US National Debt Surpasses $40 Trillion as Annual Interest Servicing Reaches $1.25T
Resolved · macro data · Occurred · Assessed · 1 sources
This assessment is dated 2026-09-28. Check what remains unresolved below before relying on it.
What changed relative to expectations?
Expanding Treasury debt issuance to service $1.25T in annual net interest increases primary dealer supply absorption burdens, steepening long-dated yield term premia.
| Question | What the evidence establishes |
|---|---|
| What was reported? | Reported factUnited States total national gross debt has officially surpassed the $40 trillion threshold. |
| What else was confirmed? | Reported factAnnualized debt servicing interest costs reached $1.25 trillion in 2025. |
| Does the valuation support acting? | UnknownRequires applying the change to specific holdings. |
| What would change the assessment? | UnknownUS Treasury Refunding and Auction Tail Metrics — Monitoring bid-to-cover ratios and dealer absorption across upcoming Treasury coupon sales. |
What would this event cost your holdings?
Apply your own hypothetical returns to current holding values. The calculator does not infer security effects from this event.
Test this event against my holdingsReported facts
- · United States total national gross debt has officially surpassed the $40 trillion threshold.
- · Annualized debt servicing interest costs reached $1.25 trillion in 2025.
- · Higher financing costs coincide with 10-year Treasury yields trading at 5.23%.
Public research record
Research framework · page evidenceCompleted event assessment
Treasury supply overhang expanding term premium on long duration
| Type | Claim | Scope |
|---|---|---|
| Assumption | United States total national gross debt has officially surpassed the $40 trillion threshold. | 2026-09-28 |
| Interpretation | Treasury supply overhang expanding term premium on long duration | TLT |
Countercase, invalidators, and sources
Treasury auction metrics demonstrate solid indirect bidder demand, containing yield expansion despite elevated supply volumes.
- · US Treasury Refunding and Auction Tail Metrics — Monitoring bid-to-cover ratios and dealer absorption across upcoming Treasury coupon sales.
- The United States Debt Just Passed an Auspicious Milestone. · 2026-09-26
What remains unresolved
- Base path
- Ongoing coupon supply maintains upward pressure on long-end term premia, holding benchmark yields near multi-year highs.
- Adverse path
- Weak primary auction bid-to-cover ratios trigger secondary market sell-offs, pushing long Treasury yields sharply above 5.35%.
- Supportive path
- Treasury auction metrics demonstrate solid indirect bidder demand, containing yield expansion despite elevated supply volumes.
- · US Treasury Refunding and Auction Tail Metrics — Monitoring bid-to-cover ratios and dealer absorption across upcoming Treasury coupon sales.this week
Evidence
- The United States Debt Just Passed an Auspicious Milestone.2026-09-26
“U.S. national debt has surpassed $40 trillion with interest costs hitting $1.25 trillion in 2025.”
Supports: U.S. national debt surpassed $40 trillion with annual interest costs hitting $1.25 trillion in 2025.