US government bond yields have been increasing for nearly two months, leading to higher costs for the nation’s growing debt. The yield on the 30-year bond, in particular, is trading near its highest level since 2003, driven by a combination of factors.
Market observers attribute this surge to intensified fiscal concerns, a record volume of corporate bond issuance, questions about the Federal Reserve’s policy, and investors demanding higher yields to offset risk. This trend has pushed longer-dated debt yields upward, exacerbating the impact of the nearly $40 trillion government debt load.
Fixed income strategists note that the rise, which began in June, is due to several variables. These include a budget deficit expected to surpass its 2025 level, inflation remaining above the Federal Reserve’s 2% target despite recent moderating data, and a rush of corporate debt issuance competing with Treasurys for investor attention. The overall move also reflects a rising term premium, which is the additional yield investors require to hold US debt.
The US experienced a budget shortfall of $432.3 billion in July, marking the widest single-month gain since March 2021. This deficit is likely to result in a $2 trillion deficit for the full year ending September 30. Total government debt is just under $40 trillion, with the public portion soon to reach 100% of gross domestic product. Debt financing costs have reached $1.12 trillion through July and are projected to hit $1.37 trillion for the full fiscal year, an increase of approximately $84 billion from 2025. This year, the government has spent more on debt financing than on any other category except Social Security and Medicare.
The surge in artificial intelligence investment has coincided with a significant increase in corporate bond issuance. US companies have issued nearly $1.7 trillion in bonds so far this year, a 27% increase from the same period last year and exceeding the total for all of 2025. This trend is also observed globally, with government debt yields rising worldwide. While US Treasury debt is typically considered the world’s deepest and most liquid market, it still faces competition from this corporate issuance.
The Federal Reserve’s stance also plays a role. New Chairman Kevin Warsh has maintained an opaque approach regarding future interest rate movements, contributing to market tension. Despite the Fed keeping its benchmark rate steady between 3.50% and 3.75% all year, yields have continued to climb. Markets currently anticipate a low probability of a Fed rate hike in September, with a significant increase not expected until December, according to the CME Group’s FedWatch tool. This has led some to question the Fed’s commitment to its 2% inflation target.
Anshul Pradhan, head of US rates research at Barclays Capital, noted that these pressures have been strong enough to override individual soft-data releases, which typically would suggest lower yields. Ed Yardeni, head of Yardeni Associates, described the current environment as testing the limits of when bond investors might protest poor fiscal conditions. However, he also views the higher yields as a vote of confidence in the economy’s strength.
