“Three international bodies warn of risks of rising debt and soaring borrowing in major economies”
What actually happened
The IIF's quarterly Global Debt Monitor, the OECD's Interim Economic Outlook and IMF chief Kristalina Georgieva each flagged rising government debt and borrowing costs on or around 23 September 2026. The OECD's report, confirmed via its own September 2026 publication, centres on resilient but moderating global growth alongside rising bond yields and fiscal strain, exactly as the article describes. The IIF's $365tn global debt figure sits on the well-documented trajectory of the IIF's own Global Debt Monitor series, which recorded roughly $348-353tn in earlier 2025-2026 editions.
Key facts
- IIF: global borrowing put at "$365tn (£275tn) in global borrowing", with the IIF predicting a "structurally debt-intensive future".
- IIF singled out "the US, France, the UK, and Japan" as facing "persistently large deficits and rising interest expenses", comparing them to debt-distressed emerging markets.
- OECD's Cormann: "Thirty-year government bond yields are at their highest in 15 years or more in six of the G7 economies", raising both government and private borrowing costs.
- OECD raised 2026 global growth forecast to 2.9% (from 2.8% in June) but trimmed 2027 from 3.1% to 3%, confirmed independently by Euronews's same-day reporting of a lift "to 2.9%".
- IMF's Georgieva said global shocks had been "pushing debt levels up like a staircase not to heaven", calling for political courage to cut borrowing.
- UK-specific: OECD cut UK inflation forecast for 2026 from 3.7% to 3.1%, and raised UK growth forecast to 1.1% from 0.9% in June.
What to watch for
Watch whether the IIF's "structurally debt-intensive future" framing survives contact with actual bond auctions this autumn, and whether the flattering UK growth upgrade (0.9% to 1.1%) holds once the government support measures cited by the OECD are costed out. The next debt monitor and G7 bond yield moves will show whether this was a one-off warning or the start of a repriced era.
