Banking Law and International Liquidity Facilities in Spain

1. Introduction

International liquidity facilities are mechanisms through which liquidity can be supplied across borders or in foreign currencies when banks or financial markets face temporary funding stress. For Spain, the subject must be understood within the Eurosystem and European Banking Union, because Spain uses the euro and the Banco de España operates as a national central bank within the Eurosystem.

The Spanish framework therefore combines:

1. Banco de España liquidity operations
2. ECB monetary-policy refinancing
3. Emergency Liquidity Assistance (ELA)
4. Eurosystem collateral arrangements
5. Cross-border central-bank swap and repo lines
6. EU/ESM financial assistance mechanisms
7. Banking-union supervision and resolution mechanisms

Banco de España maintains a financial-legislation database covering Spanish, EU and other applicable financial rules.

2. Meaning of an International Liquidity Facility

An international liquidity facility is a financial arrangement designed to provide liquidity when ordinary market funding becomes difficult.

It may involve:

• one central bank providing another central bank with its currency;
• a central bank providing foreign-currency liquidity to domestic financial institutions;
• cross-border mobilisation of collateral;
• emergency lending to a bank;
• EU-level financial assistance to a Member State;
• temporary repo or swap arrangements.

For example, a euro-area bank may require US dollars even though its domestic currency is the euro. The ECB can obtain dollars through arrangements with another central bank and make dollar liquidity available within the Eurosystem framework.

Banco de España explains that central-bank liquidity lines can operate through swap agreements or repurchase agreements, and that such arrangements are intended to alleviate tensions in international funding markets.

3. Legal Structure in Spain

The legal framework operates at several levels.

Thus, international liquidity facilities in Spain cannot be analysed solely under Spanish domestic banking legislation.

4. Eurosystem Monetary-Policy Liquidity

Ordinary liquidity provision occurs through Eurosystem monetary-policy operations.

Spanish banks that satisfy the relevant conditions can obtain central-bank liquidity against eligible collateral.

The basic legal-economic structure is:

Bank → eligible collateral → central bank → liquidity

This is different from ordinary commercial-bank borrowing because the central bank operates under the Eurosystem monetary-policy framework.

Important principle

Central-bank liquidity does not automatically mean that a bank is being rescued.

Normal refinancing operations are part of monetary policy, whereas ELA is designed for exceptional liquidity problems affecting an individual institution.

5. Emergency Liquidity Assistance — ELA

ELA is particularly important in Spanish banking law.

Emergency Liquidity Assistance is exceptional liquidity supplied by a national central bank to a financial institution facing temporary liquidity problems, subject to the Eurosystem's framework and safeguards.

For Spain, the relevant national central bank is Banco de España.

The distinction can be simplified:

ELA is therefore a major bridge between national central banking law and international/euro-area financial stability law.

6. Banco Popular: The Most Important Spanish ELA Case

The clearest practical example is Banco Popular Español in June 2017.

Banco Popular experienced a severe liquidity crisis involving substantial deposit withdrawals.

On 5 June 2017, Banco de España requested ECB agreement for ELA for Banco Popular. The General Court records that Banco de España made a further request the same day because the liquidity situation was deteriorating extremely rapidly.

The assistance was ultimately insufficient because withdrawals continued at exceptional speed.

On 6 June 2017, the ECB concluded that Banco Popular was failing or likely to fail, principally because of the severe deterioration of its liquidity position.

The following day the SRB adopted the resolution scheme transferring Banco Popular's shares and capital instruments to Banco Santander.

Legal significance

The Banco Popular episode demonstrates an important limitation:

ELA is a liquidity mechanism, not a permanent solvency-resolution mechanism.

Where liquidity deterioration becomes so severe that a bank cannot meet its obligations, the legal question may move from liquidity assistance to bank resolution.

The General Court specifically recorded that the ELA already granted was exhausted within one day because of massive and continuous deposit withdrawals.

7. Case Law

Case 1 — Del Valle Ruiz and Others v Commission and SRB

Case T-510/17, General Court, 1 June 2022

This was one of the major Banco Popular proceedings.

