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US national debt surpasses $40 trillion as borrowing costs rise

The United States national debt has surpassed $40 trillion, resulting in higher mortgage rates, auto loans, and borrowing costs for normal households, as klamm.de reported. Washington policymakers face mounting pressure as structural budget deficits collide with demographic shifts…

US national debt surpasses  trillion as borrowing costs rise

The United States national debt has surpassed $40 trillion, resulting in higher mortgage rates, auto loans, and borrowing costs for normal households, as klamm.de reported. Washington policymakers face mounting pressure as structural budget deficits collide with demographic shifts in federal entitlement programs.

How did the national debt reach $40 trillion?

The federal government ran an annual deficit of roughly $2.2 trillion in fiscal year 2024, taking in $3.9 trillion in revenues while spending more than $6.1 trillion. Natasha Sarin, an economist at the Yale Budget Lab, has documented that this continuous federal borrowing directly competes with private borrowers for available savings and investment capital. Every additional dollar the federal government borrows pushes yields on 10-year U.S. Treasury bonds higher, which prompts commercial banks to raise lending rates for consumers and businesses alike.

National debt surpasses $40 trillion. How will it impact citizens?

Why are mortgage rates and household loans climbing?

The transmission mechanism from federal borrowing to consumer wallets is direct. Mortgage rates that averaged 2.9 percent in 2021 climbed above 6.5 percent by 2026. A homebuyer financing a $1 million property with a 30-year mortgage now pays approximately $400,000 more in interest over the life of the loan than they would have five years ago. Auto loans and credit card rates face the same upward pressure, eroding consumer purchasing power across the economy.

What role do entitlement programs play in the deficit?

Social Security, Medicare, and Medicaid account for more than 50 percent of the federal budget. The cost of these entitlement programs is expanding faster than federal tax revenues. For instance, a retiree entering retirement typically receives about $300,000 in lifetime benefits while contributing roughly $150,000 in payroll taxes over their working life.

The retirement of the baby boom generation is accelerating this gap. The Social Security Trust Fund is projected to be depleted by 2033 if Congress enacts no reforms. Once the trust fund empties, payroll tax revenues will cover only about 77 percent of scheduled benefits.

US national debt surpasses record $40 trillion

What are policymakers proposing to fix the budget gap?

Former House Speaker Paul Ryan has warned that addressing the trajectory requires politically difficult choices, such as raising the retirement age, reducing benefit payouts, or increasing taxes. Instead of pursuing structural reforms, lawmakers have allowed the debt-to-GDP ratio to climb above 120 percent in 2026, compared to roughly 60 percent in the 1990s.

Financial markets could force Washington’s hand if bond yields climb past 5 percent or if international investors pull back from U.S. debt. Such a shift would trigger a sharp rise in borrowing costs, crowding out other federal spending and forcing consolidation under severe economic pressure.

Frequently Asked Questions

When is the Social Security Trust Fund projected to run out of money?

Without congressional intervention, the trust fund will be depleted by 2033, leaving incoming tax revenues to cover approximately 77 percent of promised benefits.

US national debt nears staggering $40 trillion milestone

How much higher are mortgage rates now compared to 2021?

Mortgage rates have risen from an average of 2.9 percent in 2021 to more than 6.5 percent in 2026.

What percentage of the federal budget do entitlement programs consume?

Social Security, Medicare, and Medicaid together make up more than 50 percent of total federal spending.

US national debt now stands at $40 trillion

What is the current level of the U.S. debt-to-GDP ratio?

The national debt-to-GDP ratio stands above 120 percent, up from approximately 60 percent during the 1990s.

About the author: Marcus Liu - Business Editor

MBA and ex‑B bureau chief specializing in global finance and fintech. Marcus speaks Mandarin, Japanese, and English, and has interviewed CEOs from the Fortune 50 to Y‑Combinator unicorns. Marcus Liu delivers sharp analysis on markets, startups, and corporate strategy for investors and entrepreneurs alike.