Rewriting the rules: Why Nigeria’s debt crisis demands global reform

Nigeria’s debt story is often told in reassuring tones. The country is not, by conventional standards, heavily indebted. Its debt-to-GDP ratio remains moderate, especially when compared to advanced economies that operate comfortably at two or three times its level. But this narrative, while technically correct, is profoundly misleading. It obscures the central fact that defines Nigeria’s fiscal reality today: an abnormally large share of the national budget is consumed not by development, not by investment, but by debt servicing.

In recent fiscal cycles, Nigeria has allocated between 70 and 90 percent of its federally retained revenue to servicing debt. In some periods, it has exceeded total revenue, forcing the government to borrow simply to meet existing obligations. It is a structural condition in which the state’s primary fiscal function has shifted from development to repayment.

This is where the global debt question becomes most urgent. Because Nigeria’s predicament is not simply the result of domestic policy choices. It is also the product of a global financial architecture that systematically mismeasures risk and misprices capital for developing economies.

The most consequential distortion is the reliance on debt-to-GDP as the primary measure of sustainability, because GDP is not what the government uses to service debt; revenue is. And Nigeria’s revenue base is extraordinarily weak.

With a tax-to-GDP ratio still in the single digits, the state captures only a fraction of the economic activity it presides over. The result is a dangerous illusion: a country that looks underleveraged on paper but is, in reality, fiscally suffocated. Capital expenditure is persistently compressed. Social spending remains inadequate and even routine governance functions are financed under pressure.

The second distortion lies in the cost of borrowing. Nigeria, like many African economies, pays a significant premium for access to capital. This premium is often justified on the basis of risk, but the scale of the differential suggests a deeper structural bias in how risk is priced in global markets. Countries with similar or even weaker fundamentals frequently borrow at lower rates simply because they are within more favourable financial ecosystems.

The third distortion is Nigeria’s increasing reliance on domestic debt as external markets become less accessible. While this provides short-term financing, it comes at a heavy cost because domestic borrowing carries significant macroeconomic side effects, the main one being the crowding out of the private sector.

The fourth distortion is temporal. Nigeria’s debt obligations are structured in ways that expose it to refinancing risk. Eurobond maturities and short- to medium-term instruments create periodic “debt walls” that must be rolled over under prevailing market conditions. When global liquidity tightens, refinancing becomes more expensive.

The cumulative effect of these distortions is a fiscal structure in which debt servicing crowds out development. In several countries, debt service now exceeds spending on health and education combined. The continent is not borrowing excessively by global standards, but it is paying disproportionately for the debt it carries. This is the essence of the imbalance in the global debt architecture. The system is calibrated in a way that makes stability difficult to achieve and sustain.

Nigeria’s experience brings this imbalance into sharp focus. It is a large economy with significant potential, undertaking reforms to stabilize its macroeconomic environment. The removal of fuel subsidies, the unification of exchange rates, and efforts to improve revenue collection all point in the direction of greater fiscal discipline. Yet these reforms, while necessary, do not resolve the underlying structural problem because even a more efficient Nigeria would still operate within a global system that imposes high borrowing costs, short maturities, and limited flexibility. The question, therefore, is not only what Nigeria must do differently, but what must change in the architecture of global finance.

Debt architecture reform is no longer a theoretical proposition; it is an operational necessity. And Nigeria is well positioned to lead this conversation, both because of its scale and because of the clarity of its predicament.
The starting point must be a redefinition of sustainability. Metrics that prioritize debt-to-GDP over debt service-to-revenue obscure the realities faced by countries like Nigeria. A more accurate framework would align assessments with fiscal capacity, not just economic size.

And beyond metrics, there is an urgent need for a more effective sovereign debt restructuring mechanism. Current processes are slow, fragmented, and often reactive. They are designed to manage crises after they occur, rather than to prevent them. Nigeria could advocate for a system that incorporates automatic standstills during periods of stress, faster creditor coordination, and outcomes that prioritize long-term sustainability over short-term recovery.

