The mathematics of Italian debt are unforgiving. With debt at 142% of GDP and anemic growth, Italy must run a substantial primary surplus—tax revenue minus spending, excluding interest payments—just to prevent the debt ratio from rising further. But Italy's aging population and sclerotic economy make sustained surpluses politically impossible.

I covered the 2012 debt crisis from Brussels, when then-ECB President Mario Draghi promised to do whatever it takes to save the euro. That promise worked—bond markets calmed, and Italy's borrowing costs fell to sustainable levels. But Draghi is no longer at the ECB. His successor, Christine Lagarde, faces a much more difficult political environment, with Germany and the Netherlands opposed to unlimited bond purchases.

Moreover, the geopolitical context has changed. In 2012, European leaders could unite around preserving the euro because the alternative—currency fragmentation—was unthinkable. In 2026, populist movements across Europe have made euro exit a live political option. Italy's current government, led by Prime Minister Giorgia Meloni, has stopped short of calling for euro exit, but elements within her coalition have advocated for parallel currency systems that would effectively undermine the single currency.

The immediate risk is not default—Italy's debt is denominated in euros, and the ECB can always intervene to prevent a liquidity crisis. The real risk is a slow-motion erosion of confidence that raises Italy's borrowing costs to unsustainable levels, forcing a choice between default, exit from the euro, or permanent fiscal dependency on European institutions.

European officials are acutely aware of the danger. "Greece was a crisis we could manage because Greece is small," one senior EU official told me on condition of anonymity. "If Italy goes, the euro goes. And if the euro goes, the entire European project collapses."

Yet solving Italy's debt problem would require either massive transfers from creditor countries like Germany—politically unacceptable—or painful structural reforms that would devastate Italy's economy in the short term. Italy's labor market protections, pension system, and tax structure all discourage growth, but reforming them would inflict economic pain on millions of voters.

The Commission's projections show Greece reducing its debt burden through a combination of GDP growth and fiscal discipline. Greece ran a primary surplus of 2.6% of GDP in 2025 and is projected to maintain surpluses above 2% through the end of the decade. Italy, by contrast, is forecast to run only a 1.2% primary surplus this year, insufficient to stabilize its debt trajectory.

Financial markets have not yet panicked. Italy's 10-year bond yields remain below 4%, a manageable level given current economic conditions. But bond traders have long memories. They remember 2011, when Italian yields spiked above 7% and forced Prime Minister Silvio Berlusconi from office. If markets lose confidence that Italy can service its debt, yields could spike again—and this time, there may be no Draghi to calm them.

The tragedy of Italy's debt crisis is that it was entirely predictable. For two decades, Italian governments of left and right promised reforms they never implemented. For two decades, they ran deficits in good times and bad. And for two decades, European officials warned that the mathematics would eventually catch up.

Now the reckoning has arrived. Italy is the eurozone's most indebted country, with a debt burden that can only be sustained through perpetual ECB intervention or economic growth that shows no sign of materializing. The question is not whether Italy will face a crisis, but when—and whether the euro can survive it.