Shadow banking

Learn what shadow banking means, what is shadow banking in practice, and why the concept is central to anti-money laundering and counter-terrorist financing.

Glossary
Shadow banking

Explained – what is shadow banking?

Shadow banking refers to financial services offered wholly or partly outside the regulated banking system. Unlike banks and other licensed institutions, these actors are not subject to the same supervision, reporting or customer due diligence. The term is often used to describe parallel, informal or illegal arrangements for value transfer within the informal financial system. This can include unlicensed cryptocurrency platforms, a hawala system or wider hawala network, cash-based lending structures, or underground exchange bureaux. An AML lawyer will frequently encounter the term when investigating complex, untraceable payment flows; engaging an anti money laundering advisory capability is often decisive. For readers asking what is shadow banking, it denotes activity marked by lack of supervision, opacity and limited audit trails.

When does shadow banking become an issue?

The issue arises when firms identify customer relationships, transactions or counterparties that bypass the traditional financial system. This is particularly relevant for high-risk transactions involving cryptoassets, transfers via an informal value transfer system such as a hawala system, or large cash deposits without a clear rationale. Shadow banking is also at play where suspicious payment intermediaries are used to conceal the real payment chain. Obliged entities should therefore remain alert to unusual transaction patterns and hard-to-explain flows, with effective transaction monitoring and suspicious activity reporting.

Illustration of non-bank financial transactions between business professionals, showing contracts, money flow, and cryptocurrency, representing shadow banking, alternative finance, and financial regulation.

Key considerations around shadow banking

Where a firm is exposed to shadow banking, clear procedures are needed to minimise risk. The following measures are central:

Identify early any customers or counterparties using unlicensed crypto trading platforms or exchange bureaux.
Pay particular attention to cash-intensive businesses with unexplained deposits.
Monitor repeated transactions just below reporting thresholds that still indicate transaction structuring or structuring in AML.
Assess whether a hawala system (or similar) could underlie cross-border transfers within an informal value transfer system.
Strengthen customer due diligence for business relationships with a high risk of informal payment channels, including enhanced customer due diligence where warranted.
Document all assessments and decisions concerning suspicious flows to support suspicious activity reporting.
Ensure suspicions are reported in line with applicable anti-money-laundering laws across Europe and the firm’s suspicious activity reporting procedures.

By acting consistently and on a risk-based approach AML, organisations can prevent their services being misused for unlawful purposes.

Shadow banking

Why shadow banking matters

Shadow banking is important because it represents a genuine risk zone for money laundering and terrorist financing. Unlike licensed banks, there may be no supervision, reporting obligations or controls over customers and transactions. This creates extensive opportunities to move assets anonymously and rapidly across borders, posing a financial stability risk.

For authorities and obliged entities, there is a need to understand and identify these structures. The regulation of money laundering and terrorist financing is built on risk-based measures, and informal systems are a high-risk factor. When organisations are prepared to detect shadow banking, they reinforce both regulatory effectiveness and their own credibility.

More broadly, combating shadow banking is vital to maintaining trust in the financial system. Disrupting illegal financial channels protects financial stability and the wider economy from harmful flows. Where needed, seek specialist anti money laundering advisory support to calibrate controls and supervision of financial institutions.

It means financial services outside the regulated financial system that are often used to obscure the origin of assets or finance terrorism. Put simply: what is shadow banking? It is activity that evades oversight and hampers effective suspicious activity reporting.

Common examples include hawala, illegal exchange bureaux, cash-based credit schemes and unlicensed crypto platforms. These lack transparency and reporting duties, making them attractive to criminal actors within an informal financial system.

Organisations can strengthen controls by analysing transaction patterns and reviewing high risk indicators. Examples include:

Recurring cross-border transfers with no commercial purpose.
Customers using multiple payment intermediaries.
Unexplained cash deposits or rapid switching between asset types, including frequent crypto-to-crypto conversions.

Hawala and similar systems are often used because they are fast, inexpensive and built on trusted networks. They are, however, difficult to monitor and control, which makes them attractive for criminal activity and complicates transaction monitoring.

All obliged entities under applicable European anti-money-laundering laws must identify and report suspicious activities. This includes banks, payment institutions, estate agents and several other sectors, supported by clear internal procedures for suspicious activity reporting and a documented risk-based approach AML.

Cryptoassets have specific red flags. The following may indicate exposure to shadow banking activity:

Transactions via unlicensed or unregistered platforms.
High volumes of small transfers that may be structured to avoid detection (transaction structuring or structuring in AML).
Frequent switching between different cryptoassets to reduce traceability.
Customers refusing to provide information on purpose or source of funds, undermining customer due diligence.

For tailored support in designing proportionate controls and governance, consider engaging an anti money laundering advisory team.

By aligning governance, training and technology, firms can address shadow banking meaningfully and sustain effective oversight.