U.S. Debt Hits $40 Trillion

The United States has crossed a historic financial threshold: The gross national debt has surpassed $40 trillion for the first time.

Treasury figures released Wednesday showed approximately $40.05 trillion in total federal debt. About $32.27 trillion is held by the public, including individuals, banks, pension funds, mutual funds, the Federal Reserve and foreign investors. Another $7.78 trillion consists of obligations between the Treasury and federal accounts, including the trust funds supporting Social Security and Medicare.

The figure is enormous, but it requires context. The national debt is not the same as the annual budget deficit. A deficit occurs when the government spends more in a particular year than it collects through taxes and other revenue. The government borrows to cover that difference, and decades of accumulated borrowing have produced today’s debt.

Nor is the debt a $40 trillion bill that will suddenly be divided among taxpayers. The federal government regularly issues Treasury bills, notes and bonds, pays interest to investors and refinances securities as they mature. Unlike a household, the United States has a large economy, collects taxes and issues debt in its own currency.

That does not mean borrowing is free or unlimited.

The most useful measure of sustainability is debt held by the public compared with the size of the economy. That debt is expected to equal approximately 101% of gross domestic product in 2026. Under current policies, the Congressional Budget Office projects it will reach 120% by 2036, exceeding the record established shortly after World War II.

Several forces are driving the increase. Social Security and Medicare costs are growing as the population ages and more Americans retire. Health-care expenses continue rising. Defense, veterans’ benefits and other federal responsibilities require substantial funding. Tax collections, meanwhile, have not consistently kept pace with spending. Emergency borrowing during the COVID-19 pandemic accelerated the increase, but large deficits have continued after the crisis ended.

Interest has become one of the government’s biggest expenses. Federal net interest costs are approaching $1 trillion annually and are projected to reach approximately $2.1 trillion by 2036. That money pays for past borrowing rather than current services. As older, low-interest debt matures and is replaced with more expensive securities, the government’s annual interest bill grows further.

For American families, the consequences are mostly indirect but increasingly important. Heavy government borrowing can compete with businesses and consumers for available investment money, contributing to higher long-term interest rates. Treasury yields help influence mortgage rates, automobile loans, credit conditions and corporate borrowing costs.

Federal debt is not the only factor affecting those rates. Inflation, Federal Reserve policy and economic growth also play major roles. Still, persistently high borrowing can keep rates higher than they otherwise would be, making homes, vehicles and business expansion more expensive.

Growing interest costs also squeeze the federal budget. More money devoted to debt service means less flexibility for infrastructure, education, scientific research, disaster relief, defense or tax reductions. It also limits the government’s ability to respond to a future recession, pandemic, war or financial emergency without borrowing even more.

The risks extend beyond America. Treasury securities are widely treated as a safe global investment and are central to banking, trade and foreign-exchange reserves. Their interest rates influence borrowing costs throughout the world. If investors begin demanding substantially higher returns to hold American debt, interest rates could rise for governments and companies in many countries. A serious loss of confidence could also produce instability in currencies, bond markets and international trade.

That does not mean a debt crisis is imminent. The United States still benefits from the size of its economy, the global use of the dollar and the enormous Treasury market. The immediate danger is less about suddenly running out of money and more about gradually losing financial flexibility while interest consumes a growing share of federal revenue.

There is no single or painless solution. A sustainable plan would likely require both spending and revenue changes introduced gradually over several years. Options include improving the efficiency of federal health programs, strengthening Social Security’s finances, reviewing defense and other spending, reducing unnecessary tax breaks, improving tax collection and ensuring revenue is sufficient to meet long-term commitments.

Policies that expand the workforce, productivity and economic growth can also make the debt more manageable. However, economic growth alone is unlikely to eliminate deficits of the current size.

The debt ceiling presents a separate issue. Raising it allows the government to pay obligations already approved; it does not authorize new programs or correct the underlying deficit. Refusing to raise it could trigger a default, potentially damaging credit markets without reducing the commitments that created the debt.

The goal does not necessarily have to be paying off all $40 trillion. A more realistic first step is to stop the debt from growing faster than the economy. The longer that adjustment is delayed, the larger—and more difficult—the eventual changes will have to be.