Portuguese Banks Escape €225M Fine as Court Rules Banking Cartel Case Time-Barred

Portugal's competition watchdog has issued a sharp rebuke to financial institutions and their trade association following parliamentary hearings that exposed deep disagreement over the so-called "banking cartel" case—a decade-long saga that ended with €225M in penalties being nullified on technical grounds.

Why This Matters

• No money recovered: 11 banks avoided paying €225M in fines after a statute-of-limitations ruling wiped out sanctions for information-sharing between 2002 and 2013.

• Legal loophole closed—but only for future cases: A 2022 amendment suspends limitation periods during appeals, yet current proceedings remain vulnerable.

• Parliamentary showdown: The Portugal Competition Authority (AdC) accused lenders of "whitewashing" proven misconduct, while the Portuguese Banking Association (APB) invoked constitutional innocence guarantees, triggering anger from lawmakers.

The controversy centers on whether the banks colluded to coordinate mortgage pricing or simply exchanged market data in an era of limited public information. Courts confirmed the illegality of the conduct at multiple levels, yet the collapse of the enforcement process has left residents wondering whether lenders ever faced real accountability—and whether their mortgage costs were inflated during one of the country's most explosive credit booms.

The Authority's Frustration Spills Into Public View

Nuno Cunha Rodrigues, president of the AdC, told the Parliament's Budget, Finance and Public Administration Committee this week that he felt "perplexity" watching banks attempt to reframe behavior that had been "judicially proven." He noted the hearing had morphed into "a kind of appeals court," with institutions revisiting settled facts.

His remarks came after the Portuguese Banking Association defended members by citing Article 32 of the Constitution, which presumes innocence until a final verdict. APB president Vítor Bento argued that because the case expired before reaching a conclusive judicial ruling, "nothing was definitively proven" and no harm to customers was established.

That defense provoked a visceral response from lawmakers. Socialist deputy Miguel Matos said the APB's stance "should make you blush," comparing the banks' legal strategy to that of a high-profile politician fighting his own statute-of-limitations battle. Chega deputy Eduardo Teixeira called the rhetoric undignified, warning that relying on procedural expiration damages public trust in a sector the economy depends on.

What the Banks Were Accused of Doing

Between 2002 and 2013, 11 lenders—including state-owned Caixa Geral de Depósitos (CGD), Millennium bcp, Santander Totta, BPI, and Montepio—systematically exchanged non-public strategic data, according to the AdC's investigation. The information traded included:

• Future spreads on home loans and other credit products

• Risk variables each bank considered when granting loans

• Individualized production data from the previous month's lending activity

Rodrigues emphasized that this was "strategic, non-public information capable of reducing competitive uncertainty" and facilitating alignment in a concentrated market with high barriers to entry. The conduct was initiated by a whistleblower tip from Barclays, which secured immunity under the AdC's leniency program.

In September 2024, the Competition Court upheld the AdC's €225M sanction, ruling that "collusion" occurred and that banks "aligned commercial practices." Crucially, the court found that no bank except Barclays demonstrated critical judgment about the legality of the exchanges. The European Court of Justice also confirmed that systematic swapping of future strategic data among competitors constitutes a "restriction by object"—meaning it is inherently anti-competitive regardless of proven consumer harm.

How the Case Collapsed

Despite multiple judicial confirmations of wrongdoing, the penalties evaporated in February 2025 when the Lisbon Court of Appeal declared the infractions time-barred. The ruling hinged on how suspension periods were calculated while the case was under review by EU courts.

The AdC had launched its probe in 2012, and the administrative process took seven years—though Rodrigues stressed that 22 months of that span involved periods when the authority was "legally prevented from acting." Evidence remained under judicial control, and interlocutory appeals with suspensive effect froze the timeline. Those suspension orders were later reversed by the Lisbon appeals court, but by then, critical months had been consumed.

Under the law in force at the time, the 10.5-year limitation window ran out. According to the AdC president, the case was suspended or stalled for reasons beyond the authority's control for more than six years, yet that time still counted toward the deadline.

Rodrigues emphasized that the expiration "extinguished the sanctioning liability but did not annul the declaration of unlawfulness, nor did it amount to an acquittal on the merits." In his view, the banks remain legally guilty—they simply cannot be fined.

What Bank Executives Told Parliament

In the same round of hearings, senior executives from Millennium bcp, Santander, BBVA, and Abanca argued that the information exchanges were informal, sporadic, and often public or about to become public. They maintained that at the time, Portugal lacked the centralized market data the Bank of Portugal now provides, forcing institutions to piece together their own competitive intelligence.

