Corruption in Public Procurement 2026

Definition: Corruption in public procurement refers to the abuse of a public or private position of trust in the procurement process for private advantage – in particular bribery, acceptance of advantages, and collusive cooperation between bidders or between bidders and contracting authorities – which leads both to exclusion from the procurement procedure and to criminal prosecution.

Last updated: January 2026 · Legal basis: §§ 331 et seq. StGB; § 123 GWB; Art. 57 Directive 2014/24/EU; UN Convention against Corruption (UNCAC); GRECO

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Corruption as a systemic risk in public procurement

Corruption in public procurement is one of the most severe problems of public finance worldwide; according to OECD estimates, up to 25% of contract value is lost through corruption in public tendering procedures. Public procurement law itself – in its overall design of transparency, competition, documentation duties and legal remedies – is the most important structural instrument for preventing corruption. Nevertheless, corrupt actors attempt to undermine procedural safeguards.

The most common forms of corruption in public procurement are:

• Bribery of procurement officials: Influencing the evaluation decision through monetary payments or other advantages.
• Bidder collusion (bid rigging): Coordination of bids to artificially raise prices.
• Manipulated specifications: Tenders are drafted in such a way that only a specific bidder can meet the requirements.
• Conflicts of interest: Procurement officials have personal interests in a particular bidder.

Corruption as a mandatory ground for exclusion

§ 123 GWB (Art. 57 (1) Directive 2014/24/EU) stipulates that a final conviction for corruption-related offences constitutes a mandatory ground for exclusion from the procurement procedure. An undertaking must be excluded if its managing director or other acting persons have been finally convicted of any of the following offences:

• Bribery and acceptance of bribes (§§ 331–335 StGB)
• Bribery in commercial transactions (§ 299 StGB)
• Fraud and breach of trust (§§ 263, 266 StGB), insofar as procurement-relevant
• Money laundering (§ 261 StGB)
• Membership in a criminal organisation (§ 129 StGB)

Mandatory exclusion does not apply if the undertaking has taken self-cleaning measures that the contracting authority recognises as sufficient (§ 125 GWB).

Self-cleaning

Undertakings affected by an exclusion ground may demonstrate by means of self-cleaning measures that they will act reliably in the future, thereby overcoming the bar to participation. § 125 GWB requires for the recognition of self-cleaning:

1. Active compensation for damage (damages, repayment).
2. Transparent disclosure of the misconduct vis-à-vis authorities and contracting bodies.
3. Concrete organisational and personnel measures to prevent future violations (compliance system, code of conduct, training).

Prevention duties of contracting authorities

Contracting authorities are not merely passive recipients of bids; they bear active responsibility for the prevention of corruption in the procurement procedure. This includes:

• Four-eyes principle for evaluation decisions
• Conflict-of-interest checks for all persons involved in the procedure (§ 6 VgV)
• Rotation in long-term procurement procedures and repeated awards to the same contractor
• Procurement record as a documentation instrument ensuring traceability
• Reporting offices and whistleblower systems (whistleblower protection under HinSchG 2023)

Criminal law dimension

Corruption in public procurement is not only relevant under procurement law but also leads to criminal prosecution under §§ 331 et seq. StGB and the Act on Combating Corruption. For undertakings, an administrative fine against the association under § 30 OWiG, or – following the entry into force of the Corporate Sanctions Act – sanctions against legal persons are possible.

FAQ

Must a bidder be excluded for corruption? Yes, where there is a final conviction for any of the offences listed in § 123 GWB, exclusion is mandatory, unless sufficient self-cleaning has been demonstrated.

What is bid rigging in public procurement? Bid rigging refers to impermissible collusion between bidders regarding the design of their offers (prices, lots, withholding of bids), which distorts competition and is criminal under § 298 StGB.

How can a contracting authority avoid a conflict of interest? Through early declarations by all persons involved in the procedure regarding potential conflicts of interest and rigorous bias rules (exclusion of biased persons from the procedure).

Does the Whistleblower Protection Act also cover reports of procurement corruption? Yes, the Whistleblower Protection Act (HinSchG) protects persons reporting infringements of public procurement law or corruption-related offences.

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Last updated: January 2026 All information provided without guarantee. For legally binding advice, please consult a law firm specialising in public procurement law.