Developing country debt hit a record $9.4 trillion in 2025, rising 5.5% in a single year — the fastest increase in four years. The World Bank's annual International Debt Report makes the core dynamic plain: access to international finance has improved, but the price of that finance has not. Countries eligible for concessional lending now pay an average 8.2% on new borrowing, a level not seen since the late 1980s. Specific cases are worse: Laos at 11.5%, Kenya at 9.2%, the Republic of Congo at 13.88%. The mechanism is straightforward extraction. Private-sector lending drove the surge, which means today's creditors are bondholders, not governments. That single structural shift makes every proposed solution — buybacks, extended repayment periods, rate reductions — harder to execute than the 2005 Gleneagles write-offs. You cannot summon private bondholders to a summit and ask them to take losses for development goals. The World Bank draws a direct line between debt burden and food security. Heavily indebted countries experienced worse declines in the affordability of a healthy diet during global shocks. Debt service crowds out domestic investment, and the crowding-out is not abstract — it shows up in nutrition data. When a government sends 8-14% interest payments offshore, that money does not build clinics or grain reserves. The UK government, preparing for its G20 presidency next year, has appointed Gordon Brown to examine feasibility of changes to the global debt regime. Foreign Secretary Ed Miliband proposed a "new deal" at the IMF annual meetings in Bangkok, centered on mobilizing multilateral development bank balance sheets to buy back outstanding debt. The ambition is real; the levers are weaker than they were twenty years ago. Prime Minister Andy Burnham has framed the debt push as partly about confronting the legacy of slavery — a political framing that adds moral urgency but also complicates negotiation with creditors who do not share the framing. The African Union and successive G20 chairs (Brazil, South Africa) have made similar demands, suggesting a coalition is forming but has not yet produced binding commitments. Preliminary 2026 data shows the pattern accelerating: lending continues at a rapid pace, but at continued high interest rates as global financing costs rose. The World Bank's chief statistician, Haishan Fu, summarized the trap: countries are borrowing more, paying more, and leaving less for long-term development. The debt stock grows, the servicing cost grows, and the productive investment shrinks — a textbook debt spiral for the most vulnerable economies. The structural question is whether the UK's G20 presidency can deliver anything approaching Gleneagles when the creditor base has shifted from sovereign governments to dispersed private bondholders who face no political pressure to grant relief. Without a mechanism to compel or incentivize private-sector participation, the proposals risk being aspirational rather than operative.
