US debt hits record: Should you worry?

Image of a US Treasury bond on a green background with an upward arrow to represent growing national debt.
Paige Fusco, with image by DonkeyHotey

Earlier this week, US gross national debt hit a new high, clocking $31 trillion. Gasp! That’s almost twice what it was a decade ago, and debt is now equal to well over 100% of GDP, hovering at the highest levels since World War II.

Is steadily rising US debt a problem, or is the risk of a financial meltdown overblown? Here’s a quick guide to the debate over debt.

First, what is it? When the federal government spends more than it raises through tax revenue, it runs a deficit. Those deficits are financed by selling Treasury bonds to investors. The US government promises to buy back the bonds by a certain date and repays the interest in the meantime. The total amount of money that the US owes to its creditors is the gross national debt. It rises when the government spends more or has to pay higher interest rates, and falls when the government takes in more revenue — either because of higher taxes or stronger economic growth (or both).

Who holds it? Government agencies hold some of it, but more than three quarters of US debt is held by the public, which includes private investors as well as foreign governments. Foreign governments currently hold about $7 trillion of it, with China ($1.2 trillion), Japan ($970 billion), and the UK ($630 billion) the top three creditors.

Has there always been debt? Yes, the United States first borrowed money (from France) to finance the American revolution! More recently, publicly held debt as a percentage of GDP was relatively low — below 50% — for decades after World War II, as strong growth and high taxes helped offset the costs of the Cold War and the war on poverty.

Tax cuts from the 1980s onwards started to push it up, as did spending for the global war on terror, but the big blow came with the Great Recession of 2009, when emergency stimulus combined with tax cuts set deficits soaring. Trump tax cuts, pandemic stimulus, and the Biden administration’s major spending initiatives pushed it up even further.

And with the Fed now raising interest rates sharply to combat inflation, borrowing costs are rising for everyone — including the federal government. That means the debt pile gets even larger. Today the amount of publicly-held national debt hovers near 100% of GDP, second only to Japan among advanced industrialized nations. But wait, there's more! The Congressional Budget Office has warned that with major government spending programs like Medicare and Social Security set to grow in the coming years as the US population ages, that number could hit 200% by mid-century.

How can the US keep doing this? The strength of the US economy and the fact that the dollar is the world’s most widely used currency mean that people and governments around the world see US treasuries as safe investments.

“The US has an extremely privileged position,” says Claudia Sahm, founder of Sahm Consulting and a former White House economist. “It's debt is the debt that the world wants — when bad things are happening in the world, the US is the safe asset.” There is a reason that the US has a sterling AAA rating from the major credit ratings agencies.

Wasn’t that credit rating dropped at one point? Yes, back in 2011. But that wasn’t because of fears about the US’ ability to pay back debt. It was about willingness: Congress was locked in a game of chicken over the Federal debt ceiling, an artificial limit on borrowing that has existed for almost a century and has been raised more than a dozen times. What ratings agencies started to worry about was whether political risks would interrupt US debt payments, not financial weakness.

Why are some people worried about all this debt? For one thing, the more the government spends on servicing debt, the less it has — in principle — for other spending priorities, like investments in infrastructure, health care, poverty reduction, or the military.

But the bigger — and much longer-term — worry is that the debt will eventually become so high that it could compromise Washington’s ability to pay it back. If that happened, withering trust in the world’s most important currency would send shockwaves through the global economy. Still, that is far, far off in any reasonable scenario, says Sahm. The US is still the world’s strongest and most dynamic economy.

So is that 31 trillion a problem? It’s just a number, says Sahm. As she sees it, the significance of the rising debt is less about scary numbers and more about priorities.

“The conversation shouldn't be about a number, it should be about: what is the government actually doing with taxpayers’ money?”

This article comes to you from the Signal newsletter team of GZERO Media. Sign up today.

More from GZERO Media

This summer, Microsoft released the 2025 Responsible AI Transparency Report, demonstrating Microsoft’s sustained commitment to earning trust at a pace that matches AI innovation. The report outlines new developments in how we build and deploy AI systems responsibly, how we support our customers, and how we learn, evolve, and grow. It highlights our strengthened incident response processes, enhanced risk assessments and mitigations, and proactive regulatory alignment. It also covers new tools and practices we offer our customers to support their AI risk governance efforts, as well as how we work with stakeholders around the world to work towards governance approaches that build trust. You can read the report here.

- YouTube

Brazil’s Supreme Court has sentenced former President Jair Bolsonaro to 27 years in prison for plotting to overturn the 2022 election and allegedly conspiring to assassinate President Lula. In this week's "ask ian," Ian Bremmer says the verdict highlights how “your response… has nothing to do with rule of law. It has everything to do with tribal political affiliation.”

Supporters of main opposition Republican People’s Party (CHP) attend a rally to protest against the arrest of Ekrem Imamoglu, the mayor of Istanbul and main rival of President Tayyip Erdogan, a day after the removal of the CHP's Istanbul provincial head Ozgur Celik by a court over alleged irregularities in a 2023 CHP provincial congress, in Istanbul, Turkey, September 3, 2025.
REUTERS/Umit Bektas/File Photo

After a weekend of mass protests in Turkey, a court in Ankara has postponed its decision in a highly charged case that could oust Turkey’s main opposition leader – and boost the fortunes of long-time President Recep Tayyip Erdoğan.

- YouTube

China is going all in on renewables, breaking monthly records on clean energy installation and generation. Bill McKibben tells Ian Bremmer that Beijing's bet on solar and wind gives them a competitive edge on a new episode of GZERO World.

Stephen Graham, winner of Best Lead Actor in a Limited or Anthology Series or Movie and Best Writing for a Limited or Anthology Series or Movie, Owen Cooper, Best Supporting Actor in a Limited or Anthology Series or Movie, and Erin Doherty, Best Supporting Actress in a Limited or Anthology Series or Movie, for "Adolescence", Best Limited or Anthology Series pose with their awards at the 77th Primetime Emmy Awards in Los Angeles, California, U.S., September 14, 2025.
REUTERS/Daniel Cole

8: Netflix teen murder series "Adolescence" won eight Emmys including for best limited series. Supporting actor Owen Cooper,15, became the youngest male actor to win an Emmy.