A Hidden Debt Mountain
While global headlines have fixated on the surge in United States federal debt, a far larger borrowing binge has unfolded quietly in China, pushing total indebtedness to levels that now overshadow almost every major economy on earth. As President Donald Trump prepares to meet Chinese counterpart Xi Jinping, the diplomatic agenda will likely emphasize technological competition and trade balances, yet beneath the surface lies a financial vulnerability that analysts warn could reshape the global economic landscape. According to Mark Williams, chief Asia economist at Capital Economics, China’s total debt to GDP ratio excluding the financial sector has doubled since 2010 and now exceeds 300%. That places Beijing in what Williams described as a category entirely separate from its peers. The United States, the eurozone, and the United Kingdom have all seen broader measures of public and private borrowing decline as a share of economic output since 2010, even after accounting for pandemic era stimulus. In contrast, China’s trajectory has steepened, fueled by a state directed growth model that depends on ever larger credit expansion to maintain momentum.
Williams noted that China’s borrowing has reached a scale where only Japan carries a heavier load, and even then, the speed of China’s deterioration sets it apart. Total public and private debt in the United States stood at roughly 265% of GDP last year, down notably from pandemic highs. Meanwhile, China’s ratio climbed by more than 120 percentage points over the past 15 years. This divergence suggests that while Washington’s fiscal challenges are serious and widely debated, Beijing’s debt accumulation may represent a more fundamental structural threat to long term stability. The concern is not merely the total amount, but the velocity at which new obligations are outpacing the real economy. With nominal GDP growth slowing to its lowest rate since the reform era outside of the 2020 pandemic shock, the denominator in the debt equation is shrinking just as the numerator swells.
The Breakdown Behind the Ratio
To understand why China’s debt burden alarms economists, it helps to look past the headline government figures and examine the full picture of who is borrowing and why. The debt to GDP ratio measures total borrowing against the size of the annual economy, and China’s has now crossed 302% according to calculations by the National Institution for Finance and Development, a research body under the Chinese Academy of Social Sciences. That marks an 11.8 percentage point jump in a single year, accelerating from the prior year’s increase. The headline figure masks an important internal shift. Chinese households, battered by a prolonged property market collapse, have been reducing debt. Mortgage lending contracted for an eleventh consecutive quarter, and annual household debt growth slowed to just half a percent, a record low. In other words, families are paying down loans and avoiding new ones.
The public and corporate sectors, however, are moving in the opposite direction. Government borrowing jumped 7.6 percentage points last year, while nonfinancial corporate debt rose 6.2 percentage points. When local government financing vehicles are included, nearly 40% of all outstanding debt is owed by the public sector. Official figures show that China’s government debt reached approximately 96 trillion yuan by the end of 2025, with central authorities holding about 41 trillion yuan and local governments accounting for the remainder. While officials emphasize that this government debt figure amounts to roughly 68.5% of GDP, well below the G20 average, that metric excludes the vast corporate obligations and hidden liabilities that have accumulated outside official balance sheets. The broader 300% measure captures these corporate and household burdens, painting a far more sobering portrait of national indebtedness.
What is driving this divergence? Households are deleveraging because falling home prices and weak income growth have destroyed confidence. Companies and local governments, however, face a different incentive structure. Local officials remain under intense pressure to deliver economic growth, which often translates into subsidized loans for favored industries such as artificial intelligence, electric vehicles, and robotics. Central authorities have vowed to restructure local government debt and prevent new hidden borrowing, but the political imperative to prop up employment and investment continues to override financial caution.
Zombie Firms and Evergreening Loans
One of the most worrying consequences of China’s credit boom is the rise of zombie firms, companies that earn too little from operations to cover their interest payments yet remain alive only because banks continually roll over their loans. Research from the Federal Reserve Bank of Dallas draws sharp parallels between today’s China and Japan in the 1980s and 1990s. In both cases, rapid credit growth was financed entirely by domestic savings rather than foreign borrowing, which reduced the immediate risk of a sudden crisis but created a long term drag on productivity. When savings are largely captive inside the banking system, state owned lenders face little funding pressure. They can extend new credit to insolvent borrowers simply to avoid recognizing losses on their balance sheets, a practice known as evergreening.