Miguel Maya, CEO of Millennium bcp, insisted there was "never any intention to limit competition or harm clients," claiming the data-sharing actually "increased competition" and drove prices down. Luís Castro e Almeida of BBVA Portugal and Pedro Pimenta of Abanca echoed this line, asserting no customer damage occurred.

To bolster their case, the APB presented a chart showing that mortgage interest rates in Portugal remained below the eurozone average from 2002 to 2013, suggesting consumers benefited from the allegedly competitive environment. Bento also noted that the APB does not coordinate member pricing or commercial policy—doing so would itself violate competition law.

Parliamentary Backlash and Constitutional Debate

The constitutional defense triggered sharp exchanges. Vítor Bento responded to criticism by suggesting that some deputies "disagree with the presumption of innocence enshrined in the Constitution." He argued that statute-of-limitations provisions exist to "protect citizens from the unlimited exercise of the state's sanctioning power," not as a privilege for defendants.

The Socialist and Chega blocs remained unconvinced, with Matos calling the invocation of innocence a "disservice to the Republic" given that guilt was confirmed at first instance and by European judges. The political temperature around the issue reflects broader public frustration that major institutions can evade accountability through procedural exhaustion.

Impact on Residents and Borrowers

For hundreds of thousands of Portuguese families who took out mortgages during the 2002–2013 window, the case's collapse means no compensation, no refund, and no formal acknowledgment of harm—even if courts found the banks coordinated sensitive data.

At the time, Portugal's housing market was booming, with mortgage debt surging ahead of the 2008 financial crisis. The AdC's allegation is that coordinated information flows allowed banks to reduce competitive uncertainty, potentially keeping spreads higher than they would have been in a truly open market. However, because the case never reached a final damages phase, no quantification of consumer loss was ever established in court.

The APB's chart showing lower rates than the eurozone average complicates the narrative, yet critics argue this comparison is misleading: Portugal's economy was weaker and inflation lower than many eurozone peers, so baseline rates would naturally differ. What matters, they contend, is whether rates were higher than they would have been absent collusion—a counterfactual impossible to prove without econometric analysis.

Legal Reforms—But a Lingering Gap

Portugal's 2022 amendment to the Competition Law (Law 17/2022) addressed the core procedural flaw: it now explicitly suspends limitation periods while appeals are pending. The AdC president confirmed this change will prevent future "banking cartel" scenarios.

However, Rodrigues urged deputies to clarify whether the 2022 rule applies retroactively to pending cases, warning that other ongoing investigations risk the same fate. The call highlights a persistent anxiety within enforcement circles: complex cartel prosecutions can span a decade or more, and if every appeal eats into the limitation clock, even clear-cut violations may expire.

European practice varies. The EU's Damages Directive (transposed into Portuguese law as Law 23/2018) mandates that limitation clocks for private damages claims do not start until victims know about the infraction—typically when the European Commission publishes a decision summary in the Official Journal. Limitation periods also suspend during Commission investigations and for at least one year after a final decision. Yet these protections apply mainly to private civil claims, not the administrative fines that form the backbone of public enforcement.

The Fines That Vanished

The cancelled penalties were distributed as follows:

• CGD: €82M

• Millennium bcp: €60M

• Santander Totta: €35.65M

• BPI: €30M

• Montepio: €13M

• BBVA: €2.5M

• BES (now Novo Banco): €700,000

• BIC: €500,000

• Crédito Agrícola: €350,000

• UCI: €150,000

Even though state-owned CGD was liable for the largest share, no public funds were recovered to offset taxpayer support provided during the financial crisis. The total represents roughly 0.1% of Portugal's 2025 GDP, a modest sum in macroeconomic terms but symbolically significant given the country's history of bank bailouts.

What Happens Next

Deputies voted unanimously this week to request the Bank of Portugal's formal opinion on the AdC's original condemnation, signaling that parliamentary scrutiny will continue. The central bank's regulatory perspective may shed light on whether supervisory oversight at the time should have caught or deterred the information exchanges.

For residents, the saga underscores a harsh reality: even when competition violations are proven in court, procedural timelines can render enforcement hollow. The 2022 legal fix offers hope for future cases, but the "banking cartel" chapter has closed without financial consequences for the institutions involved—or redress for the customers who may have paid inflated spreads during one of the most consequential credit cycles in Portugal's modern history.