US debt interest payments surpass $1 trillion in 2025, prompting stablecoin market intervention

The cost of servicing the United States’ national debt has reached a milestone that reshapes the federal budget: interest payments on publicly held debt exceeded $1 trillion in fiscal year 2025, a level that now outstrips defence spending and Medicare and marks a new era of fiscal strain.

According to the Congressional Budget Office figures cited in the original report, net interest payments rose from $345 billion in fiscal 2020 to roughly $970 billion in fiscal 2025, and when all interest on publicly held debt is counted the total crossed the $1 trillion threshold. The CBO projects cumulative interest costs of about $13.8 trillion over the next decade, nearly double the inflation‑adjusted amount spent over the past 20 years, underscoring how rapidly debt‑service has become a dominant budgetary pressure.

Market observers and policy analysts have warned the trend is self‑reinforcing. “If the people who loan us money get worried we’re not going to pay it all back, we could see higher interest rates, which means we have to borrow more to pay interest,” CRFB analyst Chris Towner warned, framing the risk of a debt spiral if investor confidence weakens. The Committee for a Responsible Federal Budget has noted that under alternative scenarios interest costs could rise still further, potentially reaching $2.2 trillion by 2035 if certain temporary provisions were made permanent or if tariffs were ruled unlawful.

Independent reporting and government data sketch a consistent picture of rising strain. CNBC reported that as early as September 2024 the government was spending over $1 trillion on interest for a roughly $35.3 trillion national debt, driven by Federal Reserve policy that kept benchmark rates at multi‑decade highs. The American Action Forum’s analysis of the Treasury’s September 2025 Monthly Treasury Statement put FY2025 interest outlays at $970 billion, accounting for about 19% of federal receipts and equating to roughly $7,300 per household. The Joint Economic Committee reported in October 2025 that gross federal debt had climbed to $37.85 trillion and that the average interest rate on public debt had more than doubled over five years, amplifying the fiscal drag.

Those numbers are reflected in longer horizon projections. Government and independent forecasts indicate net interest will become one of the fastest growing elements of federal spending, and the debt‑to‑GDP ratio reached 100% by the end of fiscal 2025, a level not seen since the aftermath of World War II. The House Committee on the Budget and other analysts warned that, unless policy changes, interest payments will claim a steadily larger share of GDP and federal outlays in the coming decade.

Against that backdrop Washington has moved to embrace a surprising fiscal partner: stablecoins. The GENIUS Act, enacted in July 2025, requires stablecoin issuers to hold 100% reserves in US dollars or short‑term Treasury bills, a rule that effectively makes regulated stablecoin firms structural buyers of T‑bills. Treasury Secretary Scott Bessent called stablecoins “a revolution in digital finance” that will “lead to a surge in demand for US Treasuries,” and banking analysts see material market impact: Standard Chartered estimates regulated stablecoin issuers could purchase $1.6 trillion in Treasury bills over four years, a volume large enough to absorb much of projected new issuance.

Policymakers and market participants describe the stablecoin channel as a pragmatic response to dwindling foreign demand for US debt. Standard Chartered’s estimate, if realised, would exceed current holdings by many foreign official buyers and could partially replace reduced purchases from traditional sovereign creditors. The Treasury frames the approach as both an innovation in digital payments and a tool to stabilise demand for short‑term Treasuries.

Yet the embrace of stablecoins as quasi‑public buyers raises new questions. Industry data and budget watchdogs point to several risks: concentration of Treasury holdings in regulated private entities, operational and run‑risk in stablecoin platforms, and potential amplification of market volatility if regulatory or technical stress caused rapid redemptions. Analysts also stress that even large stablecoin purchases would not eliminate structural fiscal pressures; rising interest‑rate exposure and growing principal remain the core problem.

Market behaviour reflects the uncertainty. Retail investors and commentators have largely fled to traditional hard assets such as gold and real estate, echoing CNBC’s earlier coverage of investor reaction to rising debt service costs, while crypto markets weigh the competing narratives that on one hand link fiscal stress to higher demand for “digital gold” and on the other expose crypto to tighter regulation and taxation as fiscal authorities seek revenue.

The arithmetic is unmistakable: the federal government now borrows roughly $2 trillion a year, and a growing share of that is destined simply to pay interest on past borrowing. Projections from the CBO, the Joint Economic Committee and fiscal watchdogs such as the Committee for a Responsible Federal Budget indicate interest costs will continue to climb as debt grows and average interest rates rise. Policymakers have signalled they will lean on new regulatory frameworks and private capital, stablecoins prominent among them, to help absorb issuance. Whether that combination of market demand, regulation and fiscal policy will stabilise debt dynamics or only defer harder choices remains the central question confronting fiscal policymakers.