US national debt has crossed $40 trillion, raising concerns over federal spending, borrowing costs, interest payments and the next debt ceiling deadline.
The United States' national debt surpassed $40 trillion on Wednesday, marking another record and highlighting the growing pressure on the country's federal finances.
The milestone came only five months after US debt crossed $39 trillion in March. It had reached $38 trillion in October, meaning the debt has risen by $2 trillion in roughly 10 months.
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The rapid increase has renewed concerns about the sustainability of US borrowing and the effect of rising interest costs on government finances and the wider economy.
Why is US debt rising?
The US government has been spending more money than it collects in taxes, forcing it to borrow to cover the gap.
Major areas of federal spending include defence, Social Security, Medicare and interest payments on existing debt.
The COVID-19 pandemic also contributed significantly to the rise in borrowing. The federal government borrowed heavily during Donald Trump's first presidency and Joe Biden's administration to support the economy during the pandemic and its recovery.
More government spending was subsequently approved after Trump signed Republican-backed tax and spending legislation into law last year.
What does $40 trillion debt mean for Americans?
Economists and fiscal policy experts warn that a growing national debt can have consequences beyond government accounts.
Higher government borrowing can contribute to higher interest rates, increasing the cost of borrowing for households seeking mortgages, car loans and other credit.
Experts also warn that rising debt-service costs could leave the government with less money available for other priorities. Businesses may also face higher borrowing costs, potentially affecting investment and wages.
Margaret Spellings, president and CEO of the Bipartisan Policy Center, said the federal debt was already affecting the cost of living and limiting spending and investment.
She warned that the current fiscal trajectory could become significantly more difficult if the US faces another recession, major global conflict or disruption from artificial intelligence.
White House response
The Trump administration has defended its approach to federal finances.
White House spokesman Kush Desai said the administration was focused on reducing waste, fraud and abuse in federal spending while promoting economic growth and improving the country's debt-to-GDP ratio.
The administration also faces competing demands, including defence spending and efforts to reduce household costs such as fuel and groceries.
When could the US hit the debt ceiling?
The United States operates under a statutory debt limit that restricts how much the federal government can borrow.
Congress has the authority to raise, suspend or abolish the limit.
The Bipartisan Policy Center estimates that the US could reach the current $41.1 trillion debt limit between late winter and mid-summer 2027. If that happens, Congress would again have to act to raise or suspend the borrowing limit.
Reaching the debt ceiling does not itself mean the government immediately becomes unable to pay its bills, but failure to raise or suspend it in time could create significant financial and economic risks.
Explainer
The $40 trillion milestone is significant because of the speed at which US debt is accumulating, rather than the headline figure alone. The debt has moved from $38 trillion to $40 trillion in about 10 months.
Another concern is the growing amount of federal revenue required to service existing borrowing. As interest payments increase, policymakers have fewer options for directing government resources towards other priorities without raising revenue, cutting spending or borrowing more.
The issue also creates a political challenge for the Trump administration and Congress. Reducing the debt requires difficult choices over spending, taxation or both, while policies designed to stimulate growth or increase defence spending can require additional government expenditure in the short term.
The approaching debt ceiling adds another potential point of political confrontation. If the limit is reached without congressional action, policymakers would face pressure to resolve the issue before the government's borrowing capacity is exhausted.
The $40 trillion milestone therefore highlights a broader fiscal dilemma: the US has to balance economic growth, defence, social programmes and household costs while managing an increasingly expensive debt burden.
Published: 20 Aug 2026, 07:49 am IST
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