The numbers are stark. The share of assets held by zombie firms across all Chinese nonfinancial sectors climbed from 5% in 2018 to 16% in 2024. In real estate, the figure surged from 6% to 40%, reflecting the deep dysfunction in a sector that once powered growth. Manufacturing has also deteriorated, with zombie assets rising from 4% in 2020 to 11% in 2024, while the services sector reached 17%. These businesses consume capital, labor, and raw materials that could otherwise flow to more productive competitors, effectively clogging the arteries of the economy. Economists at the Dallas Fed note that this pattern depressed Japanese productivity for decades, particularly in sectors shielded from foreign competition.
The dynamic is already visible in Chinese industry. Business debt has doubled since 2019, yet revenues are only 30% higher. Roughly one third of Chinese companies are now losing money, but creditors keep rolling over loans to prevent mass defaults. The result is entrenched overcapacity, deflationary pressure, and a banking system increasingly devoted to keeping unproductive firms on life support rather than funding innovation.
Deflation, Overcapacity, and the Growth Paradox
China’s debt explosion has coincided with an equally troubling phenomenon: a sustained decline in prices. An economy wide price gauge shows China has endured deflation for three consecutive years, the longest stretch since the nation embraced market reforms in the late 1970s. Eleven consecutive quarters of falling prices have slashed nominal GDP growth to just 4%, the weakest reading since the reform era outside of the 2020 pandemic shock. When prices fall across the economy, the real burden of debt rises automatically because borrowers must repay loans with revenue that is shrinking in nominal terms.
The root cause is a state directed model that prioritizes production over consumption. Local governments and state owned banks have channeled credit into manufacturing capacity for electric vehicles, solar panels, steel, and robotics even as domestic demand falters. This has created what domestic policymakers call involution, a cycle of disorderly price competition in which too many firms fight for too little demand, driving prices lower and wiping out profit margins. Rather than stimulating healthy growth, the credit surge has amplified overcapacity. Chinese authorities have launched a campaign against involution targeting ten leading manufacturing sectors, but the structural incentives remain intact. Export dependent growth continues to be the default release valve for excess supply, which in turn risks inflaming trade tensions with the United States, Europe, and developing markets.
The paradox is that much of this borrowing was designed to prevent a slowdown. State owned banks lend to struggling firms to avoid job losses, and local governments borrow to build infrastructure and subsidize industry. Yet the product of eighteen years of credit expansion, as Williams observed, is a system where capital is trapped in unproductive enterprises, losses are widespread, and deflation has become entrenched. The medicine intended to sustain growth may instead be poisoning it.
Beijing’s Response and the Revenue Crunch
Chinese leaders are not blind to these dangers. The Ministry of Finance has rolled out a series of measures to contain local government debt risk, including a program that issued roughly 2.8 trillion yuan in special bonds in 2025 to swap hidden local liabilities for more transparent, longer maturity instruments with lower interest costs. Vice Finance Minister Liao Min has stressed that China’s official government debt to GDP ratio remains below the G20 average, arguing that Beijing still has considerable room to borrow at the central government level. The 2026 budget envisions continued proactive fiscal policy, with deficit targets and ultra long treasury bond issuance aimed at funding equipment upgrades, consumer goods replacement programs, and strategic infrastructure.
Yet the official narrative focuses narrowly on government debt, which stands at roughly 68.5% of GDP, while downplaying the corporate and hidden obligations that push the total far higher. Independent estimates suggest that local government financing vehicle debt alone could amount to 45% of GDP, layered on top of the official tally. Meanwhile, China’s fiscal foundation is weakening. The national tax to GDP ratio has fallen from nearly 16% in 2019 to 12.6% in 2025, eroded by slowing commerce, falling property transaction taxes, and a race among localities to offer unauthorized tax breaks in order to attract investment. Land sales, which once padded local budgets, have collapsed alongside the property market, straining the managed fund budget that finances much infrastructure spending.
The central government has responded by criticizing local officials for unauthorized tax incentives and by tightening controls over new borrowing. Minister of Finance Lan Foan warned local governments to observe what he called an iron discipline of not adding illegal debt. Still, the consolidated fiscal deficit, which strips out accounting maneuvers such as special bond proceeds counted as revenue, reached 7.2% of GDP in 2025, far above the official 4% target. That gap reveals the true scale of fiscal stress and suggests that even aggressive debt swapping may only buy time unless underlying revenues recover.
