BIS Warns That High Public Debt Has Created a New Fiscal-Financial Stability Nexus
The Bank for International Settlements has warned, in its Annual Economic Report 2026, that record-high public debt has created a new fiscal-financial stability nexus in which risks can originate in, and spread through, government bond markets. The report from the institution often described as the central bank for central banks frames the year as one in which the global economy is making progress but meeting rising perils, and it places elevated sovereign debt at the centre of the risk list alongside shifting inflation dynamics, stretched asset valuations and the financial fragilities building around the artificial-intelligence investment boom.
The central message on public finances is that the line between fiscal policy and financial stability has blurred. With debt high across many advanced and emerging economies, government bond markets have become a potential source of stress rather than only a shock absorber, so a loss of confidence in a sovereign’s debt path can transmit quickly into banks, funding markets and the wider financial system. The BIS argues that this two-way link, where weak public finances threaten financial stability and financial stress in turn worsens the fiscal position, leaves less room for error than in the past and makes credible medium-term fiscal frameworks, rather than open-ended borrowing, a precondition for stability.
The numeric backdrop underlines the warning. The IMF’s April 2026 Fiscal Monitor put global public debt at just under 94 percent of GDP in 2025 and projected it to reach 100 percent of GDP by 2029, a year earlier than it had estimated in April 2025, with the accumulation driven mainly by the largest economies and by rising spending on social needs, defence and interest. A fiscal constraint that tightens while interest bills climb is precisely the setting in which the BIS argues that bond markets shift from shock absorber to potential source of stress.
Debt, inflation and stretched valuations
The report ties the debt warning to the wider macro backdrop. After the inflation shock of recent years, the BIS points to shifting inflation dynamics that leave price pressures more sensitive to shocks than during the low-inflation decades, which keeps real interest rates and debt-servicing costs higher and tightens the fiscal constraint further. At the same time it flags stretched asset valuations and the build-up of financial fragilities around the AI investment boom, a concern that connects to its parallel warning that the AI surge could be inflationary in the near term even if it raises productivity later. The common thread is that high debt reduces the buffer available to respond to the next shock, whether it comes from inflation, financial markets or growth. The report’s money chapter, released on 23 June, separately cautioned that stablecoins in their current form fall short of the properties that underpin trust in money, a theme covered earlier.
Why it matters
The report speaks directly to MENA. For higher-debt importers such as Egypt and Jordan, the warning that fiscal credibility and financial stability are now inseparable reinforces why investors and rating agencies scrutinise deficit and debt paths so closely, and why funding costs can move sharply on fiscal news, an especially relevant point for Egypt as it works through its reform and financing programme. For Gulf issuers, which have become regular borrowers in international debt markets, the same logic raises the premium on disciplined medium-term fiscal planning even where balance sheets are strong and reserves are large, since global investors increasingly price sovereign risk through the lens of debt sustainability. The inflation and rates message matters too: with Gulf currencies pegged to the dollar and regional central banks tracking the Federal Reserve, a world of stickier inflation and higher-for-longer real rates keeps regional borrowing and refinancing costs elevated, rewarding fiscal prudence and longer debt maturities.
Outlook
The Annual Economic Report sets the tone for central-bank thinking into 2027. Its core argument, that high debt has made fiscal and financial stability inseparable, will frame how policymakers weigh deficits, interest costs and bond-market stability, and it lands at a moment when many governments face heavy borrowing needs. For MENA the practical signal is consistent across the income spectrum: protect fiscal credibility, build buffers while conditions allow, and treat debt sustainability as a financial-stability issue rather than only a budget one.
Sources: Bank for International Settlements; International Monetary Fund.
