CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

The stability of any financial system depends greatly on the soundness of its banking institutions. Banks play a vital role in financial intermediation by mobilizing savings and channeling funds toward productive investments. However, when borrowers fail to meet their repayment obligations, the resulting non-performing loans (NPLs) can weaken a bank’s balance sheet and threaten overall financial stability. In Nigeria, the issue of NPLs has persisted as a major challenge, despite several reforms aimed at strengthening the banking sector.

Non-performing loans refer to credit facilities whose principal or interest payments remain overdue for ninety days or more (CBN, 2023). They represent a significant measure of credit risk and asset quality within the banking system. When the proportion of NPLs increases, it affects banks’ profitability, capital adequacy, and liquidity. Consequently, a continuous rise in bad loans reduces the ability of banks to perform their intermediation function effectively. According to the Central Bank of Nigeria, the average NPL ratio fluctuated between 5% and 9% from 2018 to 2023, occasionally surpassing the regulatory benchmark of 5% (NDIC, 2023).

Several factors contribute to the persistence of high NPL levels in Nigeria. Economic instability, exchange rate fluctuations, poor credit assessment, and weak risk management systems have played notable roles. Moreover, poor corporate governance and political interference in loan approvals have often led to reckless lending practices. As these challenges intensify, the capacity of banks to provide credit to the real sector diminishes. Therefore, addressing the issue of non-performing loans is essential not only for bank profitability but also for ensuring the long-term stability of Nigeria’s financial system.

In response to these concerns, the Central Bank of Nigeria has introduced multiple policy measures to contain credit risk. For instance, the creation of the Asset Management Corporation of Nigeria (AMCON) in 2010 was aimed at purchasing toxic assets from banks and restoring sectoral confidence. Although such measures have yielded some positive outcomes, the recurrence of NPLs indicates that the problem remains far from fully resolved. Consequently, a deeper understanding of how non-performing loans affect financial stability in Nigerian banks is both timely and necessary.

1.2 Statement of the Problem

The increasing volume of non-performing loans continues to threaten the financial health of Nigerian banks. Despite various supervisory and regulatory frameworks, asset quality remains a source of concern for the Central Bank of Nigeria and other stakeholders. During economic downturns, borrowers often default on loan repayments, leading to higher provisioning expenses and declining profitability. Consequently, banks face liquidity constraints, reduced capital adequacy, and eroding investor confidence.

Furthermore, excessive levels of NPLs limit the credit available to productive sectors of the economy. As lending activities shrink, private investment and economic growth slow down. This creates a cyclical pattern where weak economic conditions lead to more defaults, which in turn worsen bank performance. In light of this, questions persist about the effectiveness of Nigeria’s credit risk management policies and the extent to which non-performing loans influence overall financial stability.

1.3 Objectives of the Study

The main objective of this study is to examine the effect of non-performing loans on the financial stability of Nigerian banks. The specific objectives are to:

1. Assess the trend and major causes of non-performing loans in Nigerian banks.

2. Determine the relationship between non-performing loans and bank profitability.

3. Examine how non-performing loans influence capital adequacy and liquidity ratios.

4. Identify measures that can minimize non-performing loans and promote financial stability in the banking sector.

1.4 Research Questions

1. What are the key causes and patterns of non-performing loans in Nigerian banks?

2. How do non-performing loans affect the profitability of banks?

3. What is the relationship between non-performing loans, capital adequacy, and liquidity?

4. Which strategies can effectively reduce non-performing loans and enhance financial stability?

1.5 Research Hypotheses

• H₀: Non-performing loans have no significant effect on the financial stability of Nigerian banks.

• H₁: Non-performing loans have a significant effect on the financial stability of Nigerian banks.

1.6 Significance of the Study

This study is important because it offers empirical insight into how non-performing loans influence bank soundness and stability. The findings will help policymakers and regulators, particularly the Central Bank of Nigeria (CBN) and the Nigeria Deposit Insurance Corporation (NDIC), in designing more effective risk management frameworks. Moreover, it will assist bank managers in improving credit assessment techniques, monitoring loan portfolios, and adopting more robust recovery strategies.

In addition, investors and shareholders will benefit from understanding how asset quality affects profitability and market confidence. From an academic perspective, the research contributes to existing literature on financial stability in emerging economies. Consequently, it provides a foundation for further studies on risk management and banking performance in Nigeria and other developing countries.

1.7 Scope of the Study

The study focuses on selected deposit money banks operating in Nigeria between 2010 and 2025. It considers variables such as non-performing loan ratio, return on assets (ROA), return on equity (ROE), capital adequacy ratio, and liquidity ratio. Data will be obtained from reliable secondary sources, including the CBN’s Financial Stability Reports, NDIC publications, and banks’ annual financial statements. The analysis will exclude microfinance and merchant banks because their business structures and risk profiles differ from those of commercial banks.

1.8 Limitations of the Study

This study is not without limitations. Access to consistent data across different banks may pose challenges due to variations in financial reporting standards. Furthermore, macroeconomic factors such as inflation, exchange rate volatility, and policy shifts may influence the findings beyond the researcher’s control. Nevertheless, efforts will be made to mitigate these limitations through the use of verified data and appropriate analytical methods.

1.9 Definition of Key Terms

• Non-Performing Loans (NPLs): Credit facilities that remain unpaid for ninety days or more.

• Financial Stability: The ability of a financial system to function effectively and absorb shocks without major disruptions.

• Credit Risk: The possibility of a borrower failing to fulfill loan repayment obligations.

• Capital Adequacy Ratio (CAR): The proportion of a bank’s capital relative to its risk-weighted assets.

• Liquidity Ratio: The measure of a bank’s capacity to meet its short-term liabilities as they fall due.

1.10 Organization of the Study

This research is organized into five chapters for clarity and coherence. The first chapter introduces the study by outlining the background, problem statement, objectives, research questions, and hypotheses. Following this, Chapter Two presents an extensive review of theoretical and empirical literature on non-performing loans and financial stability. In the third chapter, the research design, data sources, and analytical methods are explained in detail. Chapter Four contains data presentation, analysis, and discussion of findings. Finally, Chapter Five provides a summary of the major results, conclusions, and recommendations aimed at improving financial stability in the Nigerian banking sector.

References

Central Bank of Nigeria (CBN). (2023). Financial Stability Report. Abuja: CBN Publications.
Nigeria Deposit Insurance Corporation (NDIC). (2023). Annual Report and Banking Sector Review. Abuja: NDIC Press.
Olawale, T. K., & Danjuma, H. A. (2021). Non-Performing Loans and Financial Stability: Evidence from Nigerian Banks. Journal of Financial Management Studies, 8(2), 45–63.*
Ugochukwu, C. A., & Ibrahim, M. A. (2022). The Impact of Credit Risk on Financial Stability in Sub-Saharan Africa. African Journal of Economics and Finance, 14(3), 72–88.*