure that Greek litigation counsel and foreign enforcement counsel are operating from the same factual record and strategic framework.

The practical effect of these steps is to centralise the dispute at the seat and minimise the risk of inconsistent outcomes across jurisdictions. For companies with operations or assets across the EU and beyond, this coordination is not optional, it is a strategic necessity.

Practical Templates & Annexes

The following skeleton documents are provided for reference only. Each must be adapted to the specific facts, the applicable arbitration rules, and the requirements of the particular Court of Appeals registry. All documents should be prepared by, or under the supervision of, qualified Greek litigation counsel.

Template A, Application to set aside (skeleton)

• Heading: “To the Three‑Member Court of Appeals of [District]”
• Parties: Full legal names, registered addresses and legal representatives of applicant and respondent.
• Award identification: Date, reference number, names of arbitrators, seat, and governing arbitration rules.
• Service date: Exact date of formal service of the award, with reference to the bailiff’s certificate.
• Grounds: Each ground pleaded with full statutory citation (Law 5016/2023, article number), factual basis, and supporting evidence referenced by exhibit number.
• Relief sought: Annulment of the award in whole or in identified part(s).
• List of exhibits: Numbered and described (certified award, arbitration agreement, proof of service, procedural record, expert reports, etc.).

Template B, Request for stay of enforcement (skeleton)

• Heading: “To the President of the Court of Appeals of [District] / Three‑Member Court of Appeals (interim measures)”
• Cross‑reference: Reference to the pending set‑aside application (file number and date).
• Prima facie case: Summary of the annulment ground(s) with supporting evidence.
• Irreparable harm: Particularised description of assets at risk if enforcement proceeds.
• Security offered: Description of proposed bank guarantee (issuing bank, amount, duration, beneficiary).
• Relief sought: Stay of enforcement of the award pending determination of the set‑aside application.

Template C, Affidavit checklist

• Identity and authority of the deponent (corporate representative or legal counsel).
• Chronology of the arbitration proceedings.
• Date of service of the award and any correction/interpretation decisions.
• Summary of the irregularity or ground relied upon.
• Description of enforcement risk and assets in the jurisdiction.
• Statement of truth and signature.

Template D, Schedule of critical dates

Event	Date	Deadline / Action
Award rendered	[Date]	N/A, clock does not start until service
Award served	[Date]	Three‑month clock starts
Correction/interpretation request filed	[Date, if applicable]	Clock tolled until service of tribunal’s decision
Tribunal’s correction/interpretation decision served	[Date, if applicable]	Three‑month clock restarts
Set‑aside application filing deadline	[Date, 3 months from relevant service date]	File at Court of Appeals registry before this date
Stay motion filing	[ASAP after main application]	File concurrently or within days of the main application

These templates should be treated as starting frameworks. Greek procedural requirements, including formatting, stamping, translation certifications and fee calculations, vary by registry and must be confirmed before filing.

Conclusion & Next Steps

Knowing how to challenge an arbitration award in Greece under the current Law 5016/2023 framework is essential for any party that has received an adverse award rendered at a Greek seat. The three‑month deadline is absolute, the grounds are enumerated and must be pleaded with precision, and the stay of enforcement is never automatic. Acting within the first days of service, preserving evidence, engaging counsel, and preparing parallel stay motions, is the difference between preserving your rights and losing them by default. Businesses operating in Greece across all sectors, from those managing property transactions to those pursuing family reunification processes, should ensure their arbitration clauses and dispute strategies account for this annulment landscape.

For tailored guidance, consult a qualified Greek commercial litigation practitioner through the Global Law Experts lawyer directory.

Sources

1. Hellenic Parliament, Law 5016/2023
2. Gov.gr, Official Government Gazette (FEK) Search
3. Special Secretariat for Alternative Dispute Resolution, Legal Framework
4. E‑Nomothesia, Law 5016/2023 Full Text
5. EUR‑Lex, ECLI:EU:C:2023:633 (Public Policy & Enforcement)
6. Areios Pagos, Decision 1312/2022
7. European e‑Justice Portal, Time Limits on Procedures (Greece)