IMF Warns Rising U.S. Debt Erodes Treasury Bonds' Safety Premium

The International Monetary Fund (IMF) has raised concerns that the escalating issuance of U.S. Treasury securities is diminishing their traditional safety premium, potentially leading to higher borrowing costs worldwide.

"The increase in the US Treasury security supply is compressing the safety premium that US Treasuries have traditionally commanded—an erosion that pushes up borrowing costs globally," the IMF stated in its latest Fiscal Monitor report.

The United States has been issuing substantial amounts of debt, with annual budget deficits averaging approximately 6% of gross domestic product over the past three years—a historically large shortfall outside of wartime or recession periods.

This surge in debt issuance has led to a narrowing gap between the yields of AAA-rated corporate bonds and Treasury yields, indicating a reduced appeal for U.S. government securities.

Additionally, the IMF highlighted that the international "convenience yield" of Treasuries—their safety and liquidity premium—has recently turned negative. In other words, Treasuries now offer a higher yield than the synthetic-dollar equivalents for hedged G10 sovereign bonds.

The erosion of U.S. debt's risk advantage is also evident in other areas of the bond market. While investors have shown decreased interest in Treasuries, demand has surged for debt issued by sovereign, supranational, and agency entities like the World Bank and the European Investment Bank.

The IMF emphasized the need for the U.S. to stabilize its debt trajectory by addressing both revenue and expenditures, including entitlement programs.

"The window for orderly fiscal adjustment is narrowing," the IMF warned. "Advanced economies with large debt loads need concrete, well-sequenced consolidation measures, not aspirational medium-term targets."