European Anti-Fraud Office (OLAF)

OLAF (Office Europeen de Lutte Anti-Fraude) was established in 1999 as the successor to the Commission's Unit for the Coordination of Fraud Prevention. It operates with complete independence in its investigative function while remaining administratively within the European Commission. OLAF investigates fraud against the EU budget, corruption, and serious misconduct within the EU institutions, and coordinates anti-fraud cooperation with member states. For procurement professionals, OLAF is the body that investigates bid-rigging, collusion, conflicts of interest, and falsification in EU-funded contract awards.

What is OLAF?

OLAF conducts two types of investigation:

External investigations concern suspected fraud, corruption, or other illegal activity affecting EU financial interests by persons outside the EU institutions. This includes contractors who falsified invoices, suppliers who engaged in bid-rigging on EU-funded projects, and national officials who manipulated tender procedures to favour preferred suppliers. External investigations are conducted in cooperation with national law enforcement and judicial authorities.

Internal investigations concern suspected serious misconduct by EU officials or members of the EU institutions, including procurement irregularities in contracts awarded directly by EU bodies such as the Commission, EU agencies, and the European Investment Bank.

OLAF's investigative powers include access to accounts, documents, and computer systems; on-the-spot checks at the premises of economic operators; and the ability to interview witnesses. Following an investigation, OLAF issues a final report with recommendations to the relevant national authorities (for prosecution or financial recovery) or to the EU institution concerned (for disciplinary action or contract termination). OLAF itself cannot prosecute, sanction, or claw back funds: it refers its findings to those with the authority to act.

OLAF's work is subject to supervision by the newly created European Public Prosecutor's Office (EPPO), which since 2021 has had exclusive competence to investigate and prosecute offences affecting the EU budget in the 22 participating member states. OLAF refers cases involving criminal offences in EPPO member states to the EPPO and may conduct parallel administrative investigations.

Why it matters for bidders

Suppliers working on EU-funded projects, or bidding for contracts directly with EU institutions, operate in an environment where OLAF has jurisdiction. Key implications include:

Cooperation obligations. Economic operators receiving EU funds are required to cooperate with OLAF investigations, including allowing on-the-spot checks. Refusing to cooperate can itself be grounds for contract termination and exclusion from future funding.

Debarment risk. An OLAF finding that a supplier committed fraud or serious irregularity can result in exclusion from EU-funded contracts via the Early Detection and Exclusion System (EDES), operated by the Commission. Exclusion can last up to five years.

Cascade effects. National managing authorities that receive an OLAF finding related to their programmes often respond by imposing additional compliance requirements on all project promoters, regardless of individual fault.

Conflict of interest scrutiny. OLAF pays particular attention to undisclosed conflicts of interest in evaluation panels. Suppliers who have undisclosed relationships with evaluation panel members may find their awards voided and contracts terminated even if their bid was technically compliant.

Example

OLAF investigated a cohesion fund infrastructure programme where a national road authority had systematically awarded contracts to a single supplier across multiple tenders by setting technical specifications that only that supplier could meet. OLAF's report led to financial corrections, the recovery of EUR 45 million from the member state, and criminal referrals to the national prosecutor.

Frequently Asked Questions

Can OLAF investigate a complaint I make about a competitor winning unfairly?

OLAF investigates allegations of fraud and serious irregularity affecting the EU budget. A losing bidder who suspects bid-rigging or corruption in an EU-funded procurement can submit a complaint to OLAF. However, OLAF exercises prosecutorial discretion and prioritises cases with significant financial or institutional impact. For routine procurement disputes without a fraud element, national review bodies are the appropriate forum.

How does OLAF relate to the European Court of Auditors?

The European Court of Auditors audits the legality and regularity of EU spending and reports to the Parliament. OLAF investigates specific suspicions of fraud and misconduct. The Court may identify patterns that give rise to OLAF investigations; conversely, OLAF findings inform the Court's risk assessments.

What is the EDES system?

The Early Detection and Exclusion System is the Commission's register of economic operators excluded from EU funding due to OLAF findings, judicial convictions, or other serious grounds. Contracting authorities awarding EU-funded contracts are required to check EDES before award. A listing in EDES is a serious commercial risk for any supplier dependent on EU-funded work.