Equally important is the question of cost.

Multilateral development banks can play a greater role in de-risking investments through guarantees and blended finance structures. At the same time, there is a need to reexamine how credit ratings are assigned.

Finally, there is a need to rethink the relationship between debt and development. Instruments that link repayment to economic performance – such as GDP-linked bonds or state-contingent debt – offer a way to align incentives and reduce the procyclicality of fiscal policy. These instruments remain underdeveloped, but represent a critical avenue for reform.

But these core reforms, while necessary, are not sufficient. The scale of the imbalance requires a broader and more imaginative redesign of the system itself.

One such reform is the creation of a Global Sovereign Liquidity Facility – an institutional mechanism that could provide temporary, low-cost financing. Unlike traditional bailout frameworks, this facility would be rules-based and pre-emptive, allowing countries like Nigeria to smooth refinancing cycles without resorting to expensive emergency borrowing. Such a facility would directly address the liquidity shocks that currently destabilize developing economies.

A second reform lies in the standardization of debt instruments. Today’s sovereign debt landscape is fragmented, with a proliferation of contracts, covenants, and legal jurisdictions.

This complexity slows down restructuring and increases uncertainty. A move toward standardized bond contracts – with collective action clauses that are truly enforceable across creditor classes – would streamline negotiations and reduce the risk of protracted crises.

Third, there is a compelling case for the introduction of countercyclical repayment frameworks. Under such arrangements, debt service obligations would automatically adjust in response to economic conditions. In periods of low growth or external shocks, payments would be reduced or deferred; in periods of strong performance, they would increase.

Fourth, the role of Special Drawing Rights (SDRs) can be fundamentally reimagined.

Rather than serving as a passive reserve asset, SDRs could be actively channelled toward debt relief and refinancing in developing economies.

A structured mechanism for reallocating unused SDRs from advanced economies to countries like Nigeria would provide a low-cost source of liquidity.

Fifth, there is a need to develop an African Credit Enhancement Platform—a regional mechanism, potentially anchored by institutions such as the African Development Bank, that would pool risk and provide guarantees for sovereign borrowing. By leveraging collective balance sheets, African countries could reduce borrowing costs.

Sixth, legal reform. Introducing statutory frameworks that facilitate orderly restructuring – while balancing creditor and debtor interests – would reduce the legal uncertainties that currently complicate debt resolution.

Seventh, Nigeria and its peers could advocate for a “development-linked” debt classification system, in which borrowing for productive investment – such as infrastructure or energy transition – is treated differently from consumption-based debt. This would encourage lending that supports long-term growth.

Eighth, there is scope for the creation of sovereign debt exchanges or secondary markets specifically designed for developing country debt. By improving liquidity and price discovery, such markets could provide more stable financing.

Ninth, fiscal insurance mechanisms could be developed to protect against specific shocks such as commodity price fluctuations or climate events. For a country like Nigeria, whose revenues are still primarily linked to oil, such mechanisms could stabilize income.

Tenth, and perhaps most ambitiously, there is a need to rethink global financial governance itself. Developing countries must have a stronger voice in the institutions that set the rules of the system.

At its core, Nigeria’s debt challenge is not just about excess; but about structure. A country that spends the vast majority of its revenue on servicing debt is not merely managing obligations; it is operating within a constrained fiscal regime. The persistence of this pattern should prompt a fundamental question: is the objective of the current system to enable development, or simply to ensure repayment? If it is the former, then reform is unavoidable.

Nigeria’s situation makes the stakes clear. The issue is no longer whether the country can borrow, but whether it can grow under the terms on which it does so. And that, ultimately, is a question not just for Nigeria, but for the architecture of global finance itself.

…Dr Hani Okoroafor is a global informatics expert advising corporate boards across Europe, Africa, North America and the Middle East. He serves on the Editorial Advisory Board of BusinessDay. Reactions welcome at [email protected]