A Washington-based policy group is sounding an alarm over the federal government's fiscal trajectory, warning that rising interest costs are consuming an ever-larger share of new borrowing. The National Seniors Policy Center (NSPC) released a report in September 2026 addressed to House Speaker Mike Johnson and Minority Leader Hakeem Jeffries, arguing that the nation is approaching a tipping point where most new debt will merely service existing obligations.
According to data from the Bureau of the Fiscal Service, gross interest on the federal debt is on track to reach approximately $1.4 trillion in fiscal year 2026, which runs from October 1, 2025, through September 30, 2026. The NSPC report highlights a key metric it calls the "interest-to-borrowing ratio"—gross annual interest expense divided by net new borrowing from the public. That ratio stood at roughly 67 cents as of September 2026, up from about 40 cents in 2023 and just over 60 cents in 2024. The center warns that once the ratio crosses 70 cents, the government enters a spiral where most new borrowing funds nothing but the cost of prior debt.
"We are increasingly borrowing new money simply to pay the cost of money we have already borrowed," said Daniel Perrin, president of the NSPC, in the report. "That cycle compounds on itself, and the longer Congress waits to address it, the more difficult and costly it becomes to change course." The report draws on Treasury's quarterly refunding statements and the Congressional Budget Office's August 2026 update, which projects a full-year fiscal 2026 deficit of approximately $2.1 trillion—$200 billion worse than earlier forecasts. Gross federal debt crossed $40 trillion in late August 2026, a milestone the NSPC calls significant but secondary to the interest-to-borrowing ratio as a danger signal.
The report also notes that roughly $7 trillion of outstanding debt, comprising Treasury bills and floating-rate notes, reprices within weeks of any rate change. Each quarter-point increase in the federal funds rate translates almost immediately into about $18 billion in additional annual interest, all financed through new borrowing. The bond market is already signaling stress: on September 16, 2026, the Federal Reserve raised its target rate a quarter point to a range of 3.75% to 4%, its first increase since July 2023. The 10-year Treasury yield crossed 5.04% intraday on September 15, its highest level since 2007, and the 30-year hit 5.35%, a 24-year high. The Dow Jones Industrial Average fell approximately 700 points that day.
Advisors should also monitor competition for bond buyers between the Treasury and large technology companies. According to JPMorgan estimates cited in the report, the five largest AI-related cloud companies plus Nvidia have sold approximately $320 billion in debt so far in 2026, roughly 68% of the Treasury's new long-term borrowing for the year. Goldman Sachs projects about $340 billion more in similar issuance in 2027. During the 2023 debt-ceiling episode, Microsoft bonds briefly yielded less than Treasury bills of the same maturity—a reversal that NSPC treats as an early warning signal. Federal Reserve economists found that hedge funds absorbed about 37% of all net issuance of medium- and long-term Treasuries from 2022 to 2024, roughly equal to all other foreign investors combined. The NSPC warns that a market reliant on leveraged buyers is structurally fragile; in March 2020, a similar unwind required the Fed to purchase $1.5 trillion in Treasuries over three weeks.
For advisors serving clients in or near retirement, the report's analysis of who would bear the immediate cost of a default is particularly concerning. Federal law requires Social Security and Medicare trust fund surpluses to be invested in special-issue Treasury securities. The NSPC calculates that the Social Security trust fund alone holds approximately $2.7 trillion in such securities. A Treasury unable to service its obligations could disrupt the redemption of those securities and delay or reduce benefit payments to the approximately 70 million current beneficiaries—not in 2033 when the trust fund is projected to run short, but immediately. Government money market funds, with approximately $6 trillion in assets under SEC Rule 2a-7, would also face operational risk. A missed bill payment would technically break the buck across the entire category, replicating the systemic pressure seen in 2008 when the Reserve Primary Fund broke the buck on a single Lehman Brothers holding.
The NSPC's Debt Default Clock, maintained with the Compact for America Educational Foundation, tracks twelve fiscal tests against the federal budget and currently stands at two minutes to midnight, the closest in its history. As of the July 2026 review, the government was failing eight of twelve tests. The report is explicit that executive branch interventions—Treasury buybacks, debt maturity management, regulatory adjustments to bank capital rules—have proven unable to sustainably lower yields. Only Congress can act, the NSPC argues, and the longer it waits, the more costly the fix becomes. For advisors, the report underscores the importance of monitoring fiscal policy developments as part of broader retirement confidence and retirement plan health assessments.
