- IMF Rewrites Debt-Risk Framework as Domestic Borrowing and Climate Costs Reshape Low-Income Economies
The International Monetary Fund and World Bank are overhauling the framework used to judge whether low-income countries can sustainably carry their debts, reflecting a financing landscape increasingly shaped by domestic borrowing, commercial creditors, climate investment needs and more complex public-sector liabilities.
The IMF Executive Board reviewed the joint Debt Sustainability Framework for Low-Income Countries on September 9, concluding that the system remains “fit-for-purpose” but requires significant upgrading to capture risks that have changed substantially since its last major review in 2017.
The revised framework is expected to become operational in the second half of 2027.
The changes come after a period in which debt burdens across many low-income economies have increased while governments have become less dependent on traditional concessional financing.
Domestic bond markets, commercial external borrowing and a wider range of creditors now play a larger role, creating refinancing, interest-rate and currency risks that can behave differently from traditional official lending.
At the same time, governments face growing pressure to finance infrastructure, development programmes and climate adaptation even where fiscal space has become increasingly constrained.
Introduced in 2005, the LIC-DSF has become one of the international financial system’s principal tools for assessing whether poorer countries face sustainable debt trajectories and for guiding IMF policy advice, lending decisions and public debt management.
The framework has previously been reviewed in 2006, 2009, 2012 and 2017 as debt structures and analytical techniques evolved.
The latest review found that it has generally succeeded in identifying episodes of debt stress before they materialised, but concluded that increased heterogeneity among countries requires more granular analysis.
One of the most consequential reforms will be a clearer distinction between countries experiencing debt stress and those whose public debt is assessed as unsustainable.
The IMF said the framework will refine how debt-carrying capacity is measured, recalibrate existing thresholds and introduce additional indicators for assessing overall public debt risks.
Executive Directors supported the terminology change, agreeing that references to “debt distress” in relevant IMF policies would generally be interpreted as “debt stress”, except where a country is formally described as being “in debt distress”.
That change is more than semantic because classifications can influence lending decisions, fiscal policy discussions and market perceptions.
The revised approach is intended to distinguish countries facing elevated vulnerabilities from those where the debt stock itself can no longer be sustained under realistic assumptions.
Executive Directors said a more country-specific approach should also allow staff judgment to capture differences in economic structures, financing conditions and vulnerability among low-income countries.
A new model of debt sustainability will produce a mechanical risk signal, supported by additional indicators intended to inform the eventual judgment on sustainability.
Most Executive Directors agreed that the probability thresholds behind that signal, and the individual mechanical signals generated for country assessments, should initially remain unpublished while the Fund gains experience with the methodology.
Some Directors argued for greater transparency, but the majority supported temporary restrictions to allow the IMF to learn how the new system behaves and how potentially sensitive assessments should be communicated.
Domestic debt will receive significantly greater attention under the revised framework. The IMF said growing reliance on local-currency borrowing means debt sustainability analysis can no longer focus predominantly on external obligations, particularly where domestic interest costs, refinancing requirements or concentrated bank exposures could create systemic vulnerabilities.
Executive Directors therefore welcomed a dedicated domestic-debt risk module designed to provide a more structured assessment of those pressures.
The second major innovation is a longer-term module intended to examine how development priorities and climate adaptation affect debt sustainability over extended horizons.
Rather than treating investment requirements solely as additional borrowing needs, the framework is designed to help policymakers assess how much fiscal space might exist for development and climate expenditure while maintaining a sustainable debt trajectory.
That could become increasingly important for countries facing large infrastructure and adaptation requirements but already carrying elevated public debt.
The reforms will also tighten scrutiny of the data underlying debt assessments. Executive Directors emphasised that credible analysis requires comprehensive coverage of public liabilities, including obligations associated with state-owned enterprises, while the Fund plans to introduce a confidence flag for debt data and baseline adjustments where important information is missing.
The objective is to encourage governments to improve the breadth, transparency and reliability of debt statistics without unfairly penalising countries making genuine efforts to strengthen reporting systems.
Forecast realism will receive greater attention as well. The review endorsed stronger realism tools and stress tests designed to identify assumptions about growth, fiscal adjustment, borrowing or other variables that appear inconsistent with historical experience or country circumstances.
The changes reflect longstanding concerns that debt sustainability outcomes can be highly sensitive to optimistic forecasts, particularly where governments are assumed to achieve large fiscal adjustments or unusually strong economic growth.
Despite the methodological changes, the harmonised discount rate will remain unchanged at 5.00% for both the LIC-DSF and the IMF’s Debt Limits Policy. The concurrent review of that rate concluded that there was insufficient justification for an adjustment.
Retaining the existing rate provides some continuity while other parts of the debt-risk framework undergo more substantial revision.
Implementation will not be immediate. The IMF expects the revised framework to apply to country documents submitted for Executive Board consideration after the 2027 summer recess, providing time to complete a new Guidance Note, redesign debt sustainability templates and train country authorities and IMF teams.
Directors stressed that communication will be particularly important where methodological changes produce different assessments of a country’s debt-carrying capacity or risk classification.
The overhaul ultimately reflects a broader shift in the debt problems confronting developing economies.
The question is no longer simply how much external debt a country owes, but how domestic borrowing, commercial financing, state-owned enterprises, climate requirements, refinancing risks and incomplete debt data interact over time.
By broadening that lens, the IMF and World Bank are attempting to distinguish countries that need greater fiscal caution from those requiring deeper debt restructuring while preserving enough fiscal space for development investment.
For low-income countries, the consequences could be significant because debt sustainability assessments influence borrowing strategies, IMF programmes, creditor decisions and the terms on which development finance is provided.
A framework that identifies vulnerabilities earlier could improve policy responses, but greater complexity also places heavier demands on governments’ data systems and institutional capacity.
The test from 2027 will be whether the new methodology produces more accurate warnings without making debt assessments so complex that policymakers, creditors and citizens struggle to understand the judgments on which major financing decisions depend.
