U.S. National Debt Hits $39 Trillion, Adding $5B a Day Since October
U.S. national debt has officially crossed $39 trillion, with roughly $5 billion added every day since late October. Interest costs now rival defense and education spending combined.
The U.S. national debt has officially crossed $39 trillion, with the Treasury adding roughly $5 billion every single day since late October. The pace works out to more than $1 trillion of new borrowing in about seven months.
The numbers
According to Treasury data, updated retrospectively for May 18, the debt landed at $39,008,999,901,378.68. More than $1 trillion has been added since October 23, 2025, about $5 billion per day.
The debt surpassed $39 trillion in mid-March and actually fell below it for several weeks before cresting to this point again. The annualized borrowing pace works out to approximately $1.8 trillion.
Interest is eating the budget
Interest payments are now equivalent to government spending on education and the military combined. That is the line item compounding fastest, and it crowds out everything else in the federal budget.
Interest payments on the national debt have now surpassed what the federal government spends annually on Medicare and Medicaid combined. Let that sink in. The cost of servicing old borrowing now exceeds the cost of providing healthcare to tens of millions of Americans.
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Debt-to-GDP and the deficit problem
The U.S. debt-to-GDP ratio is approximately 123%, far exceeding traditionally safe levels. There have been calls to better align borrowing with this metric: namely, the yearly government deficit should be targeted at 3% of GDP, rather than its current level of more than 6%.
The mere 3% cut would require approximately $10 trillion in deficit reduction over the next decade to reach the target by 2036. Bipartisan agreement on the goal exists; bipartisan agreement on the path does not.
What Wall Street is saying
JPMorgan Chase CEO Jamie Dimon recently warned that the bond market will ultimately prove to be the factor that provokes some action from DC when investors begin to demand higher premiums to continue buying debt.
Bridgewater Associates founder Ray Dalio has long warned of an economic heart attack, whereby service payments on debt would one day choke out public-sector investments. Maya MacGuineas of the Committee for a Responsible Federal Budget added that markets will only tolerate unsustainable borrowing for so long, and the risk of a fiscal crisis gets higher as the days pass.
Options market and stocks to watch
Watch for spillover into rate-sensitive names and anything tied to the long end of the curve:
- TLT: the long-bond ETF is the cleanest read on how the market is pricing duration risk as supply keeps climbing.
- JPM: Dimon has been vocal on the bond market as the eventual disciplinarian; watch for flow tied to bank balance sheets and net interest margin.
- GLD and IBIT: hard-asset proxies that tend to attract bids when the debasement trade is in focus.
- UUP: the dollar index ETF, the other side of the same coin if foreign buyers start demanding more yield.
None of this moves markets in a single session, but it shapes the backdrop for rates, the dollar, and risk assets. For more, see other coverage on Unusual Whales.
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