THE ROLE OF ACTUARIAL SCIENCE IN INSURANCE RISK MANAGEMENT IN NIGERIA

CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

Actuarial science is the discipline that applies mathematics, probability, statistics and financial theory to the measurement and management of risk, principally in insurance and pensions. Its core functions within an insurance enterprise are the pricing of risk, the valuation of liabilities, the determination of technical provisions and capital requirements, the design of reinsurance programmes, and the assessment of the insurer's capacity to remain solvent under adverse scenarios. In modern regulatory frameworks, the actuarial function is not merely advisory; it is a statutory control function on which the credibility of the insurer's reported financial position depends.

The Nigerian insurance industry has entered a period in which this function has become indispensable. Three developments account for this. First, the adoption of IFRS 17 (Insurance Contracts) from 2023 replaced premium-based revenue recognition with a measurement model requiring the discounted, risk-adjusted estimation of future cash flows an inherently actuarial exercise. Second, the Nigerian Insurance Industry Reform Act (NIIRA), 2025, signed into law on 5 August 2025, repealed and consolidated the Insurance Act 2003 and related statutes, raising minimum capital to ₦15 billion for non-life, ₦10 billion for life and ₦35 billion for reinsurance business, and introducing risk-based capital determined by reference to the insurance, market, credit and operational risks each insurer carries (Federal Republic of Nigeria, 2025). Risk-based capital cannot be computed without actuarial modelling. Third, NAICOM's circular on annuity underwriting, effective 1 February 2025, directed life insurers to appoint at least one qualified actuary responsible for asset liability matching analysis and to apply the Nigerian Actuarial Society's Standards of Actuarial Practice in the pricing and valuation of annuity portfolios (Apere, 2025).

The difficulty is one of capacity. The Financial Reporting Council has estimated that the Nigerian economy requires more than three thousand actuaries, whereas fewer than thirty qualified actuaries were reported to be practising in the country as at 2025 (Anaesoronye, 2025b). The Nigerian Actuarial Society had over seventy members but only nine registered as fully qualified actuaries at the time NAICOM's annuity circular was issued (Apere, 2025). The consequence of this shortage is visible in outcomes: the failure of insurers to meet annuity obligations has already produced regulatory intervention, including NAICOM's dissolution of the board and management of an established life insurer in October 2024 following its inability to meet obligations to annuitants.

Meanwhile, the industry's exposures are growing in both scale and complexity. Gross written premium reached ₦2.30 trillion in 2025, total assets stood at ₦4.79 trillion, and annuities accounted for 44.3 per cent of life premiums (NAICOM, 2026). Emerging exposures climate-related catastrophe risk, cyber risk, and health system risk are precisely those for which historical loss experience is thin and actuarial modelling judgment is most needed. A study of how actuarial science is actually deployed in Nigerian insurance risk management, and of the consequences of its under-deployment, is therefore both timely and practically consequential.

1.2 Statement of the Problem

Nigerian insurance companies are being required by law and by accounting standards to adopt risk-based, actuarially determined approaches to capital, pricing and reserving at a moment when the country has fewer than thirty qualified actuaries. This mismatch creates a set of interrelated problems.

First, where actuarial capacity is absent, technical provisions and capital requirements are approximated by rule of thumb or outsourced to foreign consultants whose availability is now constrained by registration requirements. The resulting estimates may be neither accurate nor independently verifiable.

Second, the industry continues to record persistent operational failures that actuarial discipline is designed to prevent: under-pricing of compulsory classes, delayed and disputed claim settlement, inadequate reserving for long-tail liabilities, and annuity portfolios whose assets are not matched to their liabilities. In 2025 the non-life segment settled 75.5 per cent and the life segment 65.5 per cent of reported claims (NAICOM, 2026), figures that raise questions about both reserving adequacy and claims management.

Third, there is limited empirical Nigerian research establishing the relationship between the depth of actuarial practice within an insurance firm and measurable risk management outcomes such as solvency ratio, claims ratio, reserve adequacy and underwriting profitability. Most existing Nigerian literature on actuarial science is descriptive or prescriptive rather than evidential.

The problem this study addresses is the absence of systematic evidence on the role, extent and effectiveness of actuarial science in insurance risk management in Nigeria, and on the consequences of the actuarial capacity deficit for industry performance.

1.3 Aim and Objectives of the Study

The aim of this study is to examine the role of actuarial science in insurance risk management in Nigeria.

The specific objectives are to:

1. examine the extent to which actuarial techniques are applied in risk identification, pricing and reserving by insurance companies in Nigeria;

2. determine the effect of actuarial practice on the solvency position of Nigerian insurance companies;

3. assess the relationship between actuarial valuation practice and the adequacy of technical provisions;

4. identify the institutional, regulatory and human-capital constraints limiting actuarial practice in Nigeria; and

5. evaluate the implications of IFRS 17 and NIIRA 2025 for the demand for actuarial services in the Nigerian insurance industry.

1.4 Research Questions

1. To what extent are actuarial techniques applied in risk identification, pricing and reserving by Nigerian insurance companies?

2. What effect does actuarial practice have on the solvency position of Nigerian insurance companies?

3. What is the relationship between actuarial valuation practice and the adequacy of technical provisions?

4. What institutional, regulatory and human-capital constraints limit actuarial practice in Nigeria?

5. What are the implications of IFRS 17 and NIIRA 2025 for the demand for actuarial services in Nigeria?

1.5 Research Hypotheses

The following null hypotheses will be tested at the 5% level of significance:

H₀₁: Actuarial practice has no significant effect on the solvency position of insurance companies in Nigeria.

