The U.S. national debt has reached a precarious milestone, reaching 100% of gross domestic product (GDP), and putting the country on a path that could trigger six different types of fiscal crises, according to an ominous new warning Thursday from the Committee for a Responsible Federal Budget (CRFB).
With the national debt now effectively equal to the size of the entire U.S. economy, the nonpartisan watchdog group’s latest report, What Would a Fiscal Crisis Look Like? ” depicts a dangerous future ahead. “If the national debt continues to grow faster than the economy, the country could eventually experience a financial crisis, an inflationary crisis, a deflationary crisis, a currency crisis, a default crisis, a gradual crisis, or some combination of crises. Any one of these could cause massive disruption and significantly lower living standards for Americans and people around the world,” the report said.
The report warns that unless policymakers enact a “thoughtful pro-growth deficit reduction package,” disaster could be around the corner. “The United States is deeply indebted and its finances are on an unsustainable long-term trajectory,” the report concluded. The CRFB said that while it was “impossible” to know when a disaster would strike, “some form of crisis is almost inevitable” if course is not corrected.
One of the most alarming scenarios is the “austerity crisis”. In this potential future, a loss of market confidence will force lawmakers to make sudden, sweeping spending cuts or tax increases to calm panic. While deficit reduction is necessary, the CRFB warned that implementing such austerity measures quickly amid a weak economy could trigger the worst economic contraction in nearly a century.
The report estimates that fiscal tightening equivalent to 5% of GDP could reverse modest growth into a 3% economic contraction. That would mark a recession deeper than any recorded postwar recession since 1950, when U.S. output has shrunk by no more than 2% year-on-year. Such a scenario could cause unemployment to skyrocket and business failures to multiply, creating a self-reinforcing depression.
As an example of such an austerity crisis, CRFB pointed to Greece during the Great Recession of the 2010s, when economic weakness led to an “unsustainable spike” in borrowing and bond yields, triggering a series of painful austerity measures that devastated the economy and pushed unemployment to record levels. Portugal and Spain experienced similar but less severe crises during this period. Yanis Varoufakis, the former Greek finance minister who opposed these austerity measures and resigned in protest, was interviewed wealth In February 2024, about the strange mutations of the modern economy in a world of low aggregate demand, warning of a “depressed society” and even the beginning of “technological feudalism”.
In addition to forced austerity, regulators have identified five other crisis scenarios:
1. Financial crisis: If investors lose confidence in the U.S. Treasury market, interest rates could surge uncontrollably. This would devalue existing bonds, potentially triggering a cascade of bankruptcies among banks and financial institutions.
The report cited the collapse of Silicon Valley Bank in 2023 as a “small-scale” preview of how rapid interest rate increases could destabilize the banking industry. But looking more broadly, it points to 2007 as a famous example of a financial crisis, when subprime-backed securities plummeted in valuations, leading to the global financial crisis. Hundreds of financial institutions collapsed, house prices fell by a quarter, output shrank by 4%, unemployment rose to 10%, and the economy took years to recover.
“Fiscal irresponsibility has repeatedly led to financial crises around the world, including in Argentina in 1998, Greece and other countries in Europe around 2009, and Brazil in 2016,” CRFB noted. Investor confidence can shift quickly.
2. Inflation crisis: To avoid defaults or bank failures, the Fed may be forced to “monetize” the debt – printing money to buy Treasury bonds. This could trigger an inflationary spiral that erodes savings and purchasing power, similar to the historical crises in Argentina or the Weimar Republic.
Hedge fund billionaire Ray Dalio has been issuing warnings, including this week with wealth Speech from Davos, Switzerland on the risks of US debt monetization. When it comes to the U.S. economy, Dalio, who has long been an outspoken critic of the rapidly rising national debt, told Fortune that he now believes the crisis is so severe that we are dealing with a “breakdown of the monetary order,” and posed a stark choice: “Print money, or let a debt crisis happen?”
3. Currency Crisis: Reckless fiscal policy could lead to a sudden devaluation of the dollar, undermining its status as the world’s leading reserve currency. A weaker dollar will weaken U.S. geopolitical power and make imported products more expensive.
4. Default crisis: Although considered “very unlikely,” a failure to pay interest or principal on some $31 trillion of debt held by the public would be “catastrophic.” A default would freeze global credit markets, crash stock markets and potentially plunge the world into a deep recession.
Many countries have experienced debt defaults throughout history, including Mexico, Brazil, Peru and Argentina in Latin America, and Russia in the late 1990s. Argentina is still dealing with the consequences of a default on a controversial $20 billion credit line it received from the United States in 2025, which it quickly repaid in full, according to Finance Minister Scott Bessant.
5. Gradual crisis: Perhaps the most insidious scenario is a slow descent without serious incident. Instead, high debt crowds out investment, leading to decades of slower growth. Modeling by the Congressional Budget Office (CBO) suggests that this trajectory could leave real income per capita 8% lower by 2050 than would otherwise be the case.
Japan is a classic example of a progressive crisis. CRFB points out that Japan has maintained extremely high debt levels for decades and avoided a serious crisis, but real GDP has grown by only 10% (0.5% per year) over the past two decades. Albert Edwards, a global strategist at Société Générale and a self-proclaimed “forever bear,” has long advocated an “ice age” theory of financial markets in which every developed country would suffer a fate similar to Japan’s. Edwards told wealth In November 2025, the Ice Age theory lasted until 25 years ago, when the dot-com bubble burst, when the “relationship” between the economy and asset prices “broke down” and the Fed began “throwing money” into recession and low growth through quantitative easing. CRFB warns that some type of crisis is inevitable over the next 25 years. CRFB noted that Western European economies such as France and the United Kingdom are showing signs of a progressive crisis, with slow growth and inflexible fiscal policy, partly due to high borrowing rates.
The report notes that a crisis does not require a single “tipping point,” but can be triggered by a variety of catalysts, including a recession, a “poor” U.S. Treasury auction (resulting in lower demand for U.S. debt), or a debt ceiling violation.
The warning comes as fiscal conditions worsen. Last year, interest costs on the debt soared to about $1 trillion, consuming a near-record 18% of federal revenue and an amount as large as the entire Medicare budget. “With debt at 100% of GDP, the United States has less fiscal space than at any time in history in the event of another war, pandemic, or recession,” the report states.
This story originally appeared on Fortune.com