The litigation concerned the resolution of Banco Popular and the actions of the European institutions involved in the resolution process.

The General Court rejected the challenge to the resolution framework. The case is important because it illustrates how liquidity deterioration interacts with the Single Resolution Mechanism.

Principle

A severe liquidity crisis can contribute to the determination that a bank is failing or likely to fail, thereby activating the resolution framework.

8. Case 2 — Eleveté Invest Group and Others v Commission and SRB

Case T-523/17

This was another Banco Popular resolution case.

The General Court examined challenges concerning the resolution decision and associated Commission approval.

The case is particularly relevant to international liquidity facilities because the factual background included the rapidly deteriorating liquidity position of Banco Popular and the use of ELA immediately before resolution.

The Court's record states that Banco de España requested ELA from the ECB on 5 June 2017 and subsequently requested an extension, while the bank experienced extremely substantial liquidity movements.

Principle

Emergency liquidity assistance does not prevent resolution where the institution's financial position continues to deteriorate and the statutory conditions for resolution are satisfied.

9. Case 3 — García Fernández and Others v Commission and SRB

Case C-541/22 P, Court of Justice, judgment of 4 October 2024

This case arose from the Banco Popular resolution litigation.

The Court of Justice considered issues concerning:

• Banking Union;
• Regulation 806/2014;
• resolution conditions;
• valuation;
• confidentiality;
• access to the resolution file;
• statements concerning Banco Popular.

The Court's 2024 judgment concerned an appeal connected with the earlier T-523/17 proceedings.

Importance

The case illustrates that liquidity crises are not governed solely by central-bank lending rules. Once resolution is activated, resolution law, valuation rules and confidentiality obligations become equally important.

10. Case 4 — Fundación Tatiana Pérez de Guzmán el Bueno and SFL v SRB

Case T-481/17

This was another major Banco Popular case.

The General Court's 2022 judgment considered challenges to the Banco Popular resolution scheme.

The litigation demonstrated the judicial review available over decisions of the Single Resolution Board and the Commission.

The later Court of Justice proceedings show that aspects of the General Court's admissibility analysis were subsequently reviewed on appeal.

Principle

Emergency liquidity events can become part of wider judicial scrutiny of the legality of a bank-resolution process.

11. Case 5 — Aeris Invest v Commission and SRB

Case T-628/17

Aeris Invest also challenged aspects of the Banco Popular resolution.

The General Court dismissed the relevant actions concerning the resolution scheme. The Court considered a group of five major Banco Popular cases together, including T-481/17, T-510/17, T-523/17, T-570/17 and T-628/17.

Importance for liquidity law

The case shows that questions concerning:

• liquidity deterioration,
• valuation,
• resolution,
• shareholder rights,
• regulatory intervention,

can become legally interconnected.

12. Case 6 — Algebris (UK) and Anchorage Capital Group v Commission and SRB

Case T-570/17

This case was another challenge to the Banco Popular resolution.

The General Court dismissed the action in 2022 as part of the group of cases concerning Banco Popular.

Principle

Investors' interests must be assessed within the statutory framework governing bank resolution rather than treating emergency liquidity support as an unconditional guarantee against losses.

13. Case 7 — Pringle v Government of Ireland

Case C-370/12, Court of Justice, 27 November 2012

Although Pringle concerned Ireland rather than Spain, it is highly relevant to Spain's international liquidity and financial-assistance framework.

The Court examined the legality of the European Stability Mechanism (ESM).

The Court held that EU law did not preclude the establishment and operation of the ESM, subject to the relevant treaty framework.

Importance for Spain

Spain subsequently used a euro-area financial-assistance programme for the recapitalisation of its financial institutions.

The Spanish programme provided for up to €100 billion of external financing, and Spain ultimately used approximately €38.9 billion for bank recapitalisation and approximately €2.5 billion for capitalising Sareb.

Thus, Pringle provides the constitutional/legal foundation for understanding the broader euro-area assistance mechanisms within which Spain's banking support operated.

