The US national debt has reached $40 trillion, prompting concerns from economists regarding rising interest rates and the sustainability of government borrowing.

Key facts
- •US national debt has doubled in the last decade, rising from just under $20 trillion in 2016.
- •The national debt is currently increasing by approximately $7.8 billion per day.
- •US debt is currently 126% of the size of the national economy.
- •The Congressional Budget Office forecasts that US debt will reach approximately $64 trillion by 2036.
- •The Treasury department recently attempted to lower borrowing rates by buying back government debt, though the effect was short-lived.
The US national debt has officially crossed the $40 trillion threshold, a milestone driven by years of public spending under both the Donald Trump and Joe Biden administrations. Economists warn that the rapid accumulation of debt, coupled with high interest rates, is increasing the cost of servicing the government's obligations. While the US remains the world's largest economy, experts note that the current fiscal trajectory is creating significant pressure on both government finances and consumer borrowing costs.
By the numbers
Rising Costs and Market Pressures
Interest payments on government debt are now 15% higher than they were at this time last year, currently accounting for nearly 20% of tax revenue. This expenditure now exceeds the nation's defense budget. The bond market is increasingly demanding higher returns, partly due to concerns over the scale of US borrowing and competition for capital from technology firms investing heavily in artificial intelligence. Economists describe the current situation as a "flashing yellow light" rather than a crisis. The US benefits from the dollar's status as the world's reserve currency, which provides more fiscal flexibility than other nations. However, experts warn that investor appetite for US government bonds is diminishing, forcing the government to offer higher returns to attract buyers.
Impact on Consumers and Future Outlook
The consequences of high government borrowing are expected to reach individual households through increased interest rates on mortgages, auto loans, and credit cards. Furthermore, as firms face higher borrowing costs, these expenses are often passed to consumers through higher prices. Lower-income households are expected to be the most significantly affected by these economic shifts. While the US economy continues to grow, providing tax revenue to help manage debt, analysts remain skeptical about near-term deficit reduction. With political discourse currently focused on tax cuts rather than spending reform or austerity, experts like Mohamed A. El-Erian suggest that significant changes to the deficit are unlikely over the next two to three years.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by BBC Business.



