WASHINGTON — August 19, 2026: The United States’ national debt has crossed the $40 trillion mark for the first time, highlighting mounting pressure on the federal budget as government spending continues to outpace revenue.

Treasury Department figures showed total outstanding federal debt reached approximately $40.05 trillion on Tuesday. Of that amount, about $32.27 trillion was debt held by the public, while roughly $7.78 trillion represented intragovernmental holdings.

The debt has more than doubled since Donald Trump first entered the White House in January 2017, when it stood at about $19.95 trillion. The increase has been driven by a combination of pandemic-era spending, tax and spending policies under successive administrations, rising entitlement costs and higher interest expenses.

Trump’s two presidential terms have so far accounted for about $11.6 trillion of the increase. During Joe Biden’s four years in office, federal debt rose by approximately $8.4 trillion.

A significant portion of the borrowing surge occurred during the COVID-19 pandemic, when Washington approved massive emergency spending to support households, businesses and the wider economy. Subsequent spending on infrastructure, clean energy and other programs added to the government’s borrowing requirements.

Fiscal watchdogs are warning that the growing debt burden could become increasingly difficult to manage without major changes to federal taxation and spending.

The Committee for a Responsible Federal Budget has argued that continued borrowing could put additional pressure on inflation, government priorities and the country’s ability to respond to future economic or geopolitical shocks.

Rising borrowing costs add to pressure

The debt milestone comes as investors demand higher returns on longer-term US government bonds. Yields on long-dated Treasuries have climbed sharply, reflecting concerns about the scale of government borrowing and the amount of debt entering financial markets.

Higher Treasury yields can feed into borrowing costs across the economy, affecting mortgages, vehicle financing and business loans.

Treasury Secretary Scott Bessent has responded by increasing the size of government buybacks of longer-maturity Treasury securities. The purchases are intended in part to improve market conditions and help contain pressure on long-term yields.

Trump, meanwhile, has continued to call for lower interest rates. Asked about recent volatility in the bond market, the president said he was not concerned and argued that a strong US economy should ultimately lead to lower borrowing costs.

Deficit remains elevated

The latest debt milestone follows a $432 billion federal budget deficit in July, the fourth-largest monthly shortfall on record. Customs revenue was weakened by tariff-related refunds, while spending on Social Security and Medicare continued to rise.

After the first 10 months of fiscal year 2026, the federal deficit had already surpassed the total deficit recorded during the entire previous fiscal year.

The pressure is particularly acute because a large share of federal spending goes toward mandatory programs such as Social Security, Medicare, Medicaid and veterans’ benefits. These programs generally increase as the population ages and benefit costs rise.

Interest payments have also become a major burden. The government is now spending more than $1 trillion a year servicing its debt. During fiscal 2026, interest costs surpassed Medicare spending, making debt service one of the largest individual categories in the federal budget.

Policy choices under scrutiny

Trump’s second-term tax and spending agenda is also expected to add substantially to future borrowing. The Congressional Budget Office has estimated that his major legislative package, known as the One Big Beautiful Bill Act, could increase federal debt by roughly $4.7 trillion.

Although the administration has pursued reductions in some government programs and federal staffing, much of the targeted spending falls within discretionary programs, which represent a smaller portion of total federal expenditure.

Meanwhile, the costs of Social Security, healthcare programs and debt interest continue to consume an increasing share of federal resources.

The $40 trillion threshold therefore represents more than a symbolic milestone. It underscores a widening gap between the government’s revenues and its long-term spending commitments — a gap that could require difficult decisions on taxes, spending or both if Washington is to put the nation’s finances on a more sustainable path.