Central Banks Have Finally Stopped Lying About Sovereign Debt

The interest rate hiking cycle is over. Inflation has been wrestled—barely—into submission. Central banks can now return to their regularly scheduled programming: pretending that government debt levels are neither a problem nor, increasingly, even a choice.

The math suggests otherwise. The Eurozone's debt-to-GDP ratio, which peaked at 98% in 2020, has edged down to 84% by mid-2024. This is presented as vindication. It is actually a masterclass in statistical sleight of hand. Strip away the growth nominal GDP provided by inflation—the phenomenon central banks claim to have defeated—and the underlying debt burden remains stubbornly elevated. When your recovery is powered by the same force you're supposed to be fighting, you haven't solved the problem. You've delayed it.

The United States enters 2026 with a federal deficit projected at 5.5% of GDP. This is not a crisis-year number. This is peacetime. For comparison, the deficit peaked at 14.9% in 2009. We are not at 14.9%. We are not at 10%. We are at 5.5%, and it is considered normal. The gap between revenues and spending has become so wide that fiscal policy no longer functions as a tool. It is simply the operating assumption.

Debt servicing costs tell the real story. Across the G7, interest payments now consume between 2.5% and 3.2% of government revenues. In Italy, it exceeds 4%. These are not sustainable ratios, and everyone knows it. The phrase "sustainable" has become a bureaucratic equivalent of thoughts and prayers—something you invoke when you have no actual solution. Italy has been running at 4% interest costs for a decade. The system persists because central banks permit it to persist.

Implicit yields on 10-year sovereign debt across developed markets reveal the pretense. The U.S. 10-year trades at 4.2%. Germany at 2.1%. The U.K. at 3.9%. These spreads do not reflect genuine market assessments of default risk. They reflect central bank policy, forward guidance, and the institutional certainty that if things deteriorate, policy will adjust again. The market is pricing in the implicit put option that central banks will eventually monetize whatever debt becomes unmanageable. Investors are not pricing risk. They are pricing patience.

Here is what makes the present moment distinct from 2010 or 2012: governments have stopped pretending this is temporary. The Eurozone's fiscal rules, suspended during the pandemic, were formally weakened in 2024. The U.S. has abandoned any pretense of medium-term deficit targets. Japan never bothered with such pretense—its debt-to-GDP ratio breached 200% a decade ago and the country simply continued issuing bonds at near-zero yields. The institutional learning is complete: debt sustainability is whatever the central bank says it is.

This is not a provocative observation. It is an accounting fact. When the ECB holds €1.9 trillion in eurozone government securities as part of its balance sheet, and when the Federal Reserve holds $5.5 trillion in Treasury debt, the traditional borrowing mechanism has been functionally replaced by central bank absorption. Call it what you want—quantitative easing, yield curve control, financial repression—the mechanism is identical. The government spends money it does not have. The central bank purchases the resulting debt. The interest rate remains below equilibrium. Savers and currency holders absorb the implicit tax.

The question before central banks is no longer whether sovereign debt is sustainable. It is whether they are willing to acknowledge the political constraints on their ability to normalize monetary policy. An interest rate environment consistent with genuine equilibrium would price in the actual fiscal trajectory. That rate exists somewhere north of 6% for the U.S., 4% for Germany, and 5% for the U.K. These rates would make government debt service unmanageable within existing budgets. Therefore, these rates cannot be allowed to exist. Central banks will maintain whatever policy stance is required to prevent them.

This is not monetary policy anymore. It is the fiscal system admitting it cannot function without perpetual subsidization from the central bank. Once that admission is made explicit—and it increasingly is—the only remaining question is how long the currency system can withstand the erosion of trust that follows. Central banks have not solved the sovereign debt problem. They have merely nationalized it.