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    U.S. National Debt — Live Estimate

    $37,341,834,235,604

    This figure is a model-derived estimate based on a Treasury base value of $35,465,000,000,000 recorded on September 29, 2025, advancing at an estimated rate of approximately $2.00 trillion per year. It is not an official real-time Treasury feed. Methodology.

    Deficit Bomb is an independent publication that tracks the U.S. national debt, the annual federal deficit, and the spending, revenue and interest forces behind it. We combine public data with plain-language explanation so readers can follow how policy decisions shape the country's fiscal trajectory — and what the options for change actually are.

    The U.S. Fiscal Picture, In One Place

    A concise, data-driven overview of where the national debt stands, how it grows, and the deficits, spending, revenue and interest costs driving it.

    Total Debt (est.)

    ~$35.5T

    Live estimate from Treasury base

    FY2024 Deficit

    $1.84T

    CBO estimate

    Net Interest (FY24)

    $880B

    Treasury / CBO

    Federal Revenue (FY24)

    $5.13T

    CBO estimate

    National Debt

    How the Debt Has Grown

    Total public debt outstanding has risen across administrations of both parties, accelerating after the 2008 financial crisis and again during the pandemic. The figure below shows total debt at fiscal year-end.

    Historical total public debt outstanding, fiscal year-end. Source: U.S. Treasury.

    The national debt is the cumulative total the federal government has borrowed to cover the gap between what it spends and what it collects in revenue. When spending exceeds revenue in a given year, the shortfall is the deficit; the borrowed amount is added to the debt. Years of persistent deficits — combined with interest costs that now compound on the balance — have pushed total debt above $35 trillion.

    Two forces do most of the work: spending that grows with an aging population and rising health costs, and revenue that has historically covered a smaller share of that spending. The gap is financed by borrowing, and the interest on that borrowing has become one of the largest single line items in the federal budget.

    Deficits

    Annual Federal Deficits

    The deficit is the yearly shortfall between federal spending and revenue. Deficits spiked during the pandemic and remain elevated; negative values below indicate a deficit.

    Federal budget deficit by fiscal year (negative = deficit). Source: CBO.

    Spending vs. Revenue

    Where the Money Goes

    Federal spending is concentrated in a few large categories — Social Security, health programs, defense and interest on the debt.

    Major federal spending categories, FY2024. Source: CBO, OMB.

    Featured Analysis

    Interest Is Quietly Becoming the Story

    As debt has grown and rates have risen, net interest has moved from a minor cost to one of the largest items in the budget.

    Net Interest (FY24)

    $880B

    Up from $475B in FY2022

    Share of Revenue

    ~17%

    Interest as a share of federal revenue

    Projected Path

    Rising

    Sensitive to rates and debt level

    Interest costs depend on two things: the size of the debt and the interest rates applied to it. When either rises, the federal government must devote a larger share of revenue simply to service past borrowing — leaving less room for everything else.Read more →

    Latest Policy Developments

    Debates over the debt limit, discretionary spending caps, and revenue proposals continue to shape the trajectory. Deficit Bomb tracks these developments with a neutral lens, distinguishing enacted policy from proposals.

    See the political record →

    Sources & References

    Every important numerical claim on this site is backed by an authoritative public source — primarily the U.S. Treasury, the Congressional Budget Office, and the Office of Management and Budget.

    View sources →

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