# Global debt crisis warnings from OECD, IMF and IIF Major economies face rising debt servicing costs amid geopolitical tensions - **Source:** [Business | The Guardian](https://www.theguardian.com/uk/business) - **Published:** 2026-09-23 - **Topic:** [Finance](https://brifing.si/c/finance) - **Original article:** - **On Brifing:** https://brifing.si/s/e6eba9bd-8b21-4d9d-8452-f20046c011d7 ## Triple warning on debt sustainability The OECD, IMF and IIF simultaneously warned about unsustainable debt trajectories in advanced economies. The IIF's quarterly debt monitor shows $365tn in global borrowing facing pressure from rising rates. Unlike typical emerging market debt crises, the report highlights how the US, UK, France and Japan now face challenges historically associated with distressed sovereigns. Government bond yields have reached 15-year highs in six G7 nations. ## Structural debt drivers intensify Debt accumulation is accelerating due to three structural factors: technological investment races, aging population costs, and post-pandemic economic reshaping. The IIF predicts a 'structurally debt-intensive future' as governments and corporations compete for growth positioning. Unlike cyclical debt increases, these drivers suggest long-term pressure. The report draws parallels between advanced economies and traditionally vulnerable emerging markets. ## Political constraints on solutions With elections approaching in many countries, fiscal tightening becomes politically difficult. IMF's Georgieva emphasized the need for courageous policy actions that politicians may avoid. The OECD notes governments face higher debt-servicing costs precisely when budgets are strained. This creates a vicious cycle where delayed action worsens debt trajectories, as seen in the UK's shifting inflation forecasts. ## Geopolitical shocks compound risks Middle East conflicts and resulting oil price volatility have unexpectedly altered fiscal positions. OECD secretary general Cormann linked bond yield spikes to geopolitical tensions. The UK PM acknowledged how Middle East developments changed their fiscal reality post-election. These external shocks reduce policymakers' control over debt dynamics compared to domestic factors. ## Corporate and household spillover Rising government bond yields increase borrowing costs economy-wide. Businesses face higher capital costs during technological transitions. Households confront mortgage and loan rate hikes. OECD data shows consumption patterns changing in response, with UK growth forecasts revised based on new government support measures. The debt crisis thus impacts all economic actors. ## Secondary risk factors emerging Beyond direct debt challenges, the OECD identified El Niño as a potential amplifier. The weather system could disrupt agriculture and increase food prices, further straining budgets. Oil price resurgence creates additional inflationary pressure. These secondary risks complicate central banks' rate decisions and fiscal planning horizons. ## Diverging regional impacts The report shows uneven consequences: UK inflation forecasts were cut from 3.7% to 3.1%, while US deficits remain persistently high. France and Japan face different structural constraints than Anglo-Saxon economies. This variation reduces prospects for coordinated global action, forcing country-specific solutions to a systemic problem. ## Long-term restructuring needed The warnings suggest temporary fixes won't address structural debt drivers. IMF emphasizes sustainable reduction strategies over crisis management. OECD's growth forecast tweaks (2.9% for 2023) mask deeper imbalances. As Georgieva noted, debt has risen like 'a staircase not to heaven' - requiring fundamental fiscal redesign rather than incremental adjustments. ## Sources covering this story - https://www.theguardian.com/business/2026/sep/23/oecd-global-economy-resilient-iran-war — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._