How Rising Debt Costs Are Eating Into Nigeria’s Budget

Nigeria’s main financial challenge is now less about the total debt and more about the high cost of repaying it.

Recent budget: paying off debt is taking up a large share of government revenue. This leaves less money for things like roads, healthcare, schools, and security. As a result, public finances are under more strain, even as the government tries to grow the economy and attract investment. When managed effectively, rising debt-service costs can limit a government’s ability to invest in the future.

Debt Service Is Taking a Larger Share of Revenue

Federal budget reports show that about 67.2 percent of government income went to paying off debt between January and September 2025. This means that for every ₦100 the government made, almost ₦67 was used for debt payments.

In that same period, debt payments totaled ₦12.52 trillion, which was over ₦2 trillion more than planned. At the same time, government income was much lower than expected, putting extra pressure on the budget.

The main problem is clear: government income is not growing as fast as its debt payments.

The Revenue Problem Behind the Debt Story

Many economists argue that Nigeria’s debt challenge is fundamentally a revenue challenge.

Nigeria’s debt relative to its economy is not especially high, but its income relative to its economy is among the lowest in the world. This means the government does not earn enough for a country its size.

When government income is low, debt payments take up more of the budget, leaving less money for useful projects.

This explains why analysts increasingly focus on debt-service-to-revenue ratios rather than overall debt levels when assessing Nigeria’s fiscal health.

Infrastructure and Social Spending Are Feeling the Pressure

One of the biggest consequences of rising debt-service costs is reduced fiscal space.

Debt obligations must be paid. Infrastructure projects, healthcare programmes, education investments, and social interventions often face delays when revenue falls below expectations.

Budget data shows capital expenditure significantly lagged projections during the first nine months of 2025, while debt payments remained largely unavoidable.

This creates a difficult trade-off.

Every naira directed toward debt servicing is a naira unavailable for roads, hospitals, schools, power infrastructure, and other projects that could strengthen long-term economic growth.

For a developing economy with substantial infrastructure needs, that trade-off carries significant economic consequences.

Why Debt-Service Costs Keep Rising

There are several reasons why debt payments are rising.

Higher Interest Rates

Global interest rates remain elevated. Interest rates around the world are still higher than before the pandemic. This makes it more expensive for countries like Nigeria to borrow money. Nigeria’s debt is denominated in foreign currencies; exchange-rate movements can increase repayment costs when the naira weakens.

Growing Debt Stock

Successive budget deficits have required additional borrowing. Because the government has run budget deficits for years, it has had to borrow more. As total debt grows, the cost of paying it back also increases. Debt service obligations consume a larger share of available income, even if total debt remains unchanged.

What Tinubu’s Government Is Doing

The Tinubu administration has introduced several reforms to improve the country’s finances. MS, exchange-rate adjustments, efforts to expand non-oil revenue, and initiatives to improve investor confidence.

The government says these steps are already working, with more money coming in, higher foreign reserves, and better revenue collection.

However, experts say real financial relief will only come if government income keeps growing, not just from more borrowing. If government income does not increase, debt payments will continue to divert funds from development projects.

Why Revenue Growth Matters More Than New Borrowing

The long-term solution is not necessarily to stop borrowing.

Many fast-growing economies borrow to finance development projects. The key question is whether those projects generate economic returns that exceed borrowing costs.

For Nigeria, expanding revenue sources may prove more important than reducing debt levels in the short term.

Increasing tax efficiency, growing exports, expanding industrial production, attracting long-term investment, and improving oil-sector revenues could help create the fiscal space needed to support development while meeting debt obligations.

The Bigger Picture

The discussion about Nigeria’s debt is changing.

The issue is no longer. It’s not just about how much Nigeria owes anymore. The main worry is how much government money is used up before it can go to schools, hospitals, roads, security, and development projects. As costs continue to rise, the success of Nigeria’s economic reforms will increasingly be measured by their ability to boost government revenue, reduce fiscal pressure, and restore room for investment in national development.

Policymakers have a clear task: make government income grow faster than debt payments. Until then, debt will keep putting pressure on the budget and limit spending on key needs.

Frequently Asked Questions

Why is Nigeria’s debt bill increasing?

Nigeria’s debt bill is rising due to higher borrowing costs, exchange-rate pressures, growing debt obligations, and revenue shortfalls, which are making debt servicing consume a larger share of government income.

How much government revenue goes to debt servicing?

Budget implementation reports show that debt servicing consumed about 67.2 per cent of federal government revenue during the first nine months of 2025.

Why is debt servicing a concern?

High debt-service costs reduce the funds available for infrastructure, healthcare, education, security, and other development priorities.

Is Nigeria’s debt level too high?

Many experts argue that Nigeria’s main challenge is not the absolute size of its debt but its relatively low revenue base, which makes repayment more difficult.

What can Nigeria do to reduce fiscal pressure?

Improving revenue collection, expanding exports, boosting economic growth, attracting investment, and increasing non-oil revenue can help reduce pressure on public finances while supporting development.