Will a Global Debt Crisis Happen in 2026?

The Institute of International Finance (IIF) reported global debt — spanning government, corporate, household, and financial sector — reached $313 trillion in 2023, equivalent to 333% of global GDP. This represents a $100 trillion increase since 2015 and a $50 trillion increase during the COVID-19 pandemic alone. Developed market government debt-to-GDP ratios: Japan 260%, Greece 172%, Italy 143%, US 123%, France 112%, UK 104%. The absolute size of debt is less important than the interest burden, which rises as low-rate COVID-era debt matures.

Japan's debt situation is uniquely precarious: 260% debt-to-GDP ratio, financed primarily by domestic investors (the Bank of Japan holds 54% of JGBs). The Bank of Japan's yield curve control policy (capping 10-year rates at 1%) required purchasing unlimited bonds, suppressing global borrowing costs via carry trades. As the BoJ normalizes policy, Japanese interest costs rise and yen carry trade unwinding creates global volatility. The August 2024 yen carry trade unwind triggered a 12% Nikkei decline in days. A disorderly BoJ normalization remains the most underappreciated systemic risk.

The 2021–2024 rate-hiking cycle means debt maturing in 2024–2027 refinances at 4–5% rather than 0–1% COVID-era rates. For the US, net interest payments on federal debt reached $880B in FY2025, exceeding the defense budget ($862B) for the first time — and CBO projects interest costs rising to $1.6T by 2034. For emerging markets, dollar-denominated debt becomes more expensive as both rates and the dollar remain elevated. Countries including Pakistan, Ghana, Ethiopia, Sri Lanka, and Zambia have already restructured debt since 2022.

75+ emerging market and developing countries face debt distress according to the IMF. The IIF estimates $8.3T in emerging market dollar-denominated debt, which becomes more expensive as the dollar appreciates. Countries with high external debt ratios and commodity export dependence are most vulnerable: Ecuador, El Salvador, Pakistan, Tunisia, Egypt. China, the world's largest bilateral creditor ($170B+ in official claims), has been slow and opaque in debt restructuring, delaying resolution through G20 Common Framework mechanisms.

The IMF has $1T in available lending capacity, significantly upgraded following COVID. Bilateral central bank swap lines (the Fed's swap network covers major developed and emerging markets) provide dollar liquidity without IMF conditions. The G20's Common Framework for Debt Treatments provides structured negotiation mechanisms. These multilateral safety nets significantly reduce the probability of a 1997 Asia-style contagion crisis, as lender-of-last-resort functions are better institutionalized.

Post-2008 banking reforms (Basel III capital requirements, stress testing, living wills) have made individual banks more resilient, but systemic interconnectedness has migrated to non-bank financial intermediaries (NBFI): money market funds ($6T), private credit funds ($2.5T), hedge funds ($5T), and insurance companies. The 2022 UK gilt crisis (triggered by LDI pension fund strategies) demonstrated how NBFI stress can rapidly become systemic. The Bank for International Settlements identified NBFI contagion risk as the leading source of financial stability concern in 2025.

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情報源: IMF Global Financial Stability Report, April 2026

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情報源: Carmen Reinhart and Kenneth Rogoff, 'This Time is Different' Follow-up Analysis

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情報源: Nouriel Roubini (Atlas Capital), 'MegaThreats' Framework

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情報源: Bank for International Settlements Annual Economic Report, 2025

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情報源: Ray Dalio (Bridgewater), 'Big Debt Crises' Framework Applied to 2026