Nigeria’s health insurance system has reached a critical inflection point, one defined not by a lack of progress, but by the limits of that progress. As of Q4 2025, total enrollment exceeds 21.7 million people, up from approximately 16.83 million in Q2 of the same year. On paper, this reflects momentum, institutional commitment, and growing awareness. In reality, however, it reveals a deeper structural paradox: Nigeria has achieved expansion, but not inclusion; scale, but not depth.
In a country with a population surpassing 220 million, current coverage levels remain below 10 percent. This is far short of the threshold required for effective risk pooling, financial protection, and meaningful progress toward universal health coverage. The implication is stark: the overwhelming majority of Nigerians still rely on out-of-pocket payments for healthcare, leaving households vulnerable to catastrophic expenditures and reinforcing cycles of poverty.
At the heart of this challenge lies a structural imbalance in how coverage is generated. Nigeria’s health insurance architecture is still overwhelmingly anchored in the formal sector. The Federal Formal Sector programme alone accounts for over 3.65 million enrollees, reflecting steady growth driven by payroll-based contributions. Alongside this, private insurance, largely administered through Health Maintenance Organisations, covers between 1.7 and 1.84 million people, predominantly within urban and higher-income populations.
This structure is fundamentally misaligned with Nigeria’s economic reality. The country’s labour market is overwhelmingly informal, with most citizens engaged in small-scale trade, agriculture, and informal services. By tying insurance access primarily to formal employment, the system systematically excludes the majority of the population, particularly those most vulnerable to health shocks. This is not merely a gap in coverage; it is a design flaw.
Geographic patterns of enrollment further expose the uneven nature of progress. Coverage is heavily concentrated in economically advantaged areas. Lagos alone accounts for nearly 2.76 million enrollees, while the Federal Capital Territory exceeds 950,000. These figures are driven by the concentration of federal workers, organised private sector employees, and administrative institutions. They are not incidental; they reflect a system structurally dependent on income stability and formal employment.
In contrast, many states remain at the margins. States such as Taraba and Yobe struggle to reach even modest enrolment figures, highlighting stark subnational disparities. These differences are rooted in deeper structural factors, including variations in fiscal capacity, governance quality, and institutional effectiveness. States with stronger internally generated revenue and administrative competence are better positioned to co-finance insurance schemes, implement programmes effectively, and build public trust. Poorer states, by contrast, are often trapped in a “low-coverage equilibrium,” where weak systems discourage enrollment and low enrollment undermines sustainability.
Fragmentation compounds these challenges. Nigeria’s health insurance landscape is characterised by a proliferation of programmes operating in parallel: the Federal Formal Sector scheme, the Basic Health Care Provision Fund, the Equity Fund, state-supported schemes, private HMO plans, the Tertiary Institutions Social Health Insurance Programme, and multiple variants under the Group, Individual and Family Social Health Insurance Programme, including NYSC, retiree, and constituency-based categories.
While this multiplicity reflects an effort to reach diverse population groups, it has not produced a coherent system. Instead, it has led to duplication, inefficiencies, and weak coordination. Enrollees are dispersed across disconnected risk pools, limiting cross-subsidisation and undermining financial sustainability. Administrative costs are inflated, accountability is diffused, and the absence of a unified framework makes it difficult to track performance or enforce standards.
Programme-level data from 2025 illustrates how expansion is unfolding within this fragmented architecture. The Basic Health Care Provision Fund, designed as a cornerstone of pro-poor health financing, expanded significantly, growing from about 687,000 enrollees in Q2 to over 2.4 million by Q4. Similarly, the Equity Fund reached more than 3.17 million enrollees, signaling an increasing reliance on subsidy-driven coverage.
At the same time, other programmes show more limited or inconsistent growth. The Tertiary Institutions Social Health Insurance Programme remains relatively stable at around 1.7 to 1.78 million enrollees, while private HMO coverage has plateaued within a narrow segment of the population. Group, Individual and Family Social Health Insurance Programme categories display volatility across segments, reflecting inconsistent implementation and limited scale relative to national need.
These trends point to an important structural shift. Nigeria’s health insurance expansion is increasingly driven by publicly financed, equity-oriented mechanisms rather than contributory schemes. While this aligns with the principles of universal health coverage, particularly the need to protect vulnerable populations, it also raises critical concerns about sustainability. In a fiscally constrained environment, continued expansion through subsidies will require stronger domestic resource mobilisation, improved efficiency, and better targeting.
Yet even with these gains, the most critical gap remains the informal sector. Enrolment among informal workers is disproportionately low relative to their share of the labour force. This is not simply a matter of awareness or willingness; it reflects a mismatch between system design and lived economic realities. Informal incomes are irregular, unpredictable, and often cash-based, making fixed premium structures and rigid payment schedules impractical.
Addressing this gap will require a fundamental rethinking of contribution models. Flexible premium structures, mobile and digital payment systems, and community-based enrolment strategies are essential. Equally important are targeted subsidies to ensure affordability for low-income households. Without these innovations, the system will continue to exclude those who need it most.