14. Case 8 — Banco Popular ELA Litigation and ECB Confidentiality

The Banco Popular litigation also generated important judicial consideration of access to information concerning ELA.

The relevant proceedings concerned requests for information such as:

• ELA ceiling;
• amount actually granted;
• collateral provided;
• liquidity position;
• capital ratios;
• Banco de España communications with the ECB.

The General Court's materials show that the requested information included the ELA ceiling and actual ELA amount and collateral.

This illustrates an important principle of liquidity law:

Liquidity information can have systemic importance.

Disclosure of emergency liquidity information can potentially affect:

• depositor confidence;
• market expectations;
• bank runs;
• interbank funding;
• financial stability.

Therefore, EU law gives substantial importance to confidentiality surrounding central-bank decision-making.

15. Cross-Border Collateral: CCBM

Another important international liquidity mechanism is the Correspondent Central Banking Model (CCBM).

Under the CCBM, eligible assets can be mobilised across national borders.

For example:

Spanish bank → eligible asset held in another Eurosystem country → correspondent central bank → Banco de España/Eurosystem credit

Banco de España describes the CCBM as an Eurosystem arrangement allowing counterparties to mobilise eligible assets for monetary-policy and intraday-credit operations on a cross-border basis.

This is especially important for Spanish banks with internationally distributed securities and other eligible collateral.

16. International Currency Swap Facilities

International liquidity facilities also include central-bank currency swaps.

A simplified example:

ECB ↔ Federal Reserve

The ECB receives US dollars from the Federal Reserve and provides euro-area institutions with access to dollar liquidity under the applicable framework.

Banco de España explains that the ECB maintains standing bilateral arrangements with major central banks including:

• Federal Reserve;
• Bank of England;
• Bank of Japan;
• Swiss National Bank;
• Bank of Canada.

These arrangements help address foreign-currency funding stress in euro-area markets.

17. Repo Facilities

A second form of international liquidity arrangement is the repo line.

Under a repo arrangement:

1. One central bank provides liquidity.
2. The receiving central bank provides acceptable collateral.
3. The transaction has a specified maturity.
4. The liquidity is repaid according to the agreed terms.

Repo facilities became particularly important during periods of international market stress.

Banco de España notes that both swap and repo lines are used as central-bank tools for dealing with international funding tensions.

18. International Liquidity vs ESM Assistance

These mechanisms should not be confused.

19. Relationship with Banking Resolution

The most important legal lesson from Banco Popular is that liquidity assistance and resolution are separate stages.

A simplified sequence is:

Liquidity stress

↓

ELA / emergency liquidity support

↓

Assessment of viability

↓

Failing-or-likely-to-fail determination

↓

Resolution decision

↓

Sale / bail-in / other resolution tool

The Banco Popular case illustrates this progression particularly clearly. The ECB concluded on 6 June 2017 that Banco Popular was failing or likely to fail following severe deterioration of its liquidity position, and the SRB subsequently adopted a resolution scheme involving its sale to Santander.

20. Role of the Banco de España

Banco de España has several interconnected functions.

A. National central bank

It participates in Eurosystem monetary policy.

B. Liquidity provider

It can provide liquidity under the applicable Eurosystem framework.

C. ELA authority

It plays the central national role in emergency liquidity assistance.

D. Banking supervisor

It participates in the supervisory architecture of the Banking Union.

E. Resolution role

Through Spain's resolution framework and FROB, it participates in the national side of the European resolution mechanism.

Therefore, the Banco de España occupies a unique position between Spanish banking law and European monetary law.

21. Legal Principles Emerging from the Case Law

Principle 1 — Liquidity and solvency are legally different

A bank can have a liquidity problem without necessarily being insolvent.

But a persistent liquidity crisis may contribute to a finding that the institution is no longer viable.

Principle 2 — ELA is not an unlimited bailout

ELA is emergency liquidity assistance subject to legal and institutional conditions.

The Banco Popular experience demonstrates that emergency liquidity can become insufficient when deposit withdrawals are exceptionally rapid.

