French borrowing costs have climbed to their highest level since 2002, and the yield spread between French and German government bonds has reached its peak since 2011. What are the driving factors behind this French debt crisis, and how far will the situation worsen? For most of the past decade, the market generally believed that lending to France was almost as safe as lending to Germany. Now, this perception is rapidly crumbling. Last week, the cost of financing French 10-year government bonds rose to its highest level since July 2002. The additional risk premium investors are demanding for French bonds compared to German bonds has widened to its highest level since the 2011-2012 Eurozone debt crisis. Currently, France's borrowing costs are higher than those of the two countries at the heart of that crisis—Italy and Greece. The impact extends far beyond the bond market. Government borrowing costs will be passed on to mortgage and corporate loan interest rates, ultimately costing all French taxpayers the money. So, how did France, the Eurozone's second-largest economy, reach this point? And where will the situation go? The root cause of France's soaring government debt to 119% of GDP is not complicated. The French government's annual fiscal expenditures far exceed tax revenues, with the shortfall being covered by borrowing. France's fiscal deficit is projected to reach 5.4% of GDP this year, while the EU's deficit cap is 3% of GDP. Year after year, the persistent fiscal deficit accumulates, transforming into national debt. Data from the French National Institute of Statistics and Economic Studies (INSEE) shows that in the second quarter of 2026, France's public debt reached €3.6 trillion, accounting for 119% of GDP, a further increase from 115.6% a year earlier. Once investors begin to doubt the country's debt repayment plan, a crisis will quietly brew. Why is the market losing patience with the French government ? France is not without plans; the problem lies in its past implementation record. Last Thursday, the minority government led by Prime Minister Sébastien Le Corny submitted a draft budget for 2027, planning to cut approximately €54 billion in spending and increase fiscal revenue. The draft aims to reduce the fiscal deficit in 2027 from 5.4% of GDP in 2026. About two-thirds of this budget adjustment relies on spending cuts, with the remaining one-third coming from increased taxes and social security contributions. Specific measures include saving €6 billion each in pensions and healthcare. Nominal government cash expenditures, excluding interest and defense spending, will be frozen, further compressing the real budget amid inflation. However, this draft budget has not reassured investors but has exacerbated market anxieties. Le Koarni's government does not hold a majority in the National Assembly; the parliament will debate the draft on October 13, and a presidential election is scheduled for the spring of 2027. Stéphane Colliaque, an economist at BNP Paribas, points out that France has already failed to meet its budget targets for three out of the four years between 2023 and 2026. With both interest and defense spending rising, Colliaque estimates that the government would need to implement a cost-cutting plan equivalent to 1% of GDP just to reduce the deficit by 0.4 percentage points. The supply of government bonds is also under increasing pressure. Due to the concentrated maturity of old debts during the pandemic, the French Ministry of Finance plans to issue €340 billion in new government bonds in 2027, an increase of €20 billion compared to this year. Even if all plans are implemented, Kolyak predicts that France's debt-to-GDP ratio will still rise to 121% by 2027, and will not stabilize at 124% until 2032. Enrique Diaz-Alvarez, chief economist at Ebri Consulting, stated, "The political deadlock in Paris remains unresolved." He added that the budget proposal has also been questioned by French fiscal regulators. Student protests in several French cities due to insufficient school funding have further increased the government's governance pressure. Why is French sovereign risk erupting at this time? In addition to the French 10-year bond yield breaking through 5%, the spread between French and German bond yields has widened, directly reflecting investors' growing concerns about French debt. The risk premium of French bonds relative to German bonds has reached 152 basis points (1.52 percentage points), returning to the level during the 2011 Eurozone crisis. The strategist team at Intesa Sanpaolo, led by Gian Marco Salcioli, believes that the speed of market changes is more crucial than the absolute value. Analysts say that when yields surge so rapidly, market concerns shift from "the cost of borrowing" to "whether the principal can be fully recovered," with France being a prime example. Saljoli wrote in a client research report, "This market trend transforms simple interest rate risk into a broader range of risks, primarily credit default risk." Diaz-Alvarez noted that this is the largest weekly widening of the Franco-German bond spread in seventeen years. Will the crisis spread to the whole of Europe? Warning signs are already emerging. ING strategists Michel Tucker and Benjamin Schroeder wrote that during the French debt crisis, the spread between Italian and Greek bonds and German bonds widened by nearly 15 basis points. They wrote, "The debt problem is no longer seen as a problem solely for France." The foreign exchange market also reacted. Intesa Sanpaolo bank foreign exchange analysts Luca Cigonini and Fabio Vacly pointed out that even with weak US employment data, the euro still fell to $1.1161 during Monday's Asian trading session. Analysts warn that concerns about French fiscal policy could push the euro further towards $1.10. This presents the European Central Bank (ECB) with a dilemma. Eurozone inflation rose to 3.8% in September, providing justification for continued monetary tightening; however, tensions in the bond market support a pause in interest rate hikes and consideration of support measures. Ana Munella, Global Markets Strategy Director at Banco Bilbao Vizcaya Argentaria (BBVA), stated, "From an interest rate spread perspective, if the ECB pauses rate hikes, it will put downward pressure on the euro; but if the debt market stabilizes, funds will flow back into euro assets." The ECB has a dedicated bond-buying tool—the Transmission Protection Instrument (TPI)—to address market volatility without fundamental support. However, activating this tool requires multiple conditions, including debt sustainability and compliance with fiscal policy requirements. It will not unconditionally bail out French borrowing costs. Purchasing bonds through this tool can alleviate unreasonable disparities in borrowing costs among countries without requiring the ECB to lower its benchmark interest rate. How serious is the risk? The most direct risk is that a political deadlock could prevent the French budget from passing through parliament. Munella of BBVA warned that the Le Kohn government might not receive enough parliamentary support and could be forced to step down. If the budget bill fails to pass, France will have to rely on emergency legislation to maintain basic government operations, as it did in 2025 and 2026. Every delay comes at a cost. BNP Paribas' Kollac estimates that if large-scale deficit reduction measures are postponed until 2028, France's debt-to-GDP ratio will climb to 126% by 2032. Next year, France's financing needs will reach €340 billion, and every 0.1 percentage point increase in borrowing costs will rapidly amplify the interest burden. However, there is no need for excessive panic. France has not lost its ability to access capital markets; lenders are simply demanding higher interest returns and a credible reform plan. The first major parliamentary test of this credibility will be on October 13th, when the National Assembly will formally begin debating the budget draft.