Global Ripples and the Path to 2031
China’s domestic debt problem is no longer a purely local concern. According to the International Monetary Fund, global government debt crossed $111 trillion in 2025, with the United States and China together accounting for more than half of that total. Washington carries $38.3 trillion in public debt, while Beijing holds $18.7 trillion. The IMF projects that global government debt will reach 102% of world GDP by 2031, a level last seen in the aftermath of World War II. Back then, booming reconstruction growth helped nations outgrow their obligations. Today, growth is slower and borrowing costs are higher, raising doubts about whether history can repeat itself.
Interest payments alone are expected to climb from roughly 3% of global GDP today to nearly 5% by 2031, creating a compounding cycle where new debt is issued primarily to service old debt. In the United States, persistent deficits of 7% to 8% of GDP could push federal debt to 142% of GDP within six years. China’s trajectory, while different in composition, points toward a government debt to GDP ratio near 127% on the sovereign side alone. Because both economies are so large, their fiscal trajectories ripple outward through trade channels, capital flows, and commodity markets. A sustained Chinese slowdown would reduce demand for raw materials and manufactured imports, while a disorderly deleveraging could trigger financial contagion across emerging Asia.
The contrast between the two economic giants is instructive. The United States borrows heavily in global capital markets and faces rising external financing costs. China relies on domestic savings and state directed banks, which insulates it from sudden capital flight but channels the risks inward, slowly eroding productivity and household wealth. Neither model appears sustainable without structural reform, yet neither government has shown a willingness to tighten fiscal policy meaningfully.
Can China Avoid a Lost Decade Like Japan?
For all the alarm, most economists do not expect a Lehman Brothers style financial crash in China. Capital controls, high domestic savings, and the state’s dominance of the banking sector create buffers that private market economies lack. The financial system already survived a severe stress test during the property market collapse, and state backed creditors can absorb losses over time rather than forcing immediate bankruptcies. This does not mean the system is healthy, only that its failures will unfold gradually rather than suddenly. As Liu Lei of the National Institution for Finance and Development argues, the real test is not the absolute level of debt but its efficiency. If credit expansion can reignite nominal growth, the ratio can stabilize without a crisis. A modest pickup in prices would support stronger nominal GDP and ease the automatic upward pressure on the debt burden.
That is a big if. China has spent nearly two decades deploying the same stimulus playbook, and the returns are clearly diminishing. The banking system now props up unproductive firms, widespread industrial losses have become normal, and deflationary psychology is settling in among consumers who see little reason to spend when prices are falling and wages are stagnant. The result is an economy where new credit feeds old problems rather than generating fresh growth. Williams captured the irony succinctly:
The irony is that one driver of both government borrowing and the lax lending standards of state owned banks is the desire to prop up economic growth and prevent job losses. But the product of a credit boom that has been underway for 18 years is a banking system propping up unproductive firms, widespread losses across industry, and entrenched overcapacity.
Without a decisive rebalancing toward household consumption, higher nominal incomes, and market driven capital allocation, China risks a long period of stagnation rather than a sudden crash. The debt will roll over, the zombies will shuffle on, and the debt ratio will grind higher. Whether that qualifies as stability or simply a slower form of crisis depends on how long Beijing can afford to pay the interest on its own economic contradictions.
The Essentials
- China’s total debt to GDP ratio excluding the financial sector has surpassed 300%, driven by corporate and government borrowing while households deleverage.
- State owned banks are rolling over loans to unprofitable zombie firms, which now hold roughly 16% of nonfinancial assets, crowding out productive investment.
- China has experienced three consecutive years of economy wide deflation, slashing nominal growth and raising the real burden of debt.
- Official government debt stands at roughly 68.5% of GDP, but hidden local government financing vehicle debt and corporate obligations push the total far higher.
- Beijing has launched a debt swap program valued at roughly 2.8 trillion yuan and vows stricter controls on illegal borrowing, yet local governments face falling tax revenue and collapsed land sales.
- The International Monetary Fund projects global government debt will hit 102% of world GDP by 2031, with China and the United States accounting for over half of the $111 trillion total.
