By John Meyer, consultant in financial affairs – Eurasia Business News, August 19, 2026. Article No 3108
The U.S. national debt has surpassed $40 trillion, marking a historic milestone in federal borrowing and intensifying concerns about budget deficits, interest costs and long-term economic stability. Treasury Department data showed total public debt outstanding reached $40.047 trillion on August 18, rising from $39.987 trillion the previous day.
The scale is striking: the United States added its latest $1 trillion in roughly five months. It took 192 years for the country to accumulate its first $1 trillion in debt, illustrating how quickly federal borrowing has accelerated in recent years.
What Does $40 Trillion Mean?
The $40 trillion figure represents total public debt outstanding, which includes debt held by the public and intragovernmental debt. Debt held by the public consists of Treasury securities owned by investors, the Federal Reserve, banks, pensions, foreign governments and other outside holders.
Intragovernmental debt is money the federal government owes to its own accounts, including trust funds such as Social Security and Medicare. This distinction matters because debt held by the public has a more direct effect on financial markets, interest costs and the government’s annual borrowing needs.
According to recent estimates, about $32.2 trillion is held by the public, while roughly $7.8 trillion represents intragovernmental holdings.
Why U.S. Debt Is Rising
Federal debt has increased under presidents and Congresses from both political parties. The core reason is persistent budget deficits: the government spends more each year than it receives in taxes and other revenue.
The Congressional Budget Office projects a federal budget deficit of about $1.9 trillion for fiscal year 2026. Spending has continued to grow faster than revenue, driven by major mandatory programs, defence, healthcare, disaster-related expenses and rising interest payments.
Tax cuts and extensions have also reduced revenue relative to projected spending. More recently, invalidated tariffs forced the federal government to refund more than $100 billion in import taxes, increasing near-term borrowing needs.
Debt-to-GDP Ratio Nears World War II Levels
Economists commonly assess debt relative to gross domestic product, which measures the economy’s annual output. Total federal debt is now approximately 124% of GDP, while debt held by the public is projected to reach about 101% of GDP in 2026.
These ratios place U.S. debt near levels last seen during World War II. The difference is that wartime borrowing was followed by decades of rapid economic growth, strong population gains and fiscal consolidation that helped shrink the debt burden relative to GDP.
Today, the United States faces a more difficult combination: slower long-run growth, ageing demographics, large structural deficits and higher interest rates. If federal borrowing continues to grow faster than the economy, the debt-to-GDP ratio will keep rising.
Interest Costs Become a Major Budget Pressure
Interest payments are now one of the federal government’s largest expenses. The government is expected to spend more than $1 trillion on net interest during fiscal year 2026—an amount projected to exceed defence spending and account for approximately 3.3% of GDP.
Higher Treasury yields have made the challenge more severe. The 30-year Treasury yield recently rose above 5.3%, its highest level since 2007, as investors demanded greater compensation for inflation risk, substantial debt issuance and fiscal uncertainty.
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Every time older, lower-cost Treasury debt matures, the government must refinance it at current market rates. That increases annual interest costs and leaves less fiscal capacity for public services, investment or responses to economic downturns.
What Happens Next?
The $40 trillion debt milestone does not mean an immediate financial crisis. The United States still benefits from deep capital markets, a large economy and the dollar’s central role in global finance. However, it underscores an increasingly difficult fiscal path.
Policymakers face hard choices: reduce spending growth, increase revenue, reform major entitlement programs, improve economic growth or use a combination of all four. Without sustained action, rising debt and interest costs could continue putting upward pressure on Treasury yields, household borrowing rates and the federal budget.
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© Copyright 2026 – Eurasia Business News. Article no. 3108
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