U.S.-Iran tensions push Treasury yields to 2007 highs, interest costs could rise by billions

Huo Xing Finance reports that on May 24, according to the Financial Times, as the U.S.-Iran conflict continues to push up oil prices and inflation expectations, U.S. Treasury yields have risen to their highest levels since 2007, potentially forcing American taxpayers to bear an additional billions of dollars in interest expenses. Data shows that the yield on the 10-year U.S. Treasury note has risen to 4.58%, above the Congressional Budget Office’s (CBO) previous forecast of 4.13%; the 30-year Treasury yield has reached its highest level since 2007. If current yield levels persist through the end of this fiscal year, U.S. fiscal interest expenditures will increase by approximately $8 billion; if they remain elevated throughout the entire 2027 fiscal year, the additional interest cost could exceed $30 billion. Markets are concerned that rising oil prices and expanding fiscal deficits will further fuel inflation and intensify selling pressure on U.S. Treasuries. Some Wall Street investors believe the Federal Reserve is underreacting to inflation risks, and that “bond vigilantes” have regained control of the market. Additionally, as long-term interest rates rise rapidly, U.S. mortgage rates have also climbed, prompting discussions about possible interventions such as the Treasury increasing issuance of ultra-short-term debt or the Fed restarting operations similar to “Operation Twist.”