Aug 20, 2026
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The US national debt has reached $40 trillion, doubling over the past decade due to sustained government spending and rising interest costs.

ManyPress

ManyPress

ManyPress Editorial

3 min readSource:BBC Business
US National Debt Surpasses $40 Trillion Milestone

Key facts

  • The US national debt reached $40.05 trillion as of August 18.
  • The debt-to-GDP ratio for the US is 125.8%, according to the International Monetary Fund.
  • Treasury buyback operations will increase to at least $4 billion starting September 9.
  • The yield on 30-year bonds reached 5.34% on Tuesday, the highest level in nearly two decades.
  • The Federal Reserve has held its benchmark interest rate in the 3.50%-3.75% range for five consecutive meetings.

US national debt has reached $40 trillion, a figure that has more than doubled since 2016. Treasury Department data indicates the total reached $40.05 trillion as of August 18, driven by years of federal spending under the Trump and Biden administrations and increasing interest payments.

By the numbers

$40.05tn
Total US national debt as of August 18
125.8%
US debt-to-gross domestic product ratio
5.34%
Peak interest rate on 30-year bonds
6.67%
Average interest rate on 30-year fixed mortgages

Rising Borrowing and Interest Costs

The Congressional Budget Office had previously projected the debt would reach $39.6 trillion only by the end of fiscal year 2026. Current projections suggest the debt could climb to approximately $64 trillion by 2036. The government is also nearing its $41.1 trillion debt ceiling, while the debt-to-GDP ratio currently stands at 125.8%.

Treasury Market Interventions

In response to rising yields on 30-year bonds, which hit a near 20-year high of 5.34%, the Treasury Department announced it would increase its buyback operations from $2 billion to $4 billion. This intervention, effective from September 9 to November 4, aims to provide liquidity support and ease long-term borrowing costs. Following the announcement, 30-year borrowing costs eased to 5.18%.

Economic Context and Federal Reserve Policy

The Federal Reserve has maintained its benchmark interest rate in the 3.50%-3.75% range for five consecutive meetings. While recent data showed a slight easing in inflation and job losses in July, minutes from the Fed's last meeting indicate that some policymakers favor further rate hikes if inflation does not decline toward the 2% target. Meanwhile, average 30-year fixed mortgage rates currently sit at 6.67%.

Timeline

  1. 2016
    The US national debt stood at just under $20 trillion.
  2. September 9
    The Treasury's increased buyback operations are scheduled to begin.
  3. November 4
    The Treasury's increased buyback operations are scheduled to end.

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This article was independently rewritten by ManyPress editorial AI from reporting originally published by BBC Business.

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