The International Monetary Fund and World Bank have approved the first major update since 2017 to the framework used to assess debt sustainability in low-income countries, broadening its treatment of domestic debt, climate adaptation and long-term development needs as governments across Africa confront higher debt burdens, more expensive financing and growing investment requirements. The revised framework, which is expected to become operational in the second half of 2027, is intended to give governments and lenders a more detailed assessment of fiscal risks while helping determine how much room countries have to invest in infrastructure and climate resilience without undermining debt sustainability.
The changes come as the debt environment facing low-income countries has become more complex since the previous review. According to the IMF and World Bank, borrowing sources have become more diverse, with a growing role for domestic borrowing and external financing on commercial terms. Debt levels have also risen in many low-income economies, while development and climate-related financing needs have increased. The revised framework is therefore designed to account for risks that are less visible when sovereign debt is assessed primarily through traditional external-debt measures.
The scale of the challenge is particularly relevant to Africa. Reuters reported that about 14% of low-income countries are currently in debt distress, while a further 33% are at high risk of debt distress. The IMF also said recent economic shocks had reversed improvements in the debt landscape recorded after 2021, bringing the number of countries at high risk or already in distress back towards pre-pandemic levels.
For African governments, the implications extend beyond the classification of debt as sustainable or unsustainable. Debt assessments influence borrowing decisions, fiscal policy and, more broadly, how governments and development partners determine the space available for public investment. The revised framework is intended to help distinguish more precisely between countries experiencing some degree of debt stress and those whose debt burdens are considered unsustainable, while improving the assessment of debt-carrying capacity.
One of the most significant changes is the stronger treatment of domestic debt. The World Bank said the reforms introduce a new domestic-debt module that will provide a more systematic assessment of vulnerabilities, including risks arising from the relationship between sovereigns and domestic banks. This matters in African economies where governments increasingly rely on domestic markets to finance budget deficits and refinance maturing obligations.
Domestic borrowing can provide governments with an alternative to foreign-currency debt, but it can also create pressures within local financial systems. Heavy sovereign borrowing from domestic banks can affect the availability of credit to businesses, while rising government financing costs can increase pressure on public budgets. Bringing these vulnerabilities more systematically into debt sustainability assessments could therefore provide a fuller picture of the risks facing both governments and domestic financial markets.
The revised framework also introduces a longer-term development module covering infrastructure, human capital and climate adaptation. According to the World Bank, the new approach is intended to help countries assess how much fiscal space may be available for such investment while considering the longer-term growth and fiscal consequences. The IMF similarly said the reforms would allow countries to better assess the fiscal space available for development and climate adaptation while containing debt vulnerabilities over time.
That shift is important for Africa because the continent’s infrastructure gap is occurring alongside a growing need to invest in resilience. Governments are expected to expand electricity systems, transport networks, water infrastructure and urban services while also responding to climate-related pressures on agriculture, natural resources and public infrastructure. When debt assessments focus heavily on near-term fiscal adjustment without accounting adequately for productive investment, governments can face difficult choices between preserving debt sustainability and funding projects that could strengthen future economic capacity.
The revised framework does not, however, create additional financing for these investments. Instead, it changes the analytical basis on which fiscal space and debt risks are assessed. Its practical effect will therefore depend partly on how governments, lenders and development partners use the information generated by the new framework. The IMF and World Bank have emphasised that the framework remains an analytical tool for supporting borrowing and lending decisions rather than a mechanism for resolving debt problems itself.
Data quality will also become increasingly important. The IMF said its review found that near- and medium-term economic projections used in debt analysis had generally been reliable, but longer-term forecasts for exports and revenues showed some optimism bias, alongside data gaps involving areas such as state-owned enterprises. The revised framework is intended to strengthen stress testing and forecasting while encouraging countries to improve the reporting and transparency of debt data.
For African public institutions, this places debt transparency closer to the centre of development finance. Governments increasingly need to account not only for conventional sovereign bonds and multilateral loans but also domestic liabilities, state-owned enterprises and other financing arrangements that can create contingent fiscal obligations. Better information can improve the ability of lenders and governments to identify vulnerabilities before they become acute, although the quality of any assessment will remain dependent on the underlying data.
The timing is also relevant for countries undergoing or considering debt restructuring. Reuters reported that Senegal’s debt restructuring plans could eventually intersect with the revised framework, although the IMF has said it will assess Senegal’s debt sustainability using the current framework while taking into account the transition to the new approach. The IMF has not specified how the revised treatment of domestic debt could affect Senegal’s restructuring.
For climate finance, the changes could also influence how governments frame investment needs. Climate adaptation projects often require substantial upfront spending while their economic benefits may materialise over longer periods. Roads designed to withstand flooding, water systems strengthened against drought and resilient electricity infrastructure may not immediately generate revenues comparable to their capital costs, even when they reduce future economic losses. A debt framework that explicitly considers long-term development and adaptation needs provides a more structured basis for examining these trade-offs, without removing the requirement for governments to demonstrate that borrowing remains sustainable.
The framework’s treatment of climate adaptation is therefore less about creating a special category of climate borrowing than about recognising that long-term investment needs form part of the fiscal environment in which debt sustainability is assessed. For African economies, that distinction matters because climate resilience is increasingly connected to public expenditure, economic productivity and the protection of existing infrastructure.
The reforms will not remove the underlying constraints facing governments. Borrowing costs, limited domestic revenues, foreign-exchange pressures and large infrastructure requirements will continue to shape fiscal choices. Nor will a revised analytical framework by itself resolve the financing gap confronting low-income countries. Its significance lies instead in how it may improve the information available when governments decide how much to borrow, where to invest and which risks can be carried over the longer term.
As the new framework moves towards implementation in the second half of 2027, its relevance for Africa will ultimately depend on how effectively it captures the interaction between debt, domestic financial markets, climate exposure and development investment. For governments facing pressure to expand infrastructure and strengthen resilience while keeping public finances under control, the quality of that assessment will increasingly form part of the foundation on which major financing decisions are made.
