Banking Law and Corruption-Related Banking Offences in Spain

Introduction

In Spain, “corruption-related banking offences” are not one separate criminal category. They arise where a bank, its directors, employees, customers, or intermediaries use banking activity to pay bribes, conceal illicit proceeds, misuse bank assets, falsify financial information, or channel improper advantages.

The central legal principle is important: a bank is not criminally liable merely because corrupt money passed through an account. Criminal exposure arises where the institution or its personnel knowingly participate, deliberately ignore clear warning signs, fail in legally required controls, or obtain a benefit from the offence.

Legal and Regulatory Framework

The main source is the Spanish Criminal Code (Código Penal).

Relevant offences include:

• Bribery of public officials (cohecho): Articles 419–427 criminalise giving, offering, requesting, or accepting an improper benefit connected with public duties. A banker may be implicated where an account, loan, payment vehicle, or shell company is knowingly used to deliver a bribe.
• Trading in influence (tráfico de influencias): Articles 428–430 cover using personal or official influence to obtain an administrative decision or economic benefit. Banking records can be crucial evidence where suspicious commissions are disguised as consultancy or loan repayments.
• Corruption in business (corrupción entre particulares): Article 286 bis covers unjustified benefits offered or received to improperly favour someone in commercial dealings. It can apply to procurement staff, credit officers, investment managers, and employees arranging banking or finance contracts.
• Money laundering (blanqueo de capitales): Articles 301–304 criminalise acquiring, possessing, converting, transferring, concealing, or using assets derived from crime, knowing their illegal origin. Corruption, fraud, tax offences, and embezzlement can all be predicate offences.
• Fraud and aggravated fraud: Articles 248 and 250 apply where deception is used to obtain loans, credit, investment, or payment funds. False borrower information, fake collateral, or sham transactions may expose both customers and complicit employees.
• Misappropriation and unfair administration: Articles 252 and 252 bis address misuse of entrusted assets. Bank directors or employees may be liable if they improperly use institutional funds, customer funds, or corporate expense facilities.
• False corporate information: Articles 290–294 punish false accounting, false corporate documents, and conduct that prejudices the company, shareholders, creditors, or market participants. This is especially relevant to misleading bank disclosures, valuations, and internal approvals.

Anti-Money Laundering Duties of Banks

Under Law 10/2010 on the Prevention of Money Laundering and Terrorist Financing, credit institutions are “obliged entities.” They must maintain controls designed to stop the financial system being used for criminal proceeds.

Key duties include:

• Customer due diligence and identification of the beneficial owner.
• Enhanced due diligence for politically exposed persons (PEPs).
• Understanding the purpose and expected nature of the business relationship.
• Ongoing transaction monitoring.
• Reporting suspicious activity to SEPBLAC, Spain’s financial intelligence authority.
• Maintaining records and internal audit trails.
• Training employees and appointing a compliance/control body.
• Avoiding tipping off the customer after a suspicious activity report.

A bank’s AML breach may result in administrative sanctions even if no employee is criminally convicted. However, serious and conscious failures can become evidence of criminal participation, money laundering, or corporate criminal liability.

Corporate Criminal Liability

Article 31 bis of the Criminal Code permits prosecution of a bank or other legal entity where offences are committed for its direct or indirect benefit by:

• Directors, legal representatives, or senior managers; or
• Employees acting under inadequate supervision and control.

A genuine compliance programme may protect the entity if it was implemented before the offence, independently supervised, properly funded, and effectively enforced. A document-only compliance system is insufficient.

Possible penalties include fines, suspension of activities, closure of premises, disqualification from public contracts or subsidies, judicial intervention, and in exceptional cases dissolution. For a bank, reputational damage, supervisory intervention, and loss of market confidence may be as serious as the criminal penalty.

Leading Case Laws

1. STS 154/2016, 29 February — Corporate criminal liability

This was a landmark Supreme Court decision confirming that companies can incur criminal liability. The Court stressed that corporate liability is based on the organisation’s own failure of control, not simply automatic liability for an employee’s conduct.

For banks, the lesson is clear: the prosecution must show an organisational defect, but ineffective AML controls, weak approval procedures, ignored alerts, or compromised compliance functions can support that finding.

2. STS 451/2018 — “Tarjetas Black” / Bankia case

The Supreme Court confirmed convictions of former directors and executives connected with Caja Madrid and Bankia for misuse of undisclosed corporate credit cards. The cards were used for personal expenditure outside legitimate remuneration and governance arrangements.

The case demonstrates that senior banking officers can face criminal liability where internal spending systems are used as a hidden private-benefit mechanism. Board approval does not legalise conduct that breaches duties to the institution.

3. STS 265/2015 — Self-laundering

The Supreme Court explained that not every use of criminal proceeds constitutes separate money laundering. There must be conduct directed at concealing or disguising the illicit origin of assets, or helping the offender avoid legal consequences.

This matters in banking investigations because transfers, withdrawals, and use of accounts must be assessed in context. Layered transfers, nominees, offshore entities, fictitious loans, and conversion into property may show the required concealment purpose.

4. STS 508/2015, 27 July — Malaya case

In the Malaya corruption proceedings, the Supreme Court dealt with extensive municipal corruption, bribery, influence peddling, and laundering structures. The case illustrated how corrupt proceeds can be moved through companies, intermediaries, and financial transactions to distance money from its criminal source.

For financial institutions, unusual payments linked to public contracts, politically exposed persons, unexplained foreign transfers, and shell-company activity require enhanced scrutiny.

5. STS 507/2020 — Gürtel case

The Supreme Court largely upheld major convictions arising from a corruption network involving public procurement, kickbacks, false invoicing, and laundering-related conduct. The decision illustrates that banking records, payment trails, corporate structures, and documentary evidence can establish the financial architecture of corruption.

The case is significant because corruption is often proved through combined circumstantial evidence rather than one direct payment labelled as a bribe.

6. Supreme Court approach to money laundering evidence

Spanish courts accept that the underlying crime may be established through strong circumstantial evidence. The prosecution does not always need a prior final conviction for the predicate corruption offence. However, it must prove that the assets derive from criminal activity and that the accused knew, or in relevant cases should have known, of that origin.

Enforcement and Supervision

Several authorities may act simultaneously:

• SEPBLAC: AML intelligence, inspection, and sanctions.
• Bank of Spain: prudential supervision of credit institutions and governance.
• CNMV: market and securities supervision where listed entities or investment activity are involved.
• Public Prosecutor’s Office and investigating courts: criminal investigation and prosecution.
• Audiencia Nacional: may hear major cross-border, organised, or complex economic-crime cases.

Conclusion

Spain treats corruption-related banking misconduct through a combined criminal, AML, corporate-governance, and supervisory system. The highest-risk areas are bribery payments disguised as commercial transactions, laundering through accounts and offshore structures, improper lending, misuse of institutional funds, and failure to investigate obvious red flags.

The practical rule for banks is simple: strong controls must be real, documented, independently tested, and capable of stopping suspicious activity. Where a bank knowingly facilitates corruption or tolerates serious control failures for institutional benefit, both individuals and the bank itself may face serious criminal and regulatory consequences.