Regional dynamics further reinforce these structural patterns. The South West emerges as the leading region, driven largely by Lagos, with additional contributions from Ogun, Oyo, and Ondo. However, Lagos dominates disproportionately, underscoring the role of economic concentration in shaping access to financial protection.
The South South presents a different paradox. Despite significant resource wealth, coverage is uneven. States like Delta and Rivers show relatively strong enrolment, while Bayelsa and Cross River lag behind. This highlights a critical insight: resource availability alone does not guarantee improved social outcomes; governance quality and institutional effectiveness are decisive.
The South East demonstrates moderate performance combined with unrealised potential. Imo leads with approximately 701,147 enrollees, followed by Anambra, Enugu, Abia, and Ebonyi. While these figures reflect active commercial networks and economic vibrancy, overall coverage remains low as a share of population. The region’s predominantly informal, trade-driven economy underscores the limitations of a system built around formal employment.
A closer look at the South East, especially Imo State, reveals a more complex picture beyond headline figures. With 701,147 enrollees, Imo ranks among the stronger-performing states and leads most in the region. However, this strength is highly concentrated and structurally narrow. About 502,217 enrollees, roughly 71 percent of total coverage, are in the GIFSHIP [Group, Individual & Family Social Health Insurance Programme] General category, indicating heavy reliance on a single programme rather than a diversified system. This suggests expansion is driven more by programme scale than systemic depth.
Imo’s heavy reliance on GIFSHIP General introduces a degree of systemic vulnerability. Any disruption in funding, policy direction, or administrative execution within that single programme could have disproportionate effects on overall coverage levels in the state. Private insurance penetration remains low, with HMO enrolment minimal compared to public schemes. Overall, Imo’s growth is driven largely by coordinated or government-supported programmes rather than broad-based, market-driven participation.
In comparative perspective, this distinguishes Imo from more structurally diversified systems such as those in Lagos or the Federal Capital Territory, where enrolment is spread across formal employment schemes, private HMOs, and state-driven programmes. These systems benefit from broader risk pools, more stable financing bases, and greater resilience to policy or funding shifts. To achieve real sustainability, Imo must broaden its base by expanding community-based schemes, integrating informal workers through flexible models, and strengthening private HMO participation. Without this, current gains may not last.
In the North Central region, the Federal Capital Territory stands out as a high-performing outlier, while other states show mixed progress. The North West, despite its large population, records relatively low coverage rates when adjusted for size, constrained by lower income levels, high informality, and cultural perceptions about insurance. The North East faces the most severe challenges, where conflict, displacement, and weak health systems significantly restrict insurance penetration, necessitating hybrid models that combine humanitarian support with public financing.
Across all regions, three consistent patterns emerge. First, economic geography strongly shapes outcomes, with urban and wealthier areas performing better. Second, governance quality often matters even more than resource endowment, as some less advantaged states outperform expectations through stronger institutions. Third, inequality is deeply internal to regions, not just between them, reflecting uneven subnational development trajectories.
What emerges from this analysis is a system in transition, but not yet transformation-ready. Formal sector contributions remain stable but limited in reach. Private insurance is present but narrow in scope. Equity-based financing is expanding, but not yet at a scale sufficient to redefine the system’s architecture. Instead of converging toward a unified model, Nigeria continues to operate a fragmented, multi-channel system that weakens efficiency, limits risk pooling, and perpetuates inequality.
The policy challenge is therefore no longer expansion alone, but structural transformation. This transformation must begin with integration. Consolidating fragmented schemes into a more unified national framework would improve efficiency, reduce duplication, and enable effective cross-subsidisation. It must also prioritise informal sector inclusion through flexible, context-sensitive contribution models. Strengthening equity financing mechanisms such as the Basic Health Care Provision Fund and the Equity Fund is essential, but their impact will depend on scale, transparency, and effective targeting.
Equally critical is the need to improve state-level governance and accountability. Variations in enrollment across states underscore the importance of institutional capacity, public financial management, and service delivery quality. Building public trust is indispensable in a system that relies on voluntary participation.
Finally, fiscal sustainability must anchor all reform efforts. Expanding coverage through subsidies alone is not viable without stronger domestic resource mobilisation. This will require innovative financing mechanisms, improved tax systems, and more efficient use of existing resources.
Nigeria’s health insurance system has moved beyond the experimental phase. It has demonstrated growth, commitment, and potential. However, without deliberate consolidation and structural reform, it risks entrenching a dual reality, one in which a minority enjoys financial protection while the majority remains exposed.
Health insurance, in this context, is more than a technical instrument. It is a reflection of governance capacity, social equity, and the strength of the national social contract. The next phase of reform will determine whether Nigeria’s progress translates into genuine protection for all, or remains, ultimately, progress in numbers without impact. God is with us!
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Chiwuike Uba, Ph.D., CPA, FCMA, a professor of economics with a keen focus on public financial management and public sector reforms, serves as chairman of the board of the ACUF Initiative for Policy and Governance Ltd/Gte. He can be reached at chiwuike@gmail.com and via (SMS) at + 234 803 309 5266
