Hungary joins EU fraud watchdog

For five years, Hungary stayed outside the European Public Prosecutor's Office, the EU body with the power to investigate fraud against the Union's budget without waiting for national authorities to move. In Brussels, that refusal became a neat summary of Viktor Orbán's Hungary: happy to take EU money, deeply reluctant to accept EU scrutiny over how it was spent.

That position has now shifted. On 10 July, the European Commission confirmed Hungary as the EPPO's 25th member (EU Law Live, Devdiscourse/Reuters). The decision takes effect on 2 August (eucrim). But the legal door has opened before the Hungarian state has built the domestic apparatus needed for EPPO to bring a case.

Who gets to investigate

The first test is personnel. Hungary must decide who will act for EPPO inside the country. The Justice Ministry said on 22 July that a working group is preparing a constitutional amendment for the autumn, covering the European Prosecutor who would represent Hungary and the delegated prosecutors who would handle cases on Hungarian territory (24.hu). Criminal-procedure legislation is expected by early 2027.

The appointment route matters because it is where political control can be hidden in plain sight. Hungary nominates three candidates for its European Prosecutor seat. The Council of the EU, where national ministers sit, appoints one after consulting an independent panel. Delegated prosecutors then have to be placed inside the national system, with Hungarian police, auditors and courts required to cooperate.

That is the point at which membership becomes either real or decorative. If Budapest designs the rules so the government can shape who gets the jobs, EPPO's arrival will look better on paper than in practice. If the posts are properly insulated, Hungary will have accepted an outside prosecutorial check it resisted for half a decade.

The leverage behind the decision

The timing is not a mystery. Hungary's accession is part of a wider negotiation over roughly €10 billion in frozen EU recovery and cohesion funds. Cohesion money is the EU's main tool for narrowing economic gaps between regions; recovery funds were created after the pandemic. Both streams have been blocked for Hungary since 2022 over rule-of-law and anti-corruption concerns.

The Council linked those financial measures directly to procurement irregularities and weak prosecutorial follow-up (Council Decision 2022/2506). EPPO membership answers one part of that complaint, but only one. Hungary still faces 27 reform milestones due by 31 August and must separately persuade the Commission that the problems identified in 2022 have been fixed (EU Perspectives).

The Commission's 2026 Rule of Law Report gave Hungary credit for the EPPO move, while warning that prosecutorial independence and enforcement against high-level corruption remain weak points (European Commission). As we reported earlier this month, Hungary's own Integrity Authority found systemic overpricing built into public procurement even when the formal legal steps are followed (To Brief). No prosecutor, European or national, can fix that architecture on its own.

What EPPO can and cannot reach

EPPO's remit is precise. It prosecutes crimes against the EU's financial interests: fraud involving EU spending or revenue, corruption tied to EU funds, and cross-border VAT fraud above a €10 million threshold (Regulation 2017/1939). Domestic corruption with no link to the EU budget is outside its mandate (Le Club des Juristes).

There is also a time limit. According to Quotidiano, EPPO will have competence over qualifying offences committed from 1 June 2021, when the office began operating elsewhere. Anything before that remains with Hungarian prosecutors.

Poland gives a sense of what practical membership can look like. After Warsaw joined EPPO following its own rule-of-law confrontation, the office carried out investigative measures in July 2026 in a Katowice customs and VAT fraud inquiry (EPPO). Romania is the cautionary example: EPPO has been operational there since 2021, but the Commission's latest findings still pointed to weak progress on judicial corruption (G4Media). A European prosecutor can bring cases. It cannot rebuild the courts around them.

The accession decision is legally binding, and EPPO's reach in Hungary can extend back to mid-2021. The real signal will come with the autumn constitutional amendment. That will show whether Péter Magyar's government has accepted outside prosecution as a genuine constraint, or merely as another condition to be managed in the long argument over EU money.