Most corruption is discovered because someone spoke up: an employee who saw an invoice that made no sense, a civil servant asked to sign off on a doubtful contract, a supplier who was told that a “fee” would help their offer. Audits and investigations depend on information that only people close to the events can provide.
Yet many people stay silent. In the 2017 Special Eurobarometer, as reported by Transparency International EU, 81% of respondents who had experienced or witnessed corruption said they had not reported it to anyone, and nearly half of Europeans did not know where they could report it. Many feared legal or financial consequences, and nearly a third thought that people who report corruption are not protected.
The fear is understandable, and it is the reason EU law now gives people who report wrongdoing a set of rights. This page explains where to go, what to expect and how the law protects you. It is general information, not legal advice. If your situation is complex or risky, consult a lawyer or a specialised support organisation before you act.
A short checklist that helps your report be taken seriously, and keeps you safe.
Dates, names of institutions, amounts and the documents where the facts appear. Separate what you saw from what you suspect.
Internal channel, national authority, EPPO or OLAF, depending on who is involved and whose money it is.
Stick to facts you have reasonable grounds to believe. Attach copies of documents that you are entitled to share.
Keep a record of your report and any reply, and take legal advice if you fear retaliation. Do not go public before checking the conditions.
The right place depends on what you saw and whose money is involved.
National authorities. Most corruption concerns national or local budgets and officials. In that case the competent bodies are the national police, public prosecutors or a dedicated anti-corruption agency. Many countries also have channels inside public bodies and large companies.
The European Public Prosecutor’s Office (EPPO). If you suspect a crime that harms the EU budget, such as fraud with EU funds, corruption affecting EU money, money laundering or cross-border VAT fraud, you can report it to EPPO. Anyone can do so, whether an EU citizen or not, a private individual or a company, provided there are reasonable grounds to suspect an offence. Reports go through the “Report a crime” web form and may be written in any official EU language. After submitting, you receive an acknowledgement with a registration number.
The European Anti-Fraud Office (OLAF). OLAF investigates fraud and serious irregularities affecting EU funds, and serious misconduct by staff or members of EU institutions. You can contact OLAF anonymously and without formalities, using its Fraud Notification System, in any of the 24 official EU languages, or by post to the European Commission, European Anti-Fraud Office (OLAF), 1049 Brussels, Belgium. The more precise and documented your information, the more useful it is.
The two bodies work together. EPPO is a prosecutor and handles criminal cases, while OLAF conducts administrative investigations. OLAF passes on to EPPO any conduct that EPPO may prosecute, so reporting to either one is a reasonable start.
Directive (EU) 2019/1937, known as the Whistleblower Directive, sets minimum standards that apply in all Member States. In short:
The deadline for Member States to transpose the directive was December 2021. How well it works in practice differs from one country to another, so check the rules and the competent authority in your own country.
If you work for a public body or a company, the first option is often the internal channel. Under the Whistleblower Directive, public bodies and private organisations above a certain size must provide a way to report concerns safely, with a person or department designated to receive reports, keep them confidential and follow up. Smaller organisations in some sectors are covered too, and national rules can go further.
Internal reporting can be the quickest way to stop a problem, and it is often the expected first step. The Directive nevertheless does not oblige you to use it first: you may go directly to a competent external authority, for example if you fear retaliation, if you do not trust the internal channel, or if the people at the top are involved. Choose the route that realistically gives your report the best chance of being handled properly, and keep a record of what you submitted and when.
Short answers to what people ask most often before they report.
OLAF accepts reports without a name and without formalities. EPPO collects only the personal data you choose to provide. Rules for national channels differ, and some countries do not process anonymous reports in the same way. Keep in mind that an anonymous report is harder to follow up, because investigators cannot ask you questions.
No. For EPPO it is enough that there are reasonable grounds to suspect an offence. Give as much precise and documented information as you can, and leave the investigation to the authorities.
Then the competent authority is usually national: the police, the public prosecutor or an anti-corruption agency. EPPO and OLAF deal with crimes and irregularities that affect the financial interests of the European Union.
Public disclosure is protected under the Whistleblower Directive only in specific circumstances, for example if you reported through the official channels and nothing appropriate was done, or if there is an imminent danger to the public interest. Seek legal advice before going public.
Yes, if you had reasonable grounds to believe that the information was true when you reported. Knowingly false reports are not protected and can have legal consequences.
Managers and employers have an interest in creating channels that people trust. A safe internal channel allows problems to be fixed early, before they become a scandal or a criminal case. Good practice includes naming an impartial person or team to receive reports, guaranteeing confidentiality, acknowledging reports within seven days, providing feedback within three months, and making it very clear that retaliation will have consequences.
It also means training managers to respond well. A person who raises a concern needs to be heard and thanked, not questioned about their motives. Organisations that react to a report by punishing the messenger teach everyone else to stay silent, and often end up with a much bigger problem later.
A report is the start of a process, not the end of it. The authority will normally confirm receipt and assess whether the facts fall within its remit. If they do, an investigation may follow, which can take months or years. You may not be told details, because investigations are confidential and the rights of suspects must be respected.
Reports do lead somewhere. In 2025 EPPO processed 6,966 crime reports and opened 2,030 new investigations. In the same year it filed 275 indictments against 1,438 people, and its conviction rate in cases that reach judgment is close to 95%. Not every report becomes a case, and a suspicion is not proof, but the system does produce results.
Reporting wrongdoing can be stressful, even when the law is on your side. It helps to talk to someone you trust and to a lawyer or advisory service before you act, and to think about how you will handle the time between the report and the outcome. Many countries have organisations that provide free, confidential advice to whistleblowers and, in some cases, legal support.
Keep your report factual, avoid discussing it widely in the meantime, and do not take documents you are not entitled to take. Staying calm and methodical protects both you and the credibility of your case.
Fear of reporting is not irrational. Many Europeans doubt that wrongdoers face consequences: in the 2024 Eurobarometer, 65% said that high-level corruption cases are not sufficiently pursued. When people believe that nothing will happen, or that they might pay a price, they stay silent.
The EU is trying to change that. Directive (EU) 2026/1021 on combating corruption, published in May 2026, harmonises corruption offences and penalties across Member States, and Member States must bring it into national law by June 2028. Together with the Whistleblower Directive, it is meant to make reporting both safer and more likely to lead to results. Whether it succeeds will depend on how national authorities apply it.
What you can do now is to inform yourself, use the protected channels, and, where possible, seek support. Organisations that advise whistleblowers exist in many countries, and legal advice before reporting is a sensible precaution.
Corruption thrives where decisions are made out of sight and nobody is held to account. It is weakened by the opposite: open public contracts, accessible data, independent prosecutors and a free press. Each of these makes wrongdoing harder to hide and easier to prove, and each depends on citizens who know what to look for.
You do not have to be an investigator to help. Learn the warning signs, such as unusually restrictive tenders, contracts split to avoid scrutiny or officials with undisclosed interests. If you suspect wrongdoing, report it to the competent national authority, to the European Public Prosecutor's Office (EPPO) or to the European Anti-Fraud Office (OLAF). EU rules on whistleblower protection exist so that people who speak up in good faith are shielded from retaliation. A suspicion is not proof, so the Calculator presents only what is publicly documented, and leaves guilt to the courts.