H₀₂: There is no significant relationship between actuarial valuation practice and the adequacy of technical provisions in Nigerian insurance companies.

H₀₃: Actuarial risk pricing has no significant effect on the underwriting performance of Nigerian insurance companies.

H₀₄: The shortage of qualified actuaries has no significant effect on risk management effectiveness in the Nigerian insurance industry.

1.6 Significance of the Study

For insurance companies, the study provides evidence on the return to investment in actuarial capacity, informing decisions on whether to build in-house actuarial teams or continue outsourcing. For NAICOM and the Financial Reporting Council, it supplies a diagnosis of the capacity constraints that will determine whether the risk-based capital regime introduced by NIIRA 2025 can be implemented as designed. For the Nigerian Actuarial Society and universities offering actuarial science, it identifies the specific competency gaps that curriculum and accreditation reform should target a question made concrete by the University of Lagos's 2024 accreditation of its actuarial science postgraduate programme by the Institute and Faculty of Actuaries (Apere, 2025). For policyholders and annuitants, whose benefit security depends on the adequacy of reserves, the study addresses a matter of direct financial consequence. For scholarship, it contributes Nigerian evidence to a literature on actuarial function effectiveness that is overwhelmingly drawn from developed insurance markets.

1.7 Scope of the Study

The study covers insurance and reinsurance companies licensed by NAICOM and operating in Nigeria, together with the regulatory and professional institutions that govern actuarial practice NAICOM, the Nigerian Actuarial Society, the Financial Reporting Council of Nigeria and the Chartered Insurance Institute of Nigeria. The temporal scope focuses on the period from 2015 to 2025, which encompasses the introduction of IFRS 17, the annuity regulation reforms and the enactment of NIIRA 2025. The study examines actuarial application in pricing, reserving, capital determination, asset liability matching and reinsurance design. It does not extend to pension fund actuarial practice except where pension-linked annuity business is written by insurers, nor to actuarial applications outside the insurance sector.

1.8 Limitations of the Study

(i) Small population of qualified actuaries with fewer than thirty qualified actuaries nationally, the pool of expert respondents for survey or interview purposes is extremely small, constraining statistical power. (ii) Commercial sensitivity actuarial reports, valuation bases and reserving assumptions are confidential, so the study may have to rely on published financial statements and respondent self-report rather than primary actuarial documentation. (iii) Measurement difficulty "actuarial practice" is a multidimensional construct not directly observable in financial statements, and any index constructed to proxy it involves judgment. (iv) Regulatory transition NIIRA 2025 came into force during the study period with a twelve-month compliance window, so its full effects may not yet be observable in reported data. (v) Response bias insurers may present their actuarial capacity more favourably than is warranted, given the regulatory implications of admitting deficiency.

1.9 Operational Definition of Terms

Actuarial science: The application of mathematical, statistical and financial methods to the assessment and management of risk and uncertainty in insurance, pensions and related fields.

Risk management: The systematic process of identifying, measuring, controlling, financing and monitoring the risks to which an organisation is exposed.

Technical provisions: The amounts set aside by an insurer to meet its obligations under insurance contracts, comprising outstanding claims reserves, unearned premium reserves and, under IFRS 17, the risk adjustment and contractual service margin.

Solvency: The capacity of an insurer to meet its liabilities as they fall due; measured by the excess of admissible assets over liabilities relative to a required minimum.

Risk-based capital (RBC): Capital determined by reference to the specific insurance, market, credit and operational risks borne by an insurer, as required by NIIRA 2025.

Asset liability matching (ALM): The alignment of the duration, currency and cash-flow profile of an insurer's assets with those of its liabilities, particularly important in annuity business.

Qualified actuary: For the purposes of NAICOM regulation, a Fellow of the Nigerian Actuarial Society, or an Associate in the restricted circumstances permitted by the Commission.

IFRS 17: The International Financial Reporting Standard governing the recognition, measurement, presentation and disclosure of insurance contracts.

References

Anaesoronye, M. (2025a). Actuarial skills gap in Nigeria and the need for funding. BusinessDay Nigeria. https://businessday.ng/opinion/article/actuarial-skills-gap-in-nigeria-and-the-need-for-funding/

Anaesoronye, M. (2025b). Need for actuaries widens as insurance unlocks new markets. BusinessDay Nigeria. https://businessday.ng/insurance/article/need-for-actuaries-widen-as-insurance-unlock-new-markets/

Apere, P. (2025). NAICOM directive to worsen shortage of actuarial scientists. Vanguard Nigeria. https://www.vanguardngr.com/2025/03/naicom-directive-to-worsen-shortage-of-actuarial-scientists-apere/

Federal Republic of Nigeria. (2025). Nigerian Insurance Industry Reform Act, 2025. Federal Government Press.

International Accounting Standards Board. (2017). IFRS 17 Insurance contracts. IFRS Foundation.

Klugman, S. A., Panjer, H. H., & Willmot, G. E. (2019). Loss models: From data to decisions (5th ed.). John Wiley & Sons.

National Insurance Commission. (2026). Bulletin of the insurance market performance: Fourth quarter 2025. NAICOM.

Okiche, E. L., Nwankwo, O., & Ezeh, C. (2022). Determinants of the growth of the Nigerian insurance industry. International Journal of Research and Innovation in Social Science, 6(8), 412 424.

United Nations Development Programme. (2024). Inclusive insurance and risk financing in Nigeria: Snapshot and way forward. UNDP Insurance and Risk Finance Facility. https://irff.undp.org/sites/default/files/2024/Nov/irff-diagnostic-report-nigeria.pdf