Nigeria’s Idle Trillions: Banks Sit on Mountains of Cash as AML Failures, Sanctions Exposure and Financial Inclusion Risks Demand Urgent Regulatory Scrutiny

Nigeria’s banking sector is facing a growing financial paradox: trillions of naira circulate within the financial system, yet businesses and households continue to struggle with access to affordable credit. The situation raises important questions about liquidity management, regulatory oversight, financial inclusion and the effectiveness of banking compliance frameworks.

Idle banking funds and cash  which remains outside productive circulation, highlights a challenge that goes beyond monetary policy.

Central Bank of Nigeria (CBN) data reported in July 2026 showed that deposits through its Standing Deposit Facility reached ₦61.07 trillion in February 2026, compared with ₦50.69 trillion in January. These are cumulative facility transactions, not the amount of money held at the CBN at a single point in time.

From a compliance and AML/CFT perspective, the central issue is how financial institutions maintain visibility over large financial flows, identify unusual transaction patterns and establish the legitimacy of funds moving through the banking ecosystem.

Cash-intensive transactions present particular risks, including inadequate customer identification, structuring, third-party deposits, unexplained cash movements and difficulties establishing beneficial ownership. However, excess liquidity or cash held outside banks is not, by itself, evidence of money laundering.

Sanctions compliance is equally important. Banks must maintain effective screening of customers, beneficial owners and transactions against applicable Nigerian and United Nations sanctions lists, ensuring that designated persons and entities cannot exploit the financial system.

The CBN’s March 2026 automated AML standards further raise the compliance bar, requiring institutions to strengthen transaction monitoring, customer risk profiling, sanctions screening, investigation and regulatory reporting.

There is also a financial inclusion dimension. When banks consistently favour risk-free placements over productive lending, regulators must consider the implications for small businesses, economic growth and access to finance.

Ultimately, Nigeria needs a banking system that is not merely liquid, but transparent, financially inclusive and resistant to illicit financial flows. Stronger risk-based supervision, effective AML/CFT controls and responsible credit allocation must work together to achieve that objective.