Principle 3 — Collateral is fundamental

Central-bank liquidity normally operates against eligible collateral.

Collateral protects the central bank and provides a legal basis for the credit operation.

Principle 4 — Cross-border liquidity requires institutional coordination

Spanish banks are part of an integrated euro-area financial system.

Consequently, Banco de España, ECB, other Eurosystem central banks, SRB, FROB and European Commission mechanisms may become relevant in a serious crisis.

Principle 5 — Confidentiality has systemic importance

Information concerning emergency liquidity can itself influence market behaviour.

Consequently, litigation concerning Banco Popular demonstrates the tension between:

transparency + judicial review

and

confidentiality + financial stability.

22. Spain's 2012 Banking Assistance Programme

International liquidity and financial assistance became particularly important during Spain's banking crisis.

In July 2012, euro-area countries agreed to provide Spain with external financing of up to €100 billion for the recapitalisation of financial institutions.

Spain exited the programme in January 2014. Around €38.9 billion was used for bank recapitalisation and around €2.5 billion for Sareb.

The programme included:

• bank-by-bank capital assessment;
• stress testing;
• transfer of impaired assets;
• recapitalisation;
• restructuring;
• resolution of non-viable banks;
• stronger supervisory and resolution arrangements.

This was therefore much broader than ordinary central-bank liquidity.

23. Difference Between Liquidity Support and Capital Support

This distinction is essential for examination purposes.

Liquidity support

Provides cash/funding against acceptable collateral.

Example:

A bank has good assets but cannot obtain sufficient short-term funding.

Capital support

Addresses a capital deficiency.

Example:

A bank's assets have lost value and its capital ratio has fallen below regulatory requirements.

Resolution

Deals with an institution that is failing or likely to fail and where statutory resolution conditions are satisfied.

Banco Popular demonstrates why these concepts cannot be treated as interchangeable.

24. International Liquidity Facilities and Financial Stability

International liquidity facilities perform several functions:

1. Preventing disorderly bank runs

Emergency liquidity can give banks time to meet withdrawals.

2. Maintaining payment systems

Liquidity allows banks to continue settling payments.

3. Supporting foreign-currency funding

Swap facilities can provide dollars or other foreign currencies.

4. Reducing contagion

Liquidity facilities can reduce the transmission of stress across banking markets.

5. Supporting monetary-policy transmission

Adequate liquidity allows the Eurosystem's monetary-policy framework to function effectively.

25. Major Risks

International liquidity facilities also create legal and economic risks.

Moral hazard

Banks may assume central banks will rescue them.

Collateral risk

The value of collateral may decline.

Credit risk

The central bank may face losses if the institution fails.

Cross-border legal risk

Collateral may be located in another jurisdiction.

Confidentiality risk

Disclosure may intensify a bank run.

Fiscal risk

Large-scale financial assistance may ultimately affect public finances.

26. Important Case-Law Table

The General Court expressly dealt with five major Banco Popular cases—T-481/17, T-510/17, T-523/17, T-570/17 and T-628/17—in its 1 June 2022 judgments.

27. Conclusion

International liquidity facilities in Spain are fundamentally a multi-level legal system. Spanish banking law operates together with Eurosystem monetary-policy law, ECB rules, Banking Union legislation and euro-area financial-stability mechanisms.

The central concepts are:

Banco de España → Eurosystem liquidity → ELA → cross-border collateral → ECB swap/repo arrangements → Banking Union supervision → resolution → ESM financial assistance.

The Banco Popular crisis of 2017 is the central practical example. Banco de España sought ELA from the ECB when Popular experienced an extreme liquidity crisis, but the speed of deposit withdrawals meant that emergency liquidity was insufficient. The ECB then determined that Banco Popular was failing or likely to fail, leading to resolution by the SRB.

Accordingly, the key legal proposition is:

International liquidity facilities are designed to preserve short-term financial liquidity and systemic stability; they do not eliminate the separate legal requirements governing solvency, supervision, State aid, or